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 Methods

addTextWatermark(File file, String text, {Color color = Colors.white, double fontSize = 18, Offset offset = const Offset(10, 10)}) → Future<File>

给图片添加文字水印

addTextWatermarkToBytes(Uint8List bytes, String text, {Color color = Colors.white, double fontSize = 18, Offset offset = const Offset(10, 10)}) → Future<Uint8List>

给图片字节数据添加文字水印

captureWidget(GlobalKey<State<StatefulWidget>> key) → Future<Uint8List>

截取小部件的图片

compressImageBytes(Uint8List bytes, {int quality = 80}) → Future<Uint8List>

压缩图片数据

compressImageFile(File imageFile, {int quality = 80}) → Future<File>

压缩图片文件

getImageSize(Object image) → Future<Size>

获取图片宽高

isImage(File file) → Future<bool>

判断文件是否为图片

isImageFromBytes(Uint8List bytes) → bool

从字节数组判断是否为图片

isImageUrl(String imageUrl) → Future<bool>

判断图片地址是否为有效的图片

saveNetworkImage(String imageUrl) → Future<String>

保存网络图片到本地

saveScreenshot(Uint8List bytes) → Future<String>

保存截屏图片到本地