# AndroidStudio

**Repository Path**: wei13013451000/android-studio

## Basic Information

- **Project Name**: AndroidStudio
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 0
- **Created**: 2024-01-16
- **Last Updated**: 2024-01-26

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# [文档地址](https://developer.android.google.cn/?hl=zh-cn)


distributionUrl=https://mirrors.cloud.tencent.com/gradle/gradle-8.2-bin.zip


# 一.Adroid UI 组件层次结构

![image-20240118142316791](README/image-20240118142316791.png)

## 1.view

![image-20240118140738389](README/image-20240118140738389.png)

![image-20240118140837095](README/image-20240118140837095.png)

![image-20240118141354678](README/image-20240118141354678.png)

## 2. viewGroup

![image-20240118141446022](README/image-20240118141446022.png)

![image-20240118141556856](README/image-20240118141556856.png)

![image-20240118141745999](README/image-20240118141745999.png)



![image-20240118142228479](README/image-20240118142228479.png)

# 二.控制UI界面

![image-20240118142439830](README/image-20240118142439830.png)

## 1.xml文件控制UI界面

![image-20240118142634023](README/image-20240118142634023.png)

![image-20240118142747238](README/image-20240118142747238.png)

## 2.java代码控制UI界面

![image-20240118144159194](README/image-20240118144159194.png)

![image-20240118144218408](README/image-20240118144218408.png)

```java
package com.doudou;

import android.app.AlertDialog;
import android.app.DatePickerDialog;
import android.content.DialogInterface;
import android.graphics.Color;
import android.preference.DialogPreference;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onDestroy() {
        super.onDestroy();
        Log.i("桌面台球", "onDestroy");
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
//        setContentView(R.layout.activity_main);
        /**
         * java代码显示布局界面
         */
        FrameLayout frameLayout = new FrameLayout(this);
        frameLayout.setBackgroundColor(Color.rgb(17, 85, 0));
        setContentView(frameLayout);

        TextView text1 = new TextView(this);
        text1.setText("开始游戏1");
        text1.setTextSize(TypedValue.COMPLEX_UNIT_SP, 18);
        text1.setTextColor(Color.rgb(250, 250, 250));

        FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
                ViewGroup.LayoutParams.WRAP_CONTENT);
        params.gravity = Gravity.CENTER;

        text1.setLayoutParams(params);
        text1.setOnClickListener(
                new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        new AlertDialog.Builder(MainActivity.this).setTitle("系统提示")
                                .setMessage("游戏有风险,进入需要谨慎,要进入嘛?")
                                .setPositiveButton("确定",
                                        new DialogInterface.OnClickListener() {
                                            @Override
                                            public void onClick(DialogInterface dialog, int which) {
                                                Log.i("桌面台球", "进入游戏");
                                            }
                                        }).setNegativeButton("退出", new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                Log.i("桌面台球", "退出游戏");
                                finish();
                            }
                        }).show();
                    }
                });

        frameLayout.addView(text1);
    }
}

```

## 3.java代码和xml混合控制UI界面

**![image-20240118172630642](README/image-20240118172630642.png)**

![image-20240118195710633](README/image-20240118195710633.png)

```xml
<?xml version="1.0" encoding="utf-8"?>
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/layout"
    android:orientation="horizontal"
    android:rowCount="2"
    android:columnCount="2"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.doudou.xmljavlayou.MainActivity">
</GridLayout>

```

```java
package com.doudou.xmljavlayou;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.ViewGroup;
import android.widget.GridLayout;
import android.widget.ImageView;

public class MainActivity extends AppCompatActivity {
    private ImageView []img = new ImageView[4];
    private int[] imgPath= new int[]{
            R.mipmap.img01, R.mipmap.img02, R.mipmap.img03, R.mipmap.img04,
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        GridLayout layout = (GridLayout) findViewById(R.id.layout);
        for (int i=0;i<imgPath.length;i++){
            img[i] = new ImageView(MainActivity.this);
            img[i].setImageResource(imgPath[i]);
            img[i].setPadding(2, 2, 2, 2);
            ViewGroup.LayoutParams params = new ViewGroup.LayoutParams(116,68);
            img[i].setLayoutParams(params);
            layout.addView(img[i]);
        }
    }
}

```

## 4.自定义view

![image-20240118221559007](README/image-20240118221559007.png)

![image-20240118221713866](README/image-20240118221713866.png)

```xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.doudou.myviewrabbit.MainActivity"
    android:background="@mipmap/bg"
    android:id="@+id/mylayout"
    >
</FrameLayout>

```

```java
package com.doudou.myviewrabbit;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.widget.FrameLayout;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        FrameLayout frameLayout = (FrameLayout) findViewById(R.id.mylayout);
        final RabbitView rabbitView = new RabbitView(this);
        rabbitView.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                rabbitView.bitmapX = event.getX();
                rabbitView.bitmapY = event.getY();
                rabbitView.invalidate();//重绘
                return true;
            }
        });

        frameLayout.addView(rabbitView);
    }
}

```

```java
package com.doudou.myviewrabbit;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.view.View;

/**
 * Created by 25464 on 2024/1/18.
 */
public class RabbitView extends View {
    public float bitmapX;
    public float bitmapY;

    public RabbitView(Context context) {
        super(context);
        bitmapX= 50;
        bitmapY=50;
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);

        Paint paint = new Paint();//画笔

        Bitmap bitmap= BitmapFactory.decodeResource(this.getResources(),R.mipmap.rabbit1);

        canvas.drawBitmap(bitmap,bitmapX,bitmapY,paint);
        if (bitmap.isRecycled()){
            bitmap.recycle();//回收图片
        }
    }


}

```

# 三.布局管理器

![image-20240118233011562](README/image-20240118233011562.png)

![image-20240118233053588](README/image-20240118233053588.png)

![image-20240118233156554](README/image-20240118233156554.png)

![image-20240118233248746](README/image-20240118233248746.png)

## 1.相对布局管理器relativeLayout

![image-20240118233357934](README/image-20240118233357934.png)

## 2.侦布局管理器

![image-20240118234621212](README/image-20240118234621212.png)

## 3.表格布局管理器

![image-20240118235136791](README/image-20240118235136791.png)

![image-20240119000010931](README/image-20240119000010931.png)

```xml
<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@mipmap/bg"
    android:stretchColumns="0,3"
    >

    <TableRow android:paddingTop="200dp">
        <TextView />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal"
            android:padding="@dimen/activity_vertical_margin"
            android:text="账 号:"
            android:textColor="#ffffff"
            android:textSize="18sp" />
        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="邮箱或手机号"
            android:textColorHint="#ddd" />
        <TextView />
    </TableRow>

    <TableRow>
        <TextView />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal"
            android:padding="@dimen/activity_vertical_margin"
            android:text="密 码:"
            android:textColor="#ffffff"
            android:textSize="18sp"
            />
        <EditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="输入6-16位数字或字母"
            android:textColorHint="#ddd" />

        <TextView />
    </TableRow>
    <TableRow>
        <TextView />
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal"
            android:padding="@dimen/activity_vertical_margin"
            android:text="注  册"
            />
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="登  录"
            android:background="#ff8244" />
        <TextView />
    </TableRow>
    <TableRow android:paddingTop="20dp">
        <TextView />
        <TextView />
        <TextView
            android:layout_height="wrap_content"
            android:layout_width="wrap_content"
            android:text="忘记密码?"
            android:textColor="#ffffff"
            android:gravity="right"
            />
        <TextView />
    </TableRow>
</TableLayout>

```

## 4.网格布局管理器

![image-20240119005938574](README/image-20240119005938574.png)

![image-20240119010027805](README/image-20240119010027805.png)

![image-20240119010044629](README/image-20240119010044629.png)

![image-20240119010142431](README/image-20240119010142431.png)

```xml
<?xml version="1.0" encoding="utf-8"?>
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.doudou.gradlayout.MainActivity"

    >

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_column="0"
        android:layout_row="0"
        android:text="button1" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_column="2"
        android:layout_row="1"
        android:text="button2" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_column="1"
        android:layout_row="0"
        android:layout_rowSpan="2"
        android:layout_gravity="fill"
        android:text="button3" />

    <!--<Button-->
        <!--android:layout_width="wrap_content"-->
        <!--android:layout_height="wrap_content"-->
        <!--android:text="button4" />-->

    <!--<Button-->
        <!--android:layout_width="wrap_content"-->
        <!--android:layout_height="wrap_content"-->
        <!--android:text="button5" />-->
</GridLayout>

```

![image-20240119011357463](README/image-20240119011357463.png)

## 5.布局管理器嵌套

![image-20240119094503040](README/image-20240119094503040.png)

![image-20240119094743452](README/image-20240119094743452.png)

![image-20240119094804965](README/image-20240119094804965.png)

```xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.doudou.friend.MainActivity"
    android:orientation="vertical">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="10dp"
        >
        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_margin="10dp"
            android:src="@mipmap/ico1"
            android:id="@+id/ico1"/>
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/name1"
            android:textColor="#576b95"
            android:layout_marginTop="10dp"
            android:layout_toRightOf="@id/ico1"
            android:text="小可爱" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/content1"
            android:layout_marginTop="5dp"
            android:layout_marginBottom="5dp"
            android:minLines="3"
            android:layout_toRightOf="@id/ico1"
            android:layout_below="@id/name1"
            android:text="祝我的朋友们新年快乐!" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/time1"
            android:textColor="#9a9a9a"
            android:layout_marginTop="3dp"
            android:layout_below="@id/content1"
            android:layout_toRightOf="@id/ico1"
            android:text="2024年1月19日10:06:41" />

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_below="@id/content1"
            android:src="@mipmap/icon2"
            />
    </RelativeLayout>
    <ImageView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@mipmap/line"
        />
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="10dp"
        >
        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_margin="10dp"
            android:src="@mipmap/ico1"
            android:id="@+id/ico2"/>
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/name2"
            android:textColor="#576b95"
            android:layout_marginTop="10dp"
            android:layout_toRightOf="@id/ico2"
            android:text="小可爱" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/content2"
            android:layout_marginTop="5dp"
            android:layout_marginBottom="5dp"
            android:minLines="3"
            android:layout_toRightOf="@id/ico2"
            android:layout_below="@id/name2"
            android:text="祝我的朋友们新年快乐!" />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/time2"
            android:textColor="#9a9a9a"
            android:layout_marginTop="3dp"
            android:layout_below="@id/content2"
            android:layout_toRightOf="@id/ico2"
            android:text="2024年1月19日10:06:41" />

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_below="@id/content2"
            android:src="@mipmap/icon2"
            />
    </RelativeLayout>
    <ImageView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@mipmap/line"
        />

</LinearLayout>

```

# 四.基本UI组件

![image-20240119102219886](README/image-20240119102219886.png)

![image-20240119103921346](README/image-20240119103921346.png)

## 1.文本框组件

![image-20240119104027165](README/image-20240119104027165.png)

```xml
<?xml version="1.0" encoding="utf-8"?>
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@mipmap/bgl"
    android:columnCount="6"
    android:orientation="vertical"
    android:padding="10dp"
    tools:context="com.doudou.friend.MainActivity">
<!--1-->
    <TextView
        android:id="@+id/text1"
        android:background="@drawable/bg_blue"
        android:maxWidth="180dp"
        android:padding="25dp"
        android:text="你好奥,还就不见,最近在干什么呢???????????????????"
        android:textColor="#16476B"
        android:textSize="14sp"
        android:layout_column="1"
        android:layout_columnSpan="4"
        android:layout_gravity="end"
        android:layout_row="0"
        android:layout_marginRight="5dp"
        android:layout_marginBottom="20dp"
         />
    <ImageView
        android:id="@+id/img2"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:layout_column="5"
        android:layout_row="0"
        android:src="@mipmap/head1" />
<!--2-->

    <ImageView
        android:id="@+id/img3"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:layout_column="0"
        android:layout_row="1"
        android:layout_marginRight="5dp"
        android:src="@mipmap/head2" />

    <ImageView
        android:id="@+id/img4"
        android:layout_row="1"
        android:layout_column="1"
        android:layout_marginBottom="20dp"
        android:src="@mipmap/bg_gray" />
<!--3-->
    <ImageView
        android:id="@+id/img11"
        android:layout_column="1"
        android:layout_columnSpan="4"
        android:layout_gravity="end"
        android:layout_row="2"
        android:layout_marginRight="5dp"
        android:layout_marginBottom="20dp"
        android:src="@mipmap/bg_blue" />

    <ImageView
        android:id="@+id/img21"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:layout_column="5"
        android:layout_row="2"
        android:src="@mipmap/head1" />

<!--4-->
    <ImageView
        android:id="@+id/img31"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:layout_column="0"
        android:layout_row="3"
        android:layout_marginRight="5dp"
        android:src="@mipmap/head2" />

    <ImageView
        android:id="@+id/img41"

        android:layout_row="3"
        android:layout_column="1"
        android:layout_marginBottom="20dp"
        android:src="@mipmap/bg_gray" />
</GridLayout>

```

## 2.编辑框组件

![image-20240119125011768](README/image-20240119125011768.png)

![image-20240119130222180](README/image-20240119130222180.png)

![image-20240119130325900](README/image-20240119130325900.png)

![image-20240119131540442](README/image-20240119131540442.png)

```xml
<?xml version="1.0" encoding="utf-8"?><!--qq说说-->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#eaeaea"
    android:orientation="vertical"
    android:padding="16dp"
    tools:context="com.doudou.friend.MainActivity">

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#ffffff"
        android:gravity="top"
        android:hint="说点什么吧..."
        android:lines="6"
        android:padding="5dp"
        android:layout_marginBottom="10dp"
        android:inputType="textMultiLine"/>
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:drawableLeft="@mipmap/ic_launcher"
        android:drawablePadding="8dp"
        android:text="添加照片"
        android:gravity="center_vertical"
        android:background="#ffffff"
        android:padding="8dp"
        />

</LinearLayout>
```



## 3.按钮组件

### 1.普通按钮

![image-20240119133338797](README/image-20240119133338797.png)

![image-20240119135111027](README/image-20240119135111027.png)

### 2.图片按钮

![image-20240119135631814](README/image-20240119135631814.png)

![image-20240119135731894](README/image-20240119135731894.png)

```xml
  <ImageButton
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:id="@+id/img_btn1"
      android:src="@mipmap/start_btn"
      android:background="#0000"
      android:onClick="myOnclick"
      />
```

### 3.单选按钮

![image-20240119141727199](README/image-20240119141727199.png)

![image-20240119144009074](README/image-20240119144009074.png)

```xml
<?xml version="1.0" encoding="utf-8"?><!--qq说说-->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#eaeaea"
    android:orientation="vertical"
    android:padding="16dp"
    tools:context="com.doudou.friend.MainActivity">

    <ImageButton
        android:id="@+id/img_btn1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="#0000"
        android:onClick="myOnclick"
        android:src="@mipmap/ic_launcher" />

    <RadioGroup
        android:id="@+id/g1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">

        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="男" />

        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="女" />

        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"

            android:text="人妖" />
    </RadioGroup>

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="subClick"
        android:text="提交"
        />

</LinearLayout>
```

```java
package com.doudou.qqlist;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    private RadioGroup radioGroup;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.image_button);

        radioGroup = (RadioGroup) findViewById(R.id.g1);

        radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {
                RadioButton c = (RadioButton) findViewById(checkedId);
                Toast.makeText(MainActivity.this, "性别:" + c.getText(), Toast.LENGTH_SHORT).show();
            }
        });
    }


    public void subClick(View v) {
        for (int i = 0; i < radioGroup.getChildCount(); i++) {
            RadioButton radioButton = (RadioButton) radioGroup.getChildAt(i);
            if (radioButton.isChecked()) {
                Toast.makeText(MainActivity.this, radioButton.getText(), Toast.LENGTH_SHORT).show();
                break;
            }
        }

    }


}

```

![image-20240119144034475](README/image-20240119144034475.png)

### 4.复选框

![image-20240119145112518](README/image-20240119145112518.png)

![image-20240119145803674](README/image-20240119145803674.png)

![image-20240119145854856](README/image-20240119145854856.png)

![image-20240119145937516](README/image-20240119145937516.png)

![image-20240119150522332](README/image-20240119150522332.png)

![image-20240119150931366](README/image-20240119150931366.png)

# 五.监听器

![image-20240119133724087](README/image-20240119133724087.png)

![image-20240119133752952](README/image-20240119133752952.png)

## 1.匿名内部类实现

```xml
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="按钮1"
        android:id="@+id/bt1"
        />
```

```java
package com.doudou.qqlist;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.qq_speak);

        Button button = (Button) findViewById(R.id.bt1);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(MainActivity.this,"单击了按钮1",Toast.LENGTH_SHORT).show();
            }
        });
    }
}

```

![image-20240119134623801](README/image-20240119134623801.png)

## 2.onClick属性来实现

![image-20240119134750079](README/image-20240119134750079.png)

```xml
    <Button
        android:id="@+id/bt2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="myClick"
        android:text="按钮2" />
```

```java
    public void myClick(View view){
        Toast.makeText(MainActivity.this,"单击了按钮2",Toast.LENGTH_SHORT).show();
    }
```

# 六.高级UI组件

![image-20240119151419529](README/image-20240119151419529.png)

## 1.进度条

![image-20240119151506280](README/image-20240119151506280.png)

![image-20240119152505983](README/image-20240119152505983.png)

![image-20240119152840374](README/image-20240119152840374.png)

![image-20240119155637398](README/image-20240119155637398.png)

```xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.doudou.test.MainActivity">

    <ProgressBar
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:max="100"
        android:progress="58" />

    <ProgressBar
        style="?android:attr/progressBarStyleLargeInverse"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />


    <ProgressBar
        style="@android:style/Widget.ProgressBar.Horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:max="100"
        android:progress="58" />

    <ProgressBar
        android:id="@+id/progressBar"
        style="@android:style/Widget.ProgressBar.Horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="100dp"
        android:max="100" />
</LinearLayout>

```

```java
package com.doudou.test;

import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.Toast;


public class MainActivity extends AppCompatActivity {

    private ProgressBar progressBar;
    private int mProgress = 0;
    private Handler mHandler;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.high_ui_progress_bar);
        progressBar = (ProgressBar) findViewById(R.id.progressBar);

        //消息处理对象
        mHandler = new Handler() {
            @Override
            public void handleMessage(Message msg) {
                if (msg.what == 0x111) {
                    progressBar.setProgress(mProgress);
                } else {
                    Toast.makeText(MainActivity.this, "耗时操作已完成", Toast.LENGTH_SHORT).show();
                    progressBar.setVisibility(View.GONE);
                }
            }
        };

        new Thread(new Runnable() {
            @Override
            public void run() {
                while (true) {
                    mProgress = doWork();
                    Message m = new Message();
                    if (mProgress < 100) {//耗时完成
                        m.what = 0x111;
                        mHandler.sendMessage(m);
                    } else {//耗时未完成
                        m.what = 0x110;
                        mHandler.sendMessage(m);
                        break;
                    }
                }
            }

            private int doWork() {
                mProgress += Math.random() * 10;
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }

                return mProgress;
            }
        }).start();

    }
}

```

## 2.拖动条

![image-20240119155823833](README/image-20240119155823833.png)

```xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    tools:context="com.doudou.test.MainActivity">

   <SeekBar
       android:id="@+id/seekBar"
       android:max="10"
       android:progress="2"
       android:thumb="@mipmap/ic_launcher"
       android:layout_width="match_parent"
       android:layout_height="wrap_content" />
</LinearLayout>

```

```java

package com.doudou.test;

import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.SeekBar;
import android.widget.Toast;
/**
 * 拖动条
 */
public class MainActivity extends AppCompatActivity {


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.seek_bar);

        SeekBar seekBar = (SeekBar) findViewById(R.id.seekBar);

        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                Toast.makeText(MainActivity.this, "进度改变"+progress, Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {
                Toast.makeText(MainActivity.this, "开始触摸", Toast.LENGTH_SHORT).show();

            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {
                Toast.makeText(MainActivity.this, "停止触摸", Toast.LENGTH_SHORT).show();

            }
        });
    }
}

```

![image-20240119160912114](README/image-20240119160912114.png)

![image-20240119161517001](README/image-20240119161517001.png)

![image-20240119161537504](README/image-20240119161537504.png)

## 3.图像类

![image-20240119161623372](README/image-20240119161623372.png)

![image-20240119162314768](README/image-20240119162314768.png)



## 4.列表类

### 1.下拉列表

![image-20240119162735396](README/image-20240119162735396.png)

![image-20240119164441940](README/image-20240119164441940.png)

![image-20240119164500231](README/image-20240119164500231.png)

![image-20240119164516942](README/image-20240119164516942.png)

### 2.列表视图

![image-20240119164735225](README/image-20240119164735225.png)

![image-20240119170045846](README/image-20240119170045846.png)

```xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.doudou.spinner.MainActivity">


    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="370dp"></ListView>


</LinearLayout>

```

```xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal"
    >

    <ImageView
        android:id="@+id/image"
        android:adjustViewBounds="true"
        android:maxWidth="72dp"
        android:maxHeight="72dp"
        android:paddingBottom="10dp"
        android:paddingTop="10dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/title"
        android:padding="10dp"
        android:gravity="center"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</LinearLayout>

```

```java
package com.doudou.spinner;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Spinner;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.list_view);

        int[] images = {
                R.drawable.head, R.drawable.head, R.drawable.head, R.drawable.head, R.drawable.head, R.drawable.head,
                R.drawable.head, R.drawable.head, R.drawable.head, R.drawable.head, R.drawable.head, R.drawable.head,
        };

        String[] titles = {
                "张三1", "张三2", "张三3", "张三4", "张三5", "张三6",
                "张三11", "张三21", "张三31", "张三41", "张三51", "张三61",
        };

        List<Map<String,Object>> listItem = new ArrayList<Map<String,Object>>();

        for (int i = 0;i<images.length;i++){
            Map<String, Object> map = new HashMap<String, Object>();
            map.put("image",images[i]);
            map.put("name",titles[i]);
            listItem.add(map);
        }

        SimpleAdapter adapter = new SimpleAdapter(this,listItem,
                R.layout.main,new String[]{"name","image"},new int[]{R.id.title,R.id.image});

        ListView listView = (ListView) findViewById(R.id.listView);

        listView.setAdapter(adapter);

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                Map<String, Object> map = (Map<String, Object>) parent.getItemAtPosition(position);
                Toast.makeText(MainActivity.this, map.get("name").toString(), Toast.LENGTH_LONG).show();
            }

        });
    }
}

```

### 3.滚动视图

![image-20240119213529981](README/image-20240119213529981.png)

![image-20240119213541376](README/image-20240119213541376.png)

#### 1.xml创建滚动视图

![image-20240119214907047](README/image-20240119214907047.png)

#### 2.java代码创建滚动视图

![image-20240119215323845](README/image-20240119215323845.png)

![image-20240119215440303](README/image-20240119215440303.png)

![image-20240119220046899](README/image-20240119220046899.png)

![image-20240119220125081](README/image-20240119220125081.png)

## 5.通用

## 1.选项卡

![image-20240119220236042](README/image-20240119220236042.png)

![image-20240119220331885](README/image-20240119220331885.png)

![image-20240119220341549](README/image-20240119220341549.png)

# 说明

由于项目太多,电脑卡顿,把前面6部分剪切到unit1目录,再新建一个unit2,在unit2创建一个新项目继续学习

# 七.基本单元activity

![image-20240120002401715](README/image-20240120002401715.png)

![image-20240120003441572](README/image-20240120003441572.png)

![image-20240120003610436](README/image-20240120003610436.png)

![image-20240120003646935](README/image-20240120003646935.png)

![image-20240120003658587](README/image-20240120003658587.png)

## 1.创建activity

### 1.手动创建后在配置文件配置

![image-20240120004410744](README/image-20240120004410744.png)

![image-20240120004734722](README/image-20240120004734722.png)

![image-20240120004718418](README/image-20240120004718418.png)

### 2.编辑器向导创建activity

![image-20240120005019389](README/image-20240120005019389.png)

![image-20240120005046613](README/image-20240120005046613.png)

### 3.启动和关闭activity

![image-20240120005538457](README/image-20240120005538457.png)

![image-20240120005511777](README/image-20240120005511777.png)

![image-20240120010908749](README/image-20240120010908749.png)

![image-20240120013122442](README/image-20240120013122442.png)

### 4.使用Bundle在activity之间交换数据

![image-20240120013428476](README/image-20240120013428476.png)



![image-20240120013504829](README/image-20240120013504829.png)

![image-20240120013520683](README/image-20240120013520683.png)

![image-20240120013548649](README/image-20240120013548649.png)

```xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.doudou.unit2.MainActivity">

    <EditText
        android:id="@+id/editName"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="请填写姓名" />

    <EditText
        android:id="@+id/editPhone"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="请填写电话"
        android:inputType="number" />

    <Button
        android:id="@+id/bt1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="save"
        android:text="保存" />
</LinearLayout>

```

```xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.doudou.unit2.Detail">

    <Button
        android:id="@+id/bt2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="back"
        android:text="返回" />

    <TextView
        android:id="@+id/textName"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/textPhone"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
</LinearLayout>

```

```java
package com.doudou.unit2;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void save(View v) {
        String editText = ((EditText) findViewById(R.id.editName)).getText().toString();
        String editPhone = ((EditText) findViewById(R.id.editPhone)).getText().toString();

        if (!"".equals(editText) && !"".equals(editPhone)) {
            Intent intent = new Intent(MainActivity.this, DetailActivity.class);
            Bundle bundle = new Bundle();
            bundle.putCharSequence("name",editText);
            bundle.putCharSequence("phone",editPhone);
            intent.putExtras(bundle);
            startActivity(intent);

        } else {
            Toast.makeText(MainActivity.this, "请将地址填写完整!", Toast.LENGTH_SHORT).show();
        }
    }
}

```

```java
package com.doudou.unit2;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;

public class DetailActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_detail);
        Intent intent = getIntent();
        Bundle bundle = intent.getExtras();
        String name = bundle.getString("name");
        String phone = bundle.getString("phone");
        TextView textViewName = (TextView) findViewById(R.id.textName);
        TextView textViewPhone = (TextView) findViewById(R.id.textPhone);
        textViewName.setText(name);
        textViewPhone.setText(phone);
    }

    public void back(View v){
       finish();
    }
}

```

### 5.调用另一个activity并返回结果

![image-20240120022937117](README/image-20240120022937117.png)

![image-20240120023002868](README/image-20240120023002868.png)

![image-20240120023128278](README/image-20240120023128278.png)

![image-20240120023201535](README/image-20240120023201535.png)

# 八. Fragment

![image-20240120023738484](README/image-20240120023738484.png)

![image-20240120023821398](README/image-20240120023821398.png)

![image-20240120023941627](README/image-20240120023941627.png)



![image-20240120024416961](README/image-20240120024416961.png)



![image-20240120024448685](README/image-20240120024448685.png)

![image-20240120024823849](README/image-20240120024823849.png)

![image-20240120024921819](README/image-20240120024921819.png)

![image-20240120024748709](README/image-20240120024748709.png)

![image-20240120024759249](README/image-20240120024759249.png)

![image-20240120024836219](README/image-20240120024836219.png)

![image-20240120025147492](README/image-20240120025147492.png)

![image-20240120025339479](README/image-20240120025339479.png)

![image-20240120025401251](README/image-20240120025401251.png)

## 1.fragment-tag切换

![image-20240120025420027](README/image-20240120025420027.png)

```xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
<ImageView
    android:src="@drawable/one"
    android:scaleType="fitXY"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />
</RelativeLayout>
```

```xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.doudou.unit2.MainActivity">

    <fragment
        android:id="@+id/fragment"
        android:name="com.doudou.unit2.WeChat_Fragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:layout="@layout/wechat_fragment" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:background="#ffffff"
        android:layout_alignParentBottom="true"
        android:orientation="horizontal">

        <ImageView
            android:id="@+id/image1"
            android:layout_width="0dp"
            android:layout_height="50dp"
            android:layout_weight="1"
            android:src="@drawable/ic1" />

        <ImageView
            android:id="@+id/image2"
            android:layout_width="0dp"
            android:layout_height="50dp"
            android:layout_weight="1"
            android:src="@drawable/ic2" />

        <ImageView
            android:id="@+id/image3"
            android:layout_width="0dp"
            android:layout_height="50dp"
            android:layout_weight="1"
            android:src="@drawable/ic3" />

        <ImageView
            android:id="@+id/image4"
            android:layout_width="0dp"
            android:layout_height="50dp"
            android:layout_weight="1"
            android:src="@drawable/ic4" />
    </LinearLayout>

</RelativeLayout>

```

```java
package com.doudou.unit2;

import android.app.Fragment;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

/**
 * Created by 25464 on 2024/1/20.
 */
public class WeChat_Fragment extends Fragment {
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.wechat_fragment, null);
        return view;
    }
}

```

```java
package com.doudou.unit2;

import android.app.Fragment;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.ImageView;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ImageView imageView1 = (ImageView) findViewById(R.id.image1);
        ImageView imageView2 = (ImageView) findViewById(R.id.image2);
        ImageView imageView3 = (ImageView) findViewById(R.id.image3);
        ImageView imageView4 = (ImageView) findViewById(R.id.image4);
        imageView1.setOnClickListener(l);
        imageView2.setOnClickListener(l);
        imageView3.setOnClickListener(l);
        imageView4.setOnClickListener(l);

    }
    View.OnClickListener l = new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            FragmentManager fragmentManager = getFragmentManager();
            FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
            Fragment fragment = null;
            switch (v.getId()) {
                case R.id.image1:
                    fragment = new WeChat_Fragment();
                    break;
                case R.id.image2:
                    fragment = new Find_Fragment();
                    break;
                case R.id.image3:
                    fragment = new Me_Fragment();
                    break;
                case R.id.image4:
                    fragment = new Message_Fragment();
                    break;
                default:
                    break;
            }
            fragmentTransaction.replace(R.id.fragment,fragment);
            fragmentTransaction.commit();
        }
    };
}

```

# 九.intent

## 1.intent概述

![image-20240120034943930](README/image-20240120034943930.png)

![image-20240120035048646](README/image-20240120035048646.png)

![image-20240120035203558](README/image-20240120035203558.png)

![image-20240120035345732](README/image-20240120035345732.png)

## 2.intent基本应用

### 1.开启activity

![image-20240120035614327](README/image-20240120035614327.png)

### 2.开启service

![image-20240120035641653](README/image-20240120035641653.png)

### 3.传递广播

![image-20240120035655497](README/image-20240120035655497.png)

## 3.intent对象的属性

![image-20240120035747150](README/image-20240120035747150.png)

### 1.component

------

![image-20240120035851714](README/image-20240120035851714.png)

![image-20240120040204149](README/image-20240120040204149.png)

------

![image-20240120040848109](README/image-20240120040848109.png)

### 2.action

---

![image-20240120041000964](README/image-20240120041000964.png)

```xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:orientation="vertical"
    tools:context="com.doudou.unit2.MainActivity">

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="call"
        android:text="打电话" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="sendMessage"
        android:text="发短信" />

</LinearLayout>

```

```java
package com.doudou.unit2;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void call(View v){
        Intent intent = new Intent();
        intent.setAction(intent.ACTION_DIAL);
        intent.setData(Uri.parse("tel:177117717"));
        startActivity(intent);
    }

    public void sendMessage(View v){
        Intent intent = new Intent();
        intent.setAction(intent.ACTION_SENDTO);
        intent.setData(Uri.parse("smsto:177117717"));
        intent.putExtra("sms_body","hello!");
        startActivity(intent);
    }

}

```

![image-20240120043534488](README/image-20240120043534488.png)

### 3.category

![image-20240120183708744](README/image-20240120183708744.png)

### 4.Extras

![image-20240120191657059](README/image-20240120191657059.png)

### 5.Flags

## 4.intent种类

### 1.显示intent

![image-20240120192242176](README/image-20240120192242176.png)

### 

![image-20240120192339954](README/image-20240120192339954.png)

### 2.隐式intent

![image-20240120192411329](README/image-20240120192411329.png)

![image-20240120192608057](README/image-20240120192608057.png)

![image-20240120192710080](README/image-20240120192710080.png)

## 5.intent过滤器

![image-20240120192804335](README/image-20240120192804335.png)

![image-20240120192833155](README/image-20240120192833155.png)

**![image-20240120192904598](README/image-20240120192904598.png)**

![image-20240120193017862](README/image-20240120193017862.png)

![image-20240120193055435](README/image-20240120193055435.png)

![image-20240120193449080](README/image-20240120193449080.png)

![image-20240120193632322](README/image-20240120193632322.png)

# 10.程序调试

# 11.事件处理和手势

![image-20240120193757436](README/image-20240120193757436.png)

![image-20240120193843763](README/image-20240120193843763.png)

## 1.事件处理概述



### 1.基于监听的事件处理

![image-20240120194429950](README/image-20240120194429950.png)

![image-20240120194601548](README/image-20240120194601548.png)

![image-20240120194648612](README/image-20240120194648612.png)

### 2.基于回调的事件处理

![image-20240120194735562](README/image-20240120194735562.png)

![image-20240120194743036](README/image-20240120194743036.png)

![image-20240120194939069](README/image-20240120194939069.png)

![image-20240120195052159](README/image-20240120195052159.png)

## 2.物理按键事件处理

![image-20240120195122815](README/image-20240120195122815.png)

![image-20240120195231509](README/image-20240120195231509.png)

![image-20240120195305412](README/image-20240120195305412.png)

![image-20240120195311837](README/image-20240120195311837.png)

![image-20240120195327000](README/image-20240120195327000.png)

![image-20240120195348440](README/image-20240120195348440.png)

![image-20240120195646546](README/image-20240120195646546.png)

![image-20240120195808495](README/image-20240120195808495.png)

## 3.触摸屏事件处理

#### 1.单击事件

![image-20240120200028588](README/image-20240120200028588.png)

![image-20240120200058989](README/image-20240120200058989.png)

#### 2.长按事件

![image-20240120200136207](README/image-20240120200136207.png)

![image-20240120200142120](README/image-20240120200142120.png)

![image-20240120200215860](README/image-20240120200215860.png)

![image-20240120200743647](README/image-20240120200743647.png)

![image-20240120200643173](README/image-20240120200643173.png)

![image-20240120200658254](README/image-20240120200658254.png)

#### 3.触摸事件

![image-20240120200911777](README/image-20240120200911777.png)

![image-20240120200936406](README/image-20240120200936406.png)

# 12.资源处理

![image-20240120202520801](README/image-20240120202520801.png)

![image-20240120202559582](README/image-20240120202559582.png)

## 1.字符串资源

![image-20240120202652611](README/image-20240120202652611.png)

![image-20240120202843375](README/image-20240120202843375.png)

![image-20240120202943524](README/image-20240120202943524.png)

![image-20240120203203695](README/image-20240120203203695.png)

![image-20240120203245879](README/image-20240120203245879.png)

![image-20240120203313166](README/image-20240120203313166.png)

![image-20240120203319440](README/image-20240120203319440.png)

![image-20240120203842408](README/image-20240120203842408.png)

![image-20240120203934076](README/image-20240120203934076.png)



## 2.颜色资源

![image-20240120204042385](README/image-20240120204042385.png)

![image-20240120204141509](README/image-20240120204141509.png)

![image-20240120204230614](README/image-20240120204230614.png)

![image-20240120204258798](README/image-20240120204258798.png)

![image-20240120204344557](README/image-20240120204344557.png)

![image-20240120204521156](README/image-20240120204521156.png)

![image-20240120204559722](README/image-20240120204559722.png)



## 3.尺寸资源

![image-20240120204934498](README/image-20240120204934498.png)

![image-20240120204948318](README/image-20240120204948318.png)



![image-20240120205010074](README/image-20240120205010074.png)

![image-20240120205026765](README/image-20240120205026765.png)

![image-20240120205044572](README/image-20240120205044572.png)

![image-20240120205111217](README/image-20240120205111217.png)

![image-20240120205201428](README/image-20240120205201428.png)

![image-20240120205349677](README/image-20240120205349677.png)

![image-20240120205455619](README/image-20240120205455619.png)



## 4.布局资源

![image-20240120205610013](README/image-20240120205610013.png)

![image-20240120205739023](README/image-20240120205739023.png)



## 5.数组资源

![image-20240120205951760](README/image-20240120205951760.png)

![image-20240120210048772](README/image-20240120210048772.png)

![image-20240120210119764](README/image-20240120210119764.png)

![image-20240120210127058](README/image-20240120210127058.png)

![image-20240120210222710](README/image-20240120210222710.png)

```xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
    <integer-array name="bgColor">
        <item>0xBBE24A83</item>
        <item>0xBB318AD6</item>
        <item>0xBBD73943</item>
        <item>0xBBE69A08</item>
        <item>0xBBBD9663</item>
        <item>0xBBD45ABC</item>
        <item>0xBB4AA6D6</item>
        <item>0xBB8064D2</item>
        <item>0xBBF7A81E</item>
    </integer-array>
    <string-array name="word">
        <item>微信</item>
        <item>通讯录</item>
        <item>QQ</item>
        <item>相机</item>
        <item>时钟</item>
        <item>备忘录</item>
        <item>音乐</item>
        <item>互联网</item>
        <item>邮件</item>
    </string-array>
</resources>
```

```xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/bg"
    android:orientation="vertical"
    android:padding="40dp"

    tools:context="com.doudou.unit2.MainActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="horizontal">

        <TextView
            android:id="@+id/textView1"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:text="文字"
            android:textColor="#ffffff"
            android:textSize="18sp" />

        <TextView
            android:id="@+id/textView2"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:text="文字"
            android:textColor="#ffffff"
            android:textSize="18sp" />

        <TextView
            android:id="@+id/textView3"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:text="文字"
            android:textColor="#ffffff"
            android:textSize="18sp" />
    </LinearLayout>

    <LinearLayout

        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="horizontal">

        <TextView
            android:id="@+id/textView4"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:text="文字"
            android:textColor="#ffffff"
            android:textSize="18sp" />

        <TextView
            android:id="@+id/textView5"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:text="文字"
            android:textColor="#ffffff"
            android:textSize="18sp" />

        <TextView
            android:id="@+id/textView6"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:text="文字"
            android:textColor="#ffffff"
            android:textSize="18sp" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="horizontal">

        <TextView
            android:id="@+id/textView7"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:text="文字"
            android:textColor="#ffffff"
            android:textSize="18sp" />

        <TextView
            android:id="@+id/textView8"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:text="文字"
            android:textColor="#ffffff"
            android:textSize="18sp" />

        <TextView
            android:id="@+id/textView9"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:text="文字"
            android:textColor="#ffffff"
            android:textSize="18sp" />
    </LinearLayout>
</LinearLayout>

```

```java
package com.doudou.unit2;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
    int[] tvid = {
            R.id.textView1, R.id.textView2, R.id.textView3, R.id.textView4, R.id.textView5, R.id.textView6,
            R.id.textView7, R.id.textView8, R.id.textView9,
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        int[] color = getResources().getIntArray(R.array.bgColor);
        String[] word = getResources().getStringArray(R.array.word);
        for (int i=0; i < 9; i++) {
            TextView tv = (TextView) findViewById(tvid[i]);
            tv.setBackgroundColor(color[i]);
            tv.setText(word[i]);
        }
    }


}

```



## 6.图像资源

### 1.drawable资源

![image-20240120213045191](README/image-20240120213045191.png)

![image-20240120213058445](README/image-20240120213058445.png)

![image-20240120213122431](README/image-20240120213122431.png)

![image-20240120213157955](README/image-20240120213157955.png)

![image-20240120213231659](README/image-20240120213231659.png)

![image-20240120213256310](README/image-20240120213256310.png)

![image-20240120213621344](README/image-20240120213621344.png)

![image-20240120213959427](README/image-20240120213959427.png)

![image-20240120214027206](README/image-20240120214027206.png)

![image-20240120214241888](README/image-20240120214241888.png)

![image-20240120214313674](README/image-20240120214313674.png)

![image-20240120214331919](README/image-20240120214331919.png)

![image-20240120214409116](README/image-20240120214409116.png)

![image-20240120214416824](README/image-20240120214416824.png)

![image-20240120214621436](README/image-20240120214621436.png)

![image-20240120214655975](README/image-20240120214655975.png)

![image-20240120214828335](README/image-20240120214828335.png)

![image-20240120214901522](README/image-20240120214901522.png)

![image-20240120214913919](README/image-20240120214913919.png)

### 2.mipmap资源

![image-20240120215138912](README/image-20240120215138912.png)

![image-20240120215201601](README/image-20240120215201601.png)

![image-20240120215233279](README/image-20240120215233279.png)



## 7.主体和样式资源

### 1.主题资源

![image-20240120215349827](README/image-20240120215349827.png)

![image-20240120215636343](README/image-20240120215636343.png)

![image-20240120215833604](README/image-20240120215833604.png)

#### 1.xml方式

![image-20240120220005546](README/image-20240120220005546.png)

![image-20240120220030560](README/image-20240120220030560.png)

#### 2.java代码方式

![image-20240120220110543](README/image-20240120220110543.png)

![image-20240120220122101](README/image-20240120220122101.png)

### 2.样式资源

![image-20240120220254950](README/image-20240120220254950.png)

![image-20240120220333446](README/image-20240120220333446.png)

![image-20240120220435102](README/image-20240120220435102.png)

![image-20240120220529691](README/image-20240120220529691.png)

![image-20240120220538232](README/image-20240120220538232.png)

![image-20240120220718239](README/image-20240120220718239.png)

![image-20240120220741197](README/image-20240120220741197.png)

![image-20240120220754319](README/image-20240120220754319.png)



## 8.菜单资源

![image-20240120220950996](README/image-20240120220950996.png)

![image-20240120221251885](README/image-20240120221251885.png)

![image-20240120221220309](README/image-20240120221220309.png)

![image-20240120221413339](README/image-20240120221413339.png)

![image-20240120221419928](README/image-20240120221419928.png)

### 1.创建一个菜单

![image-20240120221919742](README/image-20240120221919742.png)

### 2.添加一个菜单

![image-20240120224631307](README/image-20240120224631307.png)

### 3.创建上下文菜单

![image-20240120224719136](README/image-20240120224719136.png)

![image-20240120224735665](README/image-20240120224735665.png)

![image-20240120224752915](README/image-20240120224752915.png)

![image-20240120224800007](README/image-20240120224800007.png)

![image-20240121001321923](README/image-20240121001321923.png)

![image-20240121001334205](README/image-20240121001334205.png)

```java
package com.doudou.unit2;

import android.app.Activity;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {
    TextView textView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //为文本框注册上下文菜单
        textView = (TextView) findViewById(R.id.text1);
        registerForContextMenu(textView);
    }

    // 重写onCreateContextMenu方法
    @Override
    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
        MenuInflater menuInflater = new MenuInflater(this);
        menuInflater.inflate(R.menu.menu, menu);
    }

    //重写onContextItemSelected方法
    @Override
    public boolean onContextItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.copy:
                Toast.makeText(MainActivity.this, "已经复制", Toast.LENGTH_SHORT).show();
                break;
            case R.id.collect:
                Toast.makeText(MainActivity.this, "已经收藏", Toast.LENGTH_SHORT).show();
                break;
        }
        return true;
    }
}

```



## 9.国际化

# 13.Action Bar

![image-20240121001727789](README/image-20240121001727789.png)

![image-20240121001755130](README/image-20240121001755130.png)

![image-20240121001828864](README/image-20240121001828864.png)

![image-20240121001911833](README/image-20240121001911833.png)

![image-20240121001950875](README/image-20240121001950875.png)



## 1.显示和隐藏actionBar

### 1.静态设置

![image-20240121002341907](README/image-20240121002341907.png)

### 2.java代码动态设置

![image-20240121002509762](README/image-20240121002509762.png)

![image-20240121002546405](README/image-20240121002546405.png)

![image-20240121002705705](README/image-20240121002705705.png)

## 2.添加actionItem

![image-20240121002941897](README/image-20240121002941897.png)

![image-20240121002957099](README/image-20240121002957099.png)

![image-20240121003022811](README/image-20240121003022811.png)

![image-20240121003029955](README/image-20240121003029955.png)

![image-20240121004621939](README/image-20240121004621939.png)

![image-20240121004643707](README/image-20240121004643707.png)

![image-20240121004713641](README/image-20240121004713641.png)

## 3.添加action View

![image-20240121004935447](README/image-20240121004935447.png)

# 14.使用Notification显示通知

![image-20240121011513368](README/image-20240121011513368.png)

```java
package com.doudou.unit2;

import android.annotation.TargetApi;
import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;

public class MainActivity extends Activity {
    final int NOTIFYID=0x123;

    @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // 创建并发送通知
        NotificationManager systemService = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        Notification.Builder builder = new Notification.Builder(MainActivity.this);//创建一个通知对象
        builder.setAutoCancel(true);//设置通知打开后自动消失
        builder.setSmallIcon(R.mipmap.ic_launcher);//设置通知图标
        builder.setContentTitle("通知啊我是!");//通知内容标题
        builder.setContentText("点击查看详情");//通知内容
        builder.setWhen(System.currentTimeMillis()+2000*10);//发送时间
        builder.setDefaults(Notification.DEFAULT_SOUND|Notification.DEFAULT_VIBRATE);//声音和震动
        //创建一个启动详情页面的intent
        Intent intent = new Intent(MainActivity.this, DetailActivity.class);
        PendingIntent pi = PendingIntent.getActivity(MainActivity.this, 0, intent, 0);
        builder.setContentIntent(pi);//设置通知栏点击跳转
        systemService.notify(NOTIFYID,builder.build());//发送
    }
}

```

# 15.ORM框架GreenDao

# 16.图像切换器

![image-20240122235027481](README/image-20240122235027481.png)

# 17.Service

![image-20240123230835893](README/image-20240123230835893.png)

`Service分两种启动方式`

*1）***StartService()启动Service**
*2）***BindService()启动Service**
*PS:还有一种，就是启动Service后，绑定Service！*

## 1.创建基础的service

通过编辑器的向导创建

![image-20240124001606929](README/image-20240124001606929.png)

![image-20240124020922576](README/image-20240124020922576.png)

![image-20240124021014011](README/image-20240124021014011.png)

![image-20240124021032723](README/image-20240124021032723.png)

## 2.intent service

![image-20240124133203485](README/image-20240124133203485.png)

# 18.进程保活与拉活

![image-20240125100730166](README/image-20240125100730166.png)

```shell
cat /sys/module/lowmemorykiller/parameters/minfree

cat /proc/10818/oom_adj

```

![image-20240125100817212](README/image-20240125100817212.png)

![image-20240125104852022](README/image-20240125104852022.png)

![image-20240125104902309](README/image-20240125104902309.png)

![image-20240125110611763](README/image-20240125110611763.png)

![image-20240125111242763](README/image-20240125111242763.png)

![image-20240125111526527](README/image-20240125111526527.png)

![image-20240125112026175](README/image-20240125112026175.png)

![image-20240125112406701](README/image-20240125112406701.png)

![image-20240125112438870](README/image-20240125112438870.png)

![image-20240125112833436](README/image-20240125112833436.png)