AndroidRuntime: FATAL EXCEPTION

[nitinagr]

My connection with SC getting disconnected sometimes and when i try to send some msg app crashes with below error can you please help me here.

shutting down VM
11–13 09:20:56.221 3371–3371/git.cluster.io.socketclusterandroid E/AndroidRuntime: FATAL EXCEPTION: main
Process: git.cluster.io.socketclusterandroid, PID: 3371
java.lang.NullPointerException: Attempt to invoke virtual method ‘void io.github.sac.Socket$Channel.publish(java.lang.Object)’ on a null object reference
at git.cluster.io.socketclusterandroid.MainActivity$5.onClick(MainActivity.java:146)
at android.support.v7.app.AlertController$ButtonHandler.handleMessage(AlertController.java:157)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.Act

[sacOO7]

Hey please make sure you are creating channel first and then publish on it.

Socket.Channel channel = socket.createChannel(channelName);

       // message can have any data type
    /**
     * without acknowledgement
     */
     channel.publish(message);
     
    /**
     * with acknowledgement
     */
       channel.publish(message, new Ack() {
                public void call(String channelName,Object error, Object data) {
                    if (error == null) {
                        System.out.println("Published message to channel "+channelName+" successfully");
                    }
                }
        });

[nitinagr]

That i am doing but when the connection is broken this exception crash the app.There should be a way to catch this exception and handle gracefully.

[sacOO7]

I think that shouldn't create a problem. I'm sure of that. Can you check if channel object become null after connection is broken.

[sacOO7]

Hi @nitinagr is your problem got solved? If it is let me know, I am closing this issue soon

[nitinagr]

Yes resolved.Please close it.

…

On Thu, Jan 25, 2018 at 12:37 AM, sachin shinde ***@***.***> wrote: Hi @nitinagr <https://github.com/nitinagr> is your problem got solved? If it is let me know, I am closing this issue soon — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#19 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ACzXABgzpgs8Q82qW--lUpkBXyHi-4eCks5tN39ogaJpZM4QcE4U> .