Android WebView的使用

//判断输入的内容是不是网址

if(URLUtil.isNetworkUrl(url)){

wv.loadUrl(url);

}else{

et.setHint("输入的网址不合法，请重新输入");

// et.setText("输入的网址不合法，请重新输入");

}

}

});

}

@Override

public boolean onKeyDown(int keyCode, KeyEvent event) {

if(keyCode==KeyEvent.KEYCODE_BACK && wv.canGoBack()){

wv.goBack();//返回前一个页面

return true;

}

return super.onKeyDown(keyCode, event);

}

}

package com.Aina.Android;

import android.app.Activity;

import android.app.AlertDialog;

import android.app.AlertDialog.Builder;

import android.content.DialogInterface;

import android.os.Bundle;

import android.view.KeyEvent;

import android.view.LayoutInflater;

import android.view.View;

import android.view.Window;

import android.webkit.JsPromptResult;

import android.webkit.JsResult;

import android.webkit.URLUtil;

import android.webkit.WebChromeClient;

import android.webkit.WebSettings;

import android.webkit.WebView;

import android.webkit.WebViewClient;

import android.widget.Button;

import android.widget.EditText;

import android.widget.TextView;

public class Test extends Activity {

/** Called when the activity is first created. */

private EditText et = null;

private Button btn = null;

private WebView wv = null;

private WebSettings ws = null;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

et = (EditText) this.findViewById(R.id.EditText01);