Question

使用以下代码覆盖应用程序中的字体，但ActionBar和按钮会忽略它。其余的（TextViews和EditTexts工作正常）。我正在使用AppCompat库。提前感谢您的帮助。

  @Override
public void onCreate() {

    super.onCreate();
    final Typeface regular = Typeface.createFromAsset(getAssets(),"fonts/avenir.ttc");
    replaceFont(Typeface.defaultFromStyle(R.style.AppTheme).toString(), regular);
    replaceFont("DEFAULT", regular);
}
protected static void replaceFont(String staticTypefaceFieldName,
                                  final Typeface newTypeface) {
    if (Build.VERSION.SDK_INT >= 21) {
        Map<String, Typeface> newMap = new HashMap<String, Typeface>();
        newMap.put("sans-serif", newTypeface);

        try {
            final Field staticField = Typeface.class
                    .getDeclaredField("sSystemFontMap");
            staticField.setAccessible(true);
            staticField.set(null, newMap);



            Field sDefaults = Typeface.class.getDeclaredField("sDefaults");
            sDefaults.setAccessible(true);
            sDefaults.set(null, new Typeface[]{
                    newTypeface, newTypeface, newTypeface, newTypeface
            });

        } catch (NoSuchFieldException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        }
    } else {
        try {
            final Field staticField = Typeface.class
                    .getDeclaredField(staticTypefaceFieldName);
            staticField.setAccessible(true);
            staticField.set(null, newTypeface);
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        }
    }
}

Answer 1

尝试使用这个类我在堆栈溢出中发现了这个。

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 Spannable}.
     */
    public TypefaceSpan(Context context, String typefaceName) {
        mTypeface = sTypefaceCache.get(typefaceName);

        if (mTypeface == null) {
            mTypeface = Typeface.createFromAsset(context.getApplicationContext()
                    .getAssets(), 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);

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

使用此

SpannableString s = new SpannableString("My Title");
s.setSpan(new TypefaceSpan(this, "MyTypeface.otf"), 0, s.length(),
        Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

// Update the action bar title with the TypefaceSpan instance
ActionBar actionBar = getActionBar();
actionBar.setTitle(s);

我不确定它是否适用于按钮尝试：）

按钮和ActionBar忽略了Application中定义的自定义字体

1 个答案: