最新历史版本 :android--设置TextView部分文字的颜色和背景(高亮显示)
Java代码

1. public class HighLightActivity extends Activity {
2. String strs="我的心太乱了，给我点空白。";
3. TextView textview;
4. int start =3;
5. int end = 5;
6. /** Called when the activity is first created. */
7. @Override
8. public void onCreate(Bundle savedInstanceState) {
9. super.onCreate(savedInstanceState);
10. setContentView(R.layout.high_light);
11. textview=(TextView)findViewById(R.id.textview);
12. SpannableStringBuilder style=new SpannableStringBuilder(strs);
13. style.setSpan(new BackgroundColorSpan(Color.RED),start,end,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
14. textview.setText(style);
16. }
18. }

同时设置文字和背景高亮显示：

1. package com.justel.contact;
3. import android.app.Activity;
4. import android.graphics.Color;
5. import android.os.Bundle;
6. import android.text.Spannable;
7. import android.text.SpannableStringBuilder;
8. import android.text.style.BackgroundColorSpan;
9. import android.text.style.ForegroundColorSpan;
10. import android.widget.TextView;
12. public class HighLightActivity extends Activity {
13. String strs="我的心太乱了，给我点空白。";
14. TextView textview;
15. int start =3;
16. int end = 5;
17. /** Called when the activity is first created. */
18. @Override
19. public void onCreate(Bundle savedInstanceState) {
20. super.onCreate(savedInstanceState);
21. setContentView(R.layout.high_light);
22. textview=(TextView)findViewById(R.id.textview);
23. SpannableStringBuilder style=new SpannableStringBuilder(strs);
24. style.setSpan(new BackgroundColorSpan(Color.RED),start,end,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
25. style.setSpan(new ForegroundColorSpan(Color.RED),7,9,Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
26. textview.setText(style);
28. }
30. }

参考内容：http://orgcent.com/android-textview-background-color/

参数说明：
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE
API里面解释：Spans of type SPAN_EXCLUSIVE_EXCLUSIVE do not expand to include text inserted at either their starting or ending point. They can never have a length of 0 and are automatically removed from the buffer if all the text they cover is removed.
即在原文本头或尾追加新文本的样式不受原文本样式影响，原文本高亮，新追加文本不高亮。

Spannable.SPAN_EXCLUSIVE_INCLUSIVE
API里面解释：Non-0-length spans of type SPAN_INCLUSIVE_EXCLUSIVE expand to include text inserted at their ending point but not at their starting point. When 0-length, they behave like points.
即在原文本尾追加新文本的样式受原文本样式影响，原来文本尾高亮，新追加文本也高亮。