一、概念
二、使用 Accompanist Permissions
不同版本中,权限状态(如PermissionState)中获取属性的方法不同,例如在"0.23.1"中,通过 PermissionState.hasPermission 属性拿到是否通过的 Boolean 值,在"0.35.0-alpha"中,通过 PermissionState.status.isGranted 属性拿到。
|------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|      | 单个权限                                                                                                                                                                                                                          | 多个权限                                                                                                                                                                                                                                               |
| 添加权限 | @Composable fun rememberPermissionState( permission: String ): PermissionState                                                                                                                                                | @Composable fun rememberMultiplePermissionsState( permissions: List<String> ): MultiplePermissionsState                                                                                                                                          |
| 发起请求 | fun launchPermissionRequest(): Unit                                                                                                                                                                                           | fun launchMultiplePermissionRequest(): Unit                                                                                                                                                                                                        |
| 权限回调 | @Composable fun PermissionRequired( permissionState: PermissionState, permissionNotGrantedContent: @Composable (() -> Unit), permissionNotAvailableContent: @Composable (() -> Unit), content: @Composable (() -> Unit), ) | @Composable fun PermissionsRequired( multiplePermissionsState: MultiplePermissionsState, permissionsNotGrantedContent: @Composable (() -> Unit), permissionsNotAvailableContent: @Composable (() -> Unit), content: @Composable (() -> Unit), ) |
2.1 添加依赖
            
            
              Groovy
              
              
            
          
          implementation "com.google.accompanist:accompanist-permissions:0.35.1-alpha"2.2 单个权限申请
            
            
              Kotlin
              
              
            
          
          val permissionState = rememberPermissionState(
    Manifest.permission.CAMERA
)
PermissionRequired(
    permissionState = permissionState,
    permissionNotGrantedContent = {    //还未申请或点击了拒绝
        Button(onClick = { permissionState.launchPermissionRequest() }) {
            Text("点击申请")
        }
    },
    permissionNotAvailableContent = {    //点击了不再询问
        Text("无权限")
    }
) {    //点击了通过
    Text("已授予")
}2.3 多个权限申请
            
            
              Kotlin
              
              
            
          
          val permissionState = rememberMultiplePermissionsState(
    listOf(
        Manifest.permission.CAMERA,
        Manifest.permission.READ_EXTERNAL_STORAGE,
        Manifest.permission.WRITE_EXTERNAL_STORAGE,
        Manifest.permission.RECORD_AUDIO
    )
)
LaunchedEffect(Unit) {
    permissionState.launchMultiplePermissionRequest()
}