Java tutorial
//package com.java2s; import android.content.Context; import android.util.DisplayMetrics; public class Main { public static float getWidthDpi(Context context) { DisplayMetrics dm = null; try { if (context != null) { dm = new DisplayMetrics(); dm = context.getApplicationContext().getResources().getDisplayMetrics(); } return dm.densityDpi; } catch (Exception e) { e.printStackTrace(); } return 0; } }