Wifi网络连接

package com.wifi;

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;
	}
	public List<WifiConfiguration> getConnectionWifi(){
		return wifiManager.getConfiguredNetworks();
	}

	public boolean addWifiConnection(String wifiSSID,String pwd){
		boolean isConnection = false;
		WifiConfiguration wc = new WifiConfiguration();
		wc.SSID = "\"" + wifiSSID + "\"";
		wc.preSharedKey = "\"" + pwd + "\"";
		int wifiId = wifiManager.addNetwork(wc);
		System.out.println("wifiId:"+wifiId);
		if (wifiId != -1) {
			 isConnection = wifiManager.enableNetwork(wifiId, true);
		}
		return isConnection;
	}

	/**
	 * 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();
	// }
	//
	// }
}