# printer-controller-spike

**Repository Path**: damoncheny/printer-controller-spike

## Basic Information

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

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2024-05-20
- **Last Updated**: 2024-05-20

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# Harmony Spike

## Web-view
### uages
1. use Web component for html display
2. use web-view controller for webview communicate
3. use postMessage for html to App communicate
### issue

## mDNS
### usage
1. search printer in local lan
### issues
1. mdns can't get Printer ip
2. mdns serviceFound Data structure is incorrect as the definition file
3. mdns service attribute is empty

## RCP Request
### usage

### issue
{"code":1007900004,"data":"A requested feature, protocol or option was not found built-in in this libcurl due to a build-time decision."}


## Print
### usage
1. need privacy : ohos.permission.PRINT

### issue
1. can't get file uri

## Scan
1. has no scan capability

## Wifi Setup

### BLE 
1. 需要在代码包中申明权限 
```
// BLE介绍 https://developer.huawei.com/consumer/cn/doc/harmonyos-references/js-apis-bluetooth-ble-0000001813576576#ZH-CN_TOPIC_0000001813576576__writecharacteristicvalue
// 权限列表介绍 https://developer.huawei.com/consumer/cn/doc/harmonyos-guides/permissions-for-all-0000001820999669
// 使用流程介绍 https://developer.huawei.com/consumer/cn/doc/harmonyos-guides/request-user-authorization-0000001774279718
{
        "name": "ohos.permission.ACCESS_BLUETOOTH",
        "reason": "$string:ble_reason",
        "usedScene": {
          "abilities": [
            "EntryAbility"
          ],
          "when":"inuse"
        }
      },
```
2. 使用前检查是否有使用权限
3. 若无权限则提示用户并跳转设置页面
4. 获取权限后继续使用