ImageUtil class

Constructors

ImageUtil()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Properties

base64CacheSize → int

获取base64缓存的大小

no setter

Static Methods

clearBase64Cache() → void

清空base64缓存

detectImageFormat(String filePath) → Future<String?>

getAvatarWidget(String? imagePath, {String defaultImagePath = 'avatar_default_single.png', double? width, double? height, BoxFit fit = BoxFit.cover}) → Widget

构建头像图片。头像地址为空或网络加载失败时展示指定的默认头像。

getBase64NaturalSize(String base64String) → Size?

获取 base64 图片的天然像素尺寸（使用 image_size_getter，命中缓存则直接返回）

getDecodedBase64(String base64String) → Uint8List?

从缓存中获取已解码的base64图片数据，如果不存在则解码并缓存

getFileNaturalSize(String filePath) → Size?

获取本地文件图片的天然像素尺寸（使用 image_size_getter，命中缓存则直接返回） filePath 支持普通路径或以 file:// 开头的路径

getImageWidget(String imagePath, {double? width, double? height, bool inRongCloud = true, Color? color, BoxFit fit = BoxFit.cover, String? thumbnailBase64String, bool notInAssets = false, Widget? errorWidget}) → Widget

获取图片 Widget，可以自动判断图片路径类型

limitCacheSize(int maxSize) → void

限制缓存大小，移除最早添加的项

removeFromCache(String base64String) → void

移除特定base64字符串的缓存