[Mini Program] Experience sharing of the first mini program developed

DoubanAPI

I read the documentation of the mini program in the past few days, and then spent some time writing a mini program with little content. I originally wanted to write the API interface myself, but the domain name requested by the mini program requires both registration and HTTPS, so I gave up because it was too troublesome. Later, I chose the Douban API, and found that the mini program blocked the Douban API. Fortunately, there was a master on the Internet who set up a proxy server.

With Douban's API, I plan to make a small book similar to it, record some movies I have watched, and then pull the relevant ratings and posters from Douban. Unfortunately, the maximum resolution of the posters provided by Douban API is also very low, resulting in a very poor look and feel of the mini program, but there is no way, after all, it is someone else's stuff...

Modify the attributes of the data neutron object

The data obtained after using wx.request must be written to the data of Page. Different from Vue.js, the applet needs Call this.setData. At the same time, if the properties in the object are modified when writing, you should define a variable to connect the string composed of the object and properties, and then use square brackets [] Wrap it up. For example:

var temp='person.name';
......

this.setData({
    [temp]:'Mike'
})

Rating starization

Involves the starization of ratings in the interface, and a relatively stupid method is used here. It is to prepare pictures of the three possible states of the stars, then calculate the specific score array based on the scores, and finally traverse the array to correspond to the state that each star should display.

<block wx:for="{{dbMarkArr||myStarArr}}" wx-for-item="item" >
    <image wx:if="{{item===0}}" src=&#39;../../static/image/empty.png&#39;></image>
    <image wx:if="{{item===1}}" src=&#39;../../static/image/half.png&#39;></image>
    <image wx:if="{{item===2}}" src=&#39;../../static/image/full.png&#39;></image>
</block>

A small pitfall of the template

The template of the mini program is used heretemplate. It should be noted that there is a pitfall here. The file name of the template must be consistent with the name in the template.

Problems caused by network delay

During page rendering, Douban data may not be returned in time due to network problems, which may further cause the page template to set data.data# The value in ## is not the required value. I struggled here for a long time, and finally chose a rather inelegant approach, which was to delay the execution of the function that sets the relevant data for 2 seconds. If Douban data can be returned within 2 seconds, then the problem seems to be solved. If no valid data is obtained within 2 seconds, the problem is not solved. Furthermore, 2 seconds definitely has a considerable impact on the user experience, but I don’t know how to solve it here...

Unused calendar

In the early days of the mini program , I originally planned to implement the function of clicking on the calendar to jump to the corresponding movie page, but later I felt it was not good and did not do it, but the calendar implemented it again. The idea is relatively clear. First get the current time, calculate the days of the week that the first and last days of the current month correspond to, and then calculate how many days before the first day and after the last day should be displayed. Then connect last month, this month, and next month into an array, and then divide the weeks according to the array:

for (var i = 0; i < calendar.length; i++) {
      if (i % 7 == 0) {
        weeks[parseInt(i / 7)] = new Array(7);
      }
      weeks[parseInt(i / 7)][i % 7] = calendar[i];
    }

Then render:

<view class=&#39;calendarBody&#39;>
    <block wx:for="{{calendar.weeks}}" wx:for-item="weeks" >
      <view class=&#39;calendar-body-weeks&#39;>
        <block wx:for="{{weeks}}" wx:for-item="day">
          <view class="calendar-body-day {{calendar.month==day.month&&calendar.date==day.date? &#39;is-current&#39;:&#39; &#39;}} {{calendar.month!=day.month?&#39;nou-curMonth&#39;:&#39; &#39;}}" data-date=&#39;{{day.date}}&#39; bindtap=&#39;selectDate&#39;>{{day.date}}</view>
        </block>
      </view>
    </block>
</view>

Finally

It’s just a small program to try out, and there is still a long way to go.

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