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Compose - 权限申请

news 2025/7/9 19:19:27

官方介绍

一、概念

二、使用 Accompanist Permissions

官方介绍

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

implementation "com.google.accompanist:accompanist-permissions:0.35.1-alpha"

2.2 单个权限申请

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

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()
}