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I'm pretty new to Android programming, and I've looked around but haven't been able to find a clear-cut answer. I need to slowly animate an image by switching it with anothe, like a sprite. If anyone can help, it seems like it should be really simple. Thanks!
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Once you have your folder with all your images, go to Xcode, select your project assets catalog, and drag-and-drop the animation folder. To make sure everything stay organized, enable the "Provide Namespace" option. It will make assets accessible from "FolderName/ImageName" instead of "ImageName" in your swift files.
Animating an image change with Swift is quite simple, all we need to do is use UIView. transition . To do this I have created a new project and added a UIImageView to my Main.
One way to animate Drawables is to load a series of Drawable resources one after another to create an animation. This is a traditional animation in the sense that it is created with a sequence of different images, played in order, like a roll of film. The AnimationDrawable class is the basis for Drawable animations.
You'll probably want to use a TransitionDrawable http://developer.android.com/reference/android/graphics/drawable/TransitionDrawable.html
Drawable[] layers = new Drawable[2];
layers[0] = //your first drawable
layers[1] = //your second drawable
TransitionDrawable transition = new TransitionDrawable(layers);
myImageView.setImageDrawable(transition);
transition.startTransition(1500);
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