Compose 封装 - 禁止截屏

一、封装成Modifier

/**
 * 当前界面不允许截屏，退出该界面后恢复
 */
@Composable
fun Modifier.secureScreen(enable: Boolean = true): Modifier = composed {
    val context = LocalContext.current
    DisposableEffect(Unit) {
        if (enable) {
            (context as? Activity)?.window?.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
        } else {
            (context as? Activity)?.window?.clearFlags(WindowManager.LayoutParams.FLAG_SECURE)
        }
        onDispose {
            (context as? Activity)?.window?.clearFlags(WindowManager.LayoutParams.FLAG_SECURE)
        }
    }
    this
}

二、封装成可组合项

/**
 * 当前界面不允许截屏，退出该界面后恢复
 */
@Composable
fun SecureScreen(enable: Boolean = true) {
    val context = LocalContext.current
    DisposableEffect(Unit) {
        if (enable) {
            (context as? Activity)?.window?.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
        } else {
            (context as? Activity)?.window?.clearFlags(WindowManager.LayoutParams.FLAG_SECURE)
        }
        onDispose {
            (context as? Activity)?.window?.clearFlags(WindowManager.LayoutParams.FLAG_SECURE)
        }
    }
}