Reliably get height of status bar to solve KitKat translucent navigation issue

Question

I am experimenting with the new Android 4.4 translucent navigation bars and would like to set the navigation bar as translucent using the FLAG_TRANSLUCENT_NAVIGATION

Answer 1

Since api 21 there is official method for retrieving insets for status bar and navigation bar height when is translucent

ViewCompat.setOnApplyWindowInsetsListener(view, new OnApplyWindowInsetsListener() {
        @Override
        public WindowInsetsCompat onApplyWindowInsets(View v, WindowInsetsCompat insets) {
            final int statusBar = insets.getSystemWindowInsetTop();
            final int navigationBar = insets.getSystemWindowInsetBottom();
            return insets;
        }
    });

Answer 2

The accepted answer always returns the status bar height (and in a somewhat hacky way). But some activities may actually be fullscreen, and this method doesn't differentiate between them.

This method works perfectly for me to find the status bar height relative to the current activity (place it in your Activity class, and use it once layout has finished):

public int getStatusBarHeight() {
    Rect displayRect = new Rect();
    getWindow().getDecorView().getWindowVisibleDisplayFrame(displayRect);
    return displayRect.top;
}

Note you could also just use displayRect directly in case you have other "window decorations" at the bottom or potentially even the sides of the screen.

Answer 3

public int getStatusBarHeight() {
      int result = 0;
      int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android");
      if (resourceId > 0) {
          result = getResources().getDimensionPixelSize(resourceId);
      }
      return result;
}

Use the above code in the onCreate method. Put it in a contextWrapper class. http://mrtn.me/blog/2012/03/17/get-the-height-of-the-status-bar-in-android/

Answer 4

recommend to use this script to get the status bar height

Rect rectangle = new Rect();
Window window = getWindow();
window.getDecorView().getWindowVisibleDisplayFrame(rectangle);
int statusBarHeight = rectangle.top;
int contentViewTop = 
    window.findViewById(Window.ID_ANDROID_CONTENT).getTop();
int titleBarHeight= contentViewTop - statusBarHeight;

   Log.i("*** Elenasys :: ", "StatusBar Height= " + statusBarHeight + " , TitleBar Height = " + titleBarHeight); 

(old Method) to get the Height of the status bar on the onCreate() method of your Activity, use this method:

public int getStatusBarHeight() { 
      int result = 0;
      int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android");
      if (resourceId > 0) {
          result = getResources().getDimensionPixelSize(resourceId);
      } 
      return result;
}