I am trying to make a slideshow like animation to simulate the simple alpha masking in any video editing software, for example i want a chart to go from bottom to top. i tried property animation, animatorset and alphaanimation. searched the web nothing helped :( i was able to control translate / transparency but not both together. another way is to get image frames and swap between them (but i am running from this solution) another solution is to make chart bars on a progress bar and animate them but i had troble with png as prgressbar trims png(i really dont know if this a good solution) any idea?
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I would like my image to fade in so that different parts of the image would fade in at different speeds to make it appear that it is fading in from the bottom first.
All animations I've seen has the entire image fade in at the same time. Is there anyway of doing this?
You've to write your custom animation classes.
Checkout this animations-link for those who visit this question looking for solution.
From above link you'll get idea how to write and customise your animation.
Hope this helps
Basically, I have images that I'd like to to update them sequentially into the same view to create custom ProgressBar.
I found Tumblr to do just that with their ProgressBar(ImageView?).
Here I put the animation side-by-side to show how the image actually cross-fade from Aa into a camera.
Exactly what I wanted:
Cross-fading effect
Indeterminate
Use the same view (I dumped view hierarchy to check)
Animation during transition (The image actually pop a little when spinning and cross-fading into the next image)
So far I have tried:
1. Frame Animation,
this allows for unlimited item(s) with definable durtion. However, it
doesn't cross-fade the image and there's no way to listen to the
transition's event to apply other animation, etc.
2. Transition Drawable, this allows cross-fading between EXACTLY two drawables. So this doesn't allow for the number of items and interminate duration as well.
I also came across CrossFadeDrawable by Romain Guy just now but it looks like it's only coded to support only two Drawable.
Right now I am not very sure if I'm approaching in the right direction or is there something I need to learn in order to do this kid of effect?
I'm not sure if you are approaching this direction but isn't this what you are looking for:
http://www.youtube.com/watch?v=atH3o2uh_94
This is the effect on the ios
Like the effect of paper folded
PaperFold for iOS :https://github.com/honcheng/PaperFold-for-iOS
I suppose you can use scale animations on ImageViews that simulate the paper already folded. The scale effect would be used when you scroll through and expand the entire paper as you continue to scroll through the sets of images. Once you fully scroll through the paper ImageView and the animation is completed, you just kill the animation and have a normal view of a full page paper. Just make a separate folder for animation and inside that folder, create an XML file, select scale and play around with the attributes to test the best suitable effects for your animation.
Hope this helps!
There is a library that helps to implement not accordion-like but another quite interesting folding effect: http://www.youtube.com/watch?v=GzWGhp_NDTg
The explanation & code here http://cases.azoft.com/creating-paper-folding-animation-in-android/
You can use Foldable Layout Lib.
https://github.com/worldline/FoldableLayout
Is there a simple way to do the Curl page flipping animation? A Curl animation is animation of pages flipping, including the page above rolling and the shadows over the lower page.
What is the recommended way to do a "gallery" that displays two pages at a time (just like a book)?
Is it:
Letting the adapter display a linear layout of two images at a time? (it won't let me show a page flipping over the other like a book)
Using two pages, placing somehow one near the other, and then when it's time to animate -move the next two pages over?
What is the better way that would enable displaying the left page flipping over the right page?
I'm implementing a 2D page curl in the native canvas. Check my answer in: Implement page curl on android?
EDIT: The code project of my implementation: http://code.google.com/p/android-page-curl/
EDIT2: Links updated
I am using this code. Its really really perfect for any one to understand and use. Thanks a lot to Harism
GitHub Link for Page Curl Animation in android With OpenGL
I haven't worked on the android before, but it seems to me the best way to do a page flipping type of display would be to draw it in three layers. The first being the first page's text, the second being the "page" underneath, and the third being the next page. If you draw them from back to front, the only thing the user will see will be the text on the first page.
Now, Once you have that, you'll want to do some sort of curling/flipping animation based on whatever controls you are using. Simply choose whatever method works best for you for doing that animation, but while you are doing that, have the part of the page that isn't there anymore alpha'd out. This will allow you to see the text of the page underneath (Okay, I lied. You'll need a background behind that text too).
The problem at this point is you're still drawing the text twice over the same space, so you'll want to blend the first page's text with the animation under it. In this way, the text that is over the 0 alpha sections will be invisible. It won't bend with the animation, so that may still be an issue, but depending on the speed of the flip that might be fine still. When the animation is done, simply set the first page = the second, the animation reset to plain white, and the second page = the new second page.
The shadow effect can be done simply by partially alphaing out some black behind the page turn animation. Draw over second page (as the animation layer already is doing) and voila!
I believe your two page question could use a very similar method. Good luck
This is 3d animation project (based on OpenGL 2.0) - http://anettosoftware.co.uk/npc.php
Is there a simple way to do the Curl page flipping animation? A Curl animation is animation of pages flipping, including the page above rolling and the shadows over the lower page.
What is the recommended way to do a "gallery" that displays two pages at a time (just like a book)?
Is it:
Letting the adapter display a linear layout of two images at a time? (it won't let me show a page flipping over the other like a book)
Using two pages, placing somehow one near the other, and then when it's time to animate -move the next two pages over?
What is the better way that would enable displaying the left page flipping over the right page?
I'm implementing a 2D page curl in the native canvas. Check my answer in: Implement page curl on android?
EDIT: The code project of my implementation: http://code.google.com/p/android-page-curl/
EDIT2: Links updated
I am using this code. Its really really perfect for any one to understand and use. Thanks a lot to Harism
GitHub Link for Page Curl Animation in android With OpenGL
I haven't worked on the android before, but it seems to me the best way to do a page flipping type of display would be to draw it in three layers. The first being the first page's text, the second being the "page" underneath, and the third being the next page. If you draw them from back to front, the only thing the user will see will be the text on the first page.
Now, Once you have that, you'll want to do some sort of curling/flipping animation based on whatever controls you are using. Simply choose whatever method works best for you for doing that animation, but while you are doing that, have the part of the page that isn't there anymore alpha'd out. This will allow you to see the text of the page underneath (Okay, I lied. You'll need a background behind that text too).
The problem at this point is you're still drawing the text twice over the same space, so you'll want to blend the first page's text with the animation under it. In this way, the text that is over the 0 alpha sections will be invisible. It won't bend with the animation, so that may still be an issue, but depending on the speed of the flip that might be fine still. When the animation is done, simply set the first page = the second, the animation reset to plain white, and the second page = the new second page.
The shadow effect can be done simply by partially alphaing out some black behind the page turn animation. Draw over second page (as the animation layer already is doing) and voila!
I believe your two page question could use a very similar method. Good luck
This is 3d animation project (based on OpenGL 2.0) - http://anettosoftware.co.uk/npc.php