I have developed a simple application before testing it i want to check whether any memory leaks are there in the application. I don't know how to identify the leaks in Android. I am using Eclipse IDE for development. Is there a good introduction into finding memory leaks in Android apps somewhere?
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Will the code cause a memory leak? Essentially I switch between various layouts in my application using setContentView(), and I have member variables of my activity that maintain references to various views (buttons/text views) on the layouts. Am I correct in thinking that if the activity class has a reference to a button and then changes layouts the layout wont be garbage collected because it will still hold a button reference? If this is the case, can I just null the button variable before changing layouts?
View 3 Replies View RelatedWhen start Activity A, I found the memory usage of application is about 5MB. Then start Activity B from A via startActivity. In Activity B, I created a thread, and traverse file system in this thread, after traversing completed, call finish() and to return to Activity A. At this time, I found the memory usage of application is about 8MB (GC is forced before check memory usage). How to find Where memory leaks? By the way, I checked the memory usage with DDMS.
View 5 Replies View RelatedI have a very simple application which has a problem with getting ListViews to be freed by the GC. i have a ViewGroup which has a ListView. When the page with the ViewGroup no longer has any references to it, and I force a GC, the ListView is not freed. The project in question is quite small and can be found at http://gabysoft.com/download/MemoryLeak.zip. If you run it, the first page has a button and a ListView (which has no items so you cannot see it). When you press the button it switches to a second page which has just a button. When you press the button on the second page, it creates a new ViewGroup and ListView and sets that as the current view. Thus, every time you switch pages, a new ViewGroup/ListView is created, and all references to the old one go away. Hence the old one should be GC'd. However if you switch views 20 times and then force a GC you will see that the ListViews are never freed (i.e. their finalize method (which is logged) is not called). Now here is the really weird part. This happens ONLY if I build my project using Eclipse. If I use Ant to build and install the project, the ListViews are all freed when I do a GC as you would expect. Why would the Eclipse version exhibit this behavior?
View 7 Replies View RelatedI have a class 'GListView' which extends ListView and acts as it's own adapter. It is declared thus: public class GListView extends ListView implements List Adapter In it's constructor, I set it's adapter to itself
View 2 Replies View RelatedI was trying to find out were my apps memory was being leaked and was able to discover that when calling registerCallback(...) it would lead to a memory leak after a screen orientation change. What could be some possible things that are causing the leak? I've tried many things. And I do have a unregisterCallback(..) call.
View 20 Replies View RelatedI've read that it is a mistake and a source of memory leaks in Android application to keep a long-lived references to a Context.
But I don't understand if it is ok to create an class that looks like this one:
CODE:..........
And call it from an Activity:
CODE:.................
I just read the article 'Avoiding memory leaks' in android blog written by Romain Guy. http://android-developers.blogspot.com/2009/01/avoiding-memory-leaks.
View 4 Replies View RelatedHow to trace the Memory Leaks in Android Development? I am working on eclipse IDE to develop the application. i cant find out how to rectify the memory or window Leaks Exceptions? Any Idea.
Mainly the Window Leaked error raises the Illegal Argument Exception? how to rectify both og this.
I'm writing a widget. Currently, I'm have a simple ImageView, and calling RemoteViews.setImageViewBitmap(). I'm using a service to do the updates.
I thought it might be a good idea to reuse an existing RemoteViews instance, so I'm only querying it the first time around, and subsequently simply call setImageViewBitmap() with the new image.
This works well initially, but after some time I first start getting "!!! FAILED BINDER TRANSACTION !!!" errors, and later, an OutOfMemory exception.
Simply creating a new RemoveViews instance every time works flawlessy on the other hand. I'm just curios why that would be, any ideas?
I've got an Android app developed, and I'm at the point of a phone app development where everything seems to be working well and you want to declare victory and ship, but you know there just have to be some memory and resource leaks in there; and there's only 16mb of heap on the Android and its apparently surprisingly easy to leak in an Android app.
I've been looking around and so far have only been able to dig up info on 'hprof' and 'traceview' and neither gets a lot of favorable reviews.
What tools or methods have you come across or developed and care to share maybe in an OS project?
Any user friendly android app which can effectively show which apps cause memory leaks on a phone?
I can only find developer tools to detect memory leaks within apps like Eclipse MAT. Sadly I'm not a developer so I would rather prefer just a list of apps to uninstall and not the exact cause of memory leak within a specific app.
I am using kind of results search engine, problem is to remember the searching criteria i made singleton static class which keeps only one instance.In my application there are lots of class level private variables, lots of public static variables, a big util class which contains only static final methods.problem is my application get crash any time any where any spot and interesting thing is crash code always surrounded by try{} catch(Throwable e){} block but never catch, i think it may be memory full issue. I want to discuss one sample case, on the result page i also display result related image, i download image from web and using drawable i place image in the imageview, i created static hashmap to reuse images, some time after downlaod 5 images application crash some times click on a result get user to new detail screen get crash and all code surrounded by try catch block, i am new to mobile program this thing has become night mare to me. Last thing, On emulator hardly application crash but when i try to test the application on device, i am using samsung glaxy android supported to test the application it goes smoth and suddenly it start getting crashed, and after crash android relaunch the activity that throws null pointer exception on every click and caught by try{}catch{} block i think after crashing android dealocate all objects only keep the UI objects thats why when after crash i auto launch the activity clicking causes null pointer exception.how can i stop relaunching crashed activity?
View 1 Replies View RelatedHow to detect Memory leaks in Android JNI code? I am using Froyo
View 1 Replies View RelatedMy Verizon Galaxy Nexus has been running very very slow lately. I'm running AOKP last stable JB build and the RAM bar at the 'recent apps' screen show "665MB used - 30MB Free" most of the times. Even if I 'Kill all apps" from that screen, Free memory doesn't go higher than 42MB ever. I did google search with different keywords but all of them are returning only 'task killer' apps, which I believe don't actually do much good. In theory, Android does memory management on its own and release required memory automatically when a new app needs it. But I'm guessing there's some rouge app in my device which is always reporting "hey, I'm using this memory" and not letting Android reclaim it.
So, I'm looking for an app that can identify which app is using how much of ram at any given time. And maybe how much of CPU time etc... so that I can identify which app is bringing my device to its knees.
Im creating a mail application, where i need to start a service instance for every account, which will check for the new mails for that account. Now my problem is that i want to identify how my service i have created so far (by calling startService()). And also i want to stop a specific instance of service. I know that calling stopService() will stop all the instances of that service. Is there any work around to it.
View 2 Replies View RelatedCan anyone tell me the Android app that can identify your location and tell you what is around?
As in gas stations, food places, movie theaters, etc (3D). It was displayed on a commercial for VZW not too long ago, and I cannot find it on the Android Market place. I got my Incredible yesterday, and I love it.
Is there a way for an InputMethod or InputMethodService to identify the application for which it is providing input?
View 3 Replies View RelatedI want to record incoming call,any body knows please give some idea about that,other wise give some idea about How to know about incoming call.
View 3 Replies View RelatedI have a ListView displays information about an object. When I click a ListView Item, I open an Activity that let's me manipulate parameters of the object held in the adapter. These parameters are updated and stored remotely.
When I return to the ListView (via the back button), I want to update the ListView Item that I clicked originally by requesting the parameter values from the remote server.
I am currently doing this up updating the entire ListView by clearing it and rebuilding it.
How do I reference the ListView Item so that I can update the data for that item only?
I have a activity in that there are more than 5 list are there. Now when I select an item from that list then onListItemClick(ListView l,View v,int position,long id) method gets called. Now I want to identify on which list I have clicked.(Because I want to do different operation for different list item selected). How to identify that on which list user clicked?
View 9 Replies View RelatedHow to identify the current InputMethod language?
View 2 Replies View Relatedwe already got a battery meter in android 4.2.2, and it can tell if something is keeping the phone awake.For example, it shows that the "Android OS" is keep the system awake for 10 hours, but it can not tell me which app is holding some wake locks or wakes the phone frequently.I also installed Better BatteryStats, under Kernel Wakelock, it shows that the gps_lock is holding for 10 hours, but also not related to any app.
View 9 Replies View RelatedI create an Intent in one class then it's returned to another class. I need to check the type of intent it is. I need to ensure it's not a specific class of intent.
View 1 Replies View RelatedHow should I go about identifying an android user to a server.
Should I get the IMSI number and some salting algorithm?
Considering androids space and performance limitations is there a library that isn't too heavy that I can use to do the calculation?
Can anyone give an idea how to identify the views part of the active screen[i.e current running activity on the phone].
E.g after launching uiEditContactActivity,how can I identify the views [ several fields, buttons etc] part of that screen.
I am trying to modify monkey, such that for creating a contact, it should launch Edit Contacts Activity and fill the respective views [name, number etc].
If I use the AlarmManager to schedule an alarm (a PendintIntent which should be send), how can I identify that alarm later to cancel it? Can I cancel all alarms scheduled by my app?
View 1 Replies View RelatedIs there a way I can identify a handset on the server side of an HTTP request? I realize many headers are included on the request, but I am uncertain as to how the handset might be uniquely identified? Perhaps the Sim signature or some such fingerprint?
View 3 Replies View RelatedIn the implementation of my remote service's published API, is there a way to identify which client called a given method? For example, is there a way to obtain a unique ID or address of the caller? I already cache an AIDL callback reference to the client, but not sure how I can use this for identification.
View 4 Replies View RelatedI have a native android library (.so) I am bundling with some application. In the native code I want to verify the signer/package name of the calling application.
The reason is, currently anyone can open up the .apk file take my .so file and use it to built their own applications.
Is there a way to securely identify the calling application from Java side? This could be package name, signature or anything else that can identify the Android application in a unique way.