我如何使一个活动全屏?没有通知栏。
当前回答
截至2022年
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
window.decorView.windowInsetsController?.hide(WindowInsets.Type.systemBars())
} else {
@Suppress("DEPRECATION") // Older API support
window.decorView.systemUiVisibility = (View.SYSTEM_UI_FLAG_IMMERSIVE
or View.SYSTEM_UI_FLAG_LAYOUT_STABLE
or View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
or View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
or View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
or View.SYSTEM_UI_FLAG_FULLSCREEN)
}
其他回答
根据安卓开发者培训
你应该做到以下几点:
科特林:
private fun hideSystemBars() {
val windowInsetsController =
ViewCompat.getWindowInsetsController(window.decorView) ?: return
// Configure the behavior of the hidden system bars
windowInsetsController.systemBarsBehavior =
WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
// Hide both the status bar and the navigation bar
windowInsetsController.hide(WindowInsetsCompat.Type.systemBars())
}
Java:
private void hideSystemBars() {
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());
}
小心
requestWindowFeature(Window.FEATURE_NO_TITLE);
如果您正在使用任何方法设置操作栏如下:
getSupportActionBar().setHomeButtonEnabled(true);
它将导致一个空指针异常。
奇巧有一种叫做沉浸式全屏模式的技术。
例子
提示:使用getWindow().setLayout()会搞砸你的全屏显示!注意,这个方法的文档说:
设置窗口的宽度和高度布局参数… 你可以把它们改成……用于制作非全屏窗口的绝对值。
http://developer.android.com/reference/android/view/Window.html#setLayout%28int,%20int%29
For my purposes, I found that I had to use setLayout with absolute parameters to resize my full screen window correctly. Most of the time, this worked fine. It was called by an onConfigurationChanged() event. There was a hiccup, however. If the user exited the app, changed the orientation, and reentered, it would lead to firing off my code which included setLayout(). During this re-entry time window, my status bar (which was hidden by the manifest) would be made to re-appear, but at any other time setLayout() would not cause this! The solution was to add an additional setLayout() call after the one with the hard values like so:
public static void setSize( final int width, final int height ){
//DO SOME OTHER STUFF...
instance_.getWindow().setLayout( width, height );
// Prevent status bar re-appearance
Handler delay = new Handler();
delay.postDelayed( new Runnable(){ public void run() {
instance_.getWindow().setLayout(
WindowManager.LayoutParams.FILL_PARENT,
WindowManager.LayoutParams.FILL_PARENT );
}}, FILL_PARENT_ON_RESIZE_DELAY_MILLIS );
}
然后,窗口正确地调整大小,状态栏不会重新出现,不管触发这一事件。
getWindow () .setFlags (WindowManager.LayoutParams。FLAG_LAYOUT_NO_LIMITS WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);if (getSupportActionBar() != null){getSupportActionBar().hide();}
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