Android eventQueue错误

Question

为什么我会犯这个错误？如何将此方法/类的信息传递给其他类？pusher类/代码正确地获取数据并正确显示，但是当我试图从另一个类访问其他方法时，它会给出下面的错误。有什么想法吗？下面是具有Handler_Pusher类的pusher代码：

privatechannel.bind("event", new PrivateChannelEventListener() {
            @Override
            public void onEvent(final String channelName, final String eventName, final String data) {
                Log.v(TAG, "Private Test onEvent: " + channelName + "  " + eventName + "  " + data);
                docSyncData = getDocumentUrlExtension(data);
                final String URL = DOCUMENT_URL_PREFIX + docSyncData + ".pdf";
                Log.v(TAG, "URL:::" + URL);
                Activity_InCall.dialogLaunch(URL);
            }

            @Override
            public void onSubscriptionSucceeded(String channelName) {
                Log.v(TAG, "Private Channel onSubscriptionSucceeded: " + channelName);
            }

            @Override
            public void onAuthenticationFailure(String message, Exception e) {
                Log.v(TAG, "Private Channel onAuthenticationFailure: " + message + ":::" + e);
            }
        });

下面是我试图在类Activity_InCall中调用的方法：

public static void dialogLaunch(String data){
        Log.v(TAG, "Pusher:::" + data);
        Intent activityDocSync = new Intent(context, Activity_DocSync.class);
        context.startActivity(activityDocSync);
    }

下面是我看到的logcat错误，URL通过ok，然后给出"eventQueue“错误，然后进入空指针异常：

11-23 09:58:12.551 19108-19771/com.talkative.reach V/InCallActivity: Pusher:::URL
11-23 09:58:12.598 19108-19771/com.talkative.reach E/AndroidRuntime: FATAL EXCEPTION: pusher-java-client eventQueue
11-23 09:58:12.598 19108-19771/com.talkative.reach E/AndroidRuntime: Process: com.talkative.reach, PID: 19108
11-23 09:58:12.598 19108-19771/com.talkative.reach E/AndroidRuntime: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.content.Context.getPackageName()' on a null object reference
11-23 09:58:12.598 19108-19771/com.talkative.reach E/AndroidRuntime:     at android.content.ComponentName.<init>(ComponentName.java:77)
11-23 09:58:12.598 19108-19771/com.talkative.reach E/AndroidRuntime:     at android.content.Intent.<init>(Intent.java:4160)
11-23 09:58:12.598 19108-19771/com.talkative.reach E/AndroidRuntime:     at com.talkative.reach.Activity_InCall.dialogLaunch(Activity_InCall.java:398)
11-23 09:58:12.598 19108-19771/com.talkative.reach E/AndroidRuntime:     at com.talkative.reach.Handler_PusherPrivate$2.onEvent(Handler_PusherPrivate.java:90)
11-23 09:58:12.598 19108-19771/com.talkative.reach E/AndroidRuntime:     at com.pusher.client.channel.impl.ChannelImpl$1.run(ChannelImpl.java:100)
11-23 09:58:12.598 19108-19771/com.talkative.reach E/AndroidRuntime:     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
11-23 09:58:12.598 19108-19771/com.talkative.reach E/AndroidRuntime:     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
11-23 09:58:12.598 19108-19771/com.talkative.reach E/AndroidRuntime:     at java.lang.Thread.run(Thread.java:818)

Answer 1

eventQueue是发生异常的线程。

从堆栈跟踪来看，最后一段“用户土地”代码是com.talkative.reach.Activity_InCall.dialogLaunch(Activity_InCall.java:398)。

我要回答的几个问题是：

1. context在dialogLaunch中是一个静态访问对象吗？
2. 应该在UI线程上而不是在eventQueue库线程上访问它吗？请参阅runOnUiThread