Android 11 上的沉浸式全屏

Question

之前，要启用沉浸式全屏模式，您必须使用setSystemUiVisibility，如下所示：

getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE
            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
            | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
            | View.SYSTEM_UI_FLAG_FULLSCREEN
            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);

从 API 30 开始，它已被弃用，那么解决方法是什么？

Answer 1

为了兼容性，请使用WindowCompat和WindowInsetsControllerCompat。您androidx.core至少需要将您的 gradle 依赖项升级到 ，1.6.0-alpha03以便setSystemBarsBehavior对 SDK < 30 的支持。mainContainer是ConstraintLayout我活动中的顶级。

private fun hideSystemUI() {
    WindowCompat.setDecorFitsSystemWindows(window, false)
    WindowInsetsControllerCompat(window, mainContainer).let { controller ->
        controller.hide(WindowInsetsCompat.Type.systemBars())
        controller.systemBarsBehavior = WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
    }
}

private fun showSystemUI() {
    WindowCompat.setDecorFitsSystemWindows(window, true)
    WindowInsetsControllerCompat(window, mainContainer).show(WindowInsetsCompat.Type.systemBars())
}

您可以WindowInsets通过观看此YouTube 视频了解更多信息

编辑：

我之前没有在这个答案中考虑过显示屏切口或显示屏内摄像头。在应用程序主题样式中，我添加了以下内容以在切口上方显示我的内容（在纵向模式下显示在屏幕顶部）：

<item name="android:windowLayoutInDisplayCutoutMode">shortEdges</item>

您可以在此链接中阅读更多信息：Display Cutout

Answer 2

正如文档所建议的那样，您应该使用WindowInsetsController.

getWindow().setDecorFitsSystemWindows(false);
WindowInsetsController controller = getWindow().getInsetsController();
if (controller != null) {
    controller.hide(WindowInsets.Type.statusBars() | WindowInsets.Type.navigationBars());
    controller.setSystemBarsBehavior(WindowInsetsController.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE);
}

Answer 3

对于弃用，您可以尝试以下代码。为我工作。

  if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
        final WindowInsetsController controller = getWindow().getInsetsController();

        if (controller != null)
            controller.hide(WindowInsets.Type.statusBars());
    }
    else {
        //noinspection deprecation
                getWindow().getDecorView().setSystemUiVisibility(
            View.SYSTEM_UI_FLAG_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                    | View.SYSTEM_UI_FLAG_IMMERSIVE
                    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                    | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
    }

Answer 4

对于全屏

隐藏状态栏

private void hideSystemBars() {
    WindowCompat.setDecorFitsSystemWindows(getWindow(), false);
    WindowInsetsControllerCompat windowInsetsController = ViewCompat.getWindowInsetsController(getWindow().getDecorView());
    if (windowInsetsController == null) {
        return;
    }
    // Configure the behavior of the hidden system bars
    windowInsetsController.setSystemBarsBehavior(WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE);
    // Hide both the status bar and the navigation bar
    windowInsetsController.hide(WindowInsetsCompat.Type.systemBars());
}

显示状态栏

private void showSystemBars() {
    WindowCompat.setDecorFitsSystemWindows(getWindow(), false);
    WindowInsetsControllerCompat windowInsetsController = ViewCompat.getWindowInsetsController(getWindow().getDecorView());
    if (windowInsetsController == null) {
        return;
    }
    // Configure the behavior of the hidden system bars
    windowInsetsController.setSystemBarsBehavior(WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE);
    // Hide both the status bar and the navigation bar
    windowInsetsController.show(WindowInsetsCompat.Type.systemBars());
}

用于全屏模式下的顶部相机切割

<item name="android:windowLayoutInDisplayCutoutMode" tools:ignore="NewApi">shortEdges</item>

Answer 5

这对我有用，混合了两个答案：

首先创建方法：

private void setFullScreen(){
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
        getWindow().setDecorFitsSystemWindows(false);
        WindowInsetsController controller = getWindow().getInsetsController();
        if(controller != null) {
            controller.hide(WindowInsets.Type.statusBars() | WindowInsets.Type.navigationBars());
            controller.setSystemBarsBehavior(WindowInsetsController.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE);
        }
    }
    else {
        //noinspection deprecation
        getWindow().getDecorView().setSystemUiVisibility(
                View.SYSTEM_UI_FLAG_FULLSCREEN
                        | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                        | View.SYSTEM_UI_FLAG_IMMERSIVE
                        | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                        | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                        | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
    }
}

然后在创建时只需在 setContentView 之后调用它，如下所示：

  @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_menu);
        setFullScreen();
    }

它就像一个魅力:D