BaseWebImage class

Inheritance
Available Extensions

Constructors

BaseWebImage(String? imageUrl, {Key? key, String? cacheKey, String? cacheTag, Widget? placeholder, Widget? errorWidget, double? width, double? height, BoxFit? fit, ValueChanged<ImageInfo?>? imageCompletionHandler, int retries = 3, Duration? timeLimit, Map<String, String>? headers})
const

Properties

cacheKey → String?
final
cacheTag → String?
final
errorWidget → Widget?
final
fit → BoxFit?
final
hashCode → int
The hash code for this object.
no setterinherited
headers → Map<String, String>?
final
height → double?
final
imageCompletionHandler → ValueChanged<ImageInfo?>?
final
imageUrl → String?
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
placeholder → Widget?
final
retries → int
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
timeLimit → Duration?
final
width → double?
final

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's 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}) → 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

Static Properties

logEnabled ↔ bool
getter/setter pair

Static Methods

cacheGetFile(String url, {String? cacheKey, String? cacheTag}) → Future<File?>
取缓存文件
cachePutFile({required String url, required File file, String? cacheTag}) → Future<File?>
手动缓存文件
clean(String url, {String? cacheKey, String? cacheTag}) → void
删除缓存图片
clearDiskCachedImages({Duration? duration, String? cacheTag}) → Future<bool>
Clear the disk cache directory then return if it succeed.
clip({String? url, String? cacheKey, String? cacheTag, Widget? placeholder, ValueChanged<ImageInfo?>? imageCompletionHandler, Widget? errorWidget, double? width, double? height, BoxFit? fit, int retries = 3, Duration? timeLimit, Map<String, String>? headers, double? borderRadius, Color? placeholderColor, bool round = false}) → Widget
downloadFile(String url, {bool useCache = true, String? cacheKey, String? cacheTag}) → Future<File?>
下载图片并缓存
getNetworkImageData(String url, {bool useCache = true, String? cacheKey, String? cacheTag, StreamController<ImageChunkEvent>? chunkEvents}) → Future<Uint8List?>
get network image data from cached
keyToTagMd5(String url, String? cacheKey, String? cacheTag) → String?