Tweened Animation

Android can perform simple animation on a graphic, or a series of graphics. These include rotations, fading, moving, and stretching.

Source file format: XML file, one resource per file, one root tag with no <?xml> declaration

Resource file location: res/anim/some_file.xml

Compiled resource datatype: Resource pointer to an Animation.

Resource reference name:


The file must have a single root element: this will be either a single <alpha>, <scale>, <translate>, <rotate>, interpolator element, or <set> element that holds groups of these elements (which may include another <set>). By default, all elements are applied simultaneously. To have them occur sequentially, you must specify the startOffset attribute.

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