Android :: FinishFromChild And OnActivityResult Not Firing When Child Starts Activity Of Same Type As Parent
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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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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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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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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Nov 8, 2010
I want to open new child activity in the parent LinearLayout. Just similar like Tabs.
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Oct 7, 2010
I wish to have a single class which all of my Activity classes extend. I have ListActivities, Activities, MapActivities, TabActivities, etc in my App.
I have many of these different activities in my app, ~12 activities. I want each of them to have the methods which are in the parent class.
Right now, i have created 4 parent activity classes which are extended from a certain activity depending on their type(ListActivity, Activity, MapActivity, TabActivity)
I am creating a lot of redundant code - each of the 4 parent activities has almost identical code, in exception for what class activity it extends.
Here is an example that may clarify what my problem is:
I have an Activity: MenuScreen which extends BaseListActivity BaseListActivity extends ListActivity BaseListActivity contains methods and fields which i want all my activities to have access to I have another Activity: HomeScreen which extends BaseActivity BaseActivity extends Activity BaseActivity contains the same methods and fields which are in my other Base[<type>]Activity classes(such as BaseListActivity)
These methods/fields are copy-pasted to all my Base[<type>]Activity, and seems awfully redundant to me.
Can i create a master activity class which all types of Activity classes can use as its parent? if not, am i stuck with copy and pasting this code and feeling gross/dirty about it?
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Aug 17, 2010
A Follow up to this question: http://stackoverflow.com/questions/3488880/group-of-views-controls-on-multiple-screens
I have created a parent class and a child class that inherits from it. When I set the OnClickListener in the child class, the event fires when the button is clicked. When I move the set OnClickListener to the parent class, the event doesn't fire. I've got to be missing something obvious but I just don't see it.
CODE:............
Child Class:
CODE:.........................
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Nov 5, 2010
Is it possible for the child of an ExpandableListView also be a parent?
For example, I need something like the following: ParentA ChildA ChildB ParentB ChildC GrandchildA? GrandchildB? ParentC
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Dec 14, 2009
I know it's considered taboo to place a ListView inside a scrolling container, so is there any "proper" way to accomplish scrolling of a container that has a ListView child in it? An example layout would look something like:
Header
---
"Sub" header
---
ListView with list items
---
Footer
Header and Footer need to remain static on the screen, and the middle content (Subheader and ListView) should scroll between them. I can't have just the ListView scrollable, because the subheader takes up too much space. As it is currently, the Header comes from an <include />, the Subheader contains several views including an Image and some text, and the ListView (actually part of a ViewFlipper) would contain an indeterminate number of items. The Footer has a couple buttons/tabs that are used to control the ViewFlipper (only one of the views in the flipper is a ListView).
The only way I can think of to accomplish this efficiently would be to place the Subheader inside the ListView as the first item -- is there any better way?
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Aug 30, 2009
How to add image in expandable List in parent in android ?
If possible how to customize the child in expandable list?
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Sep 5, 2009
1) I have made an customizable expandable List .
2) Where I can customize the child.
3) But in parent(Group ID) I want to change the default icon of the parent.which look like(>).
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Dec 14, 2009
I'm using ExpandableListView in my app and one of the complains is that when expanded it's hard to visually distinguish where the child item ends and next group item begins. So I would like to change background of the child list item to the different shade. Brutal attempts that I've made so far were based on directly changing background color and text of the elements inside the child view item but that leads to loss of hovers and highlights. So my question is - what is a good strategy to achieve the above? I tried styles and selectors but what really bums me out - that if I change one thing then I need to add selectors for all combinations of focus/enabled etc. when all I'm trying to do it to overwrite a single thing. Is there a way to inherit parent style and set just a background for non- focused, enabled child item?
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Mar 20, 2010
I need to draw a child view containing a rectangle and button on top of the content view at particular location on the parent (content view). How can I do this? Did not find an explicit way to set origin of child view?
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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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Apr 7, 2010
Can someone tell if why when starting an activity with startActivity(intent) , calling getParent() in onCreate() of the new created activity returns a nul ?
Also how could I obtain the parent of an activity created in such a way ? Can a reference of the activity below the current activity in the activity stack be obtained ?
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Feb 24, 2010
I am currently firing an Intent to a Broadcast Receiver which in turns starts an Activity.
Then from the same Service another Intent is fired to a Broadcast Receiver thats in the Activity.
The problem is that the Activity isn't getting the Intent meant for it because it is fired before it is alive and the Broadcast Reciever is registered.
I was wondering is there anyway to make sure an Activity is alive before sending an Intent?
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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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Dec 30, 2009
I am developing an application in which the user require to register first and than got the user page. For that i have made layout and the layout consist many fields, so, i have made part of layout and also made the separate activity for the each layout. The layout like address, phone, etc... After that i have wrote the code for calling an activity and it works fine. It means when i press the "Next" button the another page will come and it will also consist some textview ,edittext and previous and next button. Actually, i want something different like -- When the user fill the first form and he will proceed to next, the content written by the user should not gone when the user press "Next" button. The content should be there which was written by user. And same way i have have 6 pages like that way to complete the registration process. So, have you any idea to solve above problem? I really need your help because right now i stuck at this point. So, please any body help me out of this problem. I would appreciate your help. I am waiting for your reply.
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Sep 7, 2010
As we know, startActivityForResult() used to get a result for a task from parent activity. Here when we click the setResult(). It returns the result to the parent Activity.
Child Activity means it should maintain the persistent state. That is when the users clicks a button on the child activity. It do not finishes that activity and show the Parent Activity. And again i may go to the child activity from parent activity. If the child does not exists it starts a new child activity else it should show the existing child activity with persistent content.
Simply said, my parent Activity starts a new Child Activity. Now both Activities should be alive. How to call the Parent Activity without finishing the child Activity(in other words, How to BringtoFront the parent Activity)? For this scenario,
you can not use startActivity(). Because it creates a new Activity Instance. Not Existing Parent Activity
you can not use startActivityForResult(). Because it finishes the child Activity Instance.
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Dec 14, 2009
Any idea why this doesn't create an activity that looks like a popup instead of an activity that completely fills the screen?
CODE:.............
I assumed that I only needed to set the layout height and layout width to something other than "fill_parent", but it still shows up as a black screen that completely fills the screen.
Ultimately, I simply want to create a popup, but I do not want to use an AlertDialog. Is this possible?
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Jun 28, 2010
When we want to pass data from an activity to a sub activity we use the is there any event handler that handles this?
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Jun 14, 2010
My application supports twitter and needs to open browser for OAuth. When the user clicks the Share on Twitter button, the main activity will create another subactivity (TwitterActivity) to handle twitter authentication issues. Here is a flow graph showing how activities are invoked currently. Main is short for MainActivity and Twit for Twitter Activity. startActivity() OAuth intent OAuth callback finish()Main ---------------> Twit ------------> Browser --------------> Twit --------> Browser As you may notice, after the TwitterActivity calls finish() to stop, it will now return back to MainActivity, but Browser instead. How can I make it return back to MainActivity?
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Jan 28, 2010
I wish to re-use the Contacts application in a way to enable the user to pick a contact and return it to the parent activity (my application's activity).
For achieving this, I want to inquire about the kind of Intent that will be needed to launch the contacts application.
Intent i = new Intent(Intent.ACTION_GET_CONTENT, ?); startActivityForResult(.....);
What should be the second argument here ?
In the deprecated Contacts API, I could use the following snippet, but not sure about ContactsContract:
Intent i= new Intent(Intent.ACTION_GET_CONTENT,People.CONTENT_URI); startActivityForResult(i, reqCode);
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Jun 30, 2010
I want to do some cleanup in a view when the activity is being destroyed. Is there any way to get a callback in the View when the activity is being destroyed? I tried using onDetachedFromWindow, but I'm not sure whether it is correct thing to do.
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Jun 20, 2010
In one of my Activities I have a ListView that displays a list of locations. For each list item I want a little arrow icon that points in the direction of the corresponding location. I implemented this icon by extending ImageView. This custom View has a listener that reacts to changes of the device's orientation by rotating the icon image accordingly. I register the listener in the onAttachedToWindow() method and unregister it in onDetachedFromWindow(). This kind of works but the problem is that onDetachedFromWindow() sometimes gets called only a long time after the containing Activity has paused. Also, the whole layout overall seems a little hacky. So my question is: Is there a proper way to unregister the listeners or would you implement this in a completely different way to begin with?
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Jul 19, 2010
Is there an exception in the lifetime rules for a parent activity that's in the background after invoking startActivityForResult()? From my understanding, in low memory scenarios, the background activities are killed before the foreground. Does this rule still apply even if the background activity started the foreground one for the purpose of obtaining some result?
In this case, I think it would make sense for the foreground child activity to get killed first or to equalize the lifetime of the parent and child.
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May 8, 2009
I basically have three activities X, Y, Z and I want only one instance of each but I want control over the navigation and I can't do that by putting all three activities in one task because of the stack structure.
Here is a scenario, from X I launch Y given a certain "id" which correspondence to specific data in the DB, Y inflates and populates it's views, then I go back to X and launch Y again with a different "id" in the intent, I don't want the overhead of launching the activity and inflating the views again, anyone know how to do this?
I tried using singleInstance, but the problem is that I can't send the result code back to an activity in a different task.
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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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