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先进行WiFi权限的声明
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!-- 获取WiFi状态 --
uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /
uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /
!-- api = Android29调用setWifiEnabled --
uses-permission android:name="android.permission.CHANGE_WIFI_STATE" /
!-- 定位权限（api = 23 用于 WIFI扫描）--
uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /
uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /
注意：ACCESS_FINE_LOCATION和ACCESS_COARSE_LOCATION是危险级权限需要使用中还需要动态申请，申请其中一个即可。
WifiManager mWifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
if (Build.VERSION.SDK_INT =Build.VERSION_CODES.R) {
Intent panelIntent =new Intent(Settings.Panel.ACTION_WIFI);
startActivityForResult(panelIntent,null);
}else{ mWifiManager.setWifiEnabled(!isEnable);}
可以通过监听系统广播来了解WiFi状态。
WIFI_STATE_CHANGED_ACTION：WiFi开关状态；
SCAN_RESULTS_AVAILABLE_ACTION：WiFi列表变化；
RSSI_CHANGED_ACTION：WiFi信号强度变化。
IntentFilter mFilter =new IntentFilter();
mFilter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION);
mFilter.addAction(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION);
mFilter.addAction(WifiManager.RSSI_CHANGED_ACTION);
mReceiver =new BroadcastReceiver() {
@Override
public void onReceive(Context context,Intent intent) {
handleEvent(intent);
}
};
registerReceiver(mReceiver, mFilter);
private void handleEvent(Intent intent) {
String action = intent.getAction();
if (WifiManager.WIFI_STATE_CHANGED_ACTION.equals(action)) {
final int wifiState =mWifiManager.getWifiState();
if(wifiState ==WifiManager.WIFI_STATE_ENABLED){
postDelayed(()-{mRefreshLayout.autoRefresh();},1000);
}
}else if (WifiManager.SCAN_RESULTS_AVAILABLE_ACTION.equals(action)) {
}else if (WifiManager.RSSI_CHANGED_ACTION.equals(action)) {
if(System.currentTimeMillis() -mLastUpateWifiRssiTime 1000){//刷新太快
return;
}
}
updateWifiChange();
}
切记：wifistate切换到WifiManager.WIFI_STATE_ENABLED，mWifiManager.isWifiEnabled()需要有个等待时间切换。
3的基础上解析广播应答
private void updateWifiChange() {
final int wifiState =mWifiManager.getWifiState();
switch (wifiState) {
case WifiManager.WIFI_STATE_ENABLED:
ArrayListresults = (ArrayList)mWifiManager.getScanResults();
updateApListView(results);
mWlanSb.setChecked(mWifiManager.isWifiEnabled() );
break;
case WifiManager.WIFI_STATE_ENABLING:
break;
case WifiManager.WIFI_STATE_DISABLING:
mAdapter.clearData();
mWlanSb.setChecked(mWifiManager.isWifiEnabled() );
break;
case WifiManager.WIFI_STATE_DISABLED:
break;
}
}
您好，连接隐藏wifi的方法：
1、打开设置，进入WIFI开关界面
2、点击WIFI链接，选择要链接的WIFI.
3、选择下面的其他链接方式。
4、输入隐藏的WIFI名称，就是路由器发出来信号的名字。
5、点击安全性选择加密方式，一般加密方式都是WPA/WPA2PSK。
6、输入WIFI的密码，点击确定即可连接该wifi网络了。
public class WifiAutoConnectManager {
private static final String TAG = WifiAutoConnectManager.class.getSimpleName();
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 WifiAutoConnectManager(WifiManager wifiManager) { this.wifiManager = wifiManager; }
// 提供一个外部接口，传入要连接的无线网 public void connect(String ssid, String password, WifiCipherType type) { Thread thread = new Thread(new ConnectRunnable(ssid, password, type)); thread.start(); }
// 查看以前是否也配置过这个网络 private WifiConfiguration isExsits(String SSID) { ListWifiConfiguration existingConfigs = wifiManager.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 + "\""; // nopass if (Type == WifiCipherType.WIFICIPHER_NOPASS) { config.wepKeys[0] = ""; config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE); config.wepTxKeyIndex = 0; } // wep if (Type == WifiCipherType.WIFICIPHER_WEP) { if (!TextUtils.isEmpty(Password)) { if (isHexWepKey(Password)) { config.wepKeys[0] = Password; } else { config.wepKeys[0] = "\"" + Password + "\""; } } config.allowedAuthAlgorithms.set(AuthAlgorithm.OPEN); config.allowedAuthAlgorithms.set(AuthAlgorithm.SHARED); config.allowedKeyManagement.set(KeyMgmt.NONE); config.wepTxKeyIndex = 0; } // wpa if (Type == WifiCipherType.WIFICIPHER_WPA) { config.preSharedKey = "\"" + Password + "\""; config.hiddenSSID = true; config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN); config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP); config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK); config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP); // 此处需要修改否则不能自动重联 // config.allowedProtocols.set(WifiConfiguration.Protocol.WPA); config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP); config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP); config.status = WifiConfiguration.Status.ENABLED; } return config; }
// 打开wifi功能 private boolean openWifi() { boolean bRet = true; if (!wifiManager.isWifiEnabled()) { bRet = wifiManager.setWifiEnabled(true); } return bRet; }
class ConnectRunnable implements Runnable { private String ssid;
private String password;
private WifiCipherType type;
public ConnectRunnable(String ssid, String password, WifiCipherType type) { this.ssid = ssid; this.password = password; this.type = type; }
@Override public void run() { // 打开wifi openWifi(); // 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毫秒检测…… Thread.sleep(100); } catch (InterruptedException ie) { } }
WifiConfiguration wifiConfig = createWifiInfo(ssid, password, type); // if (wifiConfig == null) { Log.d(TAG, "wifiConfig is null!"); return; }
WifiConfiguration tempConfig = isExsits(ssid);
if (tempConfig != null) { wifiManager.removeNetwork(tempConfig.networkId); }
int netID = wifiManager.addNetwork(wifiConfig); boolean enabled = wifiManager.enableNetwork(netID, true); Log.d(TAG, "enableNetwork status enable=" + enabled); boolean connected = wifiManager.reconnect(); Log.d(TAG, "enableNetwork connected=" + connected); } }
private static boolean isHexWepKey(String wepKey) { final int len = wepKey.length();
// WEP-40, WEP-104, and some vendors using 256-bit WEP (WEP-232?) if (len != 10 len != 26 len != 58) { return false; }
return isHex(wepKey); }
private static boolean isHex(String key) { for (int i = key.length() - 1; i = 0; i--) { final char c = key.charAt(i); if (!(c = '0' c = '9' || c = 'A' c = 'F' || c = 'a' c = 'f')) { return false; } }
return true; }}
ACCESS_WIFI_STATE权限可以获取使用Wi-Fi等WLAN无线网络，加入android.permission.ACCESS_WIFI_STATE这句.
CHANGE_WIFI_STATE是改变WLAN状态的开关，如果打开或关闭Wi-Fi必需加入android.permission.CHANGE_WIFI_STATE的声明.
[img]这里用到的手机型号为魅族M6120，其中的具体步骤如下：
1、打开手机的设置界面，需要选择无线网络这一项。
2、在无线网络中找到已经连接的WIFI网络，并点击旁边的详情按钮。
3、会进入WIFI的详情页面，选择底部的代理设置项目。
4、等来到代理设置窗口以后，点击里面的无选项。
5、下一步，在菜单中选择手动这一项。
6、这个时候可以填写相关的服务器和端口。
7、这样一来通过点击右上角的保存按钮，即可实现Android开发使用代码配置手机wifi的pac地址。