Android WiFi热点怎么开发

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创建热点

1、根据加密类型、密码、是否隐藏等参数来创建热点

 static WifiConfiguration createWifiConfig(String SSID, @WifiSecurityType int wifiCipherType, String password, boolean hiddenSSID) {    WifiConfiguration wifiConfiguration = new WifiConfiguration();    wifiConfiguration.SSID = convertToQuotedString(SSID);    wifiConfiguration.hiddenSSID=hiddenSSID;//是否隐藏热点true=隐藏,如果隐藏需要其他设备手动添加网络    switch (wifiCipherType) {      case WifiSecurityType.SECURITY_NONE:        wifiConfiguration.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);        break;      case WifiSecurityType.SECURITY_WEP:        wifiConfiguration.allowedKeyManagement.set(KeyMgmt.NONE);        wifiConfiguration.allowedAuthAlgorithms.set(AuthAlgorithm.OPEN);        wifiConfiguration.allowedAuthAlgorithms.set(AuthAlgorithm.SHARED);        if (!TextUtils.isEmpty(password)) {          int length = password.length();          // WEP-40, WEP-104, and 256-bit WEP (WEP-232?)          if ((length == 10 || length == 26 || length == 58)              && password.matches("[0-9A-Fa-f]*")) {            wifiConfiguration.wepKeys[0] = password;          } else {            wifiConfiguration.wepKeys[0] = '"' + password + '"';          }        }        break;      case WifiSecurityType.SECURITY_WPA_PSK:        wifiConfiguration.allowedKeyManagement.set(KeyMgmt.WPA_PSK);        if (!TextUtils.isEmpty(password)) {          if (password.matches("[0-9A-Fa-f]{64}")) {            wifiConfiguration.preSharedKey = password;          } else {            wifiConfiguration.preSharedKey = '"' + password + '"';          }        }        break;      case WifiSecurityType.SECURITY_WPA_EAP:        wifiConfiguration.allowedKeyManagement.set(KeyMgmt.WPA_EAP);        wifiConfiguration.allowedKeyManagement.set(KeyMgmt.IEEE8021X);        wifiConfiguration.enterpriseConfig = new WifiEnterpriseConfig();        int eapMethod = 0;        int phase2Method = 0;        wifiConfiguration.enterpriseConfig.setEapMethod(eapMethod);        wifiConfiguration.enterpriseConfig.setPhase2Method(phase2Method);        if (!TextUtils.isEmpty(password)) {          wifiConfiguration.enterpriseConfig.setPassword(password);        }        break;      default:        break;    }    return wifiConfiguration;  }

然后调用WifiManager的setWifiApEnabled方法来设置wifiConfiguration，因为是隐藏的，需要通过反射：

 try {      Method method = mWifManager.getClass().getMethod(          "setWifiApEnabled", WifiConfiguration.class, Boolean.TYPE);      boolean enable = (Boolean) method.invoke(mWifManager, config, true);      if (enable) {        Log.d("WiFi", "热点已开启");      } else {        Log.d("WiFi", "创建热点失败");      }    } catch (Exception e) {      e.printStackTrace();    }

关闭热点

关闭热点比较简单，也是用上面的方法，第二个参数传false就行了：

public void closeWifiAp() {    try {      Method method = mWifiManager.getClass().getMethod("setWifiApEnabled",   WifiConfiguration.class, boolean.class);      method.invoke(mWifiManager, null, false);    } catch (Exception e) {      e.printStackTrace();    }  }

监听热点状态

热点的状态可以通过广播的方式来监听：

 public static final String WIFI_AP_STATE_CHANGED_ACTION =    "android.net.wifi.WIFI_AP_STATE_CHANGED";

不过这个变量是隐藏的，只能直接通过值来注册广播：

  IntentFilter filter = new IntentFilter();    filter.addAction("android.net.wifi.WIFI_AP_STATE_CHANGED");

然后在广播中获取state：

int state = intent.getIntExtra("wifi_state", 0);

wifi热点有如下几种状态：

#WIFI_AP_STATE_DISABLED  #WIFI_AP_STATE_DISABLING#WIFI_AP_STATE_ENABLED#WIFI_AP_STATE_ENABLING#WIFI_AP_STATE_FAILED

其他API：

获取WiFI热点当前状态，返回值就是上面五种状态：

public int getWifiApState()

判断WiFi热点是否打开：

public boolean isWifiApEnabled()

获取当前wifi热点的WifiConfiguration：

public WifiConfiguration getWifiApConfiguration()

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