CanvasApiImpl class
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
initCanvas(
LabelStyle style) → Future< void> -
初始化画布.
指定打印标签的画布大小、基础格式
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
printCanvas(
int count, PrintResult listener) → Future< void> -
开始打印画布内容
override
-
renderArea(
AreaStyle format) → Future< void> -
在画布上绘制图形.
override
-
renderBarCode(
String code, BarcodeStyle style) → Future< void> -
在画布上绘制条形码.
override
-
renderBitmap(
Uint8List bitmap, BitmapStyle style) → Future< void> -
在画布上绘制位图.
override
-
renderQrCode(
String text, QrStyle style) → Future< void> -
在画布上绘制二维码.
override
-
renderText(
String text, TextStyle style) → Future< void> -
在画布上绘制文本内容.
override
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Properties
- instance → CanvasApiImpl
-
no setter