Re: [Aerogear-users] An app crash scenario after clicking on push notification

On Thu, Apr 20, 2017 at 10:42 AM, Federico Cerminara < fedecentrico(a)gmail.com&gt; wrote: > Hi Summers, > even if I am not the bravest developer I know, the main trouble is the > lack of time available to spend on this job. Before deciding internally how > to face the problem, I'd like to ask you if you've already scheduled a > fixing activity for this bug in a future release (and eventually which > could be a date to have an official fix). > Instead, if you think the better approach is to trust on my bravery, I'm > here to ask you how I could recompile the plugin after applyng all the > modifies it requires. What can you suggest me to do? Wait anyway for a > future release or start testing a solution and after sending a pull > request? > > Well it isn't my project so I can't make any timeline commitments. However if you send a pull request it makes it easier to bundle a release. I suggest you read the Cordova developer docs to learn how to write a plugin, they teach you how to compile it for the various platforms as well. > Thanks anyway, Federico. > > > > > 2017-04-20 15:24 GMT+02:00 Summers Pittman <supittma(a)redhat.com&gt;: > >> >> >> On Thu, Apr 20, 2017 at 6:08 AM, Federico Cerminara < >> fedecentrico(a)gmail.com&gt; wrote: >> >>> Hi Summers, >>> first of all, i'd like to thank you for your precious suggestion. >>> I managed to launch my app using Android Emulator and together with the >>> logcat tool. >>> Thanks to this new approach, i was able to take some lines from the >>> logcat stacktrace and now i can share them in the following. >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> *04-20 11:35:44.861 31658 31658 E AndroidRuntime: >>> java.lang.RuntimeException: Unable to start activity >>> ComponentInfo{org.jboss.aerogear.android.cookbook.aerodoc/org.jboss.aerogear.cordova.push.PushHandlerActivity}: >>> java.lang.NullPointerException: Attempt to invoke interface method >>> 'java.util.Collection org.jboss.aerogear.android.store.Store.readAll()' on >>> a null object reference... ... ... 04-20 11:35:44.861 31658 31658 E >>> AndroidRuntime: Caused by: java.lang.NullPointerException: Attempt to >>> invoke interface method 'java.util.Collection >>> org.jboss.aerogear.android.store.Store.readAll()' on a null object >>> reference04-20 11:35:44.861 31658 31658 E AndroidRuntime: at >>> org.jboss.aerogear.cordova.push.PushHandlerActivity.processPushBundle(PushHandlerActivity.java:60)04-20 >>> 11:35:44.861 31658 31658 E AndroidRuntime: at >>> org.jboss.aerogear.cordova.push.PushHandlerActivity.onCreate(PushHandlerActivity.java:45)04-20 >>> 11:35:44.861 31658 31658 E AndroidRuntime: at >>> android.app.Activity.performCreate(Activity.java:6876)04-20 11:35:44.861 >>> 31658 31658 E AndroidRuntime: at android.app.Instrumentation.ca >>> <http://android.app.Instrumentation.ca>llActivityOnCreate(Instrumentati... >>> 11:35:44.861 31658 31658 E AndroidRuntime: at >>> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3207)04-20 >>> 11:35:44.861 31658 31658 E AndroidRuntime: ... 9 more* >>> As i wrote in the first mail, this is the app crash scenario. If I have >>> my app closed or already open, clicking on push notification seems to >>> behave correctly, bringing user to application first page. Instead, if I >>> try to close all my applications after receiving one or more push >>> notification (image notification frequency is quite low) and then I try to >>> click on my waiting push, application crashes showing a message that sound >>> quite like this “The program <app_name> has been interrupted” >>> >>> Reading the log stacktrace, it seems like there's a NPE in >>> *PushHandlerActivity.java:60*, and more precisely when it tries to >>> read the store content. >>> Now, I don't know if it's the right place to face the problem, of if I >>> should open a ticket somewhere else, or if it's an already known and solved >>> bug, or if eventually it's some kind of problem related to a wrong >>> configuration in my app. Before losing me in all this wondering, can you >>> suggest me what to do? Could i try directly to change the java code in the >>> class PushHandlerActivity? Should it have effect, also eventually to make a >>> test locally? >>> >>> >> So 1) I think we have this bug known already ( >> https://issues.jboss.org/browse/AGCORDOVA-167), sorry about that. >> >> 2) If you are feeling brave you can add the null/initialization check >> from here : >> >> https://github.com/aerogear/aerogear-cordova-push/blob/b313 >> fcfb20708089f2e0bcb871e396f67ee2b1a5/src/android/org/jboss/a >> erogear/cordova/push/NotificationMessageHandler.java#L43 >> >> to here : >> >> https://github.com/aerogear/aerogear-cordova-push/blob/b31 >> 3fcfb20708089f2e0bcb871e396f67ee2b1a5/src/android/org/jboss/ >> aerogear/cordova/push/PushHandlerActivity.java#L60 >> >> rebuild the cordova library, test it, and send a pull request if it >> fixes your problem. >> >> >>> Here some information about my test conditions which could be useful. >>> >>> OS: Android 6.0.1 >>> Device: Samsung S6 >>> Aerogear Plugin Version: 3.1.0 >>> >>> We're talking about a cross platform application developed with Ionic 1 >>> and Angular 1. >>> I did not try to verify if the problem is happening also on a iOS >>> device, but i'm gonna do it immediately after writing this reply. >>> Do you think some other info could be useful? >>> >>> Thanks anyway, Federico. >>> >>> >>> >>> >>> 2017-04-19 13:37 GMT+02:00 Summers Pittman <supittma(a)redhat.com&gt;: >>> >>>> The easiest tool to use is logcat with the Android emulator. Logcat >>>> is part of the Android SDK which you installed while you were setting up >>>> your development environment (it may have been installed by another tool >>>> but it is there). >>>> >>>> All you need to do is, from the command line, run logcat. Then run >>>> your application and wait for it to crash, and you will find the stack >>>> trace (and a bunch of other stuff), in the log. It is possible to filter >>>> the logcat output based on the package name of the application generating >>>> logs, but one thing at a time. >>>> >>>> Summers >>>> >>>> On Wed, Apr 19, 2017 at 4:11 AM, Federico Cerminara < >>>> fedecentrico(a)gmail.com&gt; wrote: >>>> >>>>> Still not able to introduce a tool to produce a stacktrace. I know it >>>>> would be helpful (if you have suggestions about which tool/plugin/approach >>>>> to use...) but now i am still not able to do it. I’m a beginner in >>>>> cross platform app development, as i said before :( >>>>> >>>>> 2017-04-18 17:23 GMT+02:00 Summers Pittman <supittma(a)redhat.com&gt;: >>>>> >>>>>> >>>>>> >>>>>> On Tue, Apr 18, 2017 at 10:55 AM, Federico Cerminara < >>>>>> fedecentrico(a)gmail.com&gt; wrote: >>>>>> >>>>>>> Hi Summers, >>>>>>> thanks for your immediate reply. The OS on the device i am testing >>>>>>> now is Android 6.0.1, but I don't know if it's an useful information cause >>>>>>> I'm using Ionic 1 and Angular 1 to develop a Cross Platform App. >>>>>>> >>>>>>> The code is not publicly available but I can share some code pieces >>>>>>> if you suggest me which pieces of code could help us for this analysis. >>>>>>> >>>>>>> It's not ax example app, I just took inspiration from the snippet >>>>>>> of code included in Android aerogear variant and used them to complete my >>>>>>> app.js code. >>>>>>> >>>>>>> How could you help me? >>>>>>> >>>>>> >>>>>> Would you be able to include your stack trace from logcat when the >>>>>> application crashes? >>>>>> >>>>>> I'm not as familiar with Cordova as I should be, but I should be >>>>>> able to make heads or tails of it. >>>>>> >>>>>> >>>>>>> Thanks anyway, Federico. >>>>>>> >>>>>>> >>>>>>> 2017-04-18 16:33 GMT+02:00 Summers Pittman <supittma(a)redhat.com&gt;: >>>>>>> >>>>>>>> Frederico, >>>>>>>> >>>>>>>> Hi, sorry you are having trouble with UPS. If you could help us >>>>>>>> out by answering a couple of questions that would be great. >>>>>>>> >>>>>>>> 1) Which OS is your applicatoin having trouble on and are you >>>>>>>> using Cordova or native libraries? >>>>>>>> >>>>>>>> 2) Is your code publicly available somewhere for us to look at? >>>>>>>> >>>>>>>> 3) Are you using the example app or is this your own >>>>>>>> implementation? >>>>>>>> >>>>>>>> I know from experience that with Android one of the common >>>>>>>> problems is that if the application has been killed by the OS then the Push >>>>>>>> libraries have to be reinitialized before you can send metrics to the >>>>>>>> server. If you are initializing your push libraries in an Activity class >>>>>>>> instead of the Application class this may be something to double check. Of >>>>>>>> course if this is iOS or Cordova then everything I just said is nonsense :) >>>>>>>> >>>>>>>> Summers >>>>>>>> >>>>>>>> On Tue, Apr 18, 2017 at 10:18 AM, Federico Cerminara < >>>>>>>> fedecentrico(a)gmail.com&gt; wrote: >>>>>>>> >>>>>>>>> Hi, >>>>>>>>> my name is Federico Cerminara, 35 years old, engineer and web >>>>>>>>> developer in Rome. >>>>>>>>> I’m a beginner in cross platform app development and I’ve started >>>>>>>>> using aerogear cordova push plugin to enable reception of push >>>>>>>>> notification. >>>>>>>>> >>>>>>>>> I’ve developed my first app. I’m able to receive correctly push >>>>>>>>> notification, both sending them directly by aerogear admin panel after >>>>>>>>> choosing a variant and and sending them from the application backend >>>>>>>>> following a custom logic. If I have my app closed or already open, clicking >>>>>>>>> on push notification seems to behave correctly, bringing user to >>>>>>>>> application first page. Instead, if I try to close all my applications >>>>>>>>> after receiving one or more push notification (image notification frequency >>>>>>>>> is quite low) and then I try to click on my waiting push, application >>>>>>>>> crashes showing a message that sound quite like this “The program >>>>>>>>> <app_name> has been interrupted” >>>>>>>>> >>>>>>>>> Can you tell me a way to solve this problem? >>>>>>>>> Thanks anyway, Federico. >>>>>>>>> >>>>>>>>> _______________________________________________ >>>>>>>>> Aerogear-users mailing list >>>>>>>>> Aerogear-users(a)lists.jboss.org >>>>>>>>> https://lists.jboss.org/mailman/listinfo/aerogear-users >>>>>>>>> >>>>>>>>> >>>>>>>> > >