Android webView中调用JavaS…

原文地址：Android webView中调用JavaScript作者：yyylinuxpackage com.samll.games.pilishaizi;

import android.app.Activity;

import android.app.AlertDialog;

import android.app.AlertDialog.Builder;

import android.content.DialogInterface;

import android.os.Bundle;

import android.os.Handler;

import android.view.KeyEvent;

import android.webkit.JsResult;

import android.webkit.WebChromeClient;

import android.webkit.WebSettings;

import android.webkit.WebView;

import android.webkit.WebViewClient;

public class PiLiShaiZiActivity extends Activity {

 WebView webView;

 Handler mHandler = new Handler();

 @Override

    public void
onCreate(Bundle savedInstanceState) {

   

       
super.onCreate(savedInstanceState);

       
setContentView(R.layout.main);

       
//实例化webView

       
webView = (WebView)findViewById(R.id.webView1);

       
//设置Web属性，能够执行JavaScript脚本

       
WebSettings webSettings  =
webView.getSettings();

       
webSettings.setJavaScriptEnabled(true);

       
//设置可以访问文件 

  webSettings.setAllowFileAccess(true);

  webView.setWebChromeClient(new
WebChromeClient() {

   //
处理javascript中的confirm

   @Override

   public
boolean onJsConfirm(WebView view, String url,

     String
message, final JsResult result) {

    Builder
builder = new Builder(PiLiShaiZiActivity.this);

    ;

    builder.setMessage(message);

    builder.setPositiveButton("确定",

      new
AlertDialog.OnClickListener() {

       public
void onClick(DialogInterface dialog,

         int
which) {

        result.confirm();

       }

      });

    builder.setNegativeButton("取消",

      new
DialogInterface.OnClickListener() {

       public
void onClick(DialogInterface dialog,

         int
which) {

        result.cancel();

       }

      });

    builder.setCancelable(false);

    builder.create();

    builder.show();

    return
true;

   }

  });

     
//设置默认缩放方式尺寸是far

       
webView.getSettings().setDefaultZoom(WebSettings.ZoomDensity.FAR);

       
//支持缩放

       
webSettings.setSupportZoom(true);

       
// 缩放按钮

      
// webSettings.setBuiltInZoomControls(true);

       
//webView.setInitialScale(-1);//为25%，最小缩放等级

 

       
//加载Url内容

       
webView.loadUrl("file:///android_asset/pilishaizi/index.htm");

       
//设置web视图客户端

       
webView.setWebViewClient(new HelloWebViewClient());

       

 }

 

 //设置回退

 @Override

 public boolean onKeyDown(int keyCode, KeyEvent
event) {

  if(keyCode==KeyEvent.KEYCODE_BACK){

   //弹出确定退出对话框

   new
AlertDialog.Builder(this).setTitle("退出").setMessage("确定退出霹雳骰子游戏吗?")

   .setPositiveButton("确定",
new OkListener(this))

   .setNegativeButton("取消",
new CancelListener(this)).show();

   return
true;

  }

  return super.onKeyDown(keyCode,
event);

 }

 

 //Web视图客户端

 private class HelloWebViewClient extends
WebViewClient{

  @Override

  public boolean
shouldOverrideUrlLoading(WebView view, String url) {

   // TODO
Auto-generated method stub

   view.loadUrl(url);

   return
true;

  }

 }

    protected
void onDestroy() { 

       
super.onDestroy();           

       
System.exit(0); 

       
//或者下面这种方式 

       
//android.os.Process.killProcess(android.os.Process.myPid());  

    }

 

 

}