关键词

Android 、TextView、多种颜色

摘要

由于项目开发需要，一个 TextView 为了强调内容，需要显示不同的字体颜色和大小

效果图

TextView效果图.png

方法一

        int totalCount = 3;
        double totalPrice = 33.8;

        String str = "共<font color='#ff0000'> " + totalCount + " </font>件商品，"
                + "已付款<font color='#ff0000'> ￥" + String.format("%.2f", totalPrice) + " </font>元";
        Spanned content =  Html.fromHtml(str);
        mTextView.setText (content)；

注意：不能将包含 Html 标签的字符串放到 strings.xml

方法二

        int totalCount = 3;
        double totalPrice = 33.8;
        String totalCountStr = totalCount +"";
        String totalPriceStr = String.format("%.2f", totalPrice);

       String str = "共 " + totalCountStr + "件商品，"
                + "已付款￥" + totalPriceStr  + "元";
       SpannableStringBuilder style = new SpannableStringBuilder(str);  
       style.setSpan(new ForegroundColorSpan(Color.RED), 1, (totalCountStr +1), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);  
       style.setSpan(new ForegroundColorSpan(Color.RED), (totalCountStr+9), (str.length()-1), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);  
       mTextView.setText(style);