Question

当用户从后台打开我的应用程序时，我遇到了使我的应用程序变慢的问题。查看日志，似乎websocket已断开连接，然后再次连接，这触发了我的实时数据库功能，该功能更新了我的redux存储，并重新呈现了我的视图。这就是让我的应用程序慢下来的原因。

我考虑过使用以下来自react-native的函数来处理我的重新连接和断开连接，但是我认为这不是正确的方法。

AppState.addEventListener('change', this._handleAppStateChange);

这是5-10分钟后我从后台打开应用程序时得到的日志：

c:0:0:0 Websocket connection was disconnected. 
util.js:133 c:0:0:0 WebSocket is closing itself 
util.js:133 c:0:0: Realtime connection lost. 
util.js:133 c:0:0: Closing realtime connection. 
util.js:133 c:0:0: Shutting down all connections 
util.js:133 p:0: data client disconnected 
util.js:133 p:0: Trying to reconnect in 0ms 
util.js:133 0: onDisconnectEvents 
app.js:150 distanceMi
app.js:151 0
util.js:133 p:0: Making a connection attempt 
util.js:133 getToken() completed. Creating connection. 
util.js:133 c:0:1: Connection created 
RCTLog.js:47 SocketRocket: In debug mode.  Allowing connection to any root cert
util.js:133 c:0:1:0 Websocket connecting to wss://s-usc1c-nss-249.firebaseio.com/.ws?v=5&ls==&ns=instabo-production 
RCTLog.js:47 SocketRocket: In debug mode.  Allowing connection to any root cert
c:0:1:0 Websocket connected. 
util.js:133 c:0:1: Realtime connection established. 
util.js:133 p:0: connection ready 
util.js:133 p:0: {"r":10,"a":"auth","b":{"cred":"token"}} 
util.js:133 p:0: Listen on /instavice/variables for default 
util.js:133 p:0: {"r":11,"a":"q","b":{"p":"/instavice/variables","h":"gETk+lRA+OQ6CA3WxV1tJp899vk="}} 
util.js:133 p:0: Listen on /nurses/IEvkY2X161bf1IMgOMayW2oDq0l2 for default 
util.js:133 p:0: {"r":12,"a":"q","b":{"p":"/nurses/nurseID","h":"DZANoj/kEuhff2s4ng1Zie1q/24="}} 
util.js:133 p:0: Listen on /offersNurse for default 
util.js:133 p:0: {"r":13,"a":"q","b":{"p":"/offersNurse","h":"="}} 
util.js:133 p:0: from server: {"r":10,"b":{"s":"ok","d":{"auth":{"email_verified":true,"provider":"password","email":"birolleauf@wlnss.co","user_id":"","token":{"email_verified":true,"email":"birolleauf@wlnss.co","exp":1566869220,"user_id":"","iat":1566865620,"sub":"IEvkY2X161bf1IMgOMayW2oDq0l2","aud":"instabo-production","auth_time":1566865620,"iss":"https://securetoken.google.com/instabo-production","firebase":{"identities":{"email":["@wlnss.co"]},"sign_in_provider":"password"}},"uid":""},"expires":1566869220}}} 
util.js:133 c:0:1: Primary connection is healthy. 
util.js:133 p:0: from server: {"r":11,"b":{"s":"ok","d":{}}} 
util.js:133 p:0: listen response {"s":"ok","d":{}} 
util.js:133 p:0: from server: {"r":12,"b":{"s":"ok","d":{}}} 
util.js:133 p:0: listen response {"s":"ok","d":{}} 
util.js:133 p:0: from server: {"r":13,"b":{"s":"ok","d":{}}} 
util.js:133 p:0: listen response {"s":"ok","d":{}}

这是我用来实时获取用户数据和优惠的代码：

const OffersRef = getDatabase().ref('offersNurse')
      OffersRef.on('value', snap => {
          ///// some code
          /// update redux store
      }) 

const userRef = getDatabase().ref('nurses/' + userID)
                onValueUser = userRef.on('value', function(snap) {
                    ///// some code
                    /// update redux store
                })

我想实现一个功能，该功能可以在应用程序在后台运行时保持我的网络套接字连接，或者可以避免我的实时功能再次被触发。

干杯！

当应用在后台运行时，Websocket断开连接

0 个答案: