转：android TextView中超链接的事件捕捉（textview上LINK的点击事件）

Java代码

1. package com.cm;    
3. import java.util.ArrayList;    
5. import android.R.color;    
6. import android.app.Activity;    
7. import android.content.Context;    
8. import android.graphics.Color;    
9. import android.os.Bundle;    
10. import android.text.Html;    
11. import android.text.Spannable;    
12. import android.text.SpannableStringBuilder;    
13. import android.text.method.LinkMovementMethod;    
14. import android.text.style.ClickableSpan;    
15. import android.text.style.URLSpan;    
16. import android.view.View;    
17. import android.widget.TextView;    
18. import android.widget.Toast;    
20. public class TextHtml extends Activity {    
21. private TextView tv;    
22. private static Context ctx;    
24. @Override
25. public void onCreate(Bundle savedInstanceState) {    
26. super.onCreate(savedInstanceState);    
28.         tv = new TextView(this);    
29.         ctx = this;    
31.         String htmlLinkText =  "我是超链接"+ "<a style=\"color:red;\" href='lianjie'>超链接点击事件</a>";    
32. // 文字的样式（style）被覆盖，不能改变……  
34.         tv.setText(Html.fromHtml(htmlLinkText));    
35.         tv.setMovementMethod(LinkMovementMethod.getInstance());    
36.         CharSequence text = tv.getText();    
37. if (text instanceof Spannable) {    
38. int end = text.length();    
39.             Spannable sp = (Spannable) tv.getText();    
40.             URLSpan[] urls = sp.getSpans(0, end, URLSpan.class);    
41.             SpannableStringBuilder style = new SpannableStringBuilder(text);    
42.             style.clearSpans();// should clear old spans  
44. //循环把链接发过去            
45. for (URLSpan url : urls) {    
46.                 MyURLSpan myURLSpan = new MyURLSpan(url.getURL());    
47.                 style.setSpan(myURLSpan, sp.getSpanStart(url),    
48.                         sp.getSpanEnd(url), Spannable.SPAN_EXCLUSIVE_INCLUSIVE);    
49.             }    
50.             tv.setText(style);    
51.         }    
52.         setContentView(tv);    
54.     }    
56. private static class MyURLSpan extends ClickableSpan {    
58. private String mUrl;    
60.         MyURLSpan(String url) {    
61.             mUrl = url;    
62.         }    
64. @Override
65. public void onClick(View widget) {    
66. if(mUrl .equal(lianjie)){    
67.                 Toast.makeText(ctx, mUrl, Toast.LENGTH_LONG).show();    
68.                 widget.setBackgroundColor(Color.parseColor("#00000000"));    
70.             }    
71.         }    
72.     }    
73. }   

package com.cm; import java.util.ArrayList; import android.R.color; import android.app.Activity; import android.content.Context; import android.graphics.Color; import android.os.Bundle; import android.text.Html; import android.text.Spannable; import android.text.SpannableStringBuilder; import android.text.method.LinkMovementMethod; import android.text.style.ClickableSpan; import android.text.style.URLSpan; import android.view.View; import android.widget.TextView; import android.widget.Toast; public class TextHtml extends Activity { private TextView tv; private static Context ctx; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); tv = new TextView(this); ctx = this; String htmlLinkText = "我是超链接"+ "<a style=\"color:red;\" href='lianjie'>超链接点击事件</a>"; // 文字的样式（style）被覆盖，不能改变…… tv.setText(Html.fromHtml(htmlLinkText)); tv.setMovementMethod(LinkMovementMethod.getInstance()); CharSequence text = tv.getText(); if (text instanceof Spannable) { int end = text.length(); Spannable sp = (Spannable) tv.getText(); URLSpan[] urls = sp.getSpans(0, end, URLSpan.class); SpannableStringBuilder style = new SpannableStringBuilder(text); style.clearSpans();// should clear old spans //循环把链接发过去 for (URLSpan url : urls) { MyURLSpan myURLSpan = new MyURLSpan(url.getURL()); style.setSpan(myURLSpan, sp.getSpanStart(url), sp.getSpanEnd(url), Spannable.SPAN_EXCLUSIVE_INCLUSIVE); } tv.setText(style); } setContentView(tv); } private static class MyURLSpan extends ClickableSpan { private String mUrl; MyURLSpan(String url) { mUrl = url; } @Override public void onClick(View widget) { if(mUrl .equal(lianjie)){ Toast.makeText(ctx, mUrl, Toast.LENGTH_LONG).show(); widget.setBackgroundColor(Color.parseColor("#00000000")); } } } }