Android(安卓)AP模式创建有/无密码热点

1、用到的类（可以不用反射） WifiManager：控制wifi的状态监测和打开、关闭。
WifiConfiguration：配置wifi的用户名、密码和加密方式等。 KeyMgmt：设置加密的方式，并设置到config中
2、test.java

WifiManager mWifiManager = (WifiManager) getSystemService(WIFI_SERVICE);

WifiConfiguration mWifiConfig = mWifiManager.getWifiApConfiguration();

WifiInfo wifiInfo = mWifiManager.getConnectionInfo();

//获取AP模式连接设备数量

List cdl = mWifiManager.getApConnectedStas();

Log.d(TAG, "AP Count ===" +""+cdl.size());

mWifiConfig.allowedAuthAlgorithms.clear();
mWifiConfig.allowedGroupCiphers.clear();
mWifiConfig.allowedKeyManagement.clear();
mWifiConfig.allowedPairwiseCiphers.clear();
mWifiConfig.allowedProtocols.clear();
int wifi_ap_state = mWifiManager.getWifiApState();
if((wifi_ap_state == WifiManager.WIFI_AP_STATE_ENABLING) || (wifi_ap_state == WifiManager.WIFI_AP_STATE_ENABLED)){
mWifiManager.setWifiApEnabled(null, false);//关闭wifi的AP模式
}
//设置NONE = 0模式 mWifiConfig.SSID = "none";
mWifiConfig.wepKeys[0] = "";
mWifiConfig.allowedKeyManagement.set(KeyMgmt.NONE);
mWifiConfig.wepTxKeyIndex = 0;
mWifiManager.setWifiApEnabled(mWifiConfig, true);

//设置WPA PSK = 1模式
mWifiConfig.SSID = "wpa";
mWifiManager.preSharedKey = "88888888";
mWifiConfig.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN);
mWifiConfig.allowedProtocols.set(WifiConfiguration.Protocol.RSN);
mWifiConfig.allowedProtocols.set(WifiConfiguration.Protocol.WPA);
mWifiConfig.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
mWifiConfig.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);
mWifiConfig.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);
mWifiConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
mWifiConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
mWifiManager.setWifiApEnabled(mWifiConfig, true);

//设置WPA2 PSK = 2模式
mWifiConfig.SSID = "wpa2"; mWifiConfig.preSharedKey = "12345678"; mWifiConfig.allowedKeyManagement.set(KeyMgmt.WPA2_PSK);
mWifiConfig.allowedAuthAlgorithms.set(AuthAlgorithm.OPEN);
mWifiManager.setWifiApEnabled(mWifiConfig, true);

3.权限

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