blocks|key|1014398|text|如果你想使用超文本标记语言，你需要使用TextView.setText(Html.fromHtml(String+htmlString))|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1014399|如果你想经常/重复地这样做，你可以看看我写的一个类(SpannableBuilder)，因为Html.fromHtml()的效率不是很高(它内部使用了一个很大的SpannableBuilder解析机制)。此blog+posting中对其进行了描述。|1014400|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/pilhuhn/ZwitscherA/blob/master/src/de/bsd/zwitscher/helper/SpannableBuilder.java|1|2|http://javablogs.com/Jump.action?id=618026^0|J|1E|0|1A|F|Q|G|0|28|G|1|2V|C|2|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@$9|Y|A|Z|1|10]|$9|11|A|12|1|13]|$9|14|A|15|1|16]]|E|$]]|$1|H|3|-4|5|6|7|17|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]|P|$5|K|L|M|E|$N|O]]|Q|$5|K|L|M|E|$N|R]]]]

If you want to use HTML, you need to use <code>TextView.setText(Html.fromHtml(String htmlString))</code>

If you want to do that often / repeatedly, you may have a look at a class (<a href="https://github.com/pilhuhn/ZwitscherA/blob/master/src/de/bsd/zwitscher/helper/SpannableBuilder.java" rel="nofollow">SpannableBuilder</a>) I wrote, as <code>Html.fromHtml()</code> is not very efficient (it is using a big xml parsing machinery inside). It is described in this <a href="http://javablogs.com/Jump.action?id=618026" rel="nofollow">blog posting</a>.

blocks|key|800020|text|title.setText(Html.fromHtml("Your+big+island+ADVENTURE!"));+|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|800021|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>title.setText(Html.fromHtml("Your big island &lt;b&gt;ADVENTURE!&lt;/b&gt;")); 
</code></pre>

blocks|key|1014456|text|您可以使用Spannable为文本的某些部分提供某些方面。如果你愿意，我可以查一个例子。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1014457|啊，就在stackoverflow上。|1014458|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);|code-block|syntax|javascript|1014459|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/3282940/set-color-of-textview-span-in-android^0|5|9|0|4|D|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@$9|Y|A|Z|1|10]]|E|$]]|$1|H|3|I|5|J|7|11|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

You can use a <code>Spannable</code> to give certain parts of a text certain aspects. I can look up an example if you want.

Ah, from right here on <a href="https://stackoverflow.com/questions/3282940/set-color-of-textview-span-in-android">stackoverflow</a>.

<pre><code>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);
</code></pre>

blocks|key|1014478|text|使用spans。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1014479|示例：|1014480|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);|code-block|syntax|javascript|1014481|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.android.com/reference/android/text/style/package-summary.html^0|2|5|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

Use <a href="http://developer.android.com/reference/android/text/style/package-summary.html" rel="noreferrer">spans</a>.

Example:

<pre><code>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);
</code></pre>

blocks|key|800115|text|我希望这对你有帮助(它适用于多语言)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|800116|<string+name="test_string"+><![CDATA[<font+color="%251$s">Test/b>]]>+String</string>|code-block|syntax|javascript|800117|在你的java代码中，你可以这样做：|800118|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));|800119|这样，只有"Test“部分会有颜色(和粗体)。|800120|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I hope this helps you (it works with multi language).

<pre><code>&lt;string name="test_string" &gt;&lt;![CDATA[&lt;font color="%1$s"&gt;&lt;b&gt;Test/b&gt;&lt;/font&gt;]]&gt; String&lt;/string&gt;
</code></pre>

And on your java code, you can do:

<pre><code>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));
</code></pre>

This way, only the "Test" part will be colored (and bold).

blocks|key|1014567|text|下面是一个示例，它将查找一个单词的所有匹配项(不区分大小写)，并将它们涂成红色：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1014568|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);|code-block|syntax|javascript|1014569|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Here's an example that will look for all occurrences of a word (case insensitive), and color them red:

<pre><code>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);
</code></pre>

blocks|key|800337|text|可以连接两个或多个跨度。这种方法更容易使用长度值为动态文本上色。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|800338|SpannableStringBuilder+span1+=+new+SpannableStringBuilder("Android");
ForegroundColorSpan+color1=new+ForegroundColorSpan(getResources().getColor(R.color.colorPrimary));
span1.setSpan(color1,+0,+span1.length(),+Spannable.SPAN_INCLUSIVE_INCLUSIVE);

SpannableStringBuilder+span2+=+new+SpannableStringBuilder("Love");
ForegroundColorSpan+color2=new+ForegroundColorSpan(getResources().getColor(R.color.colorSecondary));
span2.setSpan(color2,+0,+span2.length(),+Spannable.SPAN_INCLUSIVE_INCLUSIVE);

Spanned+concatenated=(Spanned)+TextUtils.concat(span1,"+=>+",span2);

SpannableStringBuilder+result+=+new+SpannableStringBuilder(concatenated);

TextView+tv+=+(TextView)+rootView.findViewById(R.id.my_texview);
tv.setText(result,+TextView.BufferType.SPANNABLE);|code-block|syntax|javascript|800339|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can concatenate two or more Spans. This way is easier to color dynamic text using length value.

<pre><code>SpannableStringBuilder span1 = new SpannableStringBuilder("Android");
ForegroundColorSpan color1=new ForegroundColorSpan(getResources().getColor(R.color.colorPrimary));
span1.setSpan(color1, 0, span1.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);

SpannableStringBuilder span2 = new SpannableStringBuilder("Love");
ForegroundColorSpan color2=new ForegroundColorSpan(getResources().getColor(R.color.colorSecondary));
span2.setSpan(color2, 0, span2.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);

Spanned concatenated=(Spanned) TextUtils.concat(span1," =&gt; ",span2);

SpannableStringBuilder result = new SpannableStringBuilder(concatenated);

TextView tv = (TextView) rootView.findViewById(R.id.my_texview);
tv.setText(result, TextView.BufferType.SPANNABLE);
</code></pre>

blocks|key|800379|text|​|type|unstyled|depth|inlineStyleRanges|entityRanges|data|800380|++++++++++++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+=+"<font+color='#081137'>"%2B+penalty+%2B",";
++++++++++++String+strc+=+"<font+color='#081137'>"%2B+promise+%2B+"";
++++++++++++String+strd+=+str1+%2Bstrb%2B+str2+%2B+strc;
+++++++++++tv_notification.setText(Html.fromHtml(strd));|code-block|syntax|javascript|800381|800382|或者使用以下代码：|800383|800384|++++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);|800385|800386|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Q|8|@]|9|@]|A|$E|F]]|$1|G|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|S|8|@]|9|@]|A|$]]|$1|J|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|U|8|@]|9|@]|A|$E|F]]|$1|M|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|O|$]]

<div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-html lang-html prettyprint-override"><code> 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 = "&lt;u&gt;&lt;b&gt;&lt;font color='#081137'&gt;"+ penalty +",&lt;/font&gt;&lt;/b&gt;&lt;/u&gt;";
 String strc = "&lt;u&gt;&lt;b&gt;&lt;font color='#081137'&gt;"+ promise + "&lt;/font&gt;&lt;/b&gt;&lt;/u&gt;";
 String strd = str1 +strb+ str2 + strc;
 tv_notification.setText(Html.fromHtml(strd));</code></pre>
</div>
</div>


or use this code:

<div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-html lang-html prettyprint-override"><code> 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);</code></pre>
</div>
</div>

blocks|key|1014804|text|public+static+void+setColorForPath(Spannable+spannable,+String[]+paths,+int+color)+{
++++for+(int+i+=+0;+i+<+paths.length;+i%2B%2B)+{
++++++++int+indexOfPath+=+spannable.toString().indexOf(paths[i]);
++++++++if+(indexOfPath+==+-1)+{
++++++++++++continue;
++++++++}
++++++++spannable.setSpan(new+ForegroundColorSpan(color),+indexOfPath,
++++++++++++++++indexOfPath+%2B+paths[i].length(),+Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
++++}
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1014805|使用|unstyled|1014806|Spannable+spannable+=+new+SpannableString("Your+big+island+ADVENTURE");
Utils.setColorForPath(spannable,+new+String[]+{+"big",+"ADVENTURE"+},+Color.BLUE);

textView.setText(spannable);|1014807|​|1014808|📷|atomic|offset|length|1014809|1014810|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/409c88217fe486ff0a0fb4a23b853336.png|imageAlt^0|0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|10|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|11|8|@]|9|@]|A|$B|C]]|$1|I|3|J|5|F|7|12|8|@]|9|@]|A|$]]|$1|K|3|L|5|M|7|13|8|@]|9|@$N|14|O|15|1|16]]|A|$]]|$1|P|3|J|5|F|7|17|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|F|7|18|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X|Y|-4]]]]

<pre><code>public static void setColorForPath(Spannable spannable, String[] paths, int color) {
 for (int i = 0; i &lt; 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);
 }
}
</code></pre>

Using

<pre><code>Spannable spannable = new SpannableString("Your big island ADVENTURE");
Utils.setColorForPath(spannable, new String[] { "big", "ADVENTURE" }, Color.BLUE);

textView.setText(spannable);
</code></pre>

<a href="https://i.stack.imgur.com/W1fJS.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/W1fJS.png" alt="enter image description here"></a>

blocks|key|1014886|text|如果您使用的是Kotlin，则可以使用android-ktx库执行以下操作|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1014887|val+title+=+SpannableStringBuilder()
++++++++.append("Your+big+island+")
++++++++.bold+{+append("ADVENTURE")+}+

titleTextField.text+=+title|code-block|syntax|javascript|1014888|bold是SpannableStringBuilder上的一个扩展函数。您可以查看documentation+here，了解可以使用的操作列表。|style|CODE|1014889|另一个例子：|1014890|val+ssb+=+SpannableStringBuilder()
++++++++++++.color(green)+{+append("Green+text+")+}
++++++++++++.append("Normal+text+")
++++++++++++.scale(0.5F)+{+append("Text+at+half+size+")+}
++++++++++++.backgroundColor(green)+{+append("Background+green")+}|1014891|其中green是分辨率的RGB颜色。|1014892|甚至可以嵌套跨度，这样您就可以得到类似于嵌入式DSL的东西：|1014893|bold+{+underline+{+italic+{+append("Bold+and+underlined")+}+}+}|1014894|您需要在应用程序模块级build.gradle中提供以下内容才能使其工作：|1014895|repositories+{
++++google()
}

dependencies+{
++++implementation+'androidx.core:core-ktx:0.3'
}|1014896|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/android/android-ktx|1|https://android.github.io/android-ktx/core-ktx/androidx.text/android.text.-spannable-string-builder/index.html^0|J|B|0|0|0|0|4|5|M|1J|4|1|0|0|0|2|5|0|0|0|B|C|0|0^^$0|@$1|2|3|4|5|6|7|1A|8|@]|9|@$A|1B|B|1C|1|1D]]|C|$]]|$1|D|3|E|5|F|7|1E|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|1F|8|@$A|1G|B|1H|K|L]|$A|1I|B|1J|K|L]]|9|@$A|1K|B|1L|1|1M]]|C|$]]|$1|M|3|N|5|6|7|1N|8|@]|9|@]|C|$]]|$1|O|3|P|5|F|7|1O|8|@]|9|@]|C|$G|H]]|$1|Q|3|R|5|6|7|1P|8|@$A|1Q|B|1R|K|L]]|9|@]|C|$]]|$1|S|3|T|5|6|7|1S|8|@]|9|@]|C|$]]|$1|U|3|V|5|F|7|1T|8|@]|9|@]|C|$G|H]]|$1|W|3|X|5|6|7|1U|8|@$A|1V|B|1W|K|L]]|9|@]|C|$]]|$1|Y|3|Z|5|F|7|1X|8|@]|9|@]|C|$G|H]]|$1|10|3|-4|5|6|7|1Y|8|@]|9|@]|C|$]]]|11|$12|$5|13|14|15|C|$16|17]]|18|$5|13|14|15|C|$16|19]]]]

If you are using Kotlin you can do the following using the <a href="https://github.com/android/android-ktx" rel="noreferrer">android-ktx</a> library

<pre><code>val title = SpannableStringBuilder()
 .append("Your big island ")
 .bold { append("ADVENTURE") } 

titleTextField.text = title
</code></pre>

The <code>bold</code> is an extension function on <code>SpannableStringBuilder</code>. You can see the documentation <a href="https://android.github.io/android-ktx/core-ktx/androidx.text/android.text.-spannable-string-builder/index.html" rel="noreferrer">here</a> for a list of operations you can use.

Another example:

<pre><code>val ssb = SpannableStringBuilder()
 .color(green) { append("Green text ") }
 .append("Normal text ")
 .scale(0.5F) { append("Text at half size ") }
 .backgroundColor(green) { append("Background green") }
</code></pre>

Where <code>green</code> is a resolved RGB color. 

It is even possible to nest spans so you end up with something like an embedded DSL:

<pre><code>bold { underline { italic { append("Bold and underlined") } } }
</code></pre>

You will need the following in your app module level <code>build.gradle</code> for it to work:

<pre><code>repositories {
 google()
}

dependencies {
 implementation 'androidx.core:core-ktx:0.3'
}
</code></pre>

blocks|key|800538|text|如果你不想在较低版本的软件开发工具包上遇到麻烦，请使用带有ForegroundColorSpan或BackgroundColorSpan的SpannableStringBuilder，因为HtmlCompat.fromHtml颜色样式在较旧的安卓版本上不适用。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|800539|entityMap^0|T|J|1D|J|1X|M|2M|J|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|G|$]]

If you do not want to get in trouble on lower SDK version use <code>SpannableStringBuilder</code> with <code>ForegroundColorSpan</code> or <code>BackgroundColorSpan</code> as <code>HtmlCompat.fromHtml</code> color style does not applied on older Android version.

blocks|key|800564|text|您可以在Kotlin中使用扩展函数|type|unstyled|depth|inlineStyleRanges|entityRanges|data|800565|fun+CharSequence.colorizeText(
++++textPartToColorize:+CharSequence,
++++@ColorInt+color:+Int
):+CharSequence+=+SpannableString(this).apply+{
++++val+startIndexOfText+=+this.indexOf(textPartToColorize.toString())
++++setSpan(ForegroundColorSpan(color),+startIndexOfText,+startIndexOfText.plus(textPartToColorize.length),+0)
}|code-block|syntax|javascript|800566|用法：|800567|val+colorizedText+=+"this+text+will+be+colorized"
val+myTextToColorize+=+"some+text,+$colorizedText+continue+normal+text".colorizeText(colorizedText,ContextCompat.getColor(context,+R.color.someColor))|800568|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

You can use extension function in Kotlin
<pre class="lang-kotlin prettyprint-override"><code>fun CharSequence.colorizeText(
 textPartToColorize: CharSequence,
 @ColorInt color: Int
): CharSequence = SpannableString(this).apply {
 val startIndexOfText = this.indexOf(textPartToColorize.toString())
 setSpan(ForegroundColorSpan(color), startIndexOfText, startIndexOfText.plus(textPartToColorize.length), 0)
}
</code></pre>
Usage:
<pre class="lang-kotlin prettyprint-override"><code>val colorizedText = &quot;this text will be colorized&quot;
val myTextToColorize = &quot;some text, $colorizedText continue normal text&quot;.colorizeText(colorizedText,ContextCompat.getColor(context, R.color.someColor))
</code></pre>

I am looking to change the text of a TextView view via the .setText("") method while also coloring a part of the text (or making it bold, italic, transparent, etc.)and not the rest. For example:

<pre><code>title.setText("Your big island &lt;b&gt;ADVENTURE!&lt;/b&gt;";
</code></pre>

I know the above code is incorrect but it helps illustrate what I would like to achieve. How would I do this?

Android: Coloring part of a string using TextView.setText()?

软件开发

Android

Kotlin

我希望通过.setText("")方法更改TextView视图的文本，同时对文本的一部分进行着色(或使其变为粗体、斜体、透明等)，而不是对其余部分进行着色。例如：title.setText("Your big island ADVENTURE!";我知道上面的代码是不正确的，但它有助于说明我想要实现的目标...

问Android:使用TextView.setText()对字符串的一部分进行着色？
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问Android:使用TextView.setText()对字符串的一部分进行着色？
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