DefaultAssetPickerViewerBuilderDelegate class

Inheritance

Constructors

DefaultAssetPickerViewerBuilderDelegate({required int currentIndex, required List<AssetEntity> previewAssets, AssetPickerProvider<AssetEntity, AssetPathEntity>? selectorProvider, required ThemeData themeData, AssetPickerViewerProvider<AssetEntity>? provider, List<AssetEntity>? selectedAssets, List<int>? previewThumbSize, SpecialPickerType? specialPickerType, int? maxAssets, bool shouldReversePreview = false, AssetSelectPredicate<AssetEntity>? selectPredicate})

Properties

bottomBarHeight → double
Height for bottom bar widget. 底栏部件的高度
no setterinherited
bottomDetailHeight → double
no setterinherited
bottomPreviewHeight → double
Height for bottom preview widget. 底栏预览部件的高度
no setterinherited
currentAsset → AssetEntity
Getter for the current asset. 当前资源的Getter
no setterinherited
currentIndex ↔ int
Current previewing index in assets. 当前查看的索引
getter/setter pairinherited
doubleTapAnimation ↔ Animation<double>?
Animation for double tap. 双击缩放的动画
getter/setter pairinherited
doubleTapAnimationController ↔ AnimationController
AnimationController for double tap animation. 双击缩放的动画控制器
latefinalinherited
doubleTapCurveAnimation ↔ Animation<double>
CurvedAnimation for double tap. 双击缩放的动画曲线
latefinalinherited
doubleTapListener ↔ VoidCallback
Callback for double tap. 双击缩放的回调
getter/setter pairinherited
hashCode → int
The hash code for this object.
no setterinherited
hasVideo → bool
Whether there are videos in preview/selected assets. 当前正在预览或已选的资源是否有视频
no setter
isAppleOS → bool
Whether the current platform is Apple OS. 当前平台是否为苹果系列系统
no setterinherited
isDisplayingDetail → ValueNotifier<bool>
Whether detail widgets displayed. 详情部件是否显示
finalinherited
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
latefinalinherited
isWeChatMoment → bool
Whether the SpecialPickerType.wechatMoment is enabled. 当前是否为微信朋友圈选择模式
no setter
maxAssets → int?
Maximum count for asset selection. 资源选择的最大数量
finalinherited
pageController → ExtendedPageController
PageController for assets preview PageView. 查看图片资源的页面控制器
no setterinherited
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
finalinherited
previewAssets → List<AssetEntity>
Assets provided to preview. 提供预览的资源
finalinherited
previewingListController → ScrollController
The ScrollController for the previewing assets list. 正在预览的资源的 ScrollController
finalinherited
previewThumbSize → List<int>?
Thumb size for the preview of images in the viewer. 预览时图片的缩略图大小
final
provider → AssetPickerViewerProvider<AssetEntity>?
ChangeNotifier for photo selector viewer. 资源预览器的状态保持
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
selectedAssets → List<AssetEntity>?
Selected assets. 已选的资源
finalinherited
selectedCount → int
The length getter for selected assets currently. 当前选中的资源的长度获取
no setterinherited
selectedMaximumAssets → bool
是否已经选择了最大数量的资源
no setterinherited
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。
latefinalinherited
selectorProvider → AssetPickerProvider<AssetEntity, AssetPathEntity>?
Provider for AssetPicker. 资源选择器的状态保持
finalinherited
selectPredicate → AssetSelectPredicate<AssetEntity>?
Predicate whether an asset can be selected or unselected. 判断资源可否被选择
finalinherited
shouldReversePreview → bool
Whether the preview sequence is reversed. 预览时顺序是否为反向
finalinherited
specialPickerType → SpecialPickerType?
The current special picker type for the viewer. 当前特殊选择类型
final
themeData → ThemeData
Theme for the viewer. 主题
finalinherited
viewerState ↔ AssetPickerViewerState<AssetEntity, AssetPathEntity>
The State for a viewer. 预览器的状态实例
latefinalinherited
vsync ↔ TickerProvider
The TickerProvider for animations. 用于动画的 TickerProvider
latefinalinherited

Methods

appBar(BuildContext context) → Widget
AppBar widget. 顶栏部件
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
override
bottomDetailBuilder(BuildContext context) → Widget
Detail widget aligned to bottom. 底部信息部件
override
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
override
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~
override
confirmButton(BuildContext context) → Widget
It'll pop with AssetPickerProvider.selectedAssets when there are any assets were chosen. Then, the assets picker will pop too. 当有资源已选时，点击按钮将把已选资源通过路由返回。 资源选择器将识别并一同返回。
override
dispose() → void
Keep a dispose method to sync with State. 保留一个 dispose 方法与 State 同步。
inherited
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
inherited
initStateAndTicker(AssetPickerViewerState<AssetEntity, AssetPathEntity> s, TickerProvider v) → void
Call when viewer is calling initState. 当预览器调用 initState 时注册 State 和 TickerProvider。
inherited
momentVideoBackButton(BuildContext context) → Widget
The back button when previewing video in SpecialPickerType.wechatMoment. 使用 SpecialPickerType.wechatMoment 预览视频时的返回按钮
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
onChangingSelected(BuildContext context, AssetEntity asset, bool isSelected) → Future<void>
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
inherited
selectAsset(AssetEntity entity) → void
inherited
selectButton(BuildContext context) → Widget
Select button. 选择按钮
override
switchDisplayingDetail({bool? value}) → void
Method to switch isDisplayingDetail. 切换显示详情状态的方法
inherited
syncSelectedAssetsWhenPop() → Future<bool>
Sync selected assets currently with asset picker provider. 在预览中当前已选的图片同步到选择器的状态
inherited
toString() → String
A string representation of this object.
inherited
unSelectAsset(AssetEntity entity) → void
inherited
updateAnimation(ExtendedImageGestureState state) → void
Execute scale animation when double tap. 双击时执行缩放动画
inherited

Operators

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