Size of android notification bar and title bar?

Maybe this is a helpful approach: Referring to the Icon Design Guidelines there are only three different heights for the status (notification) bar depending on the screen density:

• 24px for LDPI
• 32px for MDPI
• 48px for HDPI

So if you retrieve the screen density of the device using densityDpi of DisplayMetrics you know which value to subtract

so it could look something like that:

    DisplayMetrics metrics = new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(metrics);
    int myHeight = 0;

    switch (metrics.densityDpi) {
        case DisplayMetrics.DENSITY_HIGH:
            Log.i("display", "high");
            myHeight = display.getHeight() - 48;
            break;
        case DisplayMetrics.DENSITY_MEDIUM:
            Log.i("display", "medium/default");
            myHeight = display.getHeight() - 32;
            break;
        case DisplayMetrics.DENSITY_LOW:
            Log.i("display", "low");
            myHeight = display.getHeight() - 24;
            break;
        default:
            Log.i("display", "Unknown density");