164 lines
4.5 KiB
JavaScript
164 lines
4.5 KiB
JavaScript
// components/imageUpload/imageUpload.js
|
|
Component({
|
|
/**
|
|
* 组件的属性列表
|
|
*/
|
|
properties: {
|
|
// 最大上传个数
|
|
maxLength: {
|
|
type: Number,
|
|
value: 9
|
|
},
|
|
// 单个图片限制 单位MB
|
|
maxSize: {
|
|
type: Number,
|
|
value: 1
|
|
}
|
|
},
|
|
|
|
/**
|
|
* 组件的初始数据
|
|
*/
|
|
data: {
|
|
// 图片路径数组
|
|
tempFilePaths: []
|
|
},
|
|
|
|
/**
|
|
* 组件的方法列表
|
|
*/
|
|
methods: {
|
|
// 选择图片
|
|
upload() {
|
|
let that = this;
|
|
let maxSize = this.data.maxSize * 1024 * 1024
|
|
let flag = true
|
|
let maxLength = this.data.maxLength
|
|
console.log("maxLength",maxLength);
|
|
wx.chooseImage({
|
|
count: maxLength, // 默认9
|
|
sizeType: ['original', '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 => {
|
|
wx.showToast({
|
|
title: '正在上传...',
|
|
icon: 'loading',
|
|
mask: true,
|
|
duration: 1000
|
|
})
|
|
// 判断数量
|
|
if (res.tempFiles.length > maxLength) {
|
|
wx.hideToast()
|
|
flag = false
|
|
wx.showToast({
|
|
title: `最多上传${maxLength}张`,
|
|
mask: true,
|
|
duration: 1000
|
|
})
|
|
return false
|
|
}
|
|
res.tempFiles.forEach(item => {
|
|
if (item.size > maxSize) {
|
|
wx.hideToast()
|
|
flag = false
|
|
wx.showModal({
|
|
title: '错误提示',
|
|
content: `图片大于${that.data.maxSize}M`,
|
|
showCancel: false,
|
|
success(res) {
|
|
if (res.confirm) {
|
|
console.log('用户点击确定')
|
|
}
|
|
}
|
|
})
|
|
return false
|
|
}
|
|
})
|
|
// 返回选定照片的本地文件路径列表，tempFilePath可以作为img标签的src属性显示图片
|
|
let tempFilePaths = res.tempFilePaths;
|
|
if (flag) {
|
|
that.setData({
|
|
tempFilePaths: tempFilePaths
|
|
})
|
|
}
|
|
/**
|
|
* 上传完成后把文件上传到服务器
|
|
*/
|
|
// if (flag) {
|
|
// let count = 0;
|
|
// for (let i = 0; i < tempFilePaths.length; i++) {
|
|
// //上传文件
|
|
// wx.uploadFile({
|
|
// url: 'imgUploadUrl',
|
|
// filePath: tempFilePaths[i],
|
|
// name: 'uploadfile_ant',
|
|
// header: {
|
|
// "Content-Type": "multipart/form-data"
|
|
// },
|
|
// success: function (res) {
|
|
// console.log("上传图片", res);
|
|
// count++;
|
|
// //如果是最后一张,则隐藏等待中
|
|
// if (count == tempFilePaths.length) {
|
|
// wx.hideToast();
|
|
// }
|
|
// },
|
|
// fail: function (res) {
|
|
// wx.hideToast();
|
|
// wx.showModal({
|
|
// title: '错误提示',
|
|
// content: '上传图片失败',
|
|
// showCancel: false,
|
|
// success: function (res) {}
|
|
// })
|
|
// }
|
|
// });
|
|
// }
|
|
// }
|
|
},
|
|
|
|
fail(err) {
|
|
console.log("失败", err);
|
|
}
|
|
})
|
|
},
|
|
// 预览图片
|
|
previewImage(e) {
|
|
console.log("e", e);
|
|
let index = e.target.dataset.index;
|
|
let that = this;
|
|
wx.previewImage({
|
|
current: that.data.tempFilePaths[index],
|
|
urls: that.data.tempFilePaths,
|
|
success: function (res) {
|
|
console.log("res", res);
|
|
},
|
|
fail: function (fail) {
|
|
//console.log('fail')
|
|
}
|
|
})
|
|
},
|
|
// 删除图片
|
|
deleteImage(e) {
|
|
let that = this;
|
|
let tempFilePaths = that.data.tempFilePaths;
|
|
let index = e.currentTarget.dataset.index; //获取当前长按图片下标
|
|
wx.showModal({
|
|
title: '提示',
|
|
content: '确定要删除此图片吗？',
|
|
success: function (res) {
|
|
if (res.confirm) {
|
|
console.log('确定');
|
|
tempFilePaths.splice(index, 1);
|
|
} else if (res.cancel) {
|
|
console.log('取消');
|
|
return false;
|
|
}
|
|
that.setData({
|
|
tempFilePaths
|
|
});
|
|
}
|
|
})
|
|
}
|
|
}
|
|
}) |