Android WiFi管理(WIFI_SERVICE)

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.entel.research"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk android:minSdkVersion="7" />    <application        android:icon="@drawable/ic_launcher"        android:label="@string/app_name" android:debuggable="true">        <activity            android:label="@string/app_name"            android:name=".WifiManagerActivity" >            <intent-filter >                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application>    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />    <uses-permission android:name="android.permission.WAKE_LOCK" />    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /></manifest>

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <TextView        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="@string/hello" />    <Button        android:id="@+id/wifiManager_open"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="打开WiFi" />    <Button        android:id="@+id/wifiManager_close"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="关闭WiFi" />    <Button        android:id="@+id/wifiManager_check"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="显示WiFi状态" />    <Button        android:id="@+id/wifiManager_WIFI_SETTINGS"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="WiFi网络设置" />    <Button        android:id="@+id/threeGManager_State"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="显示3G边境状态" />        <Button        android:id="@+id/wifiManager_WIRELESS_SETTINGS"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="无线网络配置" /></LinearLayout>

package com.entel.research;import android.app.Activity;import android.content.Context;import android.content.Intent;import android.net.ConnectivityManager;import android.net.NetworkInfo.State;import android.net.wifi.WifiManager;import android.os.Bundle;import android.provider.Settings;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.Toast;public class WifiManagerActivity extends Activity{@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);Button wifiManager_open = (Button) findViewById(R.id.wifiManager_open);Button wifiManager_close = (Button) findViewById(R.id.wifiManager_close);Button wifiManager_check = (Button) findViewById(R.id.wifiManager_check);Button wifiManager_WIFI_SETTINGS = (Button) findViewById(R.id.wifiManager_WIFI_SETTINGS);Button wifiManager_WIRELESS_SETTINGS = (Button) findViewById(R.id.wifiManager_WIRELESS_SETTINGS);Button threeGManager_State = (Button) findViewById(R.id.threeGManager_State);final WifiManager wifiManager = (WifiManager) WifiManagerActivity.this.getSystemService(Context.WIFI_SERVICE);final ConnectivityManager conMan = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);wifiManager_open.setOnClickListener(new OnClickListener(){public void onClick(View v){wifiManager.setWifiEnabled(true);Toast.makeText(WifiManagerActivity.this, "Wifi开启",Toast.LENGTH_SHORT).show();}});wifiManager_close.setOnClickListener(new OnClickListener(){public void onClick(View v){if (wifiManager.isWifiEnabled()){wifiManager.setWifiEnabled(false);Toast.makeText(WifiManagerActivity.this, "Wifi关闭",Toast.LENGTH_SHORT).show();}Toast.makeText(WifiManagerActivity.this, "Wifi关闭",Toast.LENGTH_SHORT).show();}});wifiManager_check.setOnClickListener(new OnClickListener(){public void onClick(View v){String result = null;switch (wifiManager.getWifiState()){case WifiManager.WIFI_STATE_DISABLED:result = "WIFI已关闭";break;case WifiManager.WIFI_STATE_DISABLING:result = "WIFI正在关闭中";break;case WifiManager.WIFI_STATE_ENABLED:result = "WIFI已启用";break;case WifiManager.WIFI_STATE_ENABLING:result = "WIFI正在启动中";break;case WifiManager.WIFI_STATE_UNKNOWN:result = "未知WIFI状态";break;}Toast.makeText(WifiManagerActivity.this, result, Toast.LENGTH_SHORT).show();}});wifiManager_WIFI_SETTINGS.setOnClickListener(new OnClickListener(){public void onClick(View v){startActivity(new Intent(Settings.ACTION_WIFI_SETTINGS));}});threeGManager_State.setOnClickListener(new OnClickListener(){public void onClick(View v){State mobile = conMan.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState();Toast.makeText(WifiManagerActivity.this, mobile.toString(),Toast.LENGTH_SHORT).show();}});wifiManager_WIRELESS_SETTINGS.setOnClickListener(new OnClickListener(){public void onClick(View v){startActivity(new Intent(Settings.ACTION_WIRELESS_SETTINGS));}});}}