I have next problem, I have got parent activity and few sub- activities, if app goes to the background by pressed HOME button for long time, all children will be killed, and my app restart from parent activity.
For example: A1 - parent, A2,A3,A4 - sub-activities. A1-->A2-- >A3(top), from A3 I go to the background (HOME). wait 30-40 min and
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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.
I have a simple ListView and on that ListView I have placed a number of custom defined Views. The CustomView has ImageView and two TextViews.
The CustomView also has a "stateful drawable" as background, so that the background image (a 9-patch) changes if you press the Row in the ListView. When pressing the Row, the background image changes to a Red-ish thing.
The problem is that when the background changes from the default greyish, all the Views in the CustomView (ImageView and TextViews) still have their greyish background and thus creates very ugly greay boxes on top of the now redish background.
What is the best way to solve that problem? I hoped that such things were handled automatically (as it is done in for example .NET), but I was wrong it seems.
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?
View 5 Replies View RelatedI have a simple LinearLayout. When I add the android:background to the LinearLayout, the TextView is no longer visible. What am I not understanding?
<LinearLayout
android:id="@+id/LinearLayout01"
android:layout_width="fill_parent"
android:layout_height="53px"
android:background="@drawable/glossy_black_top_bar" >
<TextView android:text="This is the Title"
android:id="@+id/TextView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:textColor="#FFFFFF">
</TextView>
</LinearLayout>
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?
View 2 Replies View RelatedI'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...
View 3 Replies View RelatedMy 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...
View 2 Replies View RelatedI 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?
View 1 Replies View RelatedI 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.
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....
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".
I want to open new child activity in the parent LinearLayout. Just similar like Tabs.
View 1 Replies View RelatedMy application calls Runtime.exec() to launch an executable in a separate process at start up time. I would like this child process to get killed when parent activity exits. Now I can use onDestroy() to handle regular cases, but not "Force quit", shutdowns from DDMS, or kill from the console since those don't run onDestroy(). The addShutdownHandler() does not seem to be invoked in these cases either. Is there any other hook or signal handler that informs my activity that it's about to get terminated? As an alternative is there a way to have the system automatically kill the child process when the parent die?
View 2 Replies View RelatedI want to place a common banner and menu on each Activity with footer too.
Can anyone guide me how can I implement master and child page like asp.net in Android?
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.
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:..........................
In my app i'm setting background to each child views in listview. So that listview default focus ( orange color ) is not focusing. Is there any way to set both ( listview focus & child view background)?
View 1 Replies View RelatedI created an application which enables the user to set whether he wants to receive notification while the application runs in background mode. If the notifications are enabled an activity should be started (the dialog should appear on the screen).
I tried to enabled it the following way:
CODE:...........
This is the method from main activity. When onPause() is executed isRunningInBackground is set true.
When I tried to debug it when the main application was running in the background the line
startActivity(intent) had no effect (the activity didn't appear).
Does anyone know how to midify the logic in order to start an activity from the main activity when the main activity is running in the background (after onPause() is called)?
I have a ListActivity I display from a parent activity. When the user selects the desired item from the list it supposed to return to the parent activity. Only when I call finish, the app goes away (doesn't quit) and displays the Android Home page. If I debug, the application doesn't die, it just sits on an MessageQueue.Wait().
I have a break point right before the finish() call and one in the first line of the OnActivityResult. When I press continue from the first, I never see the second on in onActivityResult.
I have other child activities in my app that don't display this problem. However this is the only ListActivity I have that I am trying to return from. I do call finish from onListItemClick. I'm wondering if that is not allowed since that is responding to a view event. However if I don't do it here, how can I get back to the parent activity. Below is the code snippet of my finish method.
CODE:...................
Is there any way to query a root view of an activity for all of its child views even before the root view or its children have been inflated? I guess what I'm looking for is whether a view knows ahead of time what children it will have before it gets inflated, and can I get that list in some way. Bizarre I realize, but I think it will help me with some unconventional automation testing I'm working on. I haven't found anything in the API like this.
View 1 Replies View RelatedCurrently my application allows the user to set the application to run in full screen. I than check in every activity at onCreate() if the user has set to make the app run in full screen. Is there a better way to do this? I have many other settings that I do and I find this method a little bad in terms of code design. Is there a way to set full screen for the lifetime of app or until I set it back to not full screen? One way to do it would be to have a custom Activity class that does these checks and all my activities can just implement it? would that be slow is it recommended?
View 10 Replies View RelatedIs there a way to 'preload' a user interfaces but to not display it until I am ready?
I have a service which has a receiver to listen for action_screen_on to occur. When that occurs, I would like to load an activity. However, as it is now, it takes about 1 second to load. I would like to preload the layout in advance so that when the screen is turned on the layout loads as soon as possible.
What is the lifetime of an app's global android.content.Context object? Does it last until the last component of the app is terminated by the Android runtime?
View 2 Replies View RelatedI'm extending ActivityGroup class and implemented a custom tabHost and widgets for my app. Can someone shed a light on how are the Activities fife-time inside an ActivityGroup?.
Im getting a weird behavior when using the following code to send a new intent to the current sub-activity, then change tab, and getting back to original tab. (TAB1 -> TAB2 -> TAB1)
CODE:.......
What i see from debug..
onSaveInstanceState() is called on TAB1, then TAB2 is current subActivity, but when going back to TAB1 onCreate() is called.
onCreate() is not called with the same test without using the onNewIntent() described above.
What is the lifetime of a ContentProvider in Android? After onCreate() is invoked, will the ContentProvider persist unconditionally for the lifetime of the process?
My ContentProvider manages a list of records, but only 1 is designated "active" and will be accessed by different applications a lot. I was wondering if it's safe to cache the index of this active record in memory as a member of my ContentProvider to speed up lookup.
I recently formatted my computer and updated to Windows 7. I backed up my keystore and tried to sign my apk with it but it gave me an error that said my certificate expires in 22yrs. which is just shy of what the market requires to upload the apk. So now I am stuck not being able to update my app... Is there a way to extend the lifetime of certificates so that I can update my app?
View 1 Replies View RelatedHow to change background of activity and background of the application name at the top of your activity?
View 2 Replies View Relatedi have set the background of an activity with a green gradient png image.This working fine almost always but some times during navigating to an activity its background is becoming black! i am not able to reproduce it with any specific operation, also not getting how to debug or fix it.
View 3 Replies View Related"Note that when you write an activity, you can make it stop or continue running when it is moved to the background (see onStop() in Activity Lifecycle). For activities that download data from the network, it's recommended to let them continue downloading so the user can multi-task." As far as I was aware I had to create a service if I wanted to have a background activity such as a media player, internet download, or processing of data in files on the SD card continue when the activity was no longer in the foreground.I went and reread the onStop information on the "Activity Lifecycle" page, which was referred to. But I didn't find any mention of how an activity might continue to run in the background after onStop was called.
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