我正在尝试实现全屏模式,但对于Android 4.4及以上版本,它会显示一个空白的区域:
在 immersive mode(fullscreen) 之前:
在
如您所见,它并没有去掉它。这是我用来切换它的代码:
在 immersive mode(fullscreen) 之前:
![enter image description here](https://istack.dev59.com/xk4Qz.webp)
toggleFullScreen(false);
之后:
![enter image description here](https://istack.dev59.com/mIlmW.webp)
public void toggleFullscreen(boolean fs) {
if (Build.VERSION.SDK_INT >= 11) {
// The UI options currently enabled are represented by a bitfield.
// getSystemUiVisibility() gives us that bitfield.
int uiOptions = this.getWindow().getDecorView().getSystemUiVisibility();
int newUiOptions = uiOptions;
boolean isImmersiveModeEnabled =
((uiOptions | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY) == uiOptions);
if (isImmersiveModeEnabled) {
Log.i(getPackageName(), "Turning immersive mode mode off. ");
} else {
Log.i(getPackageName(), "Turning immersive mode mode on.");
}
// Navigation bar hiding: Backwards compatible to ICS.
if (Build.VERSION.SDK_INT >= 14) {
newUiOptions ^= View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
}
// Status bar hiding: Backwards compatible to Jellybean
if (Build.VERSION.SDK_INT >= 16) {
newUiOptions ^= View.SYSTEM_UI_FLAG_FULLSCREEN;
}
// Immersive mode: Backward compatible to KitKat.
// Note that this flag doesn't do anything by itself, it only augments the behavior
// of HIDE_NAVIGATION and FLAG_FULLSCREEN. For the purposes of this sample
// all three flags are being toggled together.
// Note that there are two immersive mode UI flags, one of which is referred to as "sticky".
// Sticky immersive mode differs in that it makes the navigation and status bars
// semi-transparent, and the UI flag does not get cleared when the user interacts with
// the screen.
if (Build.VERSION.SDK_INT >= 18) {
newUiOptions ^= View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
}
getWindow().getDecorView().setSystemUiVisibility(newUiOptions);
} else {
// for android pre 11
WindowManager.LayoutParams attrs = getWindow().getAttributes();
if (fs) {
attrs.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
} else {
attrs.flags &= ~WindowManager.LayoutParams.FLAG_FULLSCREEN;
}
this.getWindow().setAttributes(attrs);
}
try {
// hide actionbar
if
(this instanceof AppCompatActivity) {
if (fs) getSupportActionBar().hide();
else getSupportActionBar().show();
} else if
(Build.VERSION.SDK_INT >= 11) {
if (fs) getActionBar().hide();
else getActionBar().show();
}
} catch (Exception e) {
e.printStackTrace();
}
}