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 dm = new DisplayMetrics(); wm.getDefaultDisplay().getMetrics(dm); return dm.widthPixels; }/* w w w . j a v a2s . c om*/ }