APP--简单的WIFI开发(带密码)
package com.cart.view;
import java.util.List;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo.State;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
import android.util.Log;
public class NetChoice
{
// String wifiSSID="FORTUNETONE";
Context context;
WifiManager wifiManager;
// WifiReceiver wifiReceiver;
public NetChoice(Context context)
{
this.context=context;
wifiManager=(WifiManager) context.getSystemService(Context.WIFI_SERVICE);
// wifiReceiver=new WifiReceiver();
// context.registerReceiver(wifiReceiver, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));
}
/**
* 判断当前网络连接状态
* 0、无连接
* 1、3G
* 2、WIFI
* @return
* @author 2011-08-16
*/
public int checkNetworkInfo()
{
int netType=0;
ConnectivityManager conMan=(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
State mobile=conMan.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState();
State wifi=conMan.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState();
if (mobile==State.CONNECTED||mobile==State.CONNECTING)
{
netType=1;
}
if (wifi==State.CONNECTED||wifi==State.CONNECTING)
{
netType=2;
}
Log.d("carWifi", wifi+"---wifi--state--mobile--"+mobile+"---type--"+netType);
return netType;
}
/**
* WIFI勾选 开关
*
* @author 2011-08-16
*/
public void openWifi()
{
boolean b=false;
if (!wifiManager.isWifiEnabled())
{
b=wifiManager.setWifiEnabled(true);
Log.d("carWifi", "---------open wifi --"+b);
}else {
Log.d("carWifi", "-----wifi was open!!--");
}
}
public void closeWifi()
{
if (wifiManager.isWifiEnabled())
{
wifiManager.setWifiEnabled(false);
}
}
/**
* 添加WIFI信息
* @param wifiList 搜索到的wifi集合
* @param wifiSSID wifi名称
* @param pwd wifi密码
* @return wifiId
* @author 2011-08-16
*/
public int addWifiConfig(List<ScanResult> wifiList,String wifiSSID,String pwd)
{
int wifiId=-1;
if (wifiList!=null)
{
for (int i = 0; i < wifiList.size(); i++)
{
ScanResult sr = wifiList.get(i);
if (sr.SSID.equals(wifiSSID))
{
WifiConfiguration wc = new WifiConfiguration();
wc.SSID = "\""+wifiSSID+"\"";
wc.preSharedKey = "\""+pwd+"\"";
wifiId=wifiManager.addNetwork(wc);
if (wifiId!=-1)
{
return wifiId;
}
}
}
}
return wifiId;
}
/**
* 连接wifi
* @param wifiId
* @return
* @author 2011-08-16
*/
public boolean connectWifi(int wifiId)
{
for (int i = 0; i < wifiManager.getConfiguredNetworks().size(); i++)
{
WifiConfiguration wc =wifiManager.getConfiguredNetworks().get(i);
if (wc.networkId==wifiId)
{
return wifiManager.enableNetwork(wc.networkId, true);
}
}
return false;
}
/**
* 扫描wifi热点
* @return wifiList
* @author 2011-08-16
*/
public List<ScanResult> scanWifi()
{
// wifiManager.startScan();
return wifiManager.getScanResults();
}
// class WifiReceiver extends BroadcastReceiver{
//
// @Override
// public void onReceive(Context context, Intent intent)
// {
// // TODO Auto-generated method stub
// wifiList=wifiManager.getScanResults();
// }
//
// }
}
<!-- 以下是使用wifi访问网络所需要的权限-->
<uses-permissionandroid:name="android.permission.CHANGE_NETWORK_STATE">
</uses-permission> //修改网络状态的权限
<uses-permissionandroid:name="android.permission.CHANGE_WIFI_STATE">
</uses-permission> //修改wifi状态的权限
<uses-permissionandroid:name="android.permission.ACCESS_NETWORK_STATE">
</uses-permission> //访问网络权限
<uses-permissionandroid:name="android.permission.ACCESS_WIFI_STATE">
</uses-permission> //访问wifi权限
<uses-permissionandroid:name="android.permission.CHANGE_NETWORK_STATE">
</uses-permission> //修改网络状态的权限
<uses-permissionandroid:name="android.permission.CHANGE_WIFI_STATE">
</uses-permission> //修改wifi状态的权限
<uses-permissionandroid:name="android.permission.ACCESS_NETWORK_STATE">
</uses-permission> //访问网络权限
<uses-permissionandroid:name="android.permission.ACCESS_WIFI_STATE">
</uses-permission> //访问wifi权限
<uses-permission android:name="android.permission.MODIFY_PHONE_STATE"></uses-permission>
