Full screen android app without statusbar and system navigationbar - android

I want to enable and to disable statusbar and navigation bar in my android app. For this i use next methods:
private void hideSystemUi() {
decorView.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);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
}
private void showSystemUi() {
decorView.setSystemUiVisibility(
View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
}
where
decorView = getWindow().getDecorView();
It works okay: these methods show and hide statusbar with navigationbar, BUT there is the problem: when statusbar is hide, i can to show it with top-bottom swipe in top part of my screen; similar situation with navigationbar. So , how to resolve this? I want to disable these system view fully, without possibility to show them with swipe. Thanks.

Related

How to show ActionBar when exit full screen by swipe down?

mContext.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
I am using the above codes to hide enter the full screen mode. It can be exited by swiping back, top or bottom. However, the Action Bar remains hidden, while the status bar and navigation bar appears (Picture 2).
How can I bring up the ActionBar ? Or detecting the "Exit" (Picture 3) event listener so that I can call the following to show ActionBar?
mContext.getWindow().getDecorView().setSystemUiVisibility(
View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
);
Due to design requirement, I can't use the touch listener to bring up the ActionBar() in this case.

Status and navigation bar showing when scrolling Recycler view in immersive mode

I'm implementing immersive mode using this code:
activity.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
);
But the problem is as I scroll the recycler view, the status and navigation bar are shown as an item view reaches the top. It's hard to explain but here's the gif:
https://giphy.com/gifs/xT4uQiBlagrD9ljQqc
Note that as an item view approaches the top, the status bar is shown (only the dark background is shown though). Note also the navigation bar as an item view's bottom reaches the boundary of the navigation bar (notice the gray background at the bottom).
This happens for every item in the recycler view which is really annoying.

It's missing you some UI options like immersive sticky.
Here's my working ui options:
View decorView = getWindow().getDecorView();
int uiOptions = 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;
decorView.setSystemUiVisibility(uiOptions);

Detach a view from layout and make it full-screen?

I am trying to expand a VideoView to full screen and horizontal mode whenever a 'full-screen' button is clicked, but I cannot find a way to expand the view completely over the whole screen. I have a toolbar and a tabbed layout I can't find a way to bypass both of them and apply the view over them. Anybody has ideas how I can achieve this?

Without code I am not sure of your layout but, translate your TabLayout out of the way and go to 'immersive' mode to hide all system bars. You can use the following method:
private void hideSystemUI() {
// Set the content to appear under the system bars so that the content
// doesn't resize when the system bars hide and show.
getWindow().getDecorView().setFitsSystemWindows(false);
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 // hide nav bar
| View.SYSTEM_UI_FLAG_FULLSCREEN // hide status bar
| View.SYSTEM_UI_FLAG_IMMERSIVE);
}
To come out of immersive mode, just use the following method:
private void showSystemUI() {
getWindow().getDecorView().setFitsSystemWindows(true);
getWindow().getDecorView().setSystemUiVisibility(
View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
}

Permanently hide bottom bar

I am working on custom screen lock app where we need to full screen view hiding the top and bottom bars completely. The app is for Android phones only and not tablets. I achieved this partially by using Immersive mode but the issue is the bottom bar & top appears for few seconds on touching bottom or top of the screen.
Below is the code in my activity to do this :
final int flags = 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;
getWindow().getDecorView().setSystemUiVisibility(flags);
I have tried various options but unable to hide the bars permanently. Please advise.

When Using Immersive Mode a line appears

I'm trying to use the immersive mode introduced in Android 4.4. I use this code to set the visibility and it works exactly how I want it to:
View decorView = getWindow().getDecorView();
int uiOptions = //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 // hide nav bar
| View.SYSTEM_UI_FLAG_FULLSCREEN // hide status bar
| View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
decorView.setSystemUiVisibility(uiOptions);
However, it puts a line on the display. I have a screenshot but cannot post it because this is my first question. I have no idea what it is or how to get rid of it. Can anyone help?

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