Android : Child Activity Exit By Unexpected Exception - OnActivityResult - Is Not Called
Jun 23, 2010
I have faced with issue about startActivityForResult() and onActivityResult(). If child activity started by the startActivityForResult() exit by unexpected exception the onActivityResult() is not called and I have no any ideas how can I handle this to get application working in a fail-safe manner ?
When my code runs child activity with startActivityForResult() it awaits until onActivityResult() will be invoked to get working further, but onActivityResult() is not calling and my code is "hang- up" (logically).
So the question is how can I handle all possible ways the child activity is finished (normally and by unexpected exception) to get fail-safe code ?
I have check the documentation for this issue but have found nothing relating issue.
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Sep 30, 2009
I have a flow A->B->C->D where A desires some information that is obtained by D. B, C, and D propagate the data back through the flow using setResult(RESULT_OK, data) and finish(). All intents in A, B, and C are started with startActivityForResult. However, if B is reclaimed by Android and forced to call onCreate again after C finishes onActivityResult in B is never called and the data never makes it back to A. Is there a way I can be sure that onActivityResult will be called?
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Jun 8, 2010
I have an application, which (for the sake of simplicity) has two types of activities - Overview and DetailView. The Overview activity shows a list of steps and allows the user to start a DetailView activity corresponding to the step chosen.
In the DetailView activity, the user can start another Overview, which shows different steps than the ones in the parent of the current DetailView.
In the Overview, DetailView is started by using startActivityForResult (). In the DetailView, when the user decides to start a second Overview, I call setResult () and finish () and then start the new Overview. In this scenario, onActivityResult () and finishFromChild () do not fire. Instead, they fire when the parent finishes (?).
Code from Overview:
CODE:....
Code from DetailView:
CODE:..........................
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Aug 5, 2010
The order is:
A: startActivityForResult( B ) B: <dostuff>, call finish() A: onCreate <---- what's this all about A: onActivityResult
This happens for a tiny minority of users. I havn't been able to reproduce or find any common elements. A is the launch activity.
CODE:..............
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Jul 6, 2010
I have a problem with the method "onActivityResult".
I create a new Activity from my main activity:
CODE:.........
The new Activity is ended like this:
CODE:.............
But the Method onActivityResult seem to be not called
CODE:................
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Jul 21, 2010
I'll be brief. I have an application with the following Activities Schema:
A (ActivityGroup) | |__
B (Activity Group) | | | |__
C (Activity) | |__ ... (Other Activities) | |__
D (ListActivity) | | | |__
ListView with a custom adapter with two buttons per row
All the Activities shown on the "diagram" are displayed and visible in real time while the application is being executed.
I'm pushing new list elements from C to the ListView in D. And by clicking each row's buttons I'm trying to edit the data of the row by means of a dialog. The problem is when, in the dialog activity, I perform the setResult() and finish(); the D's onActivityResult() is never called, and I do not know why.
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May 4, 2009
I am updating some code from 1.1 to run with the new SDK 1.5. I noticed that onActivityResult is being called before OnRestart.
If Activity A calls activity B. Activity A goes to onPause(), then onStop(). Activity B goes on... finishes and returns.
Activity A starts at onActivityResultf(). So if you try to make a clean exit with onStop(), it will cause nullPointers when it comes back.
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Jul 3, 2010
OnActivityResult is giving me major headaches. My little game has a title / menu screen. Upon clicking "new game" an Activity is launched which creates a SurfaceView for my game world.
When playing, the player can enter buildings in the game world. Upon entering a building I launch the activity for that particular building from my SurfaveView.
Here is an example:
CODE:............
mMap is the SurfaceView. I'm passing a bundle containing the state of the player. In onActivityResult I grab the bundle returned by the store activity and update the player state.
CODE:................
mSavedPlayer is later used to set the new player state.
All the above works generally
I can enter stores, buy stuff, leave and the player is updated correctly.
The problem manifests when I press the Home button (or someyimes back button) and onDestroy gets called. My onDestroy method does nothing besides call super.onDestroy();
After onDestroy() gets called onActivityResult no longer gets called.
So:
1) I play the game, everthing works great.
2) I press home and ondestroy is called
3) relaunch my game via launcher icon
4) Resume game. I can still enter and leave stores but onActivityResult is no longer called.
Here is some logcat output. I'm logging each time I enter a relevant method.
CODE:................................
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Nov 21, 2010
I'm getting a "SAXParseException: Unexpected end of document" error when trying to parse an xml document on android. The document in question is from the google weather api, but it seems to throw the same error regardless of the xml file in question (as long as the xml is valid) so I suspect it's a problem with my approach, rather than the xml. This is being done as a learning exercise, so I've probably (hopefully) overlooked something obvious. I've run the xml through an online validator, and it comes back as being well formed. (Can't tell me if it's valid as I don't have a DTD, but I dont think I need the DTD to parse the xml). This is the code that I'm using to try and parse the file:
private void refreshForecast() URL url;
try { url = new URL( "http://192.168.1.66:8000/google4.xml");
URLConnection connection = url.openConnection();
HttpURLConnection httpConnection = (HttpURLConnection)connection;
int responseCode = httpConnection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
InputStream in = httpConnection.getInputStream();
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
// falls over here parsing the xml.Document dom = db.parse(in);
} } catch (ManyExceptions e) { ....
} A cutdown version of the xml that produces the error is:
<?xml version="1.0"?>
<xml_api_reply version="1">
<weather>
<forecast_information>
<city>Hamilton</city>
</forecast_information>
</weather>
</xml_api_reply>
The stacktrace is:
11-20 06:17:24.416: WARN/System.err(406): org.xml.sax.SAXParseException: Unexpected end of document
11-20 06:17:24.416: WARN/System.err(406): at org.apache.harmony.xml.parsers.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:131)
11-20 06:17:24.416: WARN/System.err(406): at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:110)
11-20 06:17:24.426: WARN/System.err(406): at com.dave.nzweather.WeatherApp.refreshForecast(WeatherApp.java:159)
11-20 06:17:24.426: WARN/System.err(406): at com.dave.nzweather.WeatherApp.onCreate(WeatherApp.java:100)
11-20 06:17:24.426: WARN/System.err(406): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
11-20 06:17:24.438: WARN/System.err(406): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
11-20 06:17:24.438: WARN/System.err(406): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
11-20 06:17:24.446: WARN/System.err(406): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
11-20 06:17:24.446: WARN/System.err(406): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
11-20 06:17:24.456: WARN/System.err(406): at android.os.Handler.dispatchMessage(Handler.java:99)
11-20 06:17:24.456: WARN/System.err(406): at android.os.Looper.loop(Looper.java:123)
11-20 06:17:24.456: WARN/System.err(406): at android.app.ActivityThread.main(ActivityThread.java:4627)
11-20 06:17:24.466: WARN/System.err(406): at java.lang.reflect.Method.invokeNative(Native Method)
11-20 06:17:24.466: WARN/System.err(406): at java.lang.reflect.Method.invoke(Method.java:521)
11-20 06:17:24.466: WARN/System.err(406): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
11-20 06:17:24.476: WARN/System.err(406): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
11-20 06:17:24.476: WARN/System.err(406): at dalvik.system.NativeStart.main(Native Method)
11-20 06:17:24.486: WARN/ROGER(406): org.xml.sax.SAXParseException: Unexpected end of document
In the interest of brevity, I've not included the original xml, but it's just the standard weather xml from googles feed. I've also tried a few completely different xml files, (including the sample from http://www.ibm.com/developerworks/xml/library/x-android/) and they all give the same error. (They also all validate as well formed when I run them through an online xml validator). This makes me think that it's not a problem with the xml, but rather with how I'm trying to feed it into the parser.
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Nov 28, 2010
I have the following issue. I am starting a recognizer intent activity in order to detect speech using the "startActivityForResult" method. I have also an "onActivityResult" method listening for results from the recognizer activity. It works and it detects my speech. The problem is that it is only called when everything is ok or when i cancel the operation, but it is not called if it doesn't find a matching text "RecognizerIntent.RESULT_NO_MATCH" or in the rest of wrong cases "RecognizerIntent.RESULT_........" What is happening? Application is Android 2.1 and I have tested on a Android 2.2 device.
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May 10, 2009
I am attempting to integrate some previous libraries that we have within my new android project.
I have made several attempts including:
Importing the code as sub-projects (that are built using the android.jar)
Importing the code as jar files (from the built code)
Adding the files directly as part of my project
Reordering the dependencies
However for each one of these scenarios I keep getting the following exception thrown by the davlik compiler.
It is always picking the first class in the package (ie if I remove that class, it picks the next and so on).
It would appear to me that this is a compiler bug - somehow it's getting it's dependencies in a twist.
Anyone else experienced this? And/or have any ideas on how to get around this one?
UNEXPECTED TOP-LEVEL EXCEPTION:
CODE:................................
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Apr 4, 2010
I am getting IllegalArgumentException: Service is not registered when i try to stop my service by initially calling unbindservice and then stopService.
Before calling unbindService i first check if my service is still bound by checking (mBoundService - obtained from the ServiceConnection) I also check if the service is not stopped and only then i call the unbindService But I still get the error. From the posts that I read only I found out that both these calls are asynchronous and that the service will only stop when nothing is bound to it.
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Apr 6, 2010
I created a TextView and put an url to it, using setText(Html.fromHtml("");. Its opening the web page in the built-in browser and when I press back, its coming back to the application.
I don't want to come back to the application, so in activity's onResume(), I call finish(). Its exiting at the first time. But when I open the application again, its throwing some exception.
Any other way to close the application, other than this way.
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Feb 3, 2009
Can you please tell me if you know how to get the Andorid unit test instrementation to call my activity's onActivityResult()?
I can't find anything here: http://code.google.com/android/reference/android/app/Instrumentation.
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Jul 25, 2010
I have a main screen with buttons to launch other subactivities. I have to press back button each time to go back to the main screen of my application. How do I finish a child activity and automatically return from the caller?
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Jul 26, 2010
How can I make sure I only retain one copy of an activity on the stack when called from non-activity? When called from an activity I can just add the FLAG_ACTIVITY_REORDER_TO_FRONT flag to the Intent, but how can I do this from e.g. a widget or a notification?
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Jul 9, 2010
I have a Contact Activity which is derived from ListActivity, which displays list of contacts, and on click of item, a new Activity Message Activity derived from ListActivity is initialized.Now I know, I can pack some information in Bundle and pass it before creating activity, but is there a way I can get instance of "ContactActivity" in onCreate method of "MessageActivity"?
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May 18, 2010
When exiting the activity in a thread in a SurfaceView. This log appears in this situation:.............
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Feb 6, 2009
How to set RESULT_OK when activity exit? I am launching list activity from main activity using startActivityForResult, after doing work with list activity; i exit from it from it using "finish()" but it doesn't propagate RESULT_OK to main activity in onActivityResult(), what should I do , so that listact should return RESULT_OK.
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Jan 11, 2010
How to animate activity entrance and exit? And activity relaunch after onNewIntent()?I used android:theme in the manifest file but it didn't work for me.
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Dec 2, 2009
what puzzle me so much is that i can't destroy a GLSurfaceView while i don't want to exit the activity.
the fact is when i destroy a GLSurfaceView which had show in the screen (that means it has binded to the activity's SurfaceHolder), the activity exits without any prompting. Perhaps ,the Context which provided in the Construction of GLSurfaceView joins the two things together. so my conclusion is that a GLSurfaceView can only be destroyed when exit the activity. is there anyway to destroy a GLSurfaceView without exit activity? is there someone can provide a clue?
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Jan 21, 2010
I've been using System.exit to quit the application. Is Activity.finish a better approach? What would be the differences?
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Jul 22, 2009
I have requirement that needs to save data to a file. During multiple Activitiy screens, I add different data to a list and finally when user is not using the app (means if user exits app by pressing "home" button or "call" button), just before exiting that app, i want to save that data of the list to a file.
coding before exiting activity screen is simple - by calling onDestory () method, but here I want not one activity but the application exit.
So my question is How do I write a code that will be executed just before application exits ? I tried created one class extends Application, and then I override onTerminate() method, but it's not get called when I exit ( pressing home button on device)
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Dec 3, 2009
I'm having this strange issue where upon exiting a subactivity that is translucent (android:theme="@android: style/Theme.Translucent" ) the onStop() method doesn't appear to be called. have a TimerTask that runs and is supposed to be terminated when the subactivity ends in the onStop() method, but I'm instead left with an orphaned thread running in the background. It go particularly bad when I ran the subactivity several times. When I revert to no theme, the onStop() method is called and the activity behaves properly. Is there something I missed about how Translucent activities'lifecycles differ from standard activities?
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Mar 30, 2010
I'm in a small problem.i have three activities (suppose A,B,C) after performing onclick event in activity A, i can go to activity B and then C..my question is that is there any way to comeback activity A from C..here is the code snippet public void on Create(Bundle Code...
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Mar 29, 2010
My android application has 1 main activity. And it launches some sub-activity (which I wrote) and that also launches some sub-activity (which I wrote). I do this. My question is how can each of my sub-activity and sub-sub-activity get back to the Parent activity? Code...
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Nov 2, 2010
I wounder if there is some possible to know from which parent Iam coming from in the child so I can do different stuff depending on who the parent is of the activity.This is how Iam going over to the child. But I don't know how to handle this in the child to check who is the parent. The above code is used on one of the parents,, is there somehow I can use "EQ_CODE_SELECT_LOCATION"? Also I wounder how is possible to send data to a child activity?
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Sep 14, 2010
I have a parent activity (as ACTIVITY GROUP) and some child activity of this parent activity (as ACTIVITY).
I am just calling child1 now i want to move from child1 to child2 and just want to finish() child1.
But when i am calling finish() it is also finishing the parent activity.
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Mar 30, 2010
My child activity X is called from Parent activity P through startActivity(intent). I want to close P when X called its finish() method. I override a method finishFromChild(Activity child) in P and called finish() in it. But this functions (finishFromChild(Activity child)) is not being called after X finish() Is it a known bug or I am missing some thing? I googled and also searched the groups but no help.
An alternative could be... using StartActivityForResult() and a "fake" onActivityResult, where I can finish the parent activity, but this way is quite bad, i think...
I prefer the first one, if it would work....
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Jul 2, 2010
I have a parent activity, and a child activity that extends the parent activity. When the parent starts the child activity,
Which onCreate gets executed first? The child's or parent's?
There is a particular variable I am setting in the Child activity's onCreate method, and right now, it looks like it takes a while to get to the Child activity's onCreate, and so the methods in the Parent are reporting an empty variable. Whereas when I make the Parent sleep for a while, it reports the correct variable.
CODE:............
So, basically, even after the Parent starts the Child, it still returns "Parent Value", but when I have the thread sleep, it return "Child Value".
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