1.20.0

What's Changed

• ObserverController
  • Add observeIntervalForScrolling to set the minimum amount of time to wait for firing observe callback during scrolling.
• ObserverUtils
  • Improve the logic of isDisplayingSliverInViewport method.
• ScrollViewOnceObserveNotificationResult
  • Add observeViewportResultModel.
• ChatScrollObserver
  • Add ChatScrollObserverRefIndexType.
  • Add refIndexType to specify the role of refItemIndex and refItemIndexAfterUpdate.
• Slivers
  • Add SliverObserveContext.
• ObserveDisplayingChildModelMixin
  • Add visibleFraction and visibleMainAxisSize.

Above features are implemented by @LinXunFeng.

Full Changelog: 1.19.1...1.20.0

1.19.1

What's Changed

• ListViewObserver
  • Support SliverVariedExtentList in 74.
• Chat Observer
  • Safely obtain the constraints of RenderSliver.
• ObserverController
  • Adapt to scenes where CustomScrollView specifies center.

Above features are implemented by @LinXunFeng.

Full Changelog: 1.19.0...1.19.1

1.19.0

What's Changed

• SliverViewObserver
  • Add customOverlap property.
• NestedScrollUtil
  • To better support NestedScrollView.
• ObserverCore
  • Improve the judgment logic of whether the sliver is visible.
• ObserverController
  • Adjust the controller to be modifiable.

Above features are implemented by @LinXunFeng.

Full Changelog: 1.18.2...1.19.0

1.18.2

What's Changed

• Chat Observer
  • Fix keeping position not working by @LinXunFeng in #64

Full Changelog: 1.18.1...1.18.2

1.18.1

What's Changed

Add a check to determine whether the BuildContext is mounted by @LinXunFeng in #62.

Full Changelog: 1.18.0...1.18.1

1.18.0

What's Changed

• ObserverController
  • Add some scrolling task notifications extending from ObserverScrollNotification.
  • The jumpTo method and animateTo method supports await.
  • Add isForbidObserveCallback property.
  • Add isForbidObserveViewportCallback property.

Above features are implemented by @LinXunFeng.

Full Changelog: 1.17.0...1.18.0

1.17.0

What's Changed

• ObserverController
  • The parameter isFixedHeight in the jumpTo method and animateTo method supports GridView and supports ScrollView built by third-party package by @percival888 in #52

Full Changelog: 1.16.5...1.17.0

1.16.5

What's Changed

• ObserverWidget
  • Improve the processing logic of scroll notification when scrolling with the mouse wheel is not smooth by @qiangjindong in #48.
• Chat Observer
  • Update isShrinkWrap once during initialization by @LinXunFeng. #47
• ObserverController
  • Fix unable to jump when sliver is too far away and has no any child by @LinXunFeng. #45
  • Fix continuous page turning due to incorrect index by @LinXunFeng.

New Contributors

• @qiangjindong made their first contribution in #48

Full Changelog: 1.16.4...1.16.5

1.16.4

What's Changed

• Supplement missing type conversion adjustments by @LinXunFeng .

Full Changelog: 1.16.3...1.16.4

1.16.3

What's Changed

• Observation Model
  • Add viewport property to observation model by @LinXunFeng.
  • Correct the calculation logic of some values to adapt to the scene of multiple slivers by @LinXunFeng.

Full Changelog: 1.16.2...1.16.3