Check programitically device wheather it is phone or tablet in android

public  boolean isTabletDevice(FragmentActivity activityContext) {
        // Verifies if the Generalized Size of the device is XLARGE to be
        // considered a Tablet
        boolean large = ((activityContext.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_LARGE);
        boolean xlarge= ((activityContext.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) == Configuration.SCREENLAYOUT_SIZE_XLARGE);
        // If XLarge, checks if the Generalized Density is at least MDPI
        // (160dpi)
        if (large) {
            DisplayMetrics metrics = new DisplayMetrics();
            Activity activity = (Activity) activityContext;
            activity.getWindowManager().getDefaultDisplay().getMetrics(metrics);

            // MDPI=160, DEFAULT=160, DENSITY_HIGH=240, DENSITY_MEDIUM=160,
            // DENSITY_TV=213, DENSITY_XHIGH=320
            if (metrics.densityDpi == DisplayMetrics.DENSITY_DEFAULT
                    || metrics.densityDpi == DisplayMetrics.DENSITY_HIGH
                    || metrics.densityDpi == DisplayMetrics.DENSITY_MEDIUM
                    || metrics.densityDpi == DisplayMetrics.DENSITY_TV
                    || metrics.densityDpi == DisplayMetrics.DENSITY_XHIGH) {
                System.out.println("7 Inch Tab");
                // Yes, this is a tablet!
                return true;
            }
        }
        else if (xlarge) {
               DisplayMetrics metrics = new DisplayMetrics();
                Activity activity = (Activity) activityContext;
                activity.getWindowManager().getDefaultDisplay().getMetrics(metrics);
            if (metrics.densityDpi == DisplayMetrics.DENSITY_DEFAULT
                    || metrics.densityDpi == DisplayMetrics.DENSITY_HIGH
                    || metrics.densityDpi == DisplayMetrics.DENSITY_MEDIUM
                    || metrics.densityDpi == DisplayMetrics.DENSITY_TV
                    || metrics.densityDpi == DisplayMetrics.DENSITY_XHIGH) {
                System.out.println("10 Inch Tab");
                // Yes, this is a tablet!
                return true;
            }
        }

        // No, this is not a tablet!
        return false;
    }