Android :: Binder Is Leaked By Binding To A Service
Jul 30, 2010
I made a code for my understanding of Android Service class.
It has just a single Activity and Service in apk. Service is the same as the sample code of API reference as below: http://developer.android.com/intl/ja/reference/android/app/Service.ht...
A client side is an Activity based on the above sample, and just added the following code:
CODE:.......
My sample application has a check box which starts(binds)/unbind to the local service on a single process. The local service instance is created by every bind request (and destroyed by every unbind).
If I press the button repeatedly, then LocalService$LocalBinder is leaked!
The problem is not resolved even If I set an obtained binder to null (like below).
CODE:...............
View 6 Replies
Sep 10, 2010
What is the best way to add a new native service that uses Binder and can get past the service_manager.cpp restrictions on what users can add services? I have created a new native service that is similar to the MediaPlayer. I make the addService() calls to add the Binder service to the system. This worked fine when the service was started as root. I moved the new service to be started as the "media" user. Then I receive permission errors because of the table in service_manager.cpp where there is a check for users and allowed Binder services. Do I have to add my service to the table or is there some other way?
View 2 Replies
View Related
Feb 17, 2010
The object passing between an Android service and the remote binder is happening through serialization of the object. If the service needs to return a very large collection, it seems very inefficient to use this. What is the recommended way to deal with this?
View 1 Replies
View Related
Oct 5, 2009
I am very new beginner, and I am designing a small application as below.
- After a user starts the application, he/she can click the start button to start a background task. (e.g. retrieving the news headlines periodically, then do something...)
- Even after the user quits the application, the background task still running.
- To stop the background task, the user needs to run the application again, and clicks the stop button to stop the background task.
In the above scenario, what API should I use ? (Local Service Binding ? Remote Service Binding ? Handler ?)
View 2 Replies
View Related
Dec 16, 2009
I am working on an android application, where the activity binds to a local service to perform certain tasks.Now I am binding the service in the OnCreate method of the Activity, after which the activity has to use the service object to invoke the functionality defined in the servicein the OnStart method. The problem here is that once a call "bindservice" has been made, we might not get the serviceobject immediately, so my service object would be null till that time. So i cannot invoke the service functions.So is there a way to determine in the activity that the service has been bound and the service object is valid and could be used now. For reference i'm attaching a code snippet for the same.
View 2 Replies
View Related
Mar 13, 2010
Can an Activity be bound to two different Services at the same time or do I have to unbind one Service before binding to the other one?
View 2 Replies
View Related
Apr 30, 2010
Can one service be bound to n activities?
View 1 Replies
View Related
Jun 24, 2010
After I Bind to a service inside the method I start a CountDownTimer. The problem is that the timer does not start counting down. I have gone through with the debugger and sure enough it is executing the method that starts the Timer.If I use a button to start the timer it works! What could I be doing wrong?
View 1 Replies
View Related
Aug 3, 2010
I have a service component (common task for all my apps), which can be invoked by any of the apps. I am trying to access the service object from the all activities, I noticed that the one which created the service [startService(intent)] has the right informaion. But rest does not get the informaion needed.
My Code is as below:
CODE:................
If I invoke startService(intent). it creates a new service and runs in parallel to the other service.
If I don't invoke startService(intent), serviceObj.getData() retuns null value.
View 1 Replies
View Related
Nov 13, 2010
I am writing application that has service that provides real time data to subscribers via remote callback mechanism. Now I wanted to add a widget that visualizes essential part of this data but got error: "IntentReceiver components are not allowed to bind to services". So what's the right way to get data from that service?
View 1 Replies
View Related
Jul 1, 2010
Is there any fundamental difference in binding a service to an android.app.Activity vs binding it to an android.app.Application. I want to bind the service to an Application because I want to keep some global state/data in the Application instead of duplicating it in all my activities.
View 1 Replies
View Related
Nov 23, 2009
I am binding a remote service from an activity and unbind the same on the onPause of the Activity,when the activity again restarts i bind the service .It does bind with the remote service and i am also successful in getting the remote-service method getting executed after the restart.But when returning a message from the callback-RemoteCallbackList.the mCallbacks.beginBroadcast returns me 0 clients.Am i missing some thing here ?why am i am getting zero clients when I call mCallbacks.beginBroadcast.?
CODE:....................
View 2 Replies
View Related
Feb 20, 2010
I want to know what es the best place in an Activity to bind to a service? I saw examples doing it in onResume() and also in onCreate(). I was asking myself if it is not a problem putting it into onCreate(), cause in onPause() i will do a unbind to the service, so i dont get a serviceConnectionLeak, if i leave the activity. Now if i press the Home-Button and then switching to the HomeScreen, the Activity will unbind from the service, when i go back to the Activity from the Taskmanager, then onCreate() will not be called and if the Code is trying to access a function from the service i will get a null-pointer exception. If i bind and unbind only in onResume() and onPause() i dont have this problem.
View 3 Replies
View Related
Sep 15, 2010
My application has the following components: 2 Activities A Service and a BroadcastReceiver
Whenever the user updates the system time, my broadcast receiver receives the Intent.ACTION_TIME_CHANGED. Now when this happens I want to reschedule a Handler in my Service. How do I bind to a Service within my BroadcastReceiver?
View 1 Replies
View Related
Nov 20, 2010
I have a local Service to which multiple activites needs to bind. In the first launched Activity, bindService returns true and onServiceConnected is called. But in any additionally launched activites bindService returns false, and I can't get a reference to my Service.
How can multiple activities simultaneously be connected to a local Service?
View 3 Replies
View Related
Sep 14, 2009
As a point of example for my problem, I wrote a single Activity which binds to a service and then accesses a property to display. The problem is that my TestServiceConnection.onServiceConnected method is never called, and I don't know why.
Here is the code:
CODE:......................
View 3 Replies
View Related
Feb 12, 2010
Is is possible to send an object to an Android Service through an Intent without actually binding to the service? Or maybe another way for the Service to access Objects...
View 2 Replies
View Related
Aug 31, 2010
I have been watching the Google I/O presentation by Virgil Dobjanschi on the correct way to implement REST on Android with services and content providers. http://code.google.com/events/io/2010/sessions/developing-RESTful-android-apps.html
Based on the video I'm doing things the wrong way, which is not surprising given how hard the right way is. Anyway, having been shown the promised land in the video I'm having a bit of a problem figuring out how to get there.
I have most of it nailed but the one thing that's defeating me is the Binder Callback that Virgil references in the slides (see link above), on page 43 it shows step 2 as starting the service with startService( intent ) and step 10 as returning status information using a Binder Callback. There is no example code anywhere in the presentation which is rather frustrating. There is talk of open sourcing the Twitter client which apparently uses this approach but nothing yet and the announcement was in April.
In the video he states: "What is a binder callback? A binder callback, think of it as an interface that was passed in the request intent."
I have searched all over the place but have not been able to find any doc or examples that show how to pass a callback as part of an intent. Nor can I figure out any other way of passing in a callback.
I thought he may be referring to binding to the service and implementing the callback that way. However, he is specifically referring to a local service and using strarSerice() and not bindService(). Also with bindService() the service will be destroyed if the activity is destroyed which defeats the idea. The workaround is to use startService() and then bindService() and leave the service running for the duration. The other problem with bindService() is that the callback can not be use until onServiceConnected() completes which complicates the code even further as the action instructions can not be passed in the intent because the return callback may not be in place in time to return the results.
View 1 Replies
View Related
Jan 4, 2010
I currently have a lot of problems with this error. I programmed a widget and a service that runs in the background. This service is updating the widget on different occasions (position changed, screen turned on, timer based...) with images and text it's loading from a server. After a couple of updates I always get an error from the JavaBinder, at least that's what DDMS says. Reproducing the problem with my app is quite easy but I just can't figure out what's going on there.
View 6 Replies
View Related
May 21, 2009
My application starts a remote service and binds to it. If I close the application with the "back" button there are still some threads running (listed in the Debug View of Eclipse) - main thread, and three Binder threads. In onDestroy() I call unbindService(service_connection) - is there something else to clean up?
View 4 Replies
View Related
Feb 15, 2010
I get the Failed binder transaction error in the logcat when returning the image taken with the camera from the camera intent back to the parent intent (as a byte[] using putExtra). I don't understand why, its not like its a big bitmap or anything. It only happens when i take pictures with lots of light, because then the byte[] is bigger. The error occurs when leaving the camera intent. Does anyone see a mistake in my code?
Here is the code of the camera intent:
CODE:.............
And here is the code that calls the camera intent:
CODE:..................
View 1 Replies
View Related
Feb 16, 2010
I have a problem with an app that lets the user take a picture. I've posted it on some forums already, but nobody seems to recognize the problem. Hopefully someone here knows a solution :)
I've put the code of taking a picture in a seperate activity. Then I call the camera intent from my main activity using activityForResult. In the camera intent, I use putExtra to return the camera image (as a byte[] without doing anything to it). But when the program transitions back from the camera intent to the parent intent that called it I get a Failed Binder Transaction error in the logcat because the byte[] is too big. But I don't understand this, because the image is not even taken using the maximum resolution :S
The code of my camera intent is:
CODE:......................
View 6 Replies
View Related
Apr 9, 2013
I have installed many applications on my Galaxy Grand duos, with binding the applications data to External SD card (32gb), what will be the best practice to backup all the application and the data before installing another firmware? I don't have enough space on internal sdcard to unbind the application data.
View 5 Replies
View Related
Jul 2, 2010
I'm a little confused on how binding to services works. I understand using Context.startService() starts the service and that bindService doesn't call onStartCommand. But my understanding is that if I use startService, I have to explicitly stop the service. But I want the service to die if there are no more activities bound to it.My problem is that calling bindService never calls onServiceConnected(), so my Service binder object is null. Does the service have to be explicitly started in order to bind to it? If so, how does it know to terminate when nothing is binding to it anymore, and how do I know if it's started so I can know to use the bound object?
View 3 Replies
View Related
Oct 19, 2010
I am just starting out with Android and I am attempting my first test app, but I am a bit stuck.
I have an SQLite database and a user is selecting a picture and a reference to this a long with a short description is getting stored in the database. This is all working fine, now I want to bind the images from to database to a gallery, but I am a bit confused how I do this.
My layout xml is as follows:
CODE:.................
I want the gallery with a button below
My on create function I have the following:
CODE:...........
I am using the notepad tutorial as an example and my class extends ListActivity.
When I run it I get the error
Your content must have a ListView whose id attribute is 'android.R.id.list'
I'm assuming I am using the wrong type of binding, but I can't seem to find anywhere that tells me how to bind from an sqlite DB to a gallery.
I also want to add a reference to the rowId in the gallery so when the image is clicked it will open the relevant page (so it can show the message)
View 1 Replies
View Related
Oct 19, 2009
Has anyone succeeded in running the Java bindings for dbus on Android? All indications point at dbus already running as a process within the Android OS, but there is no official access point for them through the Java interface.
View 1 Replies
View Related
Feb 12, 2010
I am new to both Android and Stack Overflow. I have started developing and Android App and I am wondering two things:1) Is it possible to parametrize a TextView? Lets say I want to render a text message which states something like: "The user age is 38". Lets suppose that the user age is the result of an algorithm. Using some typical i18n framework I would write in my i18n file something like "The user age is {0}". Then at run time I would populate parameters accordingly. I haven't been able to figure out how to do this or similar approach in Android. 2) Let's suppose I have a complex object with many fields. Eg: PersonModel which has id, name, age, country, favorite video game, whatever. If I want to render all this information into a single layout in one of my activities the only way I have found is getting all needed TextViews by id and then populate them one by one through code. I was wondering if there is some mapping / binding mechanism in which I can execute something like: render(myPerson, myView) and that automatically through reflection each of the model properties get mapped into each of the TextViews. If someone has ever worked with SpringMVC, Im looking for something similar to their mechanism to map domain objects / models to views (e.g. spring:forms)
View 1 Replies
View Related
Aug 17, 2009
I currently building an android apps that retrieve data from a distant Web service and I search an efficient way to bind data form XML to ListView. I already use CursorAdapter and i search on the web for an "XmlAdapter". I read on Google IO topic "Coding for Life - Battery Life, That Is" (http://code.google.com/events/io/sessions/ CodingLifeBatteryLife.html) that is more efficient to use "stream parser" instead of "tree parser" but I don't find the way to build a class that implement ListAdapter because of stream parser can't navigate backward so I don't understand how implement method that use "position" parameter (How retrieve data before current XML Parser position?).
View 8 Replies
View Related
Sep 17, 2010
There is no solution for this?
View 4 Replies
View Related
Jun 18, 2009
Can anyone tell me if its possible to create some kind of custom adapater for XML data to a Spinner? I'm wanting to create a set of XML data that contains city names & latitude/longitude positions but only display the city name in the Spinner and access the lat/long when a new city is selected.
View 2 Replies
View Related
