LifecyclePageView class
替换PageView，添加生命周期
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- PageView
- LifecyclePageView
Constructors
-
LifecyclePageView({Key? key, Axis scrollDirection = Axis.horizontal, bool reverse = false, PageController? controller, ScrollPhysics? physics, bool pageSnapping = true, ValueChanged<
int> ? onPageChanged, List<Widget> children = const <Widget>[], DragStartBehavior dragStartBehavior = DragStartBehavior.start, bool allowImplicitScrolling = false, String? restorationId, Clip clipBehavior = Clip.hardEdge, ScrollBehavior? scrollBehavior, bool padEnds = true, bool itemKeepAlive = false, dynamic itemScopeBuilder(int index)?}) - 添加了生命周期，适配PageView 中item的生命周期Owner
-
LifecyclePageView.builder({Key? key, Axis scrollDirection = Axis.horizontal, bool reverse = false, PageController? controller, ScrollPhysics? physics, bool pageSnapping = true, ValueChanged<
int> ? onPageChanged, required NullableIndexedWidgetBuilder itemBuilder, ChildIndexGetter? findChildIndexCallback, required int itemCount, DragStartBehavior dragStartBehavior = DragStartBehavior.start, bool allowImplicitScrolling = false, String? restorationId, Clip clipBehavior = Clip.hardEdge, ScrollBehavior? scrollBehavior, bool padEnds = true, bool itemKeepAlive = false, dynamic itemScopeBuilder(int index)?}) - 添加了生命周期，适配PageView 中item的生命周期Owner
Properties
- allowImplicitScrolling → bool
-
If allowImplicitScrolling is true, the PageView will participate in
accessibility scrolling more like a ListView, where implicit scroll
actions will move to the next page rather than into the contents of the
PageView.
finalinherited
- childrenDelegate → SliverChildDelegate
-
A delegate that provides the children for the PageView.
finalinherited
- clipBehavior → Clip
-
The content will be clipped (or not) according to this option.
finalinherited
- controller → PageController?
-
An object that can be used to control the position to which this page
view is scrolled.
finalinherited
- dragStartBehavior → DragStartBehavior
-
Determines the way that drag start behavior is handled.
finalinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- hitTestBehavior → HitTestBehavior
-
Defines the behavior of gesture detector used in this Scrollable.
finalinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
-
onPageChanged
→ ValueChanged<
int> ? -
Called whenever the page in the center of the viewport changes.
finalinherited
- padEnds → bool
-
Whether to add padding to both ends of the list.
finalinherited
- pageSnapping → bool
-
Set to false to disable page snapping, useful for custom scroll behavior.
finalinherited
- physics → ScrollPhysics?
-
How the page view should respond to user input.
finalinherited
- restorationId → String?
-
Restoration ID to save and restore the scroll offset of the scrollable.
finalinherited
- reverse → bool
-
Whether the page view scrolls in the reading direction.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- scrollBehavior → ScrollBehavior?
-
A ScrollBehavior that will be applied to this widget individually.
finalinherited
- scrollCacheExtent → ScrollCacheExtent
-
The viewport has an area before and after the visible area to cache items
that are about to become visible when the user scrolls.
finalinherited
- scrollDirection → Axis
-
The Axis along which the scroll view's offset increases with each page.
finalinherited
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< PageView> -
Creates the mutable state for this widget at a given location in the tree.
inherited
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of DiagnosticsNode objects describing this node's
children.
inherited
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toDiagnosticsNode(
{String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode -
Returns a debug representation of the object that is used by debugging
tools and by DiagnosticsNode.toStringDeep.
inherited
-
toString(
{DiagnosticLevel minLevel = DiagnosticLevel.info}) → String -
A string representation of this object.
inherited
-
toStringDeep(
{String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String -
Returns a string representation of this node and its descendants.
inherited
-
toStringShallow(
{String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String -
Returns a one-line detailed description of the object.
inherited
-
toStringShort(
) → String -
A short, textual description of this widget.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited