FontCache for getting typeface from assets. Loading typeface every time is little expensive.

FontCache.java

import android.content.Context;
import android.graphics.Typeface;

import java.util.HashMap;
import java.util.Map;

/**
 * Created by abhinav.sharma on 28/12/16.
 * Creating Typeface from assets is little expensive when lot of textviews wants custom Fonts from assets
 * https://nayaneshguptetechstuff.wordpress.com/2014/06/20/slow-activity-transition-using-custom-typeface-font/
 */
 
public class FontCache {
    private static Map<String, Typeface> fontCache = new HashMap<>();

    public static synchronized Typeface getTypeface(String fontname, Context context) {
        Typeface typeface = fontCache.get(fontname);

        if (typeface == null) {
            try {
                typeface = Typeface.createFromAsset(context.getAssets(), String.format("fonts/%s", fontname));
            } catch (Exception e) {
                e.printStackTrace();
                return null;
            }

            fontCache.put(fontname, typeface);
        }

        return typeface;
    }
}