Java tutorial
//package com.java2s; import android.content.Context; import android.util.DisplayMetrics; import android.view.ContextThemeWrapper; import android.view.WindowManager; public class Main { public static float getDensity(Context context) { DisplayMetrics metrics = new DisplayMetrics(); WindowManager wm = ((WindowManager) context.getSystemService(Context.WINDOW_SERVICE)); wm.getDefaultDisplay().getMetrics(metrics); return metrics.density; } public static float getDensity(ContextThemeWrapper context) { return context.getResources().getDisplayMetrics().density; } }