自定义TypefaceSpan

Android

经过测试，在TypefaceSpan里面设置bold的字体和用StyleSpan加上的bold效果应该是不同的，所以对于有的Typeface.create()无法创建的字体来说，就得想个别的办法

import android.content.res.Resources;
import android.graphics.Typeface;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.content.res.ResourcesCompat;
import android.text.TextPaint;
import android.text.style.TypefaceSpan;
import com.xxx.xxx.R;
public class CustomTypefaceSpan extends TypefaceSpan {
    public CustomTypefaceSpan(@Nullable String family) {
        super(family);
    }
    @Override
    public void updateDrawState(@NonNull TextPaint paint) {
        int oldStyle;
        Typeface old = paint.getTypeface();
        if (old == null) {
            oldStyle = 0;
        } else {
            oldStyle = old.getStyle();
        }
        Typeface tf = Typeface.create(getFamily(), oldStyle);
        int resId = getResByName();
        if (-1 != resId) {
            try {
                tf = ResourcesCompat.getFont(getContext(), resId);
            } catch (Resources.NotFoundException e) {
                e.printStackTrace();
            }
        }
        if (null == tf) {
            tf = Typeface.create(getFamily(), oldStyle);
        }
        int fake = oldStyle & ~tf.getStyle();
        if ((fake & Typeface.BOLD) != 0) {
            paint.setFakeBoldText(true);
        }
        if ((fake & Typeface.ITALIC) != 0) {
            paint.setTextSkewX(-0.25f);
        }
        paint.setTypeface(tf);
    }
    private int getResByName() {
        String name = getFamily();
        if (null == name) {
            return -1;
        }
        switch (name) {
            case "gilroy_bold":
                return R.font.gilroy_bold;
            case "gilroy_semibold":
                return R.font.gilroy_semibold;
            case "gilroy_extrabold":
                return R.font.gilroy_extrabold;
            case "gilroy_medium":
                return R.font.gilroy_medium;
            default:
                return -1;
        }
    }
}