如何为菜单项设置自定义字体？

Question

我的应用程序支持少量语言，即使该设备未提供语言支持。为此，我正在下载TTF文件并动态设置TTF文件到所有视图。除了选项菜单以外，它在任代码添加在下面。

@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    menu.clear();
    Typeface typeface = Utils.getTypefaceForAppLanguage(getContext());
    String title = Utils.getLanguageValue(getString(R.string.action_apply));
    inflater.inflate(R.menu.menu_apply, menu);
    menu.findItem(R.id.action_apply).setTitle(typeface != null ? CommonUtils.getStringWithTypeface(typeface, title) : title);
    super.onCreateOptionsMenu(menu, inflater);
}



 public static SpannableString getStringWithTypeface(Typeface typeface, String str) {
    SpannableString spannableString = new SpannableString(str);
    if (!TextUtils.isEmpty(str)) {
        spannableString.setSpan(new CustomTypefaceSpan("", typeface), 0, spannableString.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    }
    return spannableString;
}




public class CustomTypefaceSpan extends TypefaceSpan{

private Typeface newType;

public CustomTypefaceSpan(String family) {
    super(family);
}

public CustomTypefaceSpan(Parcel src) {
    super(src);
}

public CustomTypefaceSpan(String family, Typeface type) {
    super(family);
    newType = type;
}

@Override
public void updateDrawState(TextPaint ds) {
    applyCustomTypeFace(ds, newType);
}

@Override
public void updateMeasureState(TextPaint paint) {
    applyCustomTypeFace(paint, newType);
}

private static void applyCustomTypeFace(Paint paint, Typeface tf) {
    int oldStyle;
    Typeface old = paint.getTypeface();
    if (old == null) {
        oldStyle = 0;
    } else {
        oldStyle = old.getStyle();
    }

    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);
}
}