getWifiSsid

GetWifiSsid.java

/**
   * 获取当前连接到的WiFi名称
   *
   * 注意：当“APILevel >=17”时，返回的字符串会多一对双引号
   * https://code.google.com/p/android/issues/detail?id=40144
   * http://stackoverflow.com/questions/13563032/jelly-bean-issue-wifimanager-getconnectioninfo-getssid-extra
   */
  public String getWifiSsid() {
    String ssid = null;
    try {
      WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
      WifiInfo wifiInfo = wifiManager.getConnectionInfo();
      ssid = wifiInfo.getSSID();
      if (Build.VERSION.SDK_INT >= 17 && ssid != null && ssid.startsWith("\"")
          && ssid.endsWith("\"")) {
        ssid = ssid.substring(1, ssid.length() - 1);
      }

    } catch (Exception e) {
    }

    return ssid;
  }