I have to find the length of the string which can be display in single line according to device screen width in Xamarin forms(Android) app

Question

There should only be one line of text displayed and multiple lines should be restricted. In cases where the string is long and going on the 2nd line, I need to trim it according to a particular logic.

I am working on android app using xamarin forms.

I know how to find the width of the device, but I can't figure out how to count the characters that will display on a single line.