android wifi开发 连接wifi 创建AP

首先上图看首先效果

最近也是在玩wifi方面的开发，这里给出这个Demo的实现方法，主要的都已经实现了，wifi的代码连接，里面用到了pullRefreshListview下拉可以刷新wif的信息，然后点击wifi就会弹出输入密码对话框，然后就是一个共享WIFI就是共享手机网络，手机一秒变热点的功能。好了这里主要用到的就是我的这一个类，虽然看了网上很多代码不过也不能完全相信，这个代码是我自己测试通过的。最主要的就是这个类。

**
 * wifi 连接和创建AP的类
 * @author bobo
 *
 */
public class WifiConnect {

	WifiManager wifiManager;

	// 定义几种加密方式，一种是WEP，一种是WPA，还有没有密码的情况
	public enum WifiCipherType {
		WIFICIPHER_WEP, WIFICIPHER_WPA, WIFICIPHER_NOPASS, WIFICIPHER_INVALID
	}

	// 构造函数
	public WifiConnect(WifiManager wifiManager) {
		this.wifiManager = wifiManager;
	}

	/**
	 * 开启wifi AP
	 * @param mSSID
	 * @param mPasswd
	 */
	public void stratWifiAp(String mSSID, String mPasswd) {
		Method method1 = null;
		try {
			method1 = wifiManager.getClass().getMethod("setWifiApEnabled", WifiConfiguration.class, boolean.class);
			WifiConfiguration netConfig = new WifiConfiguration();
			netConfig.SSID = mSSID;
			netConfig.preSharedKey = mPasswd;
			netConfig.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN);
			netConfig.allowedProtocols.set(WifiConfiguration.Protocol.RSN);
			netConfig.allowedProtocols.set(WifiConfiguration.Protocol.WPA);
			netConfig.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
			netConfig.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);
			netConfig.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);
			netConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
			netConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);

			method1.invoke(wifiManager, netConfig, true);

		} catch (IllegalArgumentException e) {
			// TODO Auto-generated catch block  
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			// TODO Auto-generated catch block  
			e.printStackTrace();
		} catch (InvocationTargetException e) {
			// TODO Auto-generated catch block  
			e.printStackTrace();
		} catch (SecurityException e) {
			// TODO Auto-generated catch block  
			e.printStackTrace();
		} catch (NoSuchMethodException e) {
			// TODO Auto-generated catch block  
			e.printStackTrace();
		}
	}

	/**
	 * 关闭wifi AP共享
	 * @param wifiManager
	 */
	public void closeWifiAp() {
		//if (wifiManager.isWifiEnabled())
		{
			try {
				Method method = wifiManager.getClass().getMethod("getWifiApConfiguration");
				method.setAccessible(true);
				WifiConfiguration config = (WifiConfiguration) method.invoke(wifiManager);
				Method method2 = wifiManager.getClass().getMethod("setWifiApEnabled", WifiConfiguration.class,
						boolean.class);
				method2.invoke(wifiManager, config, false);
			} catch (NoSuchMethodException e) {
				// TODO Auto-generated catch block  
				e.printStackTrace();
			} catch (IllegalArgumentException e) {
				// TODO Auto-generated catch block  
				e.printStackTrace();
			} catch (IllegalAccessException e) {
				// TODO Auto-generated catch block  
				e.printStackTrace();
			} catch (InvocationTargetException e) {
				// TODO Auto-generated catch block  
				e.printStackTrace();
			}
		}
	}

	// 打开wifi功能
	private boolean OpenWifi() {
		boolean bRet = true;
		if (!wifiManager.isWifiEnabled()) {
			bRet = wifiManager.setWifiEnabled(true);
		}
		return bRet;
	}

	// 提供一个外部接口，传入要连接的无线网
	public boolean Connect(String SSID, String Password, WifiCipherType Type) {
		if (!this.OpenWifi()) {
			return false;
		}
		// 开启wifi功能需要一段时间(我在手机上测试一般需要1-3秒左右)，所以要等到wifi
		// 状态变成WIFI_STATE_ENABLED的时候才能执行下面的语句
		while (wifiManager.getWifiState() == WifiManager.WIFI_STATE_ENABLING) {
			try {
				// 为了避免程序一直while循环，让它睡个100毫秒在检测……
				Thread.currentThread();
				Thread.sleep(100);
			} catch (InterruptedException ie) {
			}
		}

		WifiConfiguration wifiConfig = this.CreateWifiInfo(SSID, Password, Type);
		//
		if (wifiConfig == null) {
			return false;
		}

		WifiConfiguration tempConfig = this.IsExsits(SSID);
		if (tempConfig != null) {
			wifiManager.removeNetwork(tempConfig.networkId);
		}
		int netID = wifiManager.addNetwork(wifiConfig);
		boolean bRet = wifiManager.enableNetwork(netID, true);
		return bRet;
	}

	// 查看以前是否也配置过这个网络
	private WifiConfiguration IsExsits(String SSID) {
		List existingConfigs = wifiManager.getConfiguredNetworks();
		for (WifiConfiguration existingConfig : existingConfigs) {
			if (existingConfig.SSID.equals("\"" + SSID + "\"")) {
				return existingConfig;
			}
		}
		return null;
	}
/**
 * 配置连接
 * @param SSID
 * @param Password
 * @param Type
 * @return
 */
	private WifiConfiguration CreateWifiInfo(String SSID, String Password, WifiCipherType Type) {
		WifiConfiguration config = new WifiConfiguration();
		config.allowedAuthAlgorithms.clear();
		config.allowedGroupCiphers.clear();
		config.allowedKeyManagement.clear();
		config.allowedPairwiseCiphers.clear();
		config.allowedProtocols.clear();
		config.SSID = "\"" + SSID + "\"";
		if (Type == WifiCipherType.WIFICIPHER_NOPASS) {
			config.wepKeys[0] = "";
			config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
			config.wepTxKeyIndex = 0;
		}
		if (Type == WifiCipherType.WIFICIPHER_WEP) {
			//	config.preSharedKey = "\"" + Password + "\"";
			config.hiddenSSID = true;
			config.wepKeys[0] = "\"" + Password + "\"";
			config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.SHARED);
			config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
			config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
			config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40);
			config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP104);
			config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
			config.wepTxKeyIndex = 0;
		}
		if (Type == WifiCipherType.WIFICIPHER_WPA) {
			config.preSharedKey = "\"" + Password + "\"";
			config.status = WifiConfiguration.Status.ENABLED;
		} else {
			return null;
		}
		return config;
	}

}

这里贴出下载的连接http://download.csdn.net/detail/shengbo1992/7453479