npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

miniprogram-cropper

v1.0.5

Published

小程序自定义组件:图片裁剪工具

Downloads

8

Readme

miniprogram-cropper

小程序自定义组件:图片裁剪工具

使用此组件需要依赖小程序基础库 2.2.1 以上版本,同时依赖开发者工具的 npm 构建。具体详情可查阅官方 npm 文档

安装

npm install miniprogram-cropper --save

使用

页面 page.json 中添加自定义组件
{
  "usingComponents": {
    "miniprogram-cropper": "miniprogram-cropper"
  }
}
页面 WXML 中引用自定义组件
<miniprogram-cropper id="crop" options="{{cropperOpt}}">
</miniprogram-cropper>

options 属性

参考 we-cropper 构造参数

组件 methods

参考 we-cropper 方法

如何在页面调用组件内方法

  • 获取组件实例
onLoad () {
  this.crop = this.selectComponent('#crop')
}
  • 调用组件内方法
// 载入图片
this.crop.pushOrign(tempFilePath)

// 获取裁剪图片
this.crop.getCropperImage()
  .then(function (path) {
    // Todo
  })

代码示例

page.wxml

<miniprogram-cropper id="crop" options="{{cropperOpt}}"></miniprogram-cropper>

 <view
    class="cropper-buttons" 
    :style="{ color:cropperOpt.boundStyle.color}">
    <view
        class="upload btn"
        bindtap="uploadTap">
        上传图片
    </view>
    <view
        class="getCropperImage btn"
        :style="{ backgroundColor: cropperOpt.boundStyle.color }"
        bindtap="getCropperImage">
        生成图片
    </view>
</view>

page.js

const device = wx.getSystemInfoSync()
const width = device.windowWidth
const height = device.windowHeight - 50

Page({
    crop: null,
    data: {
        cropperOpt: {
            id: 'cropper',
            targetId: 'targetCropper',
            pixelRatio: device.pixelRatio,
            width,
            height,
            scale: 2.5,
            zoom: 8,
            cut: {
                x: (width - 300) / 2,
                y: (height - 300) / 2,
                width: 300,
                height: 300
            },
            boundStyle: {
                color: '#ffffff',
                mask: 'rgba(0,0,0,0.8)',
                lineWidth: 1
            }
        }
    },

    uploadTap () {
        const self = this

        if (this.crop) {
            wx.chooseImage({
                count: 1, // 默认9
                sizeType: ['compressed'], // 可以指定是原图还是压缩图,默认二者都有
                sourceType: ['album', 'camera'], // 可以指定来源是相册还是相机,默认二者都有
                success (res) {
                    const src = res.tempFilePaths[0]
                    //  获取裁剪图片资源后,给data添加src属性及其值
            
                    self.crop.pushOrign(src)
                }
            })
        }
    },

    getCropperImage () {
        this.crop.getCropperImage()
            .then((src) => {
                wx.previewImage({
                current: '', // 当前显示图片的http链接
                urls: [src] // 需要预览的图片http链接列表
                })
            })
            .catch(() => {
                console.log('获取图片地址失败,请稍后重试')
            })
    },

    onLoad () {
        this.crop = this.selectComponent('#crop')

    }
})

LISENCE

MIT License