android webview 简单浏览器实现代码

文件main.java

package com.hhbrowser.android;
import android.app.activity;
import android.os.bundle;
import android.os.handler;
import android.util.log;
import android.view.view;
import android.webkit.webview;
import android.webkit.webviewclient;
import android.widget.button;
import android.widget.edittext;
public class main extends activity {
    /** called when the activity is first created. */
 webview wv;
    handler handler;
    button btnbutton;
    @override
    public void oncreate(bundle savedinstancestate) {
        super.oncreate(savedinstancestate);
        setcontentview(r.layout.main);
        wv = (webview)findviewbyid(r.id.webview1);
  wv.getsettings().setjavascriptenabled(true);
  wv.setscrollbarstyle(0);
  wv.loadurl("http://www.baidu.com");
  btnbutton = (button)findviewbyid(r.id.turn);
  btnbutton.setonclicklistener(new view.onclicklistener() {
   @override
   public void onclick(view v) {
    edittext edittext = (edittext)findviewbyid(r.id.edittext1);
    string strurl = string.valueof(edittext.gettext());
    if(strurl.contains("http://"))
    {
     log.v("ttt", strurl);
     loadurl(wv,strurl);
    }else {
     log.v("ttt", strurl);
     loadurl(wv,"http://www.baidu.com");
    }  
   }
  });
  wv.setwebviewclient(new webviewclient()
  {
   public boolean shouldoverrideurlloading(final webview view, final string url) {
     edittext newtext = (edittext)findviewbyid(r.id.edittext1);
     newtext.settext(url);
              loadurl(view,url);
              return true; 
   }
  });
    }
    public void loadurl(final webview view,final string url){
  new thread(){
   public void run(){
     view.loadurl(url);
   }
  }.start();
 }
}

2布局文件main.xml

<http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >
<android:layout_height="wrap_content"
android:baselinealigned="false">
     <android:text=""
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:id="@+id/edittext1"
     android:maxems="15"
     android:minems="10"
     android:layout_gravity="center_vertical"
     >

 
   android:id="@+id/turn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">

   <android:layout_height="wrap_content"
        android:baselinealigned="false">
     <android:layout_width="fill_parent"
    android:layout_height="wrap_content">

配置文件androidmanifest.xml里面需要设置