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?

Android :: Frame Animation callback when animation is complete

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 :: 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:


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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:


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 :: 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 :: 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);
} }

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Android :: Not Getting Complete Text While Animation On Canvas

Nov 16, 2010

I want to get an animated text in Android where it should run from left to right on the screen.

Eg: I want to get this text. private static final String QUOTE = "Nobody uses Java anymore. It's this big heavyweight ball and chain.";

running from right to left using animation.

However, this text gets truncated to "Nobody uses Java anymore. It's" in Portrait mode and to "Nobody uses Java anymore. It's this big heavyweight" in landscape mode.

This is the code that I have used:


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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 : Get Location Of Object When Animation Is Complete In Droid?

Mar 2, 2010

Is there a way to find out the final location of my animated "object" after the animation? Let's say I am animating an ImageView with location in parent as (0,0 - 20,20) using TranslateAnimation and ScaleAnimation over 1 second with setFillAfter(true).

How to I find the final location of this "object" (since the View location itself does not move)? I need to continue the animation from this point based on an user input.

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Android :: Animation.start - Or Animation.startNow - Does Not Start The Animation Immediately

Aug 30, 2010

I have a strange issue - from time to time the animation that should fade out my control (ImageButton) does not kick in immediately. I am using the fadeout animation to hide it and then in myListener on its end (onAnimationEnd) I put new resource as the image on the button.

Somewhere in my app code:

Animation a = AnimationUtils.loadAnimation(this,R.anim.fadeout); a.setAnimationListener(new myListener(location)); buttons[location].setAnimation(a); a.startNow(); // regardless if its start() or startnNow() it will work in most of the cases but not 100% reliable I actually can see in debug Log when its late, happens after few more clicks

Then in myListener.onAnimationEnd(Animation a):buttons[location].setImageResource(R.drawable.standard_button);

Seems there is a rule that the every 4th or 5th animation does not start ...

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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 :: Animation One After Other?

Aug 19, 2010

I have two TranslateAnimation on a TextView and i want them to execute one after other.. but using the below code, only the second one executes.. how can i solve this


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Android :: How To Speed Up Animation?

Jul 21, 2009

I have a static background image, and a foreground that needs to be animated. I tried a couple different approaches but the animation seemed choppy. One thing I did was having 2 different views, constantly calling invalidate() on the foreground view. Another was to have only 1 surfaceview, redrawing the background image and the foreground on each step of the animation.

While a surfaceview offers an optimal way to do heavy-duty animation, having to redraw the background every time kills the performance. Neither produced a smooth animation. What is the best way to perform this kind of animation - static background and animated foreground?

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Android :: TextView Animation

Feb 8, 2010

I am working on some animation application where i am trying to apply 2 kind of animation on the TextView.

During onCreate() of the activity I am rotating it by 45 degrees & on onTouch() event i want it to translate & then rotate it to proper shape.

But on onTouch it comes to normal shape & then translate & then again rotate.

How to keep old state of the TextView?

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Android :: Animation Is Slow

Oct 22, 2009

I'm trying to perform a simple animation, but it seems quite choppy. This is it: Animation anim = new Translate Animation(0,0,-50,0); anim.set Duration(500); anim.setInterpolator(new LinearInterpolator()); myLinearLayout.set Animation(anim);the animation does what it's supposed to do, just very choppy - is there any reason why it's so slow? The linear layout I'm applying it to is pretty simple, just has a few children.

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Android :: App's With 2D Graphics And Animation

Feb 2, 2010

I have doubts while doing some 2D Graphics and animation. Here is what i have done and what i want to do further: An application starts with a 2D object [ball] rotating and execising in a particular fashion, and after a particular point in time the object [ball] scrolls out of vision. After this point i want to invoke a new activity with a different UI. I m stuck up while trying to transit from this View to a new activity.

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Android :: Animation Slows Down

Jun 29, 2010

I have a continuous frame animation which runs 24 frames per X seconds, which is working fine, Now when i run another two animations ( Alpha animation ) at the same time , i notice performance drop , that is frame animation slows down.

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Android :: Add Some Animation On App Widget

May 31, 2009

When writing an App Widget based on Cupcake, I create a remote view like this:

views = new RemoteViews(context.getPackageName(), R.layout.widget_loading);

However, the widget_loading.xml contains <ViewAnimator>. The ViewAnimator don't have @RemoteView tag, so it's can not be inflated in remote view.

To fix this, I define a MyViewAnimator (which most likely the ViewAnimator in android) with @RemoteView tag in my project. Then use MyViewAnimator class in the layout xml file. But it failed, there was a exception that class loader cann't find MyViewAnimator class.

So the problem is: how to use any animation in the remote view? Is it possible adding some visual effects on app widget?

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Android :: Way To Implement Animation?

May 30, 2010

I have a widget that periodically updates itself (hourly) to display top result of search query. I would like to extend it so it captures several top results and then loops through these. The best example would be Genie News and Weather widget for which I was unable to find a source code. What would be a good way to implement the animation? I'm thinking ViewAnimator + timer, but is there maybe a better way, say FrameLayout + alerts? I'm already using AlertManager to periodically pull search results for the widget How bad such arraignment would affect phone's battery life?

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Android :: Animation Between Two Activities

Dec 2, 2009

I design a rotate animation when activity 1 ends, and then start activity 2.but this code will not saw the animation totally, that's means, the animation will pop up a second then soon activity2 start! but I need the animation play over, then the activity 2 how I do for that requestion? I almost use the thread&handler to do, but it wasn't work.

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Android :: How To Use Animation Translate?

Aug 21, 2010

I use translate move image from top to bottom,but translate finish image jump to image initial position.I don't know why,I want move image from A to B,finsih this image stay B.

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Android :: How To Put In Animation Set - More Than Two Or Three Animations

Jul 20, 2010

Actually i m little bit confused in animation set? i have more than two or three animations how can i put them in animation set? and one more thing this is very important..that my image is moving from one place to another through translate animation. but it is not showing the motion and looking like that the image was invisible there and after clicking its visible.. how can i show motion that image is moving from one place to another in translate animation.

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Android :: How To Do Busy Animation

Feb 24, 2010

Doesn't seem to be covered in the books Ive looked at.

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Android : Way To Create An Animation?

Jul 29, 2010

I need to create an animation - Flip a view and show another one. The width of currently shown view is decreased slowly to zero and after that the width of the view-to-be-shown must be increased from zero. During this time, the height goes from the currently-shown-height to slightly-decreased-height and back again.

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Android : Animation Across Two Layouts?

Aug 10, 2009

I've met a problem with animation when tried to make a View to perform the animation which should cross 2 layouts, e.g. make a translate animation so a view could move down to the TableRow below. This trick works fine when i try to move a view within a single TableRow but not when i try to move it up or down. I've also discovered that if i create a single RelativeLayout and apply the same animation there, it works fine, but i can't arrange all the components i need on the screen. Could anybody please provide me any hints about it?

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Android :: Dialog Callback From Withing Callback?

Aug 28, 2009

I'm trying to pop up an AlertDialog when someone long presses a list item.What I end up with is nested callback objects.I'm not sure if that is the problem but simple Alert dialog examples are not working for me.

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Android :: Flickering - Animation Towards Right And Left

Aug 26, 2010

I am doing an application-infinitely rotating 3D cylinder in openGl.The speed varies with finger touch but wen i reduce the speed,i can see flickering happening in animation towards right and left.Initialy I thought it is because of the linked list im updating but found out there is no such problem with my linked list .I'm using a thread here for a small delay after each 30 degree rotation drawing.I cant do it widout the thread coz i need a sleep or a delay after each 30 degree drawing,if i remove the thread and implement the code in thread inside my onDraw frame, the curvature rotation itself goes and it appears that images are just left shifting n right shifting coz the sleep is not getting identified in onDraw frame.So i cant implement my logic here widout using thread is a must in my logic but i guess the flickering is due to my thread...Is the flickering issue during animation because of the thread?please do help me with this flickering issue......

This is d thread part im using in my code.........

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Android :: Getting Transformation Matrix Of An Animation

Apr 1, 2010

I would like to obtain the transformation matrix of an animation to calculate the position of the view that was animated.It seems the Animation class has a method called getTransformation that can be used to obtain the transformation applied to the view.However, if I use getTransformation before starting the animation I obtain the identity matrix.The program enters an infite loop because getTransformation seems to trigger onAnimationEnd (why?).How should I use getTransformation to obtain the transformation matrix of an animation? Is there another way to do this?

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