opendLocation(event){ var that = this; wx.openLocation({ latitude: that.data.action.latitude, longitude: that.data.action.longitude, }) }, previewImg(event){ var that = this; console.log(event) wx.previewImage({ current: event.currentTarget.dataset.src,//当前显示图片的路径 urls: that.data.action.images, }) }, onLoad: function (options) { this.setData({ openid : app.globalData.openid }) console.log(options.id) this.data.id = options.id this.getDetail() }, getDetail(){ var that = this; wx.cloud.database().collection('shop_actions').doc(this.data.id).get({ success(res){ console.log(res) var action = res.data action.time = util.formatTime(new Date(action.time)) for(var l in action.prizeList){ if(action.prizeList[l].openid == app.globalData.openid){ action.isPrized = true } } for(var l in action.commentList){ action.commentList[l].time = util.formatTime(new Date(action.commentList[l].time)) } that.setData({ action: res.data }) } }) }, delete(){ console.log(this.data.id) var that = this; wx.cloud.database().collection('shop_actions').doc(this.data.id).remove({ success(res){ console.log(res) wx.navigateBack({ success(res){ wx.showToast({ title: '删除成功!', }) } }) } }) }, pirzeAction(event){ var that = this; if(app.globalData.userInfo == null){ wx.switchTab({ url: '/pages/me/me', success(){ wx.showToast({ icon:'error', title: '请登录', }) } }) }else { console.log(that.data.id) var that = this; wx.cloud.database().collection('shop_actions').doc(that.data.id).get({ success(res){ console.log(res) var action = res.data var tag = false var index for(var l in action.prizeList){ if(action.prizeList[l].openid == app.globalData.openid){ tag = true index = l break } }
时间: 2023-06-14 19:07:50 浏览: 190
这段代码是小程序中的一些功能实现,包括打开地理位置、预览图片、加载页面、删除操作、奖励操作等。其中用到了微信小程序提供的API函数,如wx.openLocation()、wx.previewImage()、wx.cloud.database()等。同时,在获取数据时使用了异步回调函数success()来处理返回的数据。
相关问题
buttonTap: { wx.getLocation({ type:'gcj02', success:function (res) { wx.openLocation({ latitude: res.latitude, longitude: res.longitude, }) } }) } data: { latitude:"45.743291" ,longitude="127.2126" markers:[{ iconPath:'/images/navi.png', id:0, latitude:"45.743291" ,longitude="127.2126", width:50, height:50 }] } markertap: function() { wx.openLocation({ latitude: this.data.latitude, longitude: this.data.longitude, name:'哈尔滨信息工程学院', address:'' }) } function()报错
这段代码中存在一些语法错误和逻辑错误,可能会导致程序运行出错:
1. 在data对象中,longitude的赋值符号应该是冒号而不是等号,应该改为:
```
data: {
latitude: "45.743291",
longitude: "127.2126",
markers: [{
iconPath: '/images/navi.png',
id: 0,
latitude: "45.743291",
longitude: "127.2126",
width: 50,
height: 50
}]
}
```
2. buttonTap事件中调用了wx.getLocation方法,但是该方法是异步的,因此需要使用回调函数来获取位置信息。可以将wx.getLocation的调用放到一个单独的函数中,并在成功获取位置信息后调用wx.openLocation方法。改进后的代码如下:
```
buttonTap: function() {
var that = this;
wx.getLocation({
type: 'gcj02',
success: function(res) {
that.openLocation(res.latitude, res.longitude);
}
})
},
openLocation: function(latitude, longitude) {
wx.openLocation({
latitude: latitude,
longitude: longitude,
name: '哈尔滨信息工程学院',
address: ''
})
},
```
3. markertap事件中调用了wx.openLocation方法,但是传入的参数不正确,应该是this.data.markers[0].latitude和this.data.markers[0].longitude,而不是this.data.latitude和this.data.longitude。改进后的代码如下:
```
markertap: function() {
wx.openLocation({
latitude: this.data.markers[0].latitude,
longitude: this.data.markers[0].longitude,
name: '哈尔滨信息工程学院',
address: ''
})
},
```
希望这些改动能够解决你的问题。
为代码:Page({ /** * 页面的初始数据 */ data: { //经纬度 latitude: 45.745842, longitude: 127.212255, markers: [{ latitude: 45.745842, longitude: 127.212255, width: 35, height: 50 }] }, onLoad: function() { var that = this; wx.getLocation({ type: 'gcj02', success: function(res) { that.setData({ latitude: res.latitude, longitude: res.longitude, }); } }); }, moveToLocation() { let that = this; wx.chooseLocation({ success: function (res) { console.log(res.name); that.setData({ mapName: res.name, latitude: res.latitude, longitude: res.longitude, markers: [{ latitude: res.latitude, longitude: res.longitude, width: 35, height: 50 }] }); }, fail: function () { console.log(err); } }); }, locateMe: function() { let that = this; wx.getLocation({ type: 'gcj02', success: function(res) { that.setData({ latitude: res.latitude, longitude: res.longitude, markers: [{ id: 0, latitude: res.latitude, longitude: res.longitude, width: 35, height: 50 }] }); }, fail: function() { console.log(err); }, }); }, onSearchInputChange: function(event) { var that = this; var searchValue = event.detail.value; if (searchValue) { wx.getLocation({ type: 'gcj02', success: function(res) { var latitude = res.latitude; var longitude = res.longitude; var marker = { id: 0, latitude: latitude, longitude: longitude, width: 50, height: 50, }; this.setData({ longitude: longitude, latitude: latitude, markers: [marker] }); } }); } } })添加注释
/*
该代码实现了一个小程序页面的地图定位功能,包括以下几个函数:
1. onLoad:页面加载时获取用户的地理位置信息,并在地图上显示出来;
2. moveToLocation:让用户手动选择一个地点并在地图上标记出来;
3. locateMe:重新获取用户的地理位置信息,并在地图上显示出来;
4. onSearchInputChange:当用户在搜索框中输入关键字时,根据关键字在地图上标记出相关的位置。
*/
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