## API
### TDImage
#### 默认构造方法

| 参数 | 类型 | 默认值 | 说明 |
| --- | --- | --- | --- |
| imgUrl | String? | - | 图片地址 |
| key |  | - |  |
| type | TDImageType | TDImageType.roundedSquare | 图片类型 |
| errorWidget | Widget? | - | 失败自定义提示 |
| loadingWidget | Widget? | - | 加载自定义提示 |
| width | double? | - | 自定义宽 |
| height | double? | - | 自定义高 |
| fit | BoxFit? | - | 适配样式 |
| frameBuilder | ImageFrameBuilder? | - | 以下系统Image属性，释义请参考系统[Image]中注释 |
| loadingBuilder |  | - |  |
| errorBuilder |  | - |  |
| semanticLabel |  | - |  |
| excludeFromSemantics |  | false |  |
| color |  | - |  |
| opacity |  | - |  |
| colorBlendMode |  | - |  |
| alignment |  | Alignment.center |  |
| repeat |  | ImageRepeat.noRepeat |  |
| centerSlice |  | - |  |
| matchTextDirection |  | false |  |
| gaplessPlayback |  | false |  |
| isAntiAlias |  | false |  |
| filterQuality |  | FilterQuality.low |  |
| cacheHeight |  | - |  |
| cacheWidth |  | - |  |
| assetUrl | String? | - | 本地素材地址 |
| imageFile | File? | - | 图片文件路径 |