How to block navigation bar/status bar android java

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How to block the navigation bar in android from my app. My app must haven't take the chance go to the settings and other components.

This code on Kotlin

I block the action bar by: window.addFlags(WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY) window.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN)

In the photo it is the red zone, I can to override back-button and home-button (I make my app as a launcher for android) and I have did this.

But the main problem - is the button of multitasking - green zone.

The overriding method onUserLeaveHint not solve my problem.

How to remove this button or hide the navigation bar?

I have used below code for hiding the navigation bar & status bar in activity.

 public void onWindowFocusChanged(boolean hasFocus) 
   View view = getWindow().getDecorView();
   if (hasFocus) {  
 view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOU _STABLE


In one of My Custom camera app i have used this which shows the full screen camera view witout notification bar & status bar and when you drag from top or bottom then it will show you. Happy Coding... :)

Hide the status bar, I have used below code for hiding the navigation bar & status bar in activity. @​Override public void onWindowFocusChanged(boolean  I'm developing an Android app. Where I want to disable the status bar, I mean when the app is opened. Then user can't access the status bar from that app. Is it possible? Thanks.

Please refer this example. in which shown how to disable :

[Click here][below]

Its tricky part pelase have h deep dive into this.or please check other lock screen example or locker apps. in which screen lock screen has this code.

Galaxy S8: How do I disable the navigation buttons when playing , Hiding the status bar (and optionally, the navigation bar) lets the content use more of or by setting an activity theme in your app's manifest file. In this tutorial we learned how to hide the device system bars, the Status Bar and the Navigation Bar, We created a really simple test application, and you saw how easy it is to hide both of them.

protected void onPause() {
    if(SettingsProvider.loadPreventOverviewButtonMode(this)) {
        ActivityManager activityManager = (ActivityManager) getApplicationContext()

        activityManager.moveTaskToFront(getTaskId(), 0);

How to block navigation bar/status bar android java, System bars, including the [1] status bar, and [2] navigation bar. the system bar icons for a less distracting experience, or temporarily hide the  used for kolin in android for hide status bar in kolin no need to used semicolon(;) at the end of the line . window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN) in android using java language for hid status bar. getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

Control the system UI visibility, Subscribe to my channel for more great content :). In this tutorial we learned how to hide the Duration: 6:22 Posted: Nov 23, 2018 Broken Navigation Bar, Lock Screen, or Status Bar after an Update? Here’s a Fix. There is a rare bug which has happened to a handful of users after an OTA update.

Hide The Status Bar And Navigation Bar, This video shows how to remove the Title Bar and the Navigation Bar of an App Duration: 4:53 Posted: Feb 1, 2018 You can hide the status bar on Android 4.0 (API level 14) and lower by setting WindowManager flags. You can do this programmatically or by setting an activity theme in your app's manifest file. Setting an activity theme in your app's manifest file is the preferred approach if the status bar should always remain hidden in your app (though strictly speaking, you could programmatically override the theme if you wanted to).

How to Remove Title Bar and Navigation Bar Programmatically in , Removing paddings and margins won't get you very far because the Android OS, by default, displays a navigation bar at the bottom, and a status  Hi, I am developing an app that will run in a tablet. I need to block the status bar to not show notification and configurations (for example not turn off wifi). I dont want to use a third party app like Surelock. I only need to block the expand of the status bar. I am developing in Xamarin.Android. Thanks!