Here you can find the source of convertPixelsToSp(Context context, float pxValue)
public static int convertPixelsToSp(Context context, float pxValue)
//package com.java2s; import android.content.Context; import android.content.res.Resources; import android.util.DisplayMetrics; public class Main { public static int convertPixelsToSp(Context context, float pxValue) { Resources resources = context.getResources(); DisplayMetrics metrics = resources.getDisplayMetrics(); return (int) (pxValue / metrics.scaledDensity + 0.5f); }//from w w w . ja v a 2 s. co m }