scrollview_observer 1.7.0

A widget for observing data related to the child widgets being displayed in a scrollview.

1.7.0

• Chat Observer
  • Add the property [fixedPositionOffset].
  • Deprecated [ChatObserverClampinScrollPhysics], please use [ChatObserverClampingScrollPhysics] instead.

1.6.2

• Fix lib not working when itemExtent is set in ListView.

1.6.1

• Fix lib not working when shrinkWrap is true in scrollView.

1.6.0

• Chat Observer
  • Add onHandlePositionCallback.

1.5.1

• Fix scrollView being stuck when child widget get [size].

1.5.0

• Chat Observer
  • Quickly implement the chat session page effect.
• Scrolling to the specified index location
  • Add the property [cacheJumpIndexOffset].

1.4.0

• Scrolling to the specified index location
  • New alignment paramter in the jumpTo and animateTo methods.
  • Fixed a bug that caused scrolling to the first child to jitter when using offset paramter.

1.3.0

• Scrolling to the specified index location supports the SliverPersistentHeader.
• Add ObserverUtils
  • Method calcPersistentHeaderExtent: Calculate current extent of RenderSliverPersistentHeader.
  • Method calcAnchorTabIndex: Calculate the anchor tab index.

1.2.0

• The jumpTo and animateTo methods add an isFixedHeight parameter to optimize performance when the child widget is of fixed height
• Add the properties [leadingMarginToViewport] and [trailingMarginToViewport]
• Support mixing usage of SliverList and SliverGrid

1.1.0

• Supports scrolling to the specified index location

1.0.1

• Delete useless code

1.0.0

• Implements a way to use without sliver [BuildContext]
• Change [onObserve] to [onObserveAll], and add a new [onObserve] callback to listen for changes in the child widget display of the first sliver
• Add [ObserverController]

0.1.0

• Support GridView
• Support the horizontal

0.0.1

• Initial release