Android UI中TextView的使用方法

String msg = getResources().getString(R.string.school_roll_auth); 
    SpannableStringBuilder style = new SpannableStringBuilder(msg); 
    // 设置字体颜色 
    style.setSpan( 
        new ForegroundColorSpan(getResources().getColor( 
            R.color.tv_color_99)), 0, msg.length() - 5, 
        Spannable.SPAN_EXCLUSIVE_INCLUSIVE); 
    style.setSpan( 
        new ForegroundColorSpan(getResources().getColor( 
            R.color.text_blue)), msg.length() - 5, msg.length(), 
        Spannable.SPAN_EXCLUSIVE_INCLUSIVE); 
    // 设置字体背景色 
    style.setSpan( 
        new BackgroundColorSpan(getResources().getColor( 
            R.color.bg_common)), msg.length() - 5, msg.length(), 
        Spannable.SPAN_EXCLUSIVE_INCLUSIVE); 
    // 设置可点击部分 
    style.setSpan(new ClickableSpan() { 
 
      @Override 
      public void onClick(View widget) { 
        //do Click .... 
      } 
 
      @Override 
      public void updateDrawState(TextPaint ds) { 
        super.updateDrawState(ds); 
        ds.setUnderlineText(false); 
        ds.clearShadowLayer(); 
      } 
 
    }, msg.length() - 5, msg.length(), Spannable.SPAN_EXCLUSIVE_INCLUSIVE); 
    tv_school_roll_msg.setText(style); 
    // 此方法在需要响应用户事件时使用，如点击一个电话号码就跳转到拨号页面。如果不执行这个方法是不会响应事件的，即便文本看着已经是下划线蓝色字了。 
    tv_school_roll_msg.setMovementMethod(LinkMovementMethod.getInstance()); 

//设置字体不同大小 
SpannableStringBuilder sb = new SpannableStringBuilder(numText); 
 
      sb.setSpan(new AbsoluteSizeSpan(App.getInstance().getResources() 
          .getDimensionPixelSize(R.dimen.text_size_24)), 0, 
          income.indexOf(".") + 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 
      sb.setSpan(new AbsoluteSizeSpan(App.getInstance().getResources() 
          .getDimensionPixelSize(R.dimen.text_size_16)), 
          income.indexOf(".") + 1, income.length(), 
          Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); 
      view.setText(sb); 

SpannableStringBuilder sb = new SpannableStringBuilder(num); 
SpannableStringBuilder sbUnitName = sb.append("元"); 
sbUnitName.setSpan(new AbsoluteSizeSpan(getResources().getDimensionPixelSize(floatSizeResourcesId)), num.length() - 1, num.length() + unitName.length(),Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);