单个TextView中的多个TypeFace

Question

我想在TextView上设置第一个字符TypeFace，第二个字符设置不同的字体，依此类推。
我读了这个例子：

Spannable str = (Spannable) textView.getText();
str.setSpan(new StyleSpan(android.graphics.Typeface.ITALIC), 0, 7  
                             ,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

但它没有帮助我，因为我想设置多个TypeFace (external TTFs)
有什么想法??

Answer 1

使用以下代码:(我使用的是Bangla和Tamil字体）

  TextView txt = (TextView) findViewById(R.id.custom_fonts);  
        txt.setTextSize(30);
        Typeface font = Typeface.createFromAsset(getAssets(), "Akshar.ttf");
        Typeface font2 = Typeface.createFromAsset(getAssets(), "bangla.ttf");   
        SpannableStringBuilder SS = new SpannableStringBuilder("আমারநல்வரவு");
        SS.setSpan (new CustomTypefaceSpan("", font2), 0, 4,Spanned.SPAN_EXCLUSIVE_INCLUSIVE);
        SS.setSpan (new CustomTypefaceSpan("", font), 4, 11,Spanned.SPAN_EXCLUSIVE_INCLUSIVE);
        txt.setText(SS);

---

结果是：

---

这使用CustomTypefaceSpan类，取自How can I use TypefaceSpan or StyleSpan with a custom Typeface?：

---

package my.app;
import android.graphics.Paint;
import android.graphics.Typeface;
import android.text.TextPaint;
import android.text.style.TypefaceSpan;

public class CustomTypefaceSpan extends TypefaceSpan {

private final Typeface newType;

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);
}
}

---

Answer 2

Kotlin开发人员可以使用它为单个按钮或textview使用两个或更多字体。

1。复制并粘贴此类：

global queryset = Systemevents.objects.filter(**filter)

class HomePageView(TemplateView):
   def get_queryset():
      return queryset

class SearchPageView(ListView):
   def get_queryset():
      return queryset

class LogDetailView(DetailView):
   def get_queryset():
      return queryset

2。通过以下方式使用它：

class CustomTypefaceSpan(family: String?, private val newType: Typeface) : TypefaceSpan(family) {

    override fun updateDrawState(ds: TextPaint) {
        applyCustomTypeFace(ds, newType)
    }

    override fun updateMeasureState(paint: TextPaint) {
        applyCustomTypeFace(paint, newType)
    }

    companion object {
        private fun applyCustomTypeFace(paint: Paint, tf: Typeface) {
            val oldStyle: Int
            val old = paint.typeface
            oldStyle = old?.style ?: 0
            val fake = oldStyle and tf.style.inv()
            if (fake and Typeface.BOLD != 0) {
                paint.isFakeBoldText = true
            }
            if (fake and Typeface.ITALIC != 0) {
                paint.textSkewX = -0.25f
            }
            paint.typeface = tf
        }
    }
}

3。最终的输出将是这样