I was wondering if there is a way that I can animate my GridView's Children to their new positions. So, for example, slide in from the left and when at the end of a row, slide off to the right. This will give the effect of each child moving to its new position, rather than just appearing there.
I have looked around, and could not find any useful information. Ideally a small code sample will get me on my way.
Thanks
You should consider using GridLayoutAnimationController. GridLayoutAnimationController docs
You may try looking at this video:
http://www.youtube.com/watch?v=X984r7IOrgc
The developer somehow shares how he had implemented the animation in his reply on one of the comments. He could not show the source code yet though. Hope this helps.
i used android canvas and some code for positioning image tiles. it
uses and data adapter pattern (like for all AdapterViews). each tile
has it's position - page, row and column. draging changes tiles
positions. - karooolek
There are a few animations in the Android API Demo, including some animations for gridview.
You might want to check the examples in com.example.android.apis.view.
Related
I have a specific goal regarding animation using Recyclerview, but I cant find an exact title to convey my concern, so I'm open to any correction if necessary. So first , I have a recyclerview that acts as a ViewPager thanks to David Medenjak's Recyclerview ViewPager
Now I have a requirement to animate the background color for each swipe transition, thanks to different links and resources, I stumbled upon TransitionDrawables, putting an array of different drawables and invoking a necessary transition functions to animate,
recyclerView.setBackground(arrayOfDrawables)
transitionArrayOfDrawables.startTransition(...);
Now I want to take things deeper, I want to manually control the transition relative to the animation of the swipe of each item of the recyclerview, Im mentally blocked as I cant find the keyword to search for where should I start, "Interpolation", "Manually interpolating a views animation", things like that, but still no luck, the only thing that I have on my mind is "Get the recyclerview's visible item's interpolation/animation-value then supply it to the target view's animation manually", but I dont know where to start, I dont even know how to animate view's manually, I have experience with ObjectAnimators, simple translating, scaling, bouncing etc.. but controlling view's animation manually and relatively even by using knob/seek bar or such, its just out of my domain as of the moment.
Any help would be greatly appreciated.
[Edit] Apologies if my question's intent covers alot of demands :(
If I am understanding correctly, this link may be of some use. It provides instruction for how to gradually transition between viewpager background colors in relation to the user swipe.
The example uses the ArgbEvaluator class which -according to the doc: "...perform[s] type interpolation between integer values that represent ARGB colors."
I want to implement a graph as below for each item of a listview.
The cell will turn green or red based upon the input.
The number of coloured cells will increase based upon the input.
Could you please tell me what would be the best approach in attaining the same. Right now I have used table view to achieve this. But the list view is very slow. Tried searching for some third party graph libraries but had no luck.
Thank You.
If there's a fixed number of cells, you could define a custom view.
Inside the custom view, you can then define a canvas, where you can draw colored rectangles. Just provide some kind of update method for your custom view, to keep the canvas refreshing whenever there's a data change.
The advantage of this solution:
+ It's faster than hiding / showing and inflating views
+ You can custimze it much faster
+ You have all functions you need in one class
And it's relatively easy to accomplish, have a look at the android developer page for this topic: https://developer.android.com/training/custom-views/index.html
I have to create a screen in which multiple images will be scrolling (automatically) from right to left with following features:
I have to create a layout like this image:
Small circles will be scrolling automatically like marquee.
When Image would reach at center, image will be zoom by 20% than other image.
Images would be click able, so that an operation could be performed after click.
What I have done so far:
I have used ViewPager but neither images are not scrolling automatically nor center image is zooming.
Please suggest or give some example.
I've done some research on this, and found that basically Android ViewPager does not support such functionality. This requires you to create your own custom ViewPager.
For the scrolling, circular ViewPager, I suggest you to use InfiniteViewPager. For the adapter, you can try looking at here.
This is some alternative, but I prefer InfiniteViewPager.
You can achieve this using a CarouselView. There are several libraries available for it. You can try this one.
https://github.com/clkasd/CarouselViewProject.
To change the current item automatically, you can use setCurrentItem function with a timer.
I am searching for an easy way to implement a view flipping like used in several occasions by google apps.
Behaviour should be like this: OnScroll the view should move to the side and show the content of the next page. If scrolled far enough the view should move smoothly into position (after lifting your finger) and snap into place. If not scrolled far enough and the finger is lifted, the original view should smoothly move to the original view and snap into place.
I search around and didn't figure out a easy way.
So I though about something like this:
Hide the ScrollBars of the horizontal ScrollView.
Set the scrollView position manually according to the position I get from a GestureDetector.
I am pretty sure that this way works. But it seems to complicated to me, because there are to many things that have to be programmed. Like the animation (Smooth acceleration, deceleration, snap), Gesture, calculation of the actual position....
So my Question: Am I on the right way or is there an easier approach? Did I miss something during I searched for a solution? Is this function already implemented by android or does it really have to be done by myself?
Look for this tutorial. Also if you try to search here, on SO, you will find thousands of similar question with lots of different solutions. You can choose one, that will useful for you.
I want to implement view like this:
Inside of this view all children has to be animated while scrolling through them.
I am going to implement it for android 2.x
My first thought was to create custom view extending FrameLayout and manage children views inside programatically, detect gestures and move to next/prev child view animating them (probably scale and transition animation)
What can you advice me, how to achive that, maybe there is an open source project that can help me?
Finally I got what I wan't, there is no simple answer on this question, but simply saying you have to all the work that android UI framework usually does: calculate position of items, add them in proper order, apply different effects (translate, scale, fade out) and draw it on canvas.
To achiev this I follod this extremely useful tutorial (thanks to author)
http://blogs.sonyericsson.com/wp/2010/05/20/android-tutorial-making-your-own-3d-list-part-1/
I am thinking to add my solution somewhere on github once I fix all bugs and make it completelly reusable.