Here you can find the source of getDisplayMetrics(Context context)
public static String getDisplayMetrics(Context context)
//package com.java2s; import android.content.Context; import android.util.DisplayMetrics; import android.view.WindowManager; public class Main { public static String getDisplayMetrics(Context context) { WindowManager windowManager = (WindowManager) context .getSystemService(Context.WINDOW_SERVICE); DisplayMetrics metrics = new DisplayMetrics(); windowManager.getDefaultDisplay().getMetrics(metrics); return String.format("%dx%d", metrics.widthPixels, metrics.heightPixels);//from w w w .j av a2 s. com } }