TextView中添加链接，点击启动另一个Activity

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需求如题。

public class TestLinkActivity extends Activity {private TextView tv;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);tv = new TextView(this);tv.setClickable(false);String htmlLinkText = "<a href=\"测试\">link</a> specified via an <a> tag."; // 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 spansfor (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 class MyURLSpan extends ClickableSpan {private String mUrl;MyURLSpan(String url) {mUrl = url;}@Overridepublic void onClick(View widget) {Toast.makeText(TestLinkActivity.this, mUrl, Toast.LENGTH_LONG).show();widget.setBackgroundColor(Color.parseColor("#00000000"));Intent intent = new Intent(TestLinkActivity.this, TestActivity2.class);startActivity(intent);}}}

本例中如果有多个超链接，同样可以处理。

设置颜色和样式举例：

TextView是用来显示文本的，有时需要给TextView中的个别字设置为超链接，或者设置个别字的颜色、字体等，那就需要用到Spannable对象，可以借助Spannable对象实现以上设置myTextView = (TextView) this.findViewById(R.id.myTextView);         //创建一个 SpannableString对象     SpannableString sp = new SpannableString("这句话中有百度超链接,有高亮显示，这样，或者这样，还有斜体.");     //设置超链接     sp.setSpan(new URLSpan("http://www.baidu.com"), 5, 7,     Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);     //设置高亮样式一     sp.setSpan(new BackgroundColorSpan(Color.RED), 17 ,19,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);     //设置高亮样式二     sp.setSpan(new ForegroundColorSpan(Color.YELLOW),20,24,Spannable.SPAN_EXCLUSIVE_INCLUSIVE);     //设置斜体     sp.setSpan(new StyleSpan(android.graphics.Typeface.BOLD_ITALIC), 27, 29, Spannable.SPAN_EXCLUSIVE_INCLUSIVE);     //SpannableString对象设置给TextView     myTextView.setText(sp);     //设置TextView可点击     myTextView.setMovementMethod(LinkMovementMethod.getInstance());

转自：http://blog.csdn.net/gdky005/article/details/7614153