Question

我们正在尝试以编程方式切换ON wifi热点，但有时它会进入无限循环并且不会打开但大部分都可以正常工作。这是它挂起的行“while（！（Boolean）isWifiApEnabledMethod.invoke（wifiManager））{ 了Thread.sleep（500）; };” 整个代码放在下面。这只是Android 5.0 / 5.1设备的问题。任何输入都将受到赞赏。

[hadoop@ip-x-x-x-x ~]$ ls -la /etc/spark/conf/
total 64
drwxr-xr-x 2 root root 4096 Oct  4 08:08 .
drwxr-xr-x 3 root root 4096 Oct  4 07:41 ..
-rw-r--r-- 1 root root  987 Jul 26 21:56 docker.properties.template
-rw-r--r-- 1 root root 1105 Jul 26 21:56 fairscheduler.xml.template
-rw-r--r-- 1 root root 2373 Oct  4 07:42 hive-site.xml
-rw-r--r-- 1 root root 2024 Oct  4 07:42 log4j.properties
-rw-r--r-- 1 root root 2025 Jul 26 21:56 log4j.properties.template
-rw-r--r-- 1 root root 7239 Oct  4 07:42 metrics.properties
-rw-r--r-- 1 root root 7239 Jul 26 21:56 metrics.properties.template
-rw-r--r-- 1 root root  865 Jul 26 21:56 slaves.template
-rw-r--r-- 1 root root 1292 Jul 26 21:56 spark-defaults.conf.template
-rwxr-xr-x 1 root root 1563 Oct  4 07:42 spark-env.sh
-rwxr-xr-x 1 root root 3861 Jul 26 21:56 spark-env.sh.template

我们进一步探索，当我们使用这种方法时，我们会获得更好的行为

    WifiManager wifiManager = (WifiManager)getActivity().getApplicationContext().getSystemService   (Context.WIFI_SERVICE);

    //If Wifi is ON then switch it OFF
    if (wifiManager.isWifiEnabled()) {
        wifiManager.setWifiEnabled(false);
    }

    WifiConfiguration netConfig = new WifiConfiguration();
    Random random = new Random();
    int iRandomKey = random.nextInt(65536);

    netConfig.SSID = "TestHotspot";
    netConfig.status = WifiConfiguration.Status.ENABLED;
    netConfig.priority = 40;
    //hiding SSID,
    netConfig.hiddenSSID = true;
    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.WEP40);
    netConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP104);
    netConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
    netConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
    netConfig.preSharedKey = "testpassword";

    final String RingOfFire_Ssid = netConfig.SSID;
    final String RingOfFire_password = netConfig.preSharedKey;

    try {
        Method setWifiApMethod = wifiManager.getClass().getMethod("setWifiApEnabled",   WifiConfiguration.class, boolean.class);
        boolean apstatus = (Boolean) setWifiApMethod.invoke(wifiManager, netConfig, true);
        Log.d("ConnectWIFI:", "apstatus" + ":" + apstatus);

        Method isWifiApEnabledMethod = wifiManager.getClass().getMethod("isWifiApEnabled");
        while (!(Boolean) isWifiApEnabledMethod.invoke(wifiManager)) {
            Thread.sleep(500);
        };

        Method getWifiApConfigurationMethod = wifiManager.getClass().getMethod("getWifiApConfiguration");
        netConfig = (WifiConfiguration) getWifiApConfigurationMethod.invoke(wifiManager);

        Log.d("ConnectWIFI:", netConfig.SSID + ":" + netConfig.preSharedKey + ":" + "Hotspot");

    } catch (Exception e) {
        Log.e(this.getClass().toString(), "", e);
    }

由于

有时Wifi Hotspot没有开启Android 5.1设备

0 个答案: