Android :: Releasing Resources In OnDestroy

Aug 20, 2010

I understand that the system may kill the activity without calling onDestroy(). Say I have a MediaPlayer that runs even when it's not visible, I would be releasing the player in onDestroy() method.Now, if the system decides to kill the activity after calling onPause() and never called onDestroy(), what does it mean for my MediaPlayer? Is it ever released? This is bigger problem for Camera since I think it requires to be released for other activities to use it.

Android :: Releasing resources in onDestroy


Android :: Android - Retrieving All Drawable Resources From Resources Object

Jul 11, 2010

In my Android project, I want to loop through the entire collection of Drawable resources. Normally, you can only retrieve a specific resource via its ID using something like:

InputStream is = Resources.getSystem().openRawResource(resourceId)

However, I want to get all Drawable resources where I won't know their ID's beforehand. Is there a collection I can loop through or perhaps a way to get the list of resource ID's given the resources in my project?

Or, is there a way for me in Java to extract all property values from the R.drawable static class?

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HTC Desire :: Newbie / HTC Releasing Android 2.2?

Jun 1, 2010

I just encountered the space issue on my Desire due to having too many apps installed and i am considering rooting. However i heard that HTC are possibly releasing Android 2.2 with Sense UI beofr ethe end of the month. If i root my desire will i lose the ability to get this update?

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Android :: GC And Releasing Physical Memory

Sep 9, 2009

i dont know if i understand how gc releases physical memory lets assume that physical mem is divided into 4kB pages.i allocate 2000 objects each 2kB long.lets assume they are allocated one after another in physical memory then i release every even object 0, 2, 4 etc.so i released 1000 objects x 2kB.how many physical pages will be released to other processes?

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Android :: Releasing Updates To App / Is It Patching Or Replacing?

Oct 26, 2010

If I publish an update to my app on the Android Market, will the app only "patch" (or only update changes to current application) or will it just replace the old application with the updated one?The reason is because for my app I need the user to retain some information (such as a database) on their phone that is gathered from the user on the app's first setup and not have to ask the user to repopulate this data on every update.

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Android :: MAPPn Is Releasing New Themes For AHome

Jul 21, 2009

Los Angles, CA.,-July 20, 2009 mAPPn just released new themes for aHome users this summer.If you're a golf fun, check out the golf theme! You're gonna love it for sure! It's based around golfing where the icons are realistic golf balls. Everything is custom made including tabs, dock, icons and clock.If you're a sci-fi lover, try out the Sliver Orbs! It Keeps a nice futuristic look while has a pretty clean minimalistic look to your phone.If you want to try something cool and different, download the Pixel theme ASAP! The great 8-bit look from the past makes this theme extremely unique from all the other themes in android market.If you like Asian culture, mAPPn's new "Asian" theme is definitely your first choice. Al the icons, dock, tabs and clock are custom made from Asian style items, such as abacus,tea port, writing brush and Biwa.

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Android :: Google Account To Use For Releasing Company App On Market

May 22, 2010

I will be releasing two applications soon, one for my company and one for me. Publishing app on my own is straightforward, but I'm not sure which account to use for the company.What practice do you use in your company?I only see one solution, creating a special google account like android@company.com shared by the company Android devs.

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Android :: Request To Google And Releasing Paid App From Different Country

Nov 5, 2009

I am planning to release my app (which i have been pllanning to do so for quite a few time now, waiting for the expansion of google checkout to happen).I am from India and I am planning to release the application using my friends UK Bank account.Is this advisable? Are there any things that I should take care of?Also is there any chance of google expanding the google checkout or in introducing new payout options like paypal?I have been waiting for the support for quite sometime and I am very much depressed on the issue that google is still not expanding the services, ive sent numerous mails to them asking for atleast the estimated release date but in vain.

Its been nearly an yeaar since android is relmore than an year since android phones have been released and still there is such slow progress. iPhones allows developers from most of the countries to publish their apps and customers from any country can buy the same, i think they can even do it through itunes.I think this is going to hurt the progress and development of android big time. If apple can do it why not google? I have been expecting some response from google atleast on the estimated date, so that we can plan accordingly.

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Android :: Lost Keystore - Continue Releasing New Versions To Users?

Jul 9, 2010

the least painful way to somehow continue releasing new versions to my users? I can't sign with the old keys anymore.

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Android :: Releasing Demo Application From Paid Version - Fork Code?

Jun 4, 2009

We have a paid app in the market place, we would like to release a demo of the paid app. I was hoping we could just recompile w/ the same package name, but apparently that does not work. I have tried manually changing package name etc, but it is a chore, and it seems that several things that automatically happen in eclipse cause more harm than good when renaming the package name. Which brings me to my next question. If having a new package name is the only way to accomplish this. Is there an easy way to fork the paid app, where keeping the changes synchronized is easier? Some kind of Source Control?

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Sony Ericsson Xperia X10 :: Releasing Mini Display For Android 2.0 Phones And Higher

Sep 28, 2010

Sony Ericsson's Mini Display For Android Phones Looks Like An iPod Nano.It says it will available in Q4 this year.Possible motive for delaying the update? Probably not.But the 2.1 update will most likely come out in Q4 because in my opinion, why release an accessory for your phone that won't even work >.>But this seems kinda pointless unless your phone is on silent or is in a backpack/purse where you can't hear it.

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HTC EVO 4G :: Releasing Firmware Update For 30FPS Cap

Jun 20, 2010

I ran across this great forum post over at xda developers forum, and they are encouraging us to send HTC emails to tell them to release the firmware update for the phone to fix the 30FPS cap which would be great because then there would be nothing holding developers back from making great apps for the phone, and the phone itself will run better too... According to the last update on the OP's post from June 14th, the update is coming but let's continue to write into HTC so they'll send it out asap!Source: Evo capping all graphics to 30FPS:The reason why graphics performance sucks right now - xda-developers

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Android :: Service.onDestroy() Invalid?

Sep 30, 2009

I use AlarmManager to restart my service, code is:

CODE:........................

After 5 seconds, BootCompleteReceiver will startServcie(), but only see onStart() not onCreate() calls.

Is the way of destroying the service wrong? BootCompleteReceiver is written in AndroidManifest.xml

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Android :: Testing Low Memory And OnDestroy

Jun 21, 2010

Testing onDestroy.

Q: does using a lot of RAM in one application always lead to onDestroy being called on Activities in other applications?

To try and figure this out I created two separately installed applications. The first just logs its lifecycle transitions and the second allocates a chunk of memory each time you press a button.

What I saw was the second application eventually suffered a fatal Out Of Memory Error force close. The onDestroy method was not called on the first logging application and when I switched back to it onResume was called.

My conclusion is that using a lot of memory in a single application will lead to a fatal Out Of Memory Error without onDestroy first being called on Activities in other applications. The documentation left me expecting an onDestroy on the logging application since the foreground application was trying to allocate more memory.

Does the above sound right? What's a good way to test the onCreate/ onDestroy lifecycle methods as they relate to low memory?

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Android :: OnRestart() Being Called After OnDestroy()

Jul 21, 2009

Every once in a while my activity gets restarted after it's destroyed instead of being created again. I.e. I see:

CODE:..........

instead of:

CODE:............

Looking back in my log I can see this happening periodically, but no apparent pattern to it. This certainly isn't in the state diagram, and needless to say this doesn't make for a happy app.

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Android :: OnStop OnDestroy Called From Back Key Or Not ?

Sep 17, 2009

Each time I switch the orientation of the device, onStop() and onDestroy() are called. They are also called when I close the Avtivity (dismiss()), and when I press 'back' key. In onStop() or onDestroy() methods : how can I know how I can here ? I'd like to run some code when I close the Activity (back button), but not if I change screen orientation

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Android :: Content Provider OnCreate OnDestroy

Jun 30, 2010

when writing a ContentProvider I have to implement the onCreate()-method, in which I establish my database connection. But to write the changes I made to the database I have to close the database on some point. Does something like a onDestroy()-method exist for ContentProviders or is there some intent I have to listen to, which is fired before killing my process?

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Android :: Hide Activity On BACK Key Without OnDestroy?

Oct 28, 2009

When user presses BACK key, my activity's onDestroy is called and then it is killed. Is there a way (by overridding Activity.onKeyDown??) to simply put the activity into background without killing it? I want the BACK key to act like the HOME key (which doesn't kill my app), except I want to show the activity immediately below my activity.

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Android :: OnDestroy Not Called After Adding Texttospeech

Apr 13, 2010

I added TextToSpeech to my app, following the guidelines in the following post:

http://android-developers.blogspot.com/2009/09/introduction-to-text-to-speech-in.html

and now my onDestroy is no longer called when the back button is pressed.
I filed a bug report regarding this: http://code.google.com/p/android/issues/detail?id=7674

Figured i should also ask here if someone else has seen this, and found a solution?

It seems that it is the intent that causes the problem, i.e. the following:

CODE:................

If I skip this intent, and just go ahead and create a tts-instance, it works fine.
Any clues to what is wrong with this intent?

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Android :: Service Dies Without Calling OnDestroy

Dec 15, 2009

A service is setup by an activity with startService(service_intent). This service is meant to run 24 hours a day. After some amount of time, 5 or 6 hours sometimes but its not predictable, the service is killed.In the database log, the destroyed message does not show up and the notification #1 is not cancelled. Android makes no attempt to restart the service. The database log will show the startup of the replacement service if I trigger it by visiting the activity. What can I do to keep this service running or at least get it restarted by android automatically?

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Android : Listener - Back Button - And OnDestroy

Mar 13, 2010

I have an application with a single Activity implemented as a singleton (in the AndroidManifest). It implements a Listener I wrote. When the application is first run the Listener works fine. When I use the "home" button to minimize it, then open it again it's still fine.

But when I press the back button then run it again from the application icon, the Listener doesn't work fully. The code runs and the Listening methods are called as usual but none of the UI elements that are listening update. It requires a restart of the phone to get the listener working again after this point.

I know the "back" button doesn't really close the application, per se. But resetting the phone sure does! Is there a way to use the onDestroy() or similar method to call a function that actually closes the application? I'm asking because restarting the phone is the only way to get the listener back so I was hoping I could do that programmatic ally.

For example, my progress bar is a member variable of my Activity, but onCreate() I do "progressBar = (ProgressBar) findViewById(R.id.progress_bar);" Is this perhaps creating a separate instance of it or something?

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Android :: Order Of Statements In OnDestroy() Method

Feb 3, 2010

If I override my main Activity's onDestroy() method in order to recycle a bitmap when the screen is rotated, should I call super.onDestroy() before or after myBitmap.recycle()? Does it matter?

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Android :: OnActivityResult No Longer Being Called After OnDestroy

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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Android :: Activity Being Killed - OnDestroy - On Orientation Change

Apr 5, 2010

I am working on a MVC implementation for Android (to be subsequently hosted on SF and/or GC).

It works like this:

Activity (View) <=> Application (Controller) <=> Data (Model) <=> Persistence (DB/Network etc)

The scenario is:

1. Activity launch (main/launcher)

2. Notifies Application about performing a data transaction

3. Upon receipt of data response, controller devices which Activity to launch (or update existing)

4. Application has overridden the method onConfigurationChange

Problem: When the orientation is changed, the Application is notified about onConfigurationChange but:

a) The "current" activity is Destroyed and recreated -- which is fine to some extent b) The new instance which is created is automatically => onCreate, onPause, onStop, onDestroy.... now that's catastrophic.

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Android :: Two OnCreate (and OnDestroy) Invocations On Orientation Chage

Jan 4, 2010

With following simple code (on clean, new android project):

CODE:..............................

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Android :: Why Does App Not Get OnDestroy When Exited But Then Receives An OnCreate When Relaunched

Sep 11, 2009

Why does app not get onDestroy when exited but then receives an onCreate when relaunched?

Here is the trace. Launched app

It received onCreate and the other expected on calls for a launch. Now, leave application with the home button and it receives onSaveInstanceState onPause onStop

And returns to the main Android screen (the one with Google Search at the top) Launch the app again and it receives onCreate onStart onResume

The docs say onCreate is Called when the activity is first created. But here it is never destroyed but created again. There are many objects that never got GCed because the app was not onDestroyed?

Is this a memory leak? What have I missed? Or should I assume that onCreate can be recalled for an already created app.

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Android Fragment OnDestroy Called Twice During Orientation Change?

Jan 19, 2014

why onDestroy is being logged twice for the fragment class in the the following code when the orientation of the device changes. Its logged once for the activity class, but twice for the fragment.

Code:
public class ExampleActivity extends Activity {

protected String LOG_TAG = ExampleActivity.class.getSimpleName();

private FrameLayout mFragmentHolder;[code].....

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Android :: OnStop And OnDestroy Aren`t Invoked After Calling Finish()

Oct 14, 2010

i`ve got some problems with finish() method. I expect what after calling on my Activity finish() method onStop and onDestroy must be triggered(or am wrong??), in majority of examples they are, but Scenario: - reboot phone - launch activity - invoke finish() onPause is triggered but afterwards they are no calls to onStop() and onDestroy()I`ve noticed, that those calls are triggered after launching any other activity.

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Android :: How To Save Value OnDestroy Or OnStop / Program Launches Back Again?

May 6, 2010

I wonder if I could save a value (in my program its an index) so I could call it back when the program launches back again (even if the program destroyed) and the user could start from where finish.

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Android :: Implementation Of OnDestroy For Service Containing Worker Or Backround Thread

May 26, 2009

I'm implementing a service that contains a thread to handle all time consuming operation. My core service logic is in a different thread than the ui or main thread. According to the Android document, when the OS plans to free some system resource, it will call onDestroy () on the service and only when onDestroy() returns it will kill the process hosting the service, thus giving opportunity to the service to cleanup.Now, when onDestroy() is called, I want to send a message to my service thread to do the necessary cleanup. Only when the service thread acknowledges that the cleanup or shutdown is complete, onDestroy () should return. I could find a way to send asynchronous messages to threads and the corresponding processing of the messages, but not able to figure out how I need to implement onDestroy(), such that it would send a message to the service thread and should wait for a result, before returning.

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