DefaultAssetPickerBuilderDelegate class

Inheritance

• Object
• AssetPickerBuilderDelegate<AssetEntity, AssetPathEntity>
• DefaultAssetPickerBuilderDelegate

Constructors

DefaultAssetPickerBuilderDelegate({required DefaultAssetPickerProvider provider, int gridCount = 4, Color? themeColor, AssetsPickerTextDelegate? textDelegate, ThemeData? pickerTheme, SpecialItemPosition specialItemPosition = SpecialItemPosition.none, WidgetBuilder? specialItemBuilder, IndicatorBuilder? loadingIndicatorBuilder, bool allowSpecialItemWhenEmpty = false, int gridThumbSize = Constants.defaultGridThumbSize, List<int>? previewThumbSize, SpecialPickerType? specialPickerType})

Properties

allowSpecialItemWhenEmpty → bool

Whether the special item will display or not when assets is empty. 当没有资源时是否显示自定义item

final, inherited

appBarItemHeight → double

Item's height in app bar. 顶栏内各个组件的统一高度

no setter, inherited

appleOSBlurRadius → double

Blur radius in Apple OS layout mode. 苹果系列系统布局方式下的模糊度

no setter, inherited

bottomActionBarHeight → double

Height for bottom action bar. 底部操作栏的高度

no setter, inherited

gridCount → int

Assets count for the picker. 资源网格数

final, inherited

gridScrollController → ScrollController

The ScrollController for the preview grid.

final, inherited

gridThumbSize → int

Thumbnail size in the grid. 预览时网络的缩略图大小

final

hashCode → int

The hash code for this object.

no setter, inherited

isAppleOS → bool

Whether the current platform is Apple OS. 当前平台是否苹果系列系统 (iOS & MacOS)

no setter, inherited

isPreviewEnabled → bool

Whether the preview of assets is enabled. 资源的预览是否启用

no setter

isSingleAssetMode → bool

Whether the picker is under the single asset mode. 选择器是否为单选模式

no setter, inherited

isWeChatMoment → bool

Whether the SpecialPickerType.wechatMoment is enabled. 当前是否为微信朋友圈选择模式

no setter

itemSpacing → double

Space between assets item widget. 资源部件之间的间隔

no setter, inherited

loadingIndicatorBuilder → IndicatorBuilder?

Indicates the loading status for the builder. 指示目前加载的状态

final, inherited

overlayStyle → SystemUiOverlayStyle

Return a system ui overlay style according to the brightness of the theme data. 根据主题返回状态栏的明暗样式

no setter, inherited

pickerTheme → ThemeData?

Theme for the picker. 选择器的主题

final, inherited

previewThumbSize → List<int>?

Preview thumbnail size in the viewer. 预览时图片的缩略图大小

final

provider → AssetPickerProvider<AssetEntity, AssetPathEntity>

ChangeNotifier for asset picker. 资源选择器状态保持

final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

specialItemBuilder → WidgetBuilder?

The widget builder for the the special item. 自定义item的构造方法

final, inherited

specialItemPosition → SpecialItemPosition

Allow users set a special item in the picker with several positions. 允许用户在选择器中添加一个自定义item，并指定位置

final, inherited

specialPickerType → SpecialPickerType?

The current special picker type for the picker. 当前特殊选择类型

final

switchingPathCurve → Curve

Curve when triggering path switching. 切换路径时的动画曲线

no setter

switchingPathDuration → Duration

Duration when triggering path switching. 切换路径时的动画时长

no setter

theme → ThemeData

ThemeData for the picker. 选择器使用的主题

no setter, inherited

themeColor → Color

Main color for the picker. 选择器的主题色

final, inherited

Methods

androidLayout(BuildContext context) → Widget

Layout for Android devices. Android设备的选择器布局

override

appBar(BuildContext context) → PreferredSizeWidget

Custom app bar for the picker. 选择器自定义的顶栏

override

appleOSLayout(BuildContext context) → Widget

Layout for Apple OS devices. 苹果系列设备的选择器布局

override

assetGridItemBuilder(BuildContext context, int index, List<AssetEntity> currentAssets) → Widget

There're several conditions within this builder:

override

assetsGridBuilder(BuildContext context) → Widget

The main grid view builder for assets. 主要的资源查看网格部件

inherited

assetsGridItemCount(BuildContext context, List<AssetEntity> currentAssets) → int

The function which return items count for the assets' grid. 为资源列表提供内容数量计算的方法

override

audioIndicator(BuildContext context, AssetEntity asset) → Widget

Audio asset type indicator. 音频类型资源指示

override

audioItemBuilder(BuildContext context, int index, AssetEntity asset) → Widget

The item builder for audio type of asset. 音频资源的部件构建

override

backButton(BuildContext context) → Widget

Back button. 返回按钮

inherited

bottomActionBar(BuildContext context) → Widget

Action bar widget aligned to bottom. 底部操作栏部件

inherited

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~

inherited

confirmButton(BuildContext context) → Widget

It'll pop with AssetPickerProvider.selectedAssets when there are any assets were chosen. 当有资源已选时，点击按钮将把已选资源通过路由返回。

override

failedItemBuilder(BuildContext context) → Widget

Item widgets when the thumb data load failed. 资源缩略数据加载失败时使用的部件

inherited

findChildIndexBuilder(String id, List<AssetEntity> currentAssets) → int

Indicates how would the grid found a reusable RenderObject through id. 为 Grid 布局指示如何找到可复用的 RenderObject。

override

gifIndicator(BuildContext context, AssetEntity asset) → Widget

GIF image type indicator. GIF类型图片指示

inherited

imageAndVideoItemBuilder(BuildContext context, int index, AssetEntity asset) → Widget

The item builder for images and video type of asset. 图片和视频资源的部件构建

override

loadingIndicator(BuildContext context) → Widget

Loading indicator. 加载指示器

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

pathEntityListBackdrop(BuildContext context) → Widget

While the picker is switching path, this will displayed. If the user tapped on it, it'll collapse the list widget.

override

pathEntityListWidget(BuildContext context) → Widget

List widget for path entities. 路径选择列表组件

override

pathEntitySelector(BuildContext context) → Widget

Path entity select widget builder. 路径选择部件构建

override

pathEntityWidget({required BuildContext context, required Map<AssetPathEntity, Uint8List?> list, required int index, bool isAudio = false}) → Widget

Item widgets for path entity selector. 路径单独条目选择组件

override

previewButton(BuildContext context) → Widget

Preview button to preview selected assets. 预览已选资源的按钮

override

selectedBackdrop(BuildContext context, int index, AssetEntity asset) → Widget

Animated backdrop widget for items. 部件选中时的动画遮罩部件

override

selectIndicator(BuildContext context, AssetEntity asset) → Widget

Indicator for assets selected status. 资源是否已选的指示器

override

toString() → String

A string representation of this object.

inherited

videoIndicator(BuildContext context, AssetEntity asset) → Widget

Videos often contains various of color in the cover, so in order to keep the content visible in most cases, the color of the indicator has been set to Colors.white.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited