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21-Feb-2017 |
Dake Gu <dake@google.com> |
Parallax: API factorying and add direct mapping
Remove six classes from api file: Parallax.IntParallax,
Parallax.FloatParallax Parallax.IntPropertyMarkerValue,
Parallax.FloatPropertyMarkerValue, ParallaxEffect.IntEffect
parallaxEffect.FloatEffect.
Remove methods Parallax.verifyProperties ParallaxTarget.getFraction
from API file
The standard parallax mapping converts value of source
into 0~1 fraction then convert it back to target value.
This is not only inefficient but also causing rounding errors.
Added a concept of ParallaxTarget.isDirectMapping(). When
true, ParallaxEffect bypass the fraction calcuation and directly
passes value from source Property to
ParallaxTarget.updateValue(Number).
Now DetailsFragment uses direct mapping for changing
child drawable's bound.
Fix the bug that ValuesRule's type is unmodifiable.
Bug: 35933446
Bug: 32022097
Bug: 35632609
Test: DetailsFragmentTest.parallaxTest
ParallaxIntEffectTest.testDirectMapping
CompositeDrawableTest
Change-Id: Ibd89ba6621fc0804ea24cba099b6d2e6bf3fccc9
/frameworks/support/v17/leanback/src/android/support/v17/leanback/widget/DetailsParallax.java
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| e1cde4d4ac42a6e9e16aad2b4df970c7c7d0771c |
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21-Dec-2016 |
Dake Gu <dake@google.com> |
Leanback: parallax and details video API refactoring
There are too many new concpets introduced when we create
multiple building blocks around parallax. This CL tries to
get rid of some classes.
1. Remove class ParallaxSource, integrated into Parallax.
So there is no more setSource()/getSource().
2. Replace DetailsParallaxManager with DetailsParallax. It is no
longer a manager pattern but DetailsParallax is a direct
subclass of Parallax.
3. Replace DetailsBackgroundParallaxHelper with
DetailsParallaxDrawable which is a direct subclass of
CompositeDrawble. No more helper concept.
4. remove the glue creation API from DetailsFragment, those
are not necessary and app can do it on the side.
The summary of new classes:
1. Parallax, tracks multiple UI events and perform multiple
ParallaxEffects on ParallaxTargets. RecyclerViewParallax is a
subclass of Parallax that monitors RecyclerView child positions.
2. DetailsParallax is a subclass of RecyclerViewParallax,
DetailsFragment holds the DetailsParallax object and is responsible
to attach it to VerticalGridView and sync with Transition animation.
DetailsParallax is shared by both background bitmap and video.
3. Created a DetailsFragmentBackgroundController class responsible
for parallax background and embedded video playing.
Bug: 33750080
Bug: 33751156
Test: all existing leanback tests
Change-Id: Iec81a444d5d4fbeb675f16222b09b407acf007a2
/frameworks/support/v17/leanback/src/android/support/v17/leanback/widget/DetailsParallax.java
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