Android 屏幕分辨率获取

 /**
     * app内可用的分辨率
     * @param ctx
     * @return
     */
    public static int getScreenH(Context ctx) {
        WeakReference<Context> weakReference = new WeakReference<>(ctx);
        DisplayMetrics displayMetrics = null;
        displayMetrics = weakReference.get().getResources().getDisplayMetrics();
        return displayMetrics.heightPixels;
    }

    /**
     * 真实的硬件分辨率
     * @param context
     * @return
     */
    public static int getRawScreenH(Context context) {
        int width = 0, height = 0;
        final DisplayMetrics metrics = new DisplayMetrics();
        Display display = ((WindowManager)context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();

        // For JellyBean 4.2 (API 17) and onward
        display.getRealMetrics(metrics);

        width = metrics.widthPixels;
        height = metrics.heightPixels;
        return height;
    }