Here you can find the source of getScreenWidth(Context context)
public static int getScreenWidth(Context context)
//package com.java2s; import android.content.Context; import android.util.DisplayMetrics; import android.view.WindowManager; public class Main { public static int getScreenWidth(Context context) { WindowManager wm = (WindowManager) context .getSystemService(Context.WINDOW_SERVICE); DisplayMetrics outMetrics = new DisplayMetrics(); wm.getDefaultDisplay().getMetrics(outMetrics); return outMetrics.widthPixels; }//w w w.j a va 2 s . c om }