创建热点的方法
private void stratWifiAp(String mSSID, String mPasswd) {
Method method1 = null;
try {
method1 = mWifiManager.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(mWifiManager, netConfig, true);
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (SecurityException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
}
/**
* 检查是否开启wifi
*
* @return
*/
public boolean isWifiApEnabled() {
try {
Method method = mWifiManager.getClass().getMethod("isWifiApEnabled");
method.setAccessible(true);
return (Boolean) method.invoke(mWifiManager);
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
/**
* 关闭热点
*/
public void closeWifiAp() {
WifiManager wifiManager = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);
if (isWifiApEnabled()) {
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) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}
判断wifi是否打开
public boolean isWifiActive(){
ConnectivityManager mConnectivity =(ConnectivityManager)
getSystemService(Context.CONNECTIVITY_SERVICE);
if(mConnectivity != null){
NetworkInfo[] infos = mConnectivity.getAllNetworkInfo();
if(infos != null){
for(NetworkInfo ni: infos){
if("WIFI".equals(ni.getTypeName()) && ni.isConnected())
return true;
}
}
}
return false;
}
获得热点手机IP地址
DhcpInfo info = wifiManager.getDhcpInfo();
int iii = info.serverAddress;
String ip=intToIp(iii);
private String intToIp(int i) {
return (i & 0xFF) + "." + ((i >> 8) & 0xFF) + "." + ((i >> 16) & 0xFF) + "." + ((i >> 24) & 0xFF);
}
开热点的手机获得其他连接手机IP的方法
private ArrayList<String> getConnectedIP() {
ArrayList<String> connectedIP = new ArrayList<String>();
try {
BufferedReader br = new BufferedReader(new FileReader(
"/proc/net/arp"));
String line;
while ((line = br.readLine()) != null) {
String[] splitted = line.split(" +");
if (splitted != null && splitted.length >= 4) {
String ip = splitted[0];
if (!ip.equalsIgnoreCase("IP"))
connectedIP.add(ip);
}
}
} catch (Exception e) {
e.printStackTrace();
}
return connectedIP;
}
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