I created an application which is displaying camera preview. When the application terminates I noticed that some processes are still running. Also if I try to run the original camera application it displays an error (obviously due to the active process which belongs to the custom application).
Does anyone know how to release all resources when application ends?
View 5 Replies
I created an application which uses camera and during the appplication execution the screen is always on.
In the onCreate() method I added the lock code...
But after the application termination the screen remains on all the time and if I run the camera application it encounters an error which obviously appears because the camera resources are not released.
Does anyone know how to release all resources on application termination?
I have an application that consist of several Activities. When the application starts, some alarms are scheduled using AlarmManager and some services are started:
AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
a.setInexactRepeating(...)....
I would like to know any way to guarantee every service is stopped and every alarm is unscheduled when the user exits the application. The problem is that the user can leave the application from different Activities, and I don't like the idea of overriding the onDestroy method in every Activity. Is there any known Intent I can receive when the application ends? I've also found that an Android application can have a class that extends from Application, with a onTerminate method:
public class MyApplication extends Application {
@Override public void onTerminate() {
... } }
But the documentation is very clear: "never depend on this method being called; in many cases an unneeded application process will simply be killed by the kernel without executing any application code".
All I'm baffled as to how this Market works. I was expecting a different version of the Market by now but things still seem awry. Say I have two apps - one free, one paid. I release updates to both. The free one is at the top of the list, but the paid one is down in the depths of the list. That kind of sucks. Is this really how it works? Or is something temporarily broken.
View 6 Replies View RelatedI'm trying to figure out a way to programmatically determine if my build was built in debug mode vs. release mode. I'd like to hide some items in my settings screen if it's release. When I build my app in Eclipse I'm building by default in Debug mode. However, when I build the app using the command line, I build it in release mode and sign the app using the jarsigner tool.
I've tried using:
PackageInfo appInfo = manager.getPackageInfo("com.adobe.psmobile", PackageManager.GET_SIGNATURES);
to test if
appInfo.signatures[0].toCharsString()
matches my debug signature and that didn't seem to work.
I'm now trying to see if I can introspect the app's KeyStore, to match the default debug alias described here:
http://developer.android.com/guide/publishing/app-signing.html of "androiddebugkey"
but I haven't figured out how to retrieve the app's KeyStore yet.
After finishing my android application development I used the command showing below to get private key, but it shows some errors such as "The Keystore was tampered with or password was in correct".
$ keytool -genkey -v -keystore DEBUG.keystore
-alias alias_name -keyalg RSA -keysize 2048 -validity 10000
Is my problem with DEBUG.keystore? Should I need to generate another keystore for public release?
I have created a subclass of Activity, 'CustomActivity', that overrides the onCreateOptionsMenu and onOptionsItemSelected methods. In a couple of other applications I have extended this subclass to provider a common menu for each activity. Is it still possible to access the resources from this Subclass? By default it uses the resources from the current activity (Strings, xml layout etc.).
View 7 Replies View RelatedHow does one go about listing the resources that are available in an application?
For example, I would want to find the names of all files under /res/ xml.
Reflection on the R class didn't seem to work since the identifiers are static constants. R.xml.class.getDeclaredFields() doesn't return any fields.
The AssetManager didn't seem to work either because these are not raw assets.
Does anyone have ideas or examples?
I have big files to integrate into my application (videos), and thus for not not that my application occupies all the internal memory of the telephones, I saw that it was possible with Froyo to install the applications on the SD card.
I thus have to test this solution and my application settles down well on the SD card, the only problem it is that the system installs all the same my files videos (which are placed in the file /raw) on the internal memory of the telephone. Thus my question it is where to place my videos or where to make so that these also settle down on the SD carde ?
So I'm struggling a bit with what is probably a fairly basic concept.. Activity Lifecycle.I have read a bunch of thread on the topic, and I feel I understand well both the functionality, and rationale behind the lifecycle model implemented for Activities, but it raises a bit of a problem for me. My app (game) has a couple of distinct Activities for various sections:
1. The TitleActivity is a very small Activity that just launches a GLSurfaceView and renders a startup logo.I use this to detect the OpenGL capabilities of the device (eg so I know if it's using a software renderer)
2. The LaunchActivity is the main menu screen where the user can access options etc and start a game
3. The GameActivity will either launches a GLSurfaceView or a standard View depending on hardware capabilties.
The issue I am having is that I want to pre-load some "slow-to-load" resources, specifically audio, in the Title Activity so when the Launch Activity renders I can play some background music.I have the concept of a "media library" which I use throughout the game.Because of memory limitations in the SoundPool, I have limited this to only absolute real-time sounds and all others are played using mulitple instances of MediaPlayer.Hence my media library has a bunch of pre-loaded MediaPlayer instances which I access regularly during game play.. so it makes sense to have a centralized access point for all audio.All fine, however the problem is that when I launch one activity from another.. for example the TitleActivity starts the LaunchActivity (via a call to startActivity(Intent...)), the former goes through the onDestroy stage of its lifecycle.Now logically I had assumed that if I allocate a bunch of resources in the onCreate of an Activity, I should clean them up in the onDestroy, however in the case of my "media library" if I load up the audio files in the onCreate of my TitleActivity they will be torn down when the LaunchActivity is started because the TitleActivity will have its onDestroy() method called.
The code I am trying to implement includes a service and an application. When the application is first launched, it starts the service using the
startService(svc_name) call. Here svc name is an intent pointing to the class that runs the service.
I want to share a resource(file/socket connection) between the service and the application. For example one writes to a file and another reads from it. I am unable to get proper sync between the service and app. Could you please let me know how this can be achieved?
The Android documentation says that best practices are to make two drawable directories - one for HDPI and one for MDPI. It also says that if the MDPI directory doesn't exist and a MDPI device is running the app, it will scale down the HDPI ones so everything looks good. Is there any reason not to just make one high resolution set of graphics? One con that I can think of is performance issues and one pro I can think of is only having one set of images for your app.
View 1 Replies View RelatedI have written an Android application that I am about to release, but I would like to have a 2.1 version with multitouch and a lower API version without. However, if I simply just use the minSDK setting, the 1.6+ version would show up in the market with the 2.1 version on 2.1 phones. Is there any way to release for a specific range of OS versions?
View 3 Replies View RelatedIn 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?
I use the gallery view extensively as a full screen pagination mechanism. It works really well for me without having to create a brand new control.
I would like to add a little elasticity at the ends (much like the iPhone homescreen). How could I go about doing this? Any hint as to which method I would need to override/modify?
I want to do an animation with several image-files, and for this the AnimationDrawable works very well. However, I need to know when the animation starts and when it ends (i.e add a listener like the Animation.AnimationListener). After having searched for answers, I'm having a bad feeling the AnimationDrawable does not support listeners..Does anyone know how to do frame-by-frame image animation on Android?
View 4 Replies View RelatedI am having difficulties with the lifecycle of the opengl context. While rendering my scene and the user hits the back button, home button or another application opens in front of my application, my app is still running in the background.
So when my application comes to the foreground later on (user relaunches it or the app that was opened on top of it finishes), my application crashes and leaves me nothing but a GL stack trace which i can't properly decipher.
For rendering i use the GLSurfaceView and therefore delegate the onPause and onResume. The crash happens on the first call to glDrawElements(..).
I have tried to reload my resource (geometry/textures etc.) on onSurfaceChanged but with or without reloading... The problem persists.
This behavior can be observed on all AVD versions of the emulator as well as on the G1.
Here is the gl stacktrace i get.
CODE:.............
I have an already built application and I want to add a feature that has to be started when a call ends.
How can I achieve that?
I thought that declaring in my manifest something like this
CODE:............
Could be enough, but what kind of intent I have to put on the filter?
Looking in the documentation I found only the intents that detects when a call is started.
It happens that the user click on enter where i dont want to include it as a part of my input the string can end with 3 times so just replacing one wont do the job
My solution was:
CODE:........
Or just to point there without the new but i want later to dump the garbage. Or at least to dump values to the gc now ....
Im tring to simulate a slideup animation.The idea is to slideup and slidedown the tablelayout with the id searchForm when pressing the button so that i can use the extra space for a list. I managed to slideup the searchForm and the button and the list seems to be visible but after this i cant click the button, here's the code responsible for the slideup animatio:
CODE:.......................
Here's the xml that has the view elements:
CODE:.................
I'm looking for a way to resume my activity (which makes phone call) after call ends by user. Currently after user ends a call, it always returns to the phone's native call-log screen instead of the activity that originated the call. Is there any way to prevent or customize this?
View 3 Replies View RelatedI am using a progress bar in android, so that till my data is loaded, user is getting a proper feedback of what is going on.
The code for the bar is below:
CODE:............
The setSelected() method is inserting data into an array list, and then creating an array adapter and then using a list view to show those items. so when I put the setSelected() method in progress bar, it shows the loading circle, but once loading is done. Nothing is displayed in listview. But if I take out progress bar code (thread and run method), and simply call setSelected() method, the listview successfully declares the data. so far it concludes that the progress bar code is doing some thing...so wanted to know am I missing something to add in or take out from the code. I need to the show progress bar as I am reading data from online source and it takes time , which may make user uncomfortable.
On placing images(back and forward images) at two end of my gallery view ,i have gallery to list menus to scroll horizontally,and this gallery is in RelativeLayout how can i get the images at two ends of gallery without scrolling.
View 2 Replies View RelatedIf I change one imageview's source to another (and thus changing the image) but then have more changes occur within the method and such. How do I force it to refresh to show the changes before the method ends? (As waiting for the method to end to show the changed images is not good for my purposes at all)
View 1 Replies View RelatedI have never used android before getting the Epic so please don't flame me on this one. Is it normal for the browser to never end on its own? When I exit out of the browser I have to kill it from task manager every time.
View 11 Replies View RelatedI've read around that with Froyo you can go into Settings> Accessibility and turn on a feature called Power button ends call. Fairly obvious what it does, but i can't find it. Is it not available on the desire. If so, is there an app for that, or some other way to do it?
View 4 Replies View RelatedI have a sprint HTC hero. iv had it since like day one and i bought it off of a guy on the streets. so my 2 year plan was not extended or anything. in june my sprint contract ends and im able to leave or upgrade. should i..
A. stick with sprint and keep my hero
b. stick with sprint and use my upgrade and get a new sprint phone.
c. get rid of sprint, go to AT&T and get an iphone.
The Droid X does NOT have the screen material known as "Gorilla Glass".
Gorilla Glass | Device List
Gorilla Glass debate.
Quote:
Minor inconvienance. However,it is annoying that when i end a call the phone does not go back to the home screen but stays in the phone/contacts menu.Anyway to default back to home screen when a call is ended?
View 3 Replies View RelatedI helped a buddy of mine install 2.1 on his Hero. He's got a few issues i was hoping you could help with.
1. Weather will not update AT ALL! anytime you press where the weather widget it, it automatically takes you to the clock settings.
2. End button only ends calls. It doesnt lock the phone. he has to wait for the screen to time out since it does nothing.