Check if Android device has software or hardware navigation buttons

Question

I\'m writing an Android app with a transparent navigation bar. To adjust the layout accordingly, I need to know whether the device has software or hardware buttons.

Answer 1

The answer posted here did the trick. Just for completeness, here is the code I am using now:

private static boolean hasImmersive;
private static boolean cached = false;

@SuppressLint ("NewApi")
public static boolean hasImmersive(Context ctx) {

    if (!cached) {
        if(Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
            hasImmersive = false;
            cached = true;
            return false;
        }
        Display d = ((WindowManager) ctx.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();

        DisplayMetrics realDisplayMetrics = new DisplayMetrics();
        d.getRealMetrics(realDisplayMetrics);

        int realHeight = realDisplayMetrics.heightPixels;
        int realWidth = realDisplayMetrics.widthPixels;

        DisplayMetrics displayMetrics = new DisplayMetrics();
        d.getMetrics(displayMetrics);

        int displayHeight = displayMetrics.heightPixels;
        int displayWidth = displayMetrics.widthPixels;

        hasImmersive = (realWidth > displayWidth) || (realHeight > displayHeight);
        cached = true;
    }

    return hasImmersive;
}

Answer 2

See this answer. You can get the real height of the display in pixels, and then get the height available to your app, and figure out if the device has an on-screen navigation bar with these values.