Android(安卓)WebView

布局文件<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:weightSum="1">    <EditText android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/editText1">        <requestFocus></requestFocus>    </EditText>    <LinearLayout     android:orientation="horizontal"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    >    <Button android:text="确定" android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>    <Button android:text="取消" android:id="@+id/button2" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>     </LinearLayout>  <WebView android:id="@+id/webView1" android:layout_width="match_parent" android:layout_height="match_parent"></WebView></LinearLayout>
import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.webkit.WebSettings;import android.webkit.WebView;import android.webkit.WebViewClient;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;public class Mp3infoActivity extends Activity {    /** Called when the activity is first created. */       private Button button_Ok,button_Reset;    private WebView webView;    private EditText editText;    private WebSettings webSettings;    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        button_Ok=(Button)findViewById(R.id.button1);        button_Reset=(Button)findViewById(R.id.button2);        webView=(WebView)findViewById(R.id.webView1);        webSettings=webView.getSettings();        webSettings.setJavaScriptEnabled(true);//支持JS        webSettings.setUseWideViewPort(true);////让浏览器支持用户自定义view        webSettings.setBuiltInZoomControls(true);//支持缩放        webSettings.setAllowFileAccess(true);//允许访问android系统数据文件        editText=(EditText)findViewById(R.id.editText1);                button_Ok.setOnClickListener(new ButtonListenr());        button_Reset.setOnClickListener(new ButtonListenr());                   }    private class ButtonListenr implements OnClickListener{@Overridepublic void onClick(View v) {// TODO Auto-generated method stubswitch (v.getId()) {case R.id.button1:String stringUrl=editText.getText().toString();stringUrl=stringUrl.trim();//去掉空格if (stringUrl.length()==0) {Toast.makeText(getApplicationContext(), "网址为空", Toast.LENGTH_LONG).show();}else {stringUrl="http://ting.baidu.com/search?key="+stringUrl;webView.loadUrl(stringUrl);}break;            case R.id.button2:            editText.setText(null);            break;default:break;}}        } }
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