commit | 0196ee13efae19dd0f5d1df973d327b750ef3eb2 | [log] [tgz] |
---|---|---|
author | Oscar Adame Vázquez <oscarad@google.com> | Mon Aug 14 11:42:25 2023 -0700 |
committer | Oscar Adame Vázquez <oscarad@google.com> | Wed Jan 10 13:17:11 2024 -0800 |
tree | f308fecb862fa2441107e18bff0900935f2131d8 | |
parent | 717389f5c8c5166f100f29fde3cfdce577cf62bc [diff] |
Add Arc based AnimationSpec Introduces animation using arcs of a quarter of an Ellipse. - ArcAnimationSpec for single shot animations - `using(ArcMode)` in `keyframes` for key-frame based animations These interpolators are designed to be used with 2-dimensional values. Particularly, for positional values such as Offset. The interpolator supports multiple modes: - ArcAbove: The arc corresponds to the curve of a quarter of an Ellipse where the curve is above the center of the Ellipse. - ArcBelow: The arc corresponds to the curve of a quarter of an Ellipse where the curve is below the center of the Ellipse. - ArcLinear: At typical linear interpolation. This is only expected to be used in keyframes, where the user might want to avoid arcs in a segment of the animation. While it may be used with other N-dimensional values, its use is discouraged since it may lead to unpredictable animation curves. The lint check `ArcAnimationSpecTypeDetector` addresses that. It's an Informational Lint check that verifies that the calling type of `ArcAnimationSpec` is one of: Offset, IntOffset or DpOffset. See ArcOffsetDemo.kt for a simplified use-case using keyframes using ArcMode. Relnote: "You may now use `ArcAnimationSpec` and `using(arcMode: ArcMode)` (in keyframes) to interpolate positional values such as Offset using arcs of quarter of an Ellipse." Bug: 299477780 Test: ArcAnimationTest, ArcKeyframeAnimationTest Change-Id: I154c403a5685f1146c5157738b4331967a7d77f7
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