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taro3-cropper

v1.0.0

Published

Taro框架下的图片裁剪组件封装,开箱即用

Downloads

6

Readme

taro-cropper

兼容Taro v3.x

项目地址: https://github.com/jenerse/taro3-cropper

forked from: https://github.com/SunnyQjm/taro-cropper

TaroCropper 是Taro小程序框架下使用的图片裁剪,基于canvasAPI进行实现,支持滑动和缩放,目前测试在微信小程序端, QQ小程序端, 支付宝小程序端, 字节跳动小程序端, 百度小程序端和H5端可以正常使用。

使用方式

  • 首先用npm安装

    npm install --save taro-cropper
  • 引入组件库

    import { TaroCropper } from 'taro-cropper';
  • 在项目配置文件 config/index.js 中添加如下配置

    h5: {
        esnextModules: ['taro-cropper']
    }

    该配置的作用是,在H5端使用本库的时候,对应的单位会进行转换(px => rem

  • 在代码中使用

    <TaroCropper
      fullScreen
      onCut={res => {
           this.setState({
           cutImagePath: res
          })
      }}
    />

    具体的使用实例参考taro-cropper-demo

参数说明

| 参数名 | 参数类型 | 参数说明 | 默认值 | | :----------------: | :----------------------------: | :----------------------------------------------------------: | --------------------- | | cropperCanvasId | string | 用于绘制的Canvas的id | cropperCanvasId | | cropperCutCanvasId | string | 用于裁剪的Canvas的id | cropperCutCanvasId | | width | number | 整个控件的宽度(单位为rpx) | 750(即充满屏幕宽度) | | height | number | 整个控件的高度(单位为rpx) | 1200 | | cropperWidth | number | 裁剪框的宽度(单位为rpx) | 400 | | cropperHeight | number | 裁剪框的高度(单位为rpx) | 400 | | themeColor | string | 主题色(裁剪框四角的颜色以及底部完成按钮的颜色) | #0f0(绿色) | | maxScale | number | 最大放大倍数(maxScale > 1) | 3 | | fullScreen | boolean | 控件是否充满全屏 | false | | src | string | 待裁剪的图片的路径 | ‘’ | | hideFinishText | boolean | 是否隐藏底部的完成按钮 | false | | onCut | (cutImagePath: string) => void | 点击底部完成按钮时会执行裁剪操作,可以通过此回调接收裁剪结果 | () => {} | | onFail | (err) => void | 裁剪失败的回调 | () => {} | | hideCancelText | boolean | 是否隐藏取消按钮 | true | | onCancel | () => void | 点击取消按钮的回调 | () => {} | | finishText | string | 完成按钮文字 | 完成 | | cancelText | string | 取消按钮文字 | 取消 | | fileType | 'jpg' | 'png' | string | 裁剪后导出的图片的格式,只支持 'jpg' 或 'png' | 'jpg' | | quality | number | 导出图片的质量,取值为 0 ~ 1(1表示质量最高) | 1 |

效果展示