Android How to - Converts device specific pixels to device independent pixels

Question

We would like to know how to converts device specific pixels to device independent pixels.

Answer

This method converts device specific pixels to device independent pixels

It devides the density by 160.

/* w  w w.  jav a2s.  c o  m*/
import android.content.Context;
import android.content.res.Resources;
import android.util.DisplayMetrics;

public class Main {

  /**
   * This method converts device specific pixels to device independent pixels.
   * 
   * @param px A value in px (pixels) unit. Which we need to convert into db
   * @param context Context to get resources and device specific display metrics
   * @return A float value to represent db equivalent to px value
   */
  public static float convertPixelsToDp(float px,Context context){
      Resources resources = context.getResources();
      DisplayMetrics metrics = resources.getDisplayMetrics();
      float dp = px / (metrics.densityDpi / 160f);
      return dp;

  }
}