title.setText("Your big island <b>ADVENTURE!</b>";
使用spans。
例子：
final SpannableStringBuilder sb = new SpannableStringBuilder("your text here");
// Span to set text color to some RGB value
final ForegroundColorSpan fcs = new ForegroundColorSpan(Color.rgb(158, 158, 158));
// Span to make text bold
final StyleSpan bss = new StyleSpan(android.graphics.Typeface.BOLD);
// Set the text color for first 4 characters
sb.setSpan(fcs, 0, 4, Spannable.SPAN_INCLUSIVE_INCLUSIVE);
// make them also bold
sb.setSpan(bss, 0, 4, Spannable.SPAN_INCLUSIVE_INCLUSIVE);
yourTextView.setText(sb);
title.setText(Html.fromHtml("Your big island <b>ADVENTURE!</b>"));
<font color="#FFAADD>文本</font> 不起作用吗？ - milosmns我希望这能对你有所帮助（它适用于多语言）。
<string name="test_string" ><![CDATA[<font color="%1$s"><b>Test/b></font>]]> String</string>
在您的Java代码中，您可以这样做：
int color = context.getResources().getColor(android.R.color.holo_blue_light);
String string = context.getString(R.string.test_string, color);
textView.setText(Html.fromHtml(string));
这样，只有“Test”这部分会被着色（并加粗）。
如果您正在使用Kotlin，可以使用android-ktx库执行以下操作。
val title = SpannableStringBuilder()
.append("Your big island ")
.bold { append("ADVENTURE") }
titleTextField.text = title
bold是SpannableStringBuilder的扩展函数。您可以在此处查看文档here，了解您可以使用的操作列表。val ssb = SpannableStringBuilder()
.color(green) { append("Green text ") }
.append("Normal text ")
.scale(0.5F) { append("Text at half size ") }
.backgroundColor(green) { append("Background green") }
其中green是一个已解析的RGB颜色。
甚至可以嵌套使用，这样你就可以得到像嵌入式DSL一样的东西：
bold { underline { italic { append("Bold and underlined") } } }
要使其正常工作，您需要在应用程序模块级别的build.gradle中添加以下内容：
repositories {
google()
}
dependencies {
implementation 'androidx.core:core-ktx:0.3'
}
val spannableStringBuilder = SpannableStringBuilder() spannableStringBuilder.bold { underline { color(R.color.test_color) { append(underlinedText) } } } - Abhishek Saxena这里有一个例子，它会查找所有出现的单词（不区分大小写），并将它们标记为红色：
String notes = "aaa AAA xAaax abc aaA xxx";
SpannableStringBuilder sb = new SpannableStringBuilder(notes);
Pattern p = Pattern.compile("aaa", Pattern.CASE_INSENSITIVE);
Matcher m = p.matcher(notes);
while (m.find()){
//String word = m.group();
//String word1 = notes.substring(m.start(), m.end());
sb.setSpan(new ForegroundColorSpan(Color.rgb(255, 0, 0)), m.start(), m.end(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);
}
editText.setText(sb);
TextView TV = (TextView)findViewById(R.id.mytextview01);
Spannable WordtoSpan = new SpannableString("I know just how to whisper, And I know just how to cry,I know just where to find the answers");
WordtoSpan.setSpan(new ForegroundColorSpan(Color.BLUE), 15, 30, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
TV.setText(WordtoSpan);
SpannableStringBuilder，通过逐个附加不同的span，而不是通过计算字符串长度来调用setSpan函数。val amountSpannableString = SpannableString("₹$amount").apply {
// text color
setSpan(ForegroundColorSpan("#FD0025".parseColor()), 0, length, 0)
// text size
setSpan(AbsoluteSizeSpan(AMOUNT_SIZE_IN_SP.spToPx(context)), 0, length, 0)
// font medium
setSpan(TypefaceSpan(context.getString(R.string.font_roboto_medium)), 0, length, 0)
}
val spannable: Spannable = SpannableStringBuilder().apply {
// append the different spans one by one
// rather than calling setSpan by calculating the string lengths
append(TEXT_BEFORE_AMOUNT)
append(amountSpannableString)
append(TEXT_AFTER_AMOUNT)
}
public static void setColorForPath(Spannable spannable, String[] paths, int color) {
for (int i = 0; i < paths.length; i++) {
int indexOfPath = spannable.toString().indexOf(paths[i]);
if (indexOfPath == -1) {
continue;
}
spannable.setSpan(new ForegroundColorSpan(color), indexOfPath,
indexOfPath + paths[i].length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
}
使用
Spannable spannable = new SpannableString("Your big island ADVENTURE");
Utils.setColorForPath(spannable, new String[] { "big", "ADVENTURE" }, Color.BLUE);
textView.setText(spannable);
String str1 = "If I forget my promise to ";
String penalty = "Eat breakfast every morning,";
String str2 = " then I ";
String promise = "lose my favorite toy";
String strb = "<u><b><font color='#081137'>"+ penalty +",</font></b></u>";
String strc = "<u><b><font color='#081137'>"+ promise + "</font></b></u>";
String strd = str1 +strb+ str2 + strc;
tv_notification.setText(Html.fromHtml(strd)); SpannableStringBuilder builder = new SpannableStringBuilder();
SpannableString text1 = new SpannableString(str1);
text1.setSpan(new ForegroundColorSpan(getResources().getColor(R.color.silver)), 0, str1.length() - 1, 0);
builder.append(text1);
SpannableString text2 = new SpannableString(penalty);
text2.setSpan(new ForegroundColorSpan(getResources().getColor(R.color.midnight)), 0, penalty.length(), 0);
text2.setSpan(new UnderlineSpan(), 0, penalty.length(), 0);
builder.append(text2);
SpannableString text3 = new SpannableString(str2);
text3.setSpan(new ForegroundColorSpan(getResources().getColor(R.color.silver)),0, str2.length(), 0);
builder.append(text3);
SpannableString text4 = new SpannableString(promise);
text4.setSpan(new ForegroundColorSpan(getResources().getColor(R.color.midnight)), 0, promise.length(), 0);
text4.setSpan(new UnderlineSpan(),0, promise.length(), 0);
builder.append(text4);
tv_notification.setText(builder);如果您想使用HTML，您需要使用TextView.setText(Html.fromHtml(String htmlString))
如果您经常需要这样做/重复这样的操作，您可以查看我编写的一个类 (SpannableBuilder)，因为Html.fromHtml()不是很高效（它在内部使用了一个巨大的XML解析器）。该类在此博客文章中有描述。