flutter 处理Android蓝牙权限

官方文档地址 permission_handler

在AndroidManifest.xml 添加权限,用到哪个就添加哪个

  <!--
    Internet permissions do not affect the `permission_handler` plugin, but are required if your app needs access to
    the internet.
    -->
    <uses-permission android:name="android.permission.INTERNET"/>

    <!-- Permissions options for the `contacts` group -->
    <uses-permission android:name="android.permission.READ_CONTACTS"/>
    <uses-permission android:name="android.permission.WRITE_CONTACTS"/>
    <uses-permission android:name="android.permission.GET_ACCOUNTS"/>

    <!-- Permissions options for the `storage` group -->
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

    <!-- Permissions options for the `camera` group -->
    <uses-permission android:name="android.permission.CAMERA"/>

    <!-- Permissions options for the `sms` group -->
    <uses-permission android:name="android.permission.SEND_SMS"/>
    <uses-permission android:name="android.permission.RECEIVE_SMS"/>
    <uses-permission android:name="android.permission.READ_SMS"/>
    <uses-permission android:name="android.permission.RECEIVE_WAP_PUSH"/>
    <uses-permission android:name="android.permission.RECEIVE_MMS"/>

    <!-- Permissions options for the `phone` group -->
    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
    <uses-permission android:name="android.permission.CALL_PHONE"/>
    <uses-permission android:name="android.permission.ADD_VOICEMAIL"/>
    <uses-permission android:name="android.permission.USE_SIP"/>
    <uses-permission android:name="android.permission.READ_CALL_LOG"/>
    <uses-permission android:name="android.permission.WRITE_CALL_LOG"/>
    <uses-permission android:name="android.permission.BIND_CALL_REDIRECTION_SERVICE"/>

    <!-- Permissions options for the `calendar` group -->
    <uses-permission android:name="android.permission.READ_CALENDAR" />
    <uses-permission android:name="android.permission.WRITE_CALENDAR" />

    <!-- Permissions options for the `location` group -->
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />

    <!-- Permissions options for the `microphone` or `speech` group -->
    <uses-permission android:name="android.permission.RECORD_AUDIO" />

    <!-- Permissions options for the `sensors` group -->
    <uses-permission android:name="android.permission.BODY_SENSORS" />

    <!-- Permissions options for the `accessMediaLocation` group -->
    <uses-permission android:name="android.permission.ACCESS_MEDIA_LOCATION" />

    <!-- Permissions options for the `activityRecognition` group -->
    <uses-permission android:name="android.permission.ACTIVITY_RECOGNITION" />

    <!-- Permissions options for the `ignoreBatteryOptimizations` group -->
    <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />

    <!-- Permissions options for the `bluetooth` group -->
    <uses-permission android:name="android.permission.BLUETOOTH" />  
    <uses-permission android:name="android.permission.BLUETOOTH_SCAN" />
    <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />

    <!-- Permissions options for the `manage external storage` group -->
    <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />

    <!-- Permissions options for the `system alert windows` group -->
    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />

    <!-- Permissions options for the `request install packages` group -->
    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />

    <!-- Permissions options for the `access notification policy` group -->
    <uses-permission android:name="android.permission.ACCESS_NOTIFICATION_POLICY"/>

本次就添加蓝牙的部分所以使用如下权限

    <uses-permission android:name="android.permission.BLUETOOTH"/>
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
    <uses-permission android:name="android.permission.BLUETOOTH_SCAN" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADVERTISE" />
    <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />

动态申请权限最终代码

  // 权限申请
  Future<bool> requestBlePermissions() async {
    var isLocationGranted = await Permission.locationWhenInUse.request();
    print('checkBlePermissions, isLocationGranted=$isLocationGranted');

    var isBleGranted = await Permission.bluetooth.request();
    print('checkBlePermissions, isBleGranted=$isBleGranted');

    var isBleScanGranted = await Permission.bluetoothScan.request();
    print('checkBlePermissions, isBleScanGranted=$isBleScanGranted');
    //
    var isBleConnectGranted = await Permission.bluetoothConnect.request();
    print('checkBlePermissions, isBleConnectGranted=$isBleConnectGranted');
    //
    var isBleAdvertiseGranted = await Permission.bluetoothAdvertise.request();
    print('checkBlePermissions, isBleAdvertiseGranted=$isBleAdvertiseGranted');

    if (Platform.isIOS) {
      return isBleGranted == PermissionStatus.granted;
    } else {
      return isLocationGranted == PermissionStatus.granted &&
          // isBleGranted == PermissionStatus.granted  &&
          isBleScanGranted == PermissionStatus.granted &&
          isBleConnectGranted == PermissionStatus.granted &&
          isBleAdvertiseGranted == PermissionStatus.granted;
    }
  }

以上代码转自flutter 完美处理iOS Android两端蓝牙权限，解决Android12蓝牙扫描崩溃 – 简书 (jianshu.com)略有修改。