Question

我正在尝试在我的应用程序中使用Custom Typeface Span，但它不起作用。这是我的代码

Typeface font3 = Typeface.createFromAsset(context.getAssets(), "fontawesome-webfont.ttf"); 
SpannableStringBuilder SS = new SpannableStringBuilder("&#xf17b;");
SS.setSpan(new CustomTypefaceSpan("", font3), 0, 8,Spanned.SPAN_EXCLUSIVE_INCLUSIVE);
textView.setText(SS);

这里我尝试在自定义字体跨度中使用Font-Awesome。

Answer 1

您可以创建一个Custom TypefaceSpan，然后可以在任何地方使用它来在任何地方应用字体样式。如下所述创建一个类TypefaceSpan。

   public class TypefaceSpan extends MetricAffectingSpan {
/** An <code>LruCache</code> for previously loaded typefaces. */
private static LruCache<String, Typeface> sTypefaceCache =
        new LruCache<String, Typeface>(12);

private Typeface mTypeface;

/**
 * Load the {@link Typeface} and apply to a {@link android.text.Spannable}.
 */
public TypefaceSpan(Context context, String typefaceName) {
    mTypeface = sTypefaceCache.get(typefaceName);

    if (mTypeface == null) {
        mTypeface = Typeface.createFromAsset(context.getApplicationContext()
                .getAssets(), typefaceName);//String.format("fonts/%s", typefaceName));

        // Cache the loaded Typeface
        sTypefaceCache.put(typefaceName, mTypeface);
    }
}

@Override
public void updateMeasureState(TextPaint p) {
    p.setTypeface(mTypeface);

    // Note: This flag is required for proper typeface rendering
    p.setFlags(p.getFlags() | Paint.SUBPIXEL_TEXT_FLAG);
}

@Override
public void updateDrawState(TextPaint tp) {
    tp.setTypeface(mTypeface);

    tp.setFlags(tp.getFlags() | Paint.SUBPIXEL_TEXT_FLAG);
}

，然后您可以使用此类来应用字体样式。示例-

actionBar=getSupportActionBar();
    SpannableString s = new SpannableString("Hostel-16");
    s.setSpan(new com.example.suraj.hostel16.TypefaceSpan(getApplicationContext(),"georgia.ttf"), 0, s.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    actionBar.setTitle(s);

自定义字体跨度不起作用

1 个答案: