AssetPickerViewerBuilderDelegate<A, P> class abstract

Implementers

Constructors

AssetPickerViewerBuilderDelegate({required List<A> previewAssets, required ThemeData themeData, required int currentIndex, AssetPickerProvider<A, P>? selectorProvider, AssetPickerViewerProvider<A>? provider, List<A>? selectedAssets, int? maxAssets})

Properties

bottomBarHeight → double
Height for bottom bar widget. 底栏部件的高度
no setter
bottomDetailHeight → double
no setter
bottomPreviewHeight → double
Height for bottom preview widget. 底栏预览部件的高度
no setter
currentAsset → A
Getter for the current asset. 当前资源的Getter
no setter
currentIndex ↔ int
Current previewing index in assets. 当前查看的索引
getter/setter pair
hashCode → int
The hash code for this object.
no setterinherited
isAppleOS → bool
Whether the current platform is Apple OS. 当前平台是否为苹果系列系统
no setter
isSelectedPreviewing → bool
Whether the viewer is under preview mode for selected assets. 当前是否处于查看已选中资源的模式
latefinal
maxAssets → int?
Maximum count for asset selection. 资源选择的最大数量
final
pageStreamController → StreamController<int>
StreamController for viewing page index update. 用于更新当前正在浏览的资源页码的流控制器
final
previewAssets → List<A>
Assets provided to preview. 提供预览的资源
final
provider → AssetPickerViewerProvider<A>?
ChangeNotifier for photo selector viewer. 资源预览器的状态保持
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
selectedAssets → List<A>?
Selected assets. 已选的资源
final
selectedCount → int
The length getter for selected assets currently. 当前选中的资源的长度获取
no setter
selectedNotifier → ValueNotifier<int>
Construct a notifier to notify whether if a new asset is selected or unselected. 构造一个通知器，在新资源选中或取消选中时通知。
latefinal
selectorProvider → AssetPickerProvider<A, P>?
Provider for AssetPicker. 资源选择器的状态保持
final
themeData → ThemeData
Theme for the viewer. 主题
final
viewerState ↔ AssetPickerViewerState<A, P>
The State for a viewer. 预览器的状态实例
latefinal
vsync ↔ TickerProvider
The TickerProvider for animations. 用于动画的 TickerProvider
latefinal

Methods

assetPageBuilder(BuildContext context, int index) → Widget
Split page builder according to type of asset. 根据资源类型使用不同的构建页
bottomDetailBuilder(BuildContext context) → Widget
Detail widget aligned to bottom. 底部信息部件
bottomDetailItemBuilder(BuildContext context, int index) → Widget
Thumb item widgets in bottom detail. 底部信息栏单个资源缩略部件
build(BuildContext context) → Widget
Yes, the build method. 没错，是它是它就是它，我们亲爱的 build 方法~
confirmButton(BuildContext context) → Widget
Confirm button. 确认按钮
dispose() → void
Keep a dispose method to sync with State. 保留一个 dispose 方法与 State 同步。
failedItemBuilder(BuildContext context) → Widget
The item widget when AssetEntity.thumbData load failed. 资源缩略数据加载失败时使用的部件
initStateAndTicker(AssetPickerViewerState<A, P> s, TickerProvider v) → void
Call when viewer is calling initState. 当预览器调用 initState 时注册 State 和 TickerProvider。
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
previewWidgetLoadStateChanged(BuildContext context, ExtendedImageState state, {bool hasLoaded = false}) → Widget
Common image load state changed callback with Widget. 图片加载状态的部件回调
selectAsset(A entity) → void
selectButton(BuildContext context) → Widget
Select button. 选择按钮
toString() → String
A string representation of this object.
inherited
unSelectAsset(A entity) → void

Operators

operator ==(Object other) → bool
The equality operator.
inherited