Java tutorial
//package com.java2s; import android.app.Activity; import android.content.Context; import android.util.DisplayMetrics; public class Main { private static int getDensityOfDevice(Context densityOfDeviceContext) { DisplayMetrics metrics = new DisplayMetrics(); ((Activity) densityOfDeviceContext).getWindowManager().getDefaultDisplay().getMetrics(metrics); return metrics.densityDpi; } }