Android TextView 设置多种颜色

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 " + totalCount + " 件商品,"
                + "已付款 ¥" + String.format("%.2f", totalPrice) + " 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);  

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