Java tutorial
//package com.java2s; import android.content.Context; import android.content.res.Resources; import android.util.TypedValue; public class Main { public static float convertDpToFloatPixel(Context context, float dp) { Resources r = context.getResources(); return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, r.getDisplayMetrics()); } }