Android :: Android Grow Box Animation
Jul 2, 2010
Inside of a ListView row, I have a box (right now its an imageview, but i will probably be converting it to a linear or relative layout object at some point). when you click on the box, i have it start a scale animation that makes it appear to grow. however, once the animation is over, the box goes immediately back to its original state. I'd like to have the box stay at the transformed size (at least until they click it again).
Here's the xml:
CODE:.........................
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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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Nov 2, 2009
I am trying to make ListView which should display data from db. But the db is filled slowly so want the entries in the ListView to grow dynamically according to the elements in db. For example on a desktop music player when you import a folder to the music library the list with songs is filling in real time with the newly added songs. So how can i get this working on android.
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Apr 19, 2010
I want my view to grow or shrink in one direction like curtains. What animation i can use for this? is this scalling or wht is it ?
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Jul 7, 2009
Is there a way to grow the progress bar from the middle and in both directions? Something like below:
CODE:.............................
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Mar 15, 2010
I have a fairly complex activity the parent being a linearlayout with a table with some basic info and buttons. Then a couple listviews that the user can add items to. So these listviews grow more and more as the user uses the app. The problem I'm running into is the Linearlayout is bigger then the resolution of the screen and so it needs to scroll. So the scrolling doesn't work on the Listviews. I've tried playing with changing the layout_height of the listview and its child element with no success. Is there a way to make these couple listviews expand out to the amount of children? Or am I going about this all wrong? If so what other controls can I use?
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Dec 23, 2009
I've been doing a lot of searching and I know a lot of other people are experiencing the same OOM memory problems with BitmapFactory. My app only shows a total memory available of 4MB using Runtime. getRuntime ().totalMemory(). If the limit is 16MB, then why doesn't the total memory grow to make room for the bitmap? Instead it throws an error.............
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Jul 6, 2010
I have a Service which uploads a big file to a webserver. This works fine on the emulator (android 2.1). But if i run it on a Nexus One Froyo phone it starts out fine. But after a while it is in an infinite GC loop. The whole phone becomes unusable:.........................
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Nov 2, 2009
I have a rather complex ListView, with variable list item heights. Under certain conditions, I need to display an additional view in a list item, which is hidden by default (View.GONE). By enabling it (View.VISIBLE), the list item grows in height (or at least it's supposed to).
The problem:
Even though I declare the item's root layout to wrap_content, and each component in the item to fill_parent, the view I hide/show which is supposed to change the item's height is simply cut off at the bottom instead of its parent (the item layout) growing in height to fully display it.
Are there any gotchas related to ListViews and item layouts and item height which I may have missed?
Some more observations:
For testing purposes I have now reduced the list item layout to just contain the root LinearLayout and an ImageView. When I set the LinearLayout height to e.g. 200dip and the ImageView to fill_parent, I would have expected the ImageView to grow until it hits the 200dip limit set by its parent.
However, the image will instead be only ever as tall as its bitmap resource (as if I had set it to wrap_content) and the whole list item will be of the same height (i.e. as if I had set it to wrap_content, too).
If however I set the image height to e.g. 200dip, then the list item will grow in height, and so will the item layout.
In other words, the layout_height of the list item layout is completely ignored, and so is any height value on ImageView other than a hard-coded pixel value.
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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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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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Jan 5, 2010
Just gotta say that they are in for a hell of a ride. The N1 looks to be an awesome device and they are going to get to have the kind of fun we've all been having with a spanking fast shiny new Android phone.More than that I'm really excited to see this tsunami of sweet Android devices to hit the market.It doesn't take much imagination to realize how much the Market is going to grow with quality apps.
That said, I'm still very happy with my Droid AND a little bit jealous of the N1 already, all at the same time. I may even buy it at some point in the coming months, but most of all, this is exciting news for the platform we all know rocks
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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
CODE:......................
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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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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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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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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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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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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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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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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 start.so how I do for that requestion? I almost use the thread&handler to do, but it wasn't work.
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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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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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Feb 24, 2010
Doesn't seem to be covered in the books Ive looked at.
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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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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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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..so 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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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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Jun 17, 2009
can someone tell me if I can change the activity animation by applying a theme?I know the change will not be global, but is it even possible to make the change to be applied within my own app? For example, if i have an app that does not want to standard slide in/out animation on start/ exit, is it possible to change them?
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Aug 3, 2010
I want dont want the activity animation that comes by default when we start a new activity (i.e. the right to left scrolling effect to new activity view) so i googled a bit and found a flag FLAG_ACTIVITY_NO_ANIMATION in the Intent class also i applied that flag to my intent via the setflags() method but somehow i still see the activity animation when a new actvity is launced ( i am developing in android 2.1 update).
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