Question

我正在android studio上构建一个具有特定计算结果的应用程序，我需要在结果中用红色做一些注释，请参阅示例：

考虑你的考虑（r1，r2，r3）是字符串

result.setText ( "creat result" +
"\n salaz " + r1+
"\n jalf " +r2+
"\n mdar" +r3 

);

结果：

salaz 20 mg

jalf 10 mg

mdar 5 mg

所以我需要jalf 10毫克红线

需要这一行红色"\n jalf " +r2+"

有没有办法让它变红？!!？

Answer 1

我不确定这会起作用，但理论上应该这样。

Spannable r1Span = new SpannableString(r1);
Spannable r2Span = new SpannableString(r2);
Spannable r3Span = new SpannableString(r3);

r1Span.setSpan(new ForegroundColorSpan(Color.RED), 0, r1.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);
r2Span.setSpan(new ForegroundColorSpan(Color.RED), 0, r2.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);
r3Span.setSpan(new ForegroundColorSpan(Color.RED), 0, r3.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);

String result = TextUtils.concat("creat result" +
"\n salaz " + r1Span+
"\n jalf " +r2Span+
"\n mdar" +r3Span); 

result.setText (result);

让我知道它是怎么回事。

Answer 2

尝试让我知道它是否有效：

YOUR_TEXTVIEW.setText(Html.fromHtml("<font color=\"#006400\">" + "Price: $" + _price + "   " + "</font>" + "&nbsp;&nbsp;&nbsp;" + "<font color=\"#3F23F5\">" + "Rooms:  " + _room+ "&nbsp;&nbsp;&nbsp;" +  "</font>"
                                     + "     " + "<font color=\"#DF7401\">" + "District:  " + _district + "</font>"));

Answer 3

使用

int colorRed = getResources().getColor(R.color.red); 
String text = getString(R.string.text);
SpannableString spannable = new SpannableString(text); // here we set the color
spannable.setSpan(new ForegroundColorSpan(colorBlue), 0, text.length(), 0);

yourTextView.setText(spannable);

将此处的长度处理到您想要设置颜色的位置

如何在textview中使用多种颜色制作文本？

3 个答案: