Android :: Simple Frame Animation - Memory Leak Activity

Apr 14, 2010

I am using a simple frame animation and when I exit and reenter my activity the activity is still referenced in memory.

//This is a sample activity I created to simulate the problem public class MemoryLeakActivity extends Activity {
@Override public void onCreate(final Bundle savedInstanceState) super.onCreate(savedInstanceState);
} @Override public boolean onKeyDown(final int keyCode, final KeyEvent event) {
final Intent i = new Intent(MemoryLeakActivity.this, LeakyActivy.class);
startActivity(i); return super.onKeyDown(keyCode, event);
} }

Android :: Simple Frame Animation - Memory Leak Activity


Android :: Out Of Memory Error In Frame Animation / Solve This?

Mar 23, 2009

I am using frame animation in multiple page where in each page i am using set of png files. First animation is working fine but when i am trying to call second animation it showing

java.lang.OutOfMemoryError: bitmap size exceeds VM budget

Is there any way to solve this issue.

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Android :: Loading And Showing A Lot Of Images In ImageView - Frame By Frame Animation - Hangs In Certain Moments

Feb 18, 2010

I've created an application that show around 250 images in ImageView. Images are loaded one after another, 15-30 images per second. Basically the whole thing gives an illusion of a rotating 3D object, at least it should.

The problem is next, app hangs when loading certain images(i.e. I see a few seconds of fluid animation and then animation hangs, jump 10-15 frames(images) ahead and continues. It always happens at the same places in animation cycle.

I though that Android might not have enough resources to handle something like this, so I've resized images to half their size, but it did't help. I've tried buffering images but that did't help either(actually, maybe a little, I think that animation looks a little bit smoother).

And now the weirdest thing. I use the touch screen to allow users to "rotate" the 3D object on those images, and while rotating I again experience those hangs at exactly the same places as with the animation.

All images are in .png format and their size vary from 15kB to 40kB.

I use the following code for the animation:

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

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Android :: Alpha Animation - Staying In Last Animation Frame When Animation Is Completed

Nov 17, 2010

I'm fading out an imageview with alpha animation. I'd like the image to stay transparent after the animation. Tried with different combinations of fillAfter and fillEnabled, no luck. How can this be achieved?

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Android :: Memory Leak In Activity - Reclaiming

Sep 24, 2009

In my app activity A creates activity B, however when the back key is pressed it goes back to activity A. This is a simplified version of my application. I would expect memory to be reclaimed when going back to Activity A. Going to activity B allocates more memory. I am using dumpsys meminfo to get the allocated kbs. How can I easily tell what memory is creeping? I do not keep any references to activity B. I know about the ddms allocation tracker, but wondering if there is a more better tool to figure this out.

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Android :: Frame Animation Callback When Animation Is Complete

Jul 29, 2010

Is it possible in Android to get a callback when a Frame Animation (AnimationDrawable) has completed playing its frame sequence? I know when a Tween Animation has completed, it calls onAnimationEnd(), but is there something similar for frame by frame animations?

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Android :: How To Find Memory Leak Class / Activity In Android?

Sep 15, 2010

I am New to this Android platform. In one application, there is a memory leak. But I couldn't able to find in which activity or class the memory leak is happening. I am using MAT to get the information that the memory leak is there or not. But not able to find which activity is leaking. Please tell me how to find the which activity is leaking.

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Android :: Memory Leak / Android Cannot Reclaim Activity

Sep 1, 2010

I have a ListActivity containing an object I've defined called a MessageItem. I want to pass the data in this MessageItem off to a Service to do some stuff, but I don't want the Activity to be data bound to the Service such that Android can't reclaim the Activity if it needs to (ergo memory leak). What I'm doing is passing the MessageItem object to a method in a singleton class along with the application Context. The singleton method uses the application Context to start my Service. I pass to this Service an Intent. In this Intent, I put items from the MessageItem object like so:

intent.putExtra("subject", msg.getSubject());
intent.putExtra("summary", msg.getSummary());
intent.putExtra("created_on", msg.getCreatedDate());
intent.putExtra("read", msg.getIsRead());

Will this data bind my Activity to the Service the Intent gets passed into and cause a memory leak? Would this be a better implementation?:

intent.putExtra("subject", new String(msg.getSubject()));
intent.putExtra("summary", new String(msg.getSummary()));
intent.putExtra("created_on", new Integer(msg.getCreatedDate()));
intent.putExtra("read", new Boolean(msg.getIsRead()));

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Android :: OpenGL Key Frame Animation - The Best Approach

Dec 29, 2009

I'm trying to animate object. I use keyframe animation: I have two vertex buffers (two frames) with vertices of my object - first buffer is for object start state and second for end state. To transform the object I simply use linear interpolation. To make it more clear, please take a look at the code snippet:

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

As you can see I actually use one more buffer. vertexBuffer_motion is the one I use to draw my object in intermediate state.

Time for my question. What is the best approach for such keyframe animation on android? Can I somehow avoid (quite time consuming) operations of calculating and copying new state of all vertices to vertexBuffer_motion?

I know I could use VBO but still, I would have to prepare this vertexBuffer_motion and use glBufferData to set data to this VBO (or not?). provide me with some code example showing the best approach for keyframe animation on android?

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Android :: Pause Frame Animation Using AnimationDrawable?

May 19, 2010

How do i pause frame animation using AnimationDrawable?

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Android :: How To Apply Frame Animation To Custom Button?

Aug 6, 2010

Does anyone know if it is possible to apply a frame animation (using an AnimationDrawable) onto a custom button or a toast view? I have posted these questions on Stackoverflow but have received no responses and very few views so I thought perhaps posting to this forum would be a better route. Let me know if this "double posting" is bad form.

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Android :: Create A Custom Button In Droid That Animates With A Frame Animation?

Aug 6, 2010

Is it possible to create a custom button in Android, where the button is idly animating using a frame animation (AnimationDrawable)?

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Android :: Simple Animation With 2 Images

Dec 16, 2009

I try to write an simple animation by using a handler.However whatever I try it does not function asynch which causes only the last image in the sequence being displayed.

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

However it seems that all painting is done after the handler is completely done, meaning that the second image is shown and not the first.

I also tried the message handler implementation from the Snake sample but also here not with the expected result.

Can anyone give me an idea to show an image for a short definable period and switch back to the original image?

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Android :: Simple Navigation Animation With Droid To Display It Between Views?

Sep 7, 2010

I'm looking for a simple animation example using the android SDK for displaying a little animation between views.

Basically when we have a list view and a detail view - lets have a 'transition' animation between them.

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Android :: Frame Animation Or Movie File For Short Interactive Movie Application

Jul 22, 2010

In a nut shell, when the app is loaded, it will play a short movie (maybe a few seconds at most @ 12-24fps). I will then have 2 buttons displayed on the screen, and depending on what button is pressed, it I will play another short movie (5-10 seconds). While waiting for the user to make a decision, the movie will be looping.
The movie source is stop-motion photography so it's already chopped up into frames. My question here is if I should use a Frame Animation technique, or if I should use a Movie player for this. All in all perhaps there's less than 100 still frames that make up the stop-motion. I was going to go the Frame Animation route, but I wasn't sure if having so many individual frames would kill the app so I thought I'd post here to see if anyone had any insight.

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Android :: Memory Leak In AudioTrack?

Jun 27, 2009

If I create and release multiple AudioTrack objects, the GREF count continually increases which eventually causes an application crash. Even with a forced garbage collection, I end up with the same high GREF count at the end of the loop.In my application, I continuously create AudioTracks from variable lenght buffers.I guess I can try and use a fixed size pool of AudioTracks each with a buffer large enough to fit my longest sound, and try and reuse them.Is there a better/correct way to completely clear resources used by an AudioTrack?

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Android :: Memory Leak In Map Overlay

Jan 10, 2010

I have been banging away at this one for weeks and I feel like I have exhausted my research capabilities. I am hoping that someone will see my error in the code posted below. The code is completely functional doing everything I need, but there is a major memory leak. When I try to track memory in the DDMS, the VM Heap tells me that my object count is relatively stable and the used memory is also relatively stable (it comes back down to a similar value after each GC after panning).

When I look at the memory pie chart, the free memory loses over 1meg of capacity with each map pan (overlay reload) and the Unknown memory grows. I have not found anything with the allocation tracker. Functional Summary: I load overlays onto a map based on data I get from polling my server. When I pan the map far enough I clear the overlays and load new ones.
MapFrontEnd.java (snippets): //header info private List<Overlay> overlays;
//in onCreate overlays = mapView.getOverlays();
// here I attempt to fully clean up my old Overlays for (Overlay i : overlays) {
if (i instanceof ParcelOverlay) ((ParcelOverlay) i).cleanUp(); }

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Android :: Memory Usage - Leak?

Dec 4, 2009

In my app, I'm fetching data via HTTP and use the response string to create an ArrayList of objects. So what I'm doing once I get the response is:

String[] fields = response.split("<field>");
and use the field[] values like this:
ArrayList<Movie> movies = new ArrayList<Movie>(); for (int row = 1; row < fields.length; row += 9) { movies.add(new Movie(fields[row], fields[row + 1], ..., fields[row + 8]);
}

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Android :: Memory Leak Using ListActivity

Oct 14, 2010

I have an application that uses a Service and some list activities. When the activities are opened, I can see the heap usage increase in DDMS. When the activities are closed, the heap usage decreases slightly. The service is still running in the background at this point. If the activity is started again by re-running the application and then closed, the heap usage increases again then decreases, but never returns to the original level before the activity was first opened. If it repeatedly (10-15 times) open the activity then close the activity, the heap size (both MB and # Objects) balloons!

I'd expect ListActivity's onDestroy to take care of itself when it gets destroyed. What am I missing with this? Am I using ListActivity incorrectly?

If I examine the heap using MAT, I see 10-15 ListView objects. Unfortunately, I've not got much experience with MAT, but I think it means that the instances are still hanging around rather than being garbage collected. Can anyone explain what's going on?

A test app similar to my real code is below. Create a new android application, add this to the manifest:

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

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Android :: Memory / Resource Leak With Application

Nov 24, 2009

I am experiencing a memory / resource leak on a T-Mobile G1 device with my application. I installed the "Task Manager" application from Android market and my memory usage is not monotonically increasing. It stays relatively flat over time. Furthermore, none of the other processes are chewing up tons of memory either (really, I can get into this state with just my app running). I am not experiencing this problem on any of the other Android phones (including Eris, Hero, and Droid).

The interesting thing is that if I kill my application, the phone is *still* very slow and sluggish. The only thing that seems to be able to get me out of this situation is a battery pull. If I run my application for about 3 hours, the phone starts to become very sluggish. Even simple operations like hitting the "home" button take many seconds. I'm not sure what to do at this point and am wondering where I can go from here.

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Android :: String Builder And Memory Leak

Jan 6, 2010

I'm parsing a document with large text field. In my characters section I am using StringBuilder
currentStory.append(ch, start, length);
then in my endElement i'm assigning it to the appropriate field on my object.
if (name.equals(tagDesc)) { inDesc = false;
if (currentItem != null ) { currentItem.setSummaryText(currentStory.toString());
} currentStory.setLength(0);
} setSummary is public void setSummaryText(String text) { Story = text;
}

And I am running out of memory. If I change setSummaryText to something completely weird like this:
public void setSummaryText(String text) { char[] local = text.toString(
) Story = new String(local);
}

I am fine. I just cant figure out where I am holding that reference?
Story is a member var of this object initialized with "";
Note - assigning to local String variable instead of char[] - fails as well.

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Android :: Memory Leak - Heap Size

Aug 10, 2009

I know that's a subject which was discuss a lot of time and I try to find a solution since more than 6 day for the memory leak which appears in my application.

I've read this page: http://www.curious-creature.org/2008/12/18/avoid-memory-leaks-on-andr...

So, I don't use static member fields, I always use recycle() and I don't use inner class.

My application use a gallery and some bitmap. I use finalize to monitor garbage collection in each class of my application: protected void finalize() throws Throwable {try {Log.d("FINALIZE", this.toString());} finally {super.finalize();}

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Samsung EPIC 4G :: Droid 2 R2-D2 Boot Animation - Live Wallpapers Leak Out

Sep 10, 2010

Read this on egadget so I quickly copped em and installed em on my epic. The live wallpapers are pretty cool, especially the Jump To Light Speed.

Here is the original link from the engadget article:
Droid 2 R2-D2 boot animation, live wallpapers leak out at light speed -- Engadget

And here is where you can download the live wallpapers and see them in action:
Motorola Droid 2 R2-D2 Special Edition Live Wallpapers Leaked, Available For Download | Android News, Reviews, Applications, Games, Phones, Devices, Tips, Mods, Videos, Podcasts - Android Police

And here is where you can download hte boot animation, if you are so interested. I don't know if we can change it yet though.

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Android :: Memory Leak - New Array List String

Oct 6, 2010

After several hours of searching for the cause of a Out Of Memory Error, I found a wierd problem with Strings. To keep it simple, trimmed it down to something like this:

ArrayList<String> someStringList = new ArrayList<String>(1000);
for (int i=0; i<1000; i++) {
String someBigString = new String(new char[100000]);
String someSmallString = someBigString.substring(0,1);
someStringList.add(someSmallString);
}

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Android :: Phone State Listener Memory Leak

Sep 8, 2009

There appears to be a leak when using PhoneStateListeners. The following code simply reigsters in onResume and unregisters in onPause a PhoneStateListener. Repeatedly launch then press BACK (so the app is finished & onDestory is called before the next launch) and the number of activities reported by meminfo will equal the number of launches. For instance, here is the output I get after launching (and finishing) 11 times in sequence:

dumpsys meminfo com.example.leak Currently running services: meminfo
DUMP OF SERVICE meminfo: Applications Memory Usage (kB): Uptime: 12204322 Realtime: 12204322

** MEMINFO in pid 1358 [com.example.leak] ** native dalvik other total size:
2648 3079 N/A 5727
allocated: 2604 2254 N/A 4858
free: 43 825 N/A 868
(Pss): 913 1305 1475 3693
(shared dirty): 1080 3864 568 5512
(priv dirty): 808 936 1056 2800

Objects Views: 77
ViewRoots: AppContexts: 12
Activities: 11
Assets: 2
AssetManagers: 2
Local Binders: 36
Proxy Binders: 21
Death Recipients: 0
OpenSSL Sockets: 0
SQL heap: 0
dbFiles: 0
numPagers: 0
inactivePageKB: 0
activePageKB: 0 #

Without the PhoneStateListener, the number of activities is always 1 no matter how many times the app is launched & finished. So, am I doing anything wrong here? Or is this a bug in the TelephonyManager?

Here's the code package com.example.leak;

import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.telephony.PhoneStateListener; import android.telephony.TelephonyManager; import android.util.Log;
public class LeakExample extends Activity {
private class MyPhoneStateListener extends PhoneStateListener {
@Override public void onCallStateChanged(int state, String incomingNumber) {
if ((state == TelephonyManager.CALL_STATE_RINGING)
|| (state == TelephonyManager.CALL_STATE_OFFHOOK)) {
LeakExample.this.finish();
} } }
MyPhoneStateListener phone_listener = new MyPhoneStateListener();
TelephonyManager telMgr ;
@Override public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
telMgr = (TelephonyManager) getSystemService (Context.TELEPHONY_SERVICE);
} @Override protected void onPause() { super.onPause();
telMgr.listen(phone_listener, PhoneStateListener.LISTEN_NONE);
} @Override protected void onResume() { super.onResume();
telMgr.listen(phone_listener, PhoneStateListener.LISTEN_CALL_STATE);
} @Override protected void onDestroy() { super.onDestroy();
Log.v("LEAK EXAMPLE", "onDestory");
}

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HTC Droid Eris :: Simple .Bat To Quicken Boot Animation Adding

May 4, 2010

Enter the following code into notepad and save as BootAnimation.BAT(I would save this to the desktop.)CHANGE THE 3RD LINE AS NEEDED FOR WHERE YOUR ANDROID SDK IS LOCATED

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Android :: Memory Leak - Service Stays Running In Background

Oct 15, 2009

I start a Service from an Activity, the user presses back, the Activity goes away and the Service stays running in the background. However the activity (and it's views) still stay in memory. I tested this with cupcake and G1. To reproduce I've made a simple program.

The activity:
package com.android.service_test;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
public class StartService extends Activity {
/** Called when the activity is first created. */
@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);
setContentView(R.layout.main);
startService(new Intent(getApplication(), RunningService.class));
} }

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Android :: Disable Activity Slide-in Animation When Launching New Activity?

Feb 18, 2010

have an activity which launches another activity, via a button click. By default, on newer OS versions of android, the OS will animate the new activity sliding in from right to left.Is there a way to disable this animation? I just want the new activity to appear without any sort of animation.

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Android : Simple ListView App Is Leaking Memory

Nov 18, 2010

I created a simple app with a ListView following the ListActivity examples I found on the net.

The app has 2 activities with the first having a button to create the second. When i hit the close button on the second activity I would like it to release its memory (or at least allow it to be garbage collected).

Currently it will never release.

I must be doing something wrong here because the MyListActivity never gets released. Can anyone tell me if I am doing something wrong with the way my activities are created/destroyed? or if my usage of the ListView is wrong?

My App as a zip - http://www.mediafire.com/?l26o5hz2bmbwk6j

Screen Shot of Eclipse MAT showing the list activity never releasing memory - www.mediafire.com/?qr6ga0k

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Sprint HTC Hero :: How To Indicate Memory Leak?

Oct 20, 2009

I use advanced task killer to keep things under control, and handcent in favor of the stock msg app. I notice that I have upwards of 80mb free memory after killing tasks after a reboot. Over the course of the day, with only my ignored apps running, that number shrinks to 48-50mb. Does that indicate a leak somewhere?

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