Java tutorial
//package com.java2s; import android.content.Context; import android.content.res.Resources; import android.util.DisplayMetrics; public class Main { public static float convertDpToPixel(float dp, Context context) { Resources resources = context.getResources(); DisplayMetrics metrics = resources.getDisplayMetrics(); return dp * ((float) metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT); } }