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      <article class="main-content">

        <section class="section">
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            <h1>NetworkReachabilityManager</h1>
              <div class="declaration">
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                  <pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">class</span> <span class="kt">NetworkReachabilityManager</span></code></pre>

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            <p>The <code>NetworkReachabilityManager</code> class listens for reachability changes of hosts and addresses for both WWAN and
WiFi network interfaces.</p>

<p>Reachability can be used to determine background information about why a network operation failed, or to retry
network requests when a connection is established. It should not be used to prevent a user from initiating a network
request, as it&rsquo;s possible that an initial request may be required to establish reachability.</p>

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                    <code>
                    <a name="/s:9Alamofire26NetworkReachabilityManagerC0bC6StatusO"></a>
                    <a name="//apple_ref/swift/Enum/NetworkReachabilityStatus" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire26NetworkReachabilityManagerC0bC6StatusO">NetworkReachabilityStatus</a>
                    </code>
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                    <div class="pointer-container"></div>
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                      <div class="abstract">
                        <p>Defines the various states of network reachability.</p>

<ul>
<li>unknown:      It is unknown whether the network is reachable.</li>
<li>notReachable: The network is not reachable.</li>
<li>reachable:    The network is reachable.</li>
</ul>

                        <a href="../Classes/NetworkReachabilityManager/NetworkReachabilityStatus.html" class="slightly-smaller">See more</a>
                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">enum</span> <span class="kt">NetworkReachabilityStatus</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire26NetworkReachabilityManagerC14ConnectionTypeO"></a>
                    <a name="//apple_ref/swift/Enum/ConnectionType" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire26NetworkReachabilityManagerC14ConnectionTypeO">ConnectionType</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Defines the various connection types detected by reachability flags.</p>

<ul>
<li>ethernetOrWiFi: The connection type is either over Ethernet or WiFi.</li>
<li>wwan:           The connection type is a WWAN connection.</li>
</ul>

                        <a href="../Classes/NetworkReachabilityManager/ConnectionType.html" class="slightly-smaller">See more</a>
                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">enum</span> <span class="kt">ConnectionType</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire26NetworkReachabilityManagerC8Listenera"></a>
                    <a name="//apple_ref/swift/Alias/Listener" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire26NetworkReachabilityManagerC8Listenera">Listener</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>A closure executed when the network reachability status changes. The closure takes a single argument: the
network reachability status.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">typealias</span> <span class="kt">Listener</span> <span class="o">=</span> <span class="p">(</span><span class="kt"><a href="../Classes/NetworkReachabilityManager/NetworkReachabilityStatus.html">NetworkReachabilityStatus</a></span><span class="p">)</span> <span class="o">-&gt;</span> <span class="kt">Void</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
              </ul>
            </div>
            <div class="task-group">
              <div class="task-name-container">
                <a name="/Properties"></a>
                <a name="//apple_ref/swift/Section/Properties" class="dashAnchor"></a>
                <a href="#/Properties">
                  <h3 class="section-name">Properties</h3>
                </a>
              </div>
              <ul class="item-container">
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire26NetworkReachabilityManagerC11isReachableSbvp"></a>
                    <a name="//apple_ref/swift/Property/isReachable" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire26NetworkReachabilityManagerC11isReachableSbvp">isReachable</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Whether the network is currently reachable.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">open</span> <span class="k">var</span> <span class="nv">isReachable</span><span class="p">:</span> <span class="kt">Bool</span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire26NetworkReachabilityManagerC17isReachableOnWWANSbvp"></a>
                    <a name="//apple_ref/swift/Property/isReachableOnWWAN" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire26NetworkReachabilityManagerC17isReachableOnWWANSbvp">isReachableOnWWAN</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Whether the network is currently reachable over the WWAN interface.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">open</span> <span class="k">var</span> <span class="nv">isReachableOnWWAN</span><span class="p">:</span> <span class="kt">Bool</span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire26NetworkReachabilityManagerC27isReachableOnEthernetOrWiFiSbvp"></a>
                    <a name="//apple_ref/swift/Property/isReachableOnEthernetOrWiFi" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire26NetworkReachabilityManagerC27isReachableOnEthernetOrWiFiSbvp">isReachableOnEthernetOrWiFi</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Whether the network is currently reachable over Ethernet or WiFi interface.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">open</span> <span class="k">var</span> <span class="nv">isReachableOnEthernetOrWiFi</span><span class="p">:</span> <span class="kt">Bool</span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire26NetworkReachabilityManagerC07networkC6StatusAC0bcF0Ovp"></a>
                    <a name="//apple_ref/swift/Property/networkReachabilityStatus" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire26NetworkReachabilityManagerC07networkC6StatusAC0bcF0Ovp">networkReachabilityStatus</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>The current network reachability status.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">open</span> <span class="k">var</span> <span class="nv">networkReachabilityStatus</span><span class="p">:</span> <span class="kt"><a href="../Classes/NetworkReachabilityManager/NetworkReachabilityStatus.html">NetworkReachabilityStatus</a></span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire26NetworkReachabilityManagerC13listenerQueueSo17OS_dispatch_queueCvp"></a>
                    <a name="//apple_ref/swift/Property/listenerQueue" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire26NetworkReachabilityManagerC13listenerQueueSo17OS_dispatch_queueCvp">listenerQueue</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>The dispatch queue to execute the <code><a href="../Classes/NetworkReachabilityManager.html#/s:9Alamofire26NetworkReachabilityManagerC8listeneryAC0bC6StatusOcSgvp">listener</a></code> closure on.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">open</span> <span class="k">var</span> <span class="nv">listenerQueue</span><span class="p">:</span> <span class="kt">DispatchQueue</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire26NetworkReachabilityManagerC8listeneryAC0bC6StatusOcSgvp"></a>
                    <a name="//apple_ref/swift/Property/listener" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire26NetworkReachabilityManagerC8listeneryAC0bC6StatusOcSgvp">listener</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>A closure executed when the network reachability status changes.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">open</span> <span class="k">var</span> <span class="nv">listener</span><span class="p">:</span> <span class="kt">NetworkReachabilityManager</span><span class="o">.</span><span class="kt"><a href="../Classes/NetworkReachabilityManager.html#/s:9Alamofire26NetworkReachabilityManagerC8Listenera">Listener</a></span><span class="p">?</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire26NetworkReachabilityManagerC5flagsSo09SCNetworkC5FlagsVSgvp"></a>
                    <a name="//apple_ref/swift/Property/flags" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire26NetworkReachabilityManagerC5flagsSo09SCNetworkC5FlagsVSgvp">flags</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Undocumented</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">open</span> <span class="k">var</span> <span class="nv">flags</span><span class="p">:</span> <span class="kt">SCNetworkReachabilityFlags</span><span class="p">?</span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire26NetworkReachabilityManagerC13previousFlagsSo09SCNetworkcF0Vvp"></a>
                    <a name="//apple_ref/swift/Property/previousFlags" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire26NetworkReachabilityManagerC13previousFlagsSo09SCNetworkcF0Vvp">previousFlags</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Undocumented</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">open</span> <span class="k">var</span> <span class="nv">previousFlags</span><span class="p">:</span> <span class="kt">SCNetworkReachabilityFlags</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
              </ul>
            </div>
            <div class="task-group">
              <div class="task-name-container">
                <a name="/Initialization"></a>
                <a name="//apple_ref/swift/Section/Initialization" class="dashAnchor"></a>
                <a href="#/Initialization">
                  <h3 class="section-name">Initialization</h3>
                </a>
              </div>
              <ul class="item-container">
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire26NetworkReachabilityManagerC4hostACSgSS_tcfc"></a>
                    <a name="//apple_ref/swift/Method/init(host:)" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire26NetworkReachabilityManagerC4hostACSgSS_tcfc">init(host:)</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Creates a <code>NetworkReachabilityManager</code> instance with the specified host.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="n">convenience</span> <span class="nf">init</span><span class="p">?(</span><span class="nv">host</span><span class="p">:</span> <span class="kt">String</span><span class="p">)</span></code></pre>

                        </div>
                      </div>
                      <div>
                        <h4>Parameters</h4>
                        <table class="graybox">
                          <tbody>
                            <tr>
                              <td>
                                <code>
                                <em>host</em>
                                </code>
                              </td>
                              <td>
                                <div>
                                  <p>The host used to evaluate network reachability.</p>
                                </div>
                              </td>
                            </tr>
                          </tbody>
                        </table>
                      </div>
                      <div>
                        <h4>Return Value</h4>
                        <p>The new <code>NetworkReachabilityManager</code> instance.</p>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire26NetworkReachabilityManagerCACSgycfc"></a>
                    <a name="//apple_ref/swift/Method/init()" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire26NetworkReachabilityManagerCACSgycfc">init()</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Creates a <code>NetworkReachabilityManager</code> instance that monitors the address 0.0.0.0.</p>

<p>Reachability treats the 0.0.0.0 address as a special token that causes it to monitor the general routing
status of the device, both IPv4 and IPv6.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">public</span> <span class="n">convenience</span> <span class="nf">init</span><span class="p">?()</span></code></pre>

                        </div>
                      </div>
                      <div>
                        <h4>Return Value</h4>
                        <p>The new <code>NetworkReachabilityManager</code> instance.</p>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire26NetworkReachabilityManagerCfd"></a>
                    <a name="//apple_ref/swift/Method/deinit" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire26NetworkReachabilityManagerCfd">deinit</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Undocumented</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">deinit</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
              </ul>
            </div>
            <div class="task-group">
              <div class="task-name-container">
                <a name="/Listening"></a>
                <a name="//apple_ref/swift/Section/Listening" class="dashAnchor"></a>
                <a href="#/Listening">
                  <h3 class="section-name">Listening</h3>
                </a>
              </div>
              <ul class="item-container">
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire26NetworkReachabilityManagerC14startListeningSbyF"></a>
                    <a name="//apple_ref/swift/Method/startListening()" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire26NetworkReachabilityManagerC14startListeningSbyF">startListening()</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Starts listening for changes in network reachability status.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">@discardableResult</span>
<span class="kd">open</span> <span class="kd">func</span> <span class="nf">startListening</span><span class="p">()</span> <span class="o">-&gt;</span> <span class="kt">Bool</span></code></pre>

                        </div>
                      </div>
                      <div>
                        <h4>Return Value</h4>
                        <p><code>true</code> if listening was started successfully, <code>false</code> otherwise.</p>
                      </div>
                    </section>
                  </div>
                </li>
                <li class="item">
                  <div>
                    <code>
                    <a name="/s:9Alamofire26NetworkReachabilityManagerC13stopListeningyyF"></a>
                    <a name="//apple_ref/swift/Method/stopListening()" class="dashAnchor"></a>
                    <a class="token" href="#/s:9Alamofire26NetworkReachabilityManagerC13stopListeningyyF">stopListening()</a>
                    </code>
                  </div>
                  <div class="height-container">
                    <div class="pointer-container"></div>
                    <section class="section">
                      <div class="pointer"></div>
                      <div class="abstract">
                        <p>Stops listening for changes in network reachability status.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">func</span> <span class="nf">stopListening</span><span class="p">()</span></code></pre>

                        </div>
                      </div>
                    </section>
                  </div>
                </li>
              </ul>
            </div>
          </div>
        </section>

      </article>
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