Disable Home button in Android 4.0+

Question

I'm trying to replace the stock lock screen with my own app.
In my code, i want to disable the Home button.
I know how to do this in Android 2.3 and below,
but the same code doesn't work with Android 4.0+ (return to desktop when Home button pressed)

Recently I found out an app called MiHome which has its own lock screen and is able to disable the Home button.
Does anyone know how it achieves this???

Raghunandan · Answer 1 · 2013-03-17T11:24:55.390

15

There is no way to intercept the home button on Android, unless you make your app the home screen. This is for security reasons, so that malicious apps cannot take over your device by overriding all the buttons that can exit. The home button is the one sure shot way to be able to leave any app.

If you want to handle the HOME button, implement a home screen.

edited Mar 17 '13 at 11:24

answered Mar 17 '13 at 10:50

Raghunandan

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score 3 · Answer 2 · edited May 23 '17 at 12:33

3

Mucking with the home button is disabled for security/reliability reasons in ICS. (Most apps use it for evil than good)

Please refer to the following questions for workarounds.

Seems like the only way is to implement a home screen

edited May 23 '17 at 12:33

Community

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answered Mar 17 '13 at 10:10

Madushan

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this approach does not work on Android 4.0.3 comment by commonsware for the second link. – Raghunandan Mar 17 '13 at 11:27
Sorry bout that. Seems like this is not possible on ICS without implementing a fake home screen. I updated the answer. – Madushan Mar 17 '13 at 19:40

score 0 · Answer 3 · answered Jan 27 '16 at 07:10

Try this

   params = new WindowManager.LayoutParams(
                    WindowManager.LayoutParams.MATCH_PARENT,
                    WindowManager.LayoutParams.MATCH_PARENT,
                    WindowManager.LayoutParams.TYPE_SYSTEM_ERROR, WindowManager.LayoutParams.FLAG_FULLSCREEN | WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD |WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED,
                    PixelFormat.TRANSLUCENT);
            params.gravity = Gravity.TOP;

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            } else {
                getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            }
    mOverlay = (RelativeLayout) inflater
                    .inflate(R.layout.main, (ViewGroup) null);

    mOverlay.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
                            | View.SYSTEM_UI_FLAG_FULLSCREEN
                            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
            mWindowManager = (WindowManager) context
                    .getSystemService(Context.WINDOW_SERVICE);
            mWindowManager.addView(mOverlay, params);

Disable Home button in Android 4.0+

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