Android display metrics

DisplayKt.kt

/**
 * This method converts dp unit to equivalent pixels, depending on device density. 
 * 
 * @param dp A value in dp (density independent pixels) unit. Which we need to convert into pixels
 * @param context Context to get resources and device specific display metrics
 * @return A float value to represent px equivalent to dp depending on device density
 */

inline fun Context.dpToPixel(dp:Float) : Float {
  return dp * (resource.displayMertics.densityDpi / DisplayMetrics.DENSITY_DEFAULT).toFloat();
}

/**
 * This method converts device specific pixels to density 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 dp equivalent to px value
 */

inline fun Context.pixelToDp(px:Float) : Float {
  return px / (resource.displayMertics.densityDpi / DisplayMetrics.DENSITY_DEFAULT).toFloat();
}