Android :: Recent Apps Change In 2.2 / Brings Main Activity To Foreground
Jul 24, 2010
The recent apps display seems to function quite differently from earlier versions on 2.2. Try the following for instance: 1) Open an app 2) Click on something that takes you to another activity in the same app 3) Press the home button 4) Press and hold the home button to get the recent list of apps - select the app you chose in step 1 5) You'll be taken to whatever activity in that app is specified as the main/launcher Activity, rather than the Activity on top of the stack (as it was previously) It makes it appear to the user that the application has exited when the home screen button was pressed. I don't have my app set to clear history on launch or anything like that, and I can replicate it on the emulator and with any app on my device (Contacts, Gmail, Engadget etc) Anyone else notice this? Anyone know any reason for the changes? I must admit I quite dislike the new method.
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Jul 13, 2010
I think I already know the answer to this, but I just wanted to confirm (I think no horrible ramifications)...
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Nov 13, 2009
I think I've missed something in how Android is supposed to work! I have the main Activity with a menu option that opens the preferences screen. What I need is a way for any changes that were made to be communicated back to the main Activity as soon as the preference is activated. At the moment the only way I could get it working is by using the intent data that gets sent back when the prefs activity closes but this isn't really enough. The reason why it needs to be instantaneous is that one of the preferences is a 'Clear cache' button, so I would like the data to be deleted when the user requests it and no later!
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Apr 20, 2010
I have an application consisting of two activities (call them Display and Preferences) and one service which listens for incoming phonecalls. When it detects one it launches the Display-activity with a delay of 3sec in order to let the PhoneApp launch first. The Display- activity is transparent so the user can still use the PhoneApp as normal (ie answering the call) even though my Display-activity is "on top". So far so good
Now to my problem. Lets say that the Preferences-activity is active when there is an incoming call. The PhoneApp is launched on top of the Preferences-activity as expected. However when the Display-activity is launched the Preferences-activity pops up as well, hiding the PhoneApp. My question is if it is possible to work around this in some way? Since I do not want my Preferences-activity to block the PhoneApp and hence making it impossible for the user to answer the incoming phone call.
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Apr 6, 2009
After a long time with one Activity being my app's entry point, I just changed the manifest to point to a different activity to be the entry point. But the G1 is doggedly trying to load the old activity - even after uninstall, install, reboot, etc. and acore throws a security exception. Code...
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Mar 3, 2009
Who knows how I can make Activity visible from invisible process? .....
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Apr 22, 2010
Is there a way to call startActivity(Intent) without the newly started activity displacing the current one as the active, foreground activity?
If not purely so, are there near approximation to this effect that can be done, such as mimicking a back keypress event right after calling startActivity()? If so, which means is preferred?
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May 2, 2010
I'm getting the outgoing number using BroadCastReceiver and then starts a Activity. but my activity runs in the background??? how can i bring it to foreground? ...
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Apr 19, 2010
I have seen a lot of posts saying that people once they rooted they lost access to some of the apps they had with android 1.5.This is an HTC hero rom that was ported over to the eris that I am running right now. With this rom which is running 2.1 you will get access to the protected apps on the market (the apps that come up missing). Read the known bugs section though. Included is an app that circumvents the power down hang and I actully like using it more then shutting down the phone the convential way hope this helps. People running eris with 2.1 don't have access because it has not been officially released yet. As always do a Nandroid backup if you decide to use this ROM.http://forum.xda-developers.com/showthread.php?t=663893
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Nov 11, 2010
I have had my HTC Desire for about 2 months now and I have just accidentally learned that if you hold down the home button for about a second or 2, it brings up a neat little 'last used apps' screen. I am using LP so i don't know if it is part of Android or the launcher but I found this pretty neat.
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Oct 6, 2010
I want to write a service for Android platform that is notified when the current foreground activity changes. Basically the service should do some tasks only when the top activity changes. Is there any way to subscribe and to be notified when this kind of event occurs? Or there is no possibility and the service should poll from time to time the list of running activities and to check what is the foreground activity ?Not preferable solution...
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Apr 22, 2009
Is it possible to get listed the apps or activity which are actually displayed on the screen of the android mobile. I need to display a text box on some event when no acitivity is displayed, excepting the home screen.
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Oct 6, 2010
Is there a native android way to get a reference to the currently running Activity from a service?
I have a service running on the background, and I would like to update my current Activity when an event occurs (in the service). Is there a easy way to do that (like the one I suggested above)?
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Feb 17, 2010
Maybe it's easy, but I couldn't really figure this out right so far... I got a BroadcastReceiver waiting to get triggered by the AlarmMangager - this works fine.
Now: because the event, if it occurs, needs to refresh some elements on screen of the main Activity, I would like to send an Intent from that background BroadcastReceiver to my Activity - but only if it is currently in the foreground, aka active.
If it is not running or not visible, I don't care - and the last thing I want to do is start the Activity by my intent! I handle repainting of the views in my onResume method, so I don't care at all.
EDIT: my BroadcastReceiver is waiting for alarms that must be notified to the user. So, it must be there and declared in the manifest. The problem is: it will have to decide whether the mentioned Activity is currently up in front or not.
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Feb 9, 2010
I defined an activity ExampleActivity.
When my application was launched, an instance of this activity was created, say it is A. When user clicked a button in A, another instance of ExampleActivity, B was created. Now the task stack is B, A, with B at the top. Then, user clicked a button on B, another instance of ExampleActivity, and C was created. Now the task stack is C, B, A, with C at the top.
Now, when user click a button on C, I want the application to bring A to the foreground, i.e. make A to be at the top of task stack, A, C, B.
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Sep 22, 2010
How to bring stop activity to foreground (restart) by itself?i use Broadreceiver and intent to restart my activity.but always start two activity (include original activity)how to restart my original activity?
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Mar 29, 2009
I launch my TestWebView activity. After my web page is loaded, I put the app in the background by pressing the Home key. Then I bring the TestWebActivity back to the foreground. Unexpectedly, TestWebView's onCreate() is called when I bring the activity to the foreground. But onDestroy is never called. This same thing happens every time I tested. It appears the old TestWebView was not completely killed so there are possibly duplicate web clients running.
My code: .....
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Oct 19, 2009
In my application i wait on socket for network events.On some events i have to bring activity into foreground(make activity as running) if at all it is not in the foreground.
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Jul 6, 2010
I have a function that needs a Surface object to work. I'd like to be able to call that function from a background Service without starting a foreground Activity. Every Surface source in the API that I can see, though, requires a View that's laid out before the Surface becomes available. Are there other ways to create a Surface that I am missing, and can you point me to them?
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Jul 21, 2010
I'm trying to figure out a way to send touch events to the foreground activity. Essentially I want to write something that allows me to run it from the shell and just say "I touched this co-ordinate", so that I can automate some UI tasks for testing. Essentially what Monkey does, but application agnostic.
I think that android.view.MotionEvent holds the key, but I'm not sure how to run something without view so that I don't interfere with what is on the screen. Perhaps with a service, but I'm unclear how that would work.
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Sep 25, 2010
My Activity is running on the foreground and my Activity is getting pushed to background when I hit on the home button... I am trying to display the pop up at certain intervals, in this case as my activity is running on background when I try to display the pop up but thats not shown on the foreground.
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Feb 4, 2010
I currently have an application that naturally gets pushed to the background when the home key is pressed.
The activity losses focus but continues running in the background.
So I want to know is it possible to bring the application back to the foreground when the user presses the green key (call button) on the device?
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Jul 19, 2010
Im writing a program that offers a quick reply dialog upon receipt of an SMS.
However, I am getting an unexpected result. When I receieve an SMS, the appropriate dialog activity comes up displaying the correct phone number and message, however there is a second activity behind it that is the 'default' activity in my program (it is what opens when i launch my application)
I do not want this second activity to come up. The quick reply activity should come up by itself over top of whatever the user was doing before.
The 'floating' activity:
CODE:.........
The call to the activity inside an onReceive()
CODE:..............
The Manifest:
CODE:.................
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May 16, 2010
I'm writing an application that starts with a loading activity. In the loading activity the app requests html from web and parses the html, then it sends the parsing result to the main activity. The main activity has several tabs, and contents of these tabs are based on the result of parsing.For example, the result of parsing is a list of strings ["apple", "banana", "orange"], and I need to pass this list to main activity, so that the main activity can create three tabs named after three fruits.I would like to know if there is any way to pass a list of strings among activities, BTW, is it the common way of do this?
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Jan 10, 2010
I 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)?
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Dec 4, 2009
Need an example of how to create/start a new activity from the main activity. I have a button click event on the main layout. Originally I just used setContentView(R.layout.secondactivity); which brings up the layout but I don't think that is correct since the secondactivity class is not instantiated at this point yet. I have looked for such an example and can not find one.
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Jan 10, 2010
I hav an app that is like a relational database. There is a main app activity that users manage things with. There is also a widget that will display important info and add data to the database. When the widget is clicked, a configure class displays a way for the user to edit data. When the configure activity is done, the widget is updated and instead of going back to the home screen, the apps main activity is started. I can't find where the main activity is being called from. Wouldn't I have to create an intent and start Activity() to get this behavior? When done updating, I want the home screen and not my app.
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Feb 28, 2010
My app has 2 activities - A and B. From homescreen I launch A, from A I launch B. The activity stack looks like this: A-B. Now I press HOME button, and from homescreen click again on my app icon, which launches A and adds it on top of the activity stack, which now looks like this: A-B-A. But I just want to bring my application to foreground, is that possible in Android?
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Nov 7, 2010
I have a main activity, then i call a new activity intent from this. Lets call this SecondActivity. Then from my secont activity i call a browser intent. Then my browser intent call my second activity's onNewIntent method.Evereything work fine, but when i click on "back" button on my phone on my second activity, i will not going to my main activity, but the browsers activity, why?
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Jul 15, 2010
When I run my app, it works fine but if I switch back to home or another application, I want to go back to my app quickly by using the recent activity list (on my phone this is done by holding down the home button). For whatever reason, I never see my application in this list of apps. All other apps when they are running or have just recently been closed show up ( the menu shows 6 icons for the recent apps). Why doesn't my app show up on this list? Is this something you need to do programmatically?
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