如何在TextView中的部分文字上响应点击事件
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发布时间：2022-05-25 02:31
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热心网友
时间：2023-11-25 05:30
package com.TextHtml; import android.app.Activity; import android.content.Context; 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 { /* * Called when the activity is first created. */ private TextView tv; static Context ctx = null ; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); ctx = this ; tv = (TextView) findViewById(R.id.tv); String htmlLinkText= " <a href=\\" +"<a href="www.baidu.com/><u">www.baidu.com/><u</a>>我的CSDN博客 </u></a>"; 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 for (URLSpan url : urls){ MyURLSpan myURLSpan = new MyURLSpan(url.getURL()); style.setSpan(myURLSpan,sp.getSpanStart(url),sp.getSpanEnd(url),Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); } tv.setText(style); } } private static class MyURLSpan extends ClickableSpan{ private String mUrl; MyURLSpan(String url) { mUrl = url; } @Override public void onClick(View widget) { // TODO Auto-generated method stub Toast.makeText(ctx, " hello! " ,Toast.LENGTH_LONG).show(); } } }
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