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androidstatusbarandroid-4.2-jelly-beanandroid-launcher

Overlay Status bar on android 4.2.2+

I want to overlay android status bar. In my case it is on top. I do not want to overlay or hide navigation bar.

Note: Solution must work on android 4.2.2+. I prefer answers for non-rooted device.

I have searched many SO questions and answers, but none works on 4.2.2.

Below is my code, but it does not consume touch events. That's why status bar opens its panel. And I do not want this.

@Override 
public void onCreate() {
    super.onCreate();

    windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);

    int statusBarHeight = (int) Math.ceil(25 * getResources().getDisplayMetrics().density);

    overlay = new Button(this);
    overlay.setBackgroundColor(Color.GREEN);
    overlay.setOnTouchListener(new OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            Log.i("StatusBar", "touched");
            return false;
        }
    });

    WindowManager.LayoutParams params = new WindowManager.LayoutParams(
            WindowManager.LayoutParams.FILL_PARENT,
            statusBarHeight,
            WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY,
            WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE|
            WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL|
            WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH|
            WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN,
            PixelFormat.TRANSLUCENT);

    params.gravity = Gravity.TOP | Gravity.RIGHT;

    windowManager.addView(overlay, params);

}

@Override
public void onDestroy() {
    super.onDestroy();
    if (overlay != null) windowManager.removeView(overlay);
}

In main activity I start service:

startService(new Intent(this, StatusBarService.class));

And permission is added in AndroidManifest.xml:

<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>

And now proof it can be done and it works on 4.2.2: Play Google - MobiLock

How?

Screenshots: enter image description here enter image description here

Solution

  • After try&repeat, this did it for me:

    int statusBarHeight = (int) Math.ceil(25 * getResources().getDisplayMetrics().density);

WindowManager.LayoutParams params = new WindowManager.LayoutParams(WindowManager.LayoutParams.FILL_PARENT,
            statusBarHeight,
            WindowManager.LayoutParams.TYPE_SYSTEM_ERROR,
            WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE|
            WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL|
            WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN,
            PixelFormat.TRANSLUCENT);

    It works on 4.2.2 and 4.4.2