content: package com.at.facebooktypeimagegrid.Assymetric;
  
  import android.content.Context;
  import android.util.DisplayMetrics;
  import android.view.WindowManager;
  
  public final class Utils {
    public static int dpToPx(final Context context, final float dp) {
      // Took from http://stackoverflow.com/questions/8309354/formula-px-to-dp-dp-to-px-android
      final float scale = context.getResources().getDisplayMetrics().density;
      return (int) ((dp * scale) + 0.5f);
    }
  
    static int getScreenWidth(final Context context) {
      if (context == null) {
        return 0;
      }
      return getDisplayMetrics(context).widthPixels;
    }
  
    /**
     * Returns a valid DisplayMetrics object
     *
     * @param context valid context
     * @return DisplayMetrics object
     */
    static DisplayMetrics getDisplayMetrics(final Context context) {
      final WindowManager
          windowManager =
          (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
      final DisplayMetrics metrics = new DisplayMetrics();
      windowManager.getDefaultDisplay().getMetrics(metrics);
      return metrics;
    }
  }
  