Android 常见的工具类
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/** * Wifi 管理类 * * @author Administrator * 使用方法 * WifiManagerUtils wifiManager = new WifiManagerUtils(context); if (wifiManager.isConnection()) { Intent intent = new Intent(context, AseoZdpUpdateService.class); context.startService(intent); } * */ public class WifiManagerUtils { private WifiManager mWifiManager; private WifiInfo mWifiInfo; private List<ScanResult> mWifiList; private List<WifiConfiguration> mWifiConfiguration; public WifiManagerUtils(Context context) { this.mWifiManager = ((WifiManager) context.getSystemService("wifi")); this.mWifiInfo = this.mWifiManager.getConnectionInfo(); } public boolean isConnection() { this.mWifiInfo = this.mWifiManager.getConnectionInfo(); return (this.mWifiManager.isWifiEnabled()) && (this.mWifiInfo != null) && (this.mWifiInfo.getBSSID() != null) && (this.mWifiInfo.getIpAddress() != 0); } public boolean isConnection(String ssid) { this.mWifiInfo = this.mWifiManager.getConnectionInfo(); if ((!this.mWifiManager.isWifiEnabled()) || (this.mWifiInfo == null)) return false; String string = this.mWifiInfo.getSSID(); return string.contains(ssid); } public int checkState() { return this.mWifiManager.getWifiState(); } public List<WifiConfiguration> getConfiguration() { return this.mWifiConfiguration; } public void connectConfiguration(int index) { if (index > this.mWifiConfiguration.size()) { return; } this.mWifiManager .enableNetwork( ((WifiConfiguration) this.mWifiConfiguration.get(index)).networkId, true); } public void startScan() { this.mWifiManager.startScan(); this.mWifiConfiguration = this.mWifiManager.getConfiguredNetworks(); } public List<ScanResult> getWifiList() { this.mWifiList = this.mWifiManager.getScanResults(); return this.mWifiList; } public StringBuilder lookUpScan() { StringBuilder stringBuilder = new StringBuilder(); for (int i = 0; i < this.mWifiList.size(); i++) { stringBuilder .append("Index_" + new Integer(i + 1).toString() + ":"); stringBuilder.append(((ScanResult) this.mWifiList.get(i)) .toString()); stringBuilder.append("/n"); } return stringBuilder; } public String getMacAddress() { return this.mWifiInfo == null ? "NULL" : this.mWifiInfo.getMacAddress(); } public String getBSSID() { return this.mWifiInfo == null ? "NULL" : this.mWifiInfo.getBSSID(); } public String getSSID() { return this.mWifiInfo == null ? "NULL" : this.mWifiInfo.getSSID(); } public int getIPAddress() { return this.mWifiInfo == null ? 0 : this.mWifiInfo.getIpAddress(); } public int getNetworkId() { return this.mWifiInfo == null ? 0 : this.mWifiInfo.getNetworkId(); } public String getWifiInfo() { return this.mWifiInfo == null ? "NULL" : this.mWifiInfo.toString(); } public void disconnectWifi(int netId) { this.mWifiManager.disableNetwork(netId); this.mWifiManager.disconnect(); } public String Connect(String SSID, String Password, WifiCipherType type) { if (!this.mWifiManager.isWifiEnabled()) { return null; } this.mWifiInfo = this.mWifiManager.getConnectionInfo(); String ssidString = getSSID(); if ((ssidString != null) && (ssidString.contains("\""))) { ssidString = ssidString.split("\"")[1]; } WifiConfiguration oldConfig = IsExsits(ssidString); if (oldConfig != null) { disconnectWifi(oldConfig.networkId); } WifiConfiguration tempConfig = CreateWifiInfo(SSID, Password, type); int tempID = this.mWifiManager.addNetwork(tempConfig); boolean ret = this.mWifiManager.enableNetwork(tempID, true); this.mWifiManager.reconnect(); return ssidString; } public boolean RemoveWifiConfig(String ssid) { WifiConfiguration Config = IsExsits(ssid); if (Config == null) { return false; } this.mWifiManager.disableNetwork(Config.networkId); this.mWifiManager.removeNetwork(Config.networkId); return true; } public boolean Connect(String ssid) { if ((ssid != null) && (ssid.contains("\""))) { ssid = ssid.split("\"")[1]; } WifiConfiguration tempConfig = IsExsits(ssid); if (tempConfig != null) { boolean bRet = this.mWifiManager.enableNetwork( tempConfig.networkId, true); this.mWifiManager.reconnect(); } return true; } public WifiConfiguration IsExsits(String SSID) { List existingConfigs = this.mWifiManager.getConfiguredNetworks(); for (WifiConfiguration existingConfig : existingConfigs) { if (existingConfig.SSID.equals("\"" + SSID + "\"")) { return existingConfig; } } return null; } 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.hiddenSSID = true; config.allowedKeyManagement.set(0); } else if (type == WifiCipherType.WIFICIPHER_WPA) { config.preSharedKey = ("\"" + Password + "\""); config.hiddenSSID = true; config.allowedAuthAlgorithms.set(0); config.allowedGroupCiphers.set(2); config.allowedKeyManagement.set(1); config.allowedPairwiseCiphers.set(1); config.allowedGroupCiphers.set(3); config.allowedPairwiseCiphers.set(2); config.status = 2; } else if (type == WifiCipherType.WIFICIPHER_WEP) { config.hiddenSSID = true; config.wepKeys[0] = ("\"" + Password + "\""); config.allowedAuthAlgorithms.set(1); config.allowedGroupCiphers.set(3); config.allowedGroupCiphers.set(2); config.allowedGroupCiphers.set(0); config.allowedGroupCiphers.set(1); config.allowedKeyManagement.set(0); config.wepTxKeyIndex = 0; } return config; } public static enum WifiCipherType { WIFICIPHER_WEP, WIFICIPHER_WPA, WIFICIPHER_NOPASS, WIFICIPHER_INVALID; } }