Java tutorial
//package com.java2s; import android.content.Context; public class Main { public static int getscreenWidthDp(Context context) { int widthPx = context.getResources().getDisplayMetrics().widthPixels; return px2dip(context, widthPx);//widthPx/oneDpToPx; } public static int px2dip(Context context, float pxValue) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (pxValue / scale + 0.5f); } }