addBitmap method Null safety

void addBitmap(
  1. {required int x,
  2. required int y,
  3. required ImageProvider<Object> bitmap,
  4. int? bitmapWidth,
  5. BlendMode mode = BlendMode.over,
  6. bool compress = false,
  7. bool dither = false}
)

添加图片

x 起点X坐标 y 起点Y坐标 bitmap 图片 bitmapWidth 图片打印宽度，毫米 mode 图片像素合成模式 compress 是否压缩图片 dither 是否抖动图片

Implementation

void addBitmap(
    {required int x,
    required int y,
    required ImageProvider bitmap,
    int? bitmapWidth,
    BlendMode mode = BlendMode.over,
    bool compress = false,
    bool dither = false}) {
  bitmap
      .resolve(ImageConfiguration.empty)
      .addListener(ImageStreamListener((image, synchronousCall) {
// todo
  }));
}