Convert DpToPx and PxToDp

//http://stackoverflow.com/questions/4605527/converting-pixels-to-dp
//The above method results accurate method compared to below methods
//http://stackoverflow.com/questions/8309354/formula-px-to-dp-dp-to-px-android
//http://stackoverflow.com/questions/13751080/converting-pixels-to-dpi-for-mdpi-and-hdpi-screens


public static float convertPixelsToDp(float px){
	DisplayMetrics metrics = Resources.getSystem().getDisplayMetrics();
	float dp = px / (metrics.densityDpi / 160f);
	return Math.round(dp);
}
	
public static float convertDpToPixel(float dp){
	DisplayMetrics metrics = Resources.getSystem().getDisplayMetrics();
	float px = dp * (metrics.densityDpi / 160f);
	return Math.round(px);
}

private int convertDpToPx(int dp){
    return Math.round(dp*(getResources().getDisplayMetrics().xdpi/DisplayMetrics.DENSITY_DEFAULT));
		
}
	
private int convertPxToDp(int px){
    return Math.round(px/(Resources.getSystem().getDisplayMetrics().xdpi/DisplayMetrics.DENSITY_DEFAULT));
}

private float dpFromPx(float px)
{
    return px / this.getContext().getResources().getDisplayMetrics().density;
}

private float pxFromDp(float dp)
{
    return dp * this.getContext().getResources().getDisplayMetrics().density;
}