Convert dip to px in Android

Question

I had written method to get the pixels from dip but it is not working. It give me runtime error.

Actually I was running this method in separate class and initialized

Answer 1

You can add the dp value in dimen.xml and use

int pixels = getResources().getDimensionPixelSize(R.dimen.idDimension);

It's easier...

Answer 2

Try this : For without passing context

 public static float dipToPixels(float dipValue) {
        return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dipValue, Resources.getSystem().getDisplayMetrics());
    }

Answer 3

The formula is: px = dp * (dpi / 160), for having on a 160 dpi screen. See http://developer.android.com/guide/practices/screens_support.html for more information.

You could try:

public static int convertDipToPixels(float dips)
{
    return (int) (dips * appContext.getResources().getDisplayMetrics().density + 0.5f);
}

Hope this helps...

Answer 4

Try this:

Java

public static float dipToPixels(Context context, float dipValue) {
    DisplayMetrics metrics = context.getResources().getDisplayMetrics();
    return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dipValue, metrics);
}

Kotlin

fun Context.dipToPixels(dipValue: Float) =
    TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dipValue, resources.displayMetrics)