微信小程序开发之实现心情记事本
作者：失散多年的哥哥
这篇文章主要为大家详细介绍了如何通过微信小程序开发一个简单的心情记事本，文中的示例代码讲解详细，感兴趣的小伙伴可以和小编一起学习一下
一、项目展示
心情记事本是一款可以记录当前心情和生活的记事本
用户可以选择当前的心情（开心、平淡、伤心）和表情
并结合自己想要描述的文字
就可以记录当前的心情了
为了更好的展现用户的心情
项目罗列了大量的精美表情
缩略图如下：
项目的展示图如下：
二、首页
首页主要由日历组件和自制的记录组件结合而成
主要代码如下：
<view class="container">
<view class="title">
<view class="left-arrow" bindtap="prev_month"> <image src="/asset/images/left-arrow.svg" class="arrow"></image> </view>
<picker mode="date" value="{{date}}" fields="month" start="{{start_date}}" end="{{end_date}}" bindchange="select_date">
<view class="date-picker"> {{now_date}} </view>
</picker>
<view class="right-arrow" bindtap="next_month"> <image src="/asset/images/right-arrow.svg" class="arrow"></image> </view>
</view>
<view class="divider-box">
<image src="/asset/images/divider.svg" class="divider"></image>
</view>
<view class="calender">
<view class="calender-header">
<image src="/asset/images/SUN.svg" class="week-item"></image>
<image src="/asset/images/MON.svg" class="week-item"></image>
<image src="/asset/images/TUE.svg" class="week-item"></image>
<image src="/asset/images/WED.svg" class="week-item"></image>
<image src="/asset/images/THU.svg" class="week-item"></image>
<image src="/asset/images/FRI.svg" class="week-item"></image>
<image src="/asset/images/SAT.svg" class="week-item"></image>
</view>
<view class="calender-body">
<block wx:for="{{ date_arr }}" wx:key="key">
<view class="date-item date-enabled-{{item.enabled}} date-today-{{item.today}} ">
<span>{{item.date}}</span>
<block wx:if="{{item.emotion_value}}">
<image src="/asset/images/circle-{{item.emotion_value}}.svg" class="circle"></image>
</block>
</view>
</block>
</view>
</view>
<view class="diary">
<view wx:for="{{ items }}" wx:key="{{key}}">
<view class="diary-item" key="{{key}}" bindtap="detail" data-key="{{ item.key }}">
<view class="diary-date">
<view class="date">{{ item.value['date']}}</view>
<view class="day">{{ item.value['week']}}</view>
</view>
<image src="/asset/images/virtical-divider.svg" class="virtical-divider"></image>
<view class="emoji">
<image src="/asset/emojis/{{ item.value['emoji_type']}}.svg" class="emoji-image"></image>
</view>
<image src="/asset/images/virtical-divider.svg" class="virtical-divider"></image>
<view class="text">{{ item.value['text'] }}</view>
<image class="more-arrow" src="/asset/images/more-arrow.svg"></image>
</view>
</view>
</view>
</view>
<image src="/asset/images/add-button.svg" class="add-button" bindtap="blank_modal"></image>
<view class="cover" wx:if="{{modal_visiable}}" bindtap="cancle"></view>
<view class="modal ripple bounceInDown" wx:if="{{modal_visiable}}">
<view class="create-box">
<image src="/asset/images/close-button.svg" class="close-button" bindtap="cancle"></image>
<image src="/asset/emojis/{{ emoji_indicator }}.svg" class="emoji-image"></image>
<view class="emoji-select-box">
<picker-view indicator-style="height: 50px;" value="{{ emoji_defaul_value }}" class="emoji-picker" bindchange="select_emoji">
<picker-view-column>
<view style="line-height: 50px; color: #797979">伤心的表情</view>
<view style="line-height: 50px; color: #797979">开心的表情</view>
<view style="line-height: 50px; color: #797979">平淡的表情</view>
</picker-view-column>
<picker-view-column>
<view wx:for="{{ emoji_list }}" wx:key="key">
<image src="/asset/emojis/{{ item }}.svg" style="height: 100%; width: 100rpx;"></image>
</view>
</picker-view-column>
</picker-view>
</view>
<block wx:if="{{ is_newbee }}">
<textarea placeholder="选择表达今天心情的emoji, 或者在此写点文字, enjoy ~ ~" value="{{ text }}" bindinput="input" placeholder-style="color:#9B9B9B;font-size:26rpx;line-height:46rpx" class="text"/>
</block>
<block wx:else>
<textarea placeholder="写点什么,当然你也可以什么都不写" value="{{ text }}" bindinput="input" placeholder-style="color:#9B9B9B;font-size:26rpx;" class="text"/>
</block>
<view class="button-box">
<block wx:if="{{ delete_button_visiable}}">
<view class="delete-button" bindtap="delete" style="visibility: show">删除</view>
</block>
<block wx:else>
<view class="delete-button" bindtap="delete" style="visibility: hidden">删除</view>
</block>
<view class="submit-button" bindtap="save">保存</view>
</view>
</view>
</view>
let app = getApp()
let util = require('../../utils/util.js')
let date_formater = require('../../utils/date_formater.js')
let storage = require('../../utils/data_storage.js')
Page({
data: {
'date_arr': [],
'now_date': '2017-04-11',
'start_date': '2015-04-11',
'end_date': '2019-04-11',
'date': '',
'year': 0,
'month': 0,
'items': [],
'modal_visiable': false,
'emoji_list': [],
'emoji_indicator': 'face-with-stuck-out-tongue-and-winking-eye',
'emoji_defaul_value': [1, 1],
'text': '',
'item_key': '', //当前条目的key
'delete_button_visiable': false ,//modal中的删除按钮是否可见
'is_newbee': false // 是不是第一次使用
},
// 初始化页面数据
page_init: function(year, month) {
console.log(year + '-' + month + ' data had initialized')
let data = util.get_date(year, month)
let emojis = util.get_emojis()
this.setData({
'date_arr': data,
'now_date': date_formater.format_month(month) + ' ' +year,
'date': year + '-' + date_formater.add_date_prefix(month + 1) + '-01',
'year': year,
'month': month,
'start_date': year - 2 + '-' + date_formater.add_date_prefix(month + 1) + '-01',
'end_date': year + 2 + '-' + date_formater.add_date_prefix(month + 1) + '-01',
'items': storage.all(year, month),
'emoji_list': emojis['positive'],
})
},
onLoad: function() {
let date = new Date()
let year = date.getFullYear()
let month = date.getMonth()
let emojis = util.get_emojis()
this.page_init(year, month)
// let is_newbee = util.is_newbee()
let is_newbee = false
if(is_newbee) {
this.blank_modal()
}
this.setData({
'is_newbee': is_newbee
})
},
select_date: function(e) {
let date_str = e.detail.value
let date_arr = date_str.split('-')
let year = parseInt(date_arr[0])
let month = parseInt(date_arr[1]) - 1
this.page_init(year, month)
},
prev_month: function() {
let year = this.data.year
let month = this.data.month
if (month - 1 < 0) {
year = year - 1
month = 11
} else {
month = month - 1
}
this.page_init(year, month)
},
next_month: function() {
let year = this.data.year
let month = this.data.month
if (month + 1 > 11) {
year = year + 1
month = 0
} else {
month = month + 1
}
this.page_init(year, month)
},
modal: function() {
this.setData({
'modal_visiable': true,
'delete_button_visiable': true
})
},
blank_modal: function() {
this.setData({
'modal_visiable': true,
'emoji_indicator': 'face-with-stuck-out-tongue-and-winking-eye',
'emoji_defaul_value': [1, 1],
'text': '',
'delete_button_visiable': false
})
},
select_emoji: function(e) {
var val = e.detail.value
let emoji_type = val[0]
let emoji_index = val[1]
let emojis = util.get_emojis()
var emoji_list = []
if(emoji_type == 0) {
emoji_list = emojis['negative']
}
if(emoji_type == 1) {
emoji_list = emojis['positive']
}
if(emoji_type == 2){
emoji_list = emojis['neutral']
}
this.setData({
'emoji_list': emoji_list,
'emoji_indicator': emoji_list[emoji_index]
})
},
input : function(e) {
this.setData({
'text': e.detail['value']
})
// console.log(this.data.text)
},
save: function(){
let date = new Date()
let year = date.getFullYear()
let month = date.getMonth()
let day = date.getDate()
let key = year + '-' + date_formater.add_date_prefix(month + 1)+'-' + date_formater.add_date_prefix(day)
storage.add(key, this.data.emoji_indicator, 0, 0, 0, this.data.text)
this.page_init(year, month)
this.cancle()
},
delete: function() {
storage.del(this.data.item_key)
this.page_init(this.data.year, this.data.month)
this.cancle()
},
cancle: function() {
this.setData({
'modal_visiable': false
})
},
detail: function(e) {
let key = e.currentTarget.dataset.key
let item = storage.get(key)
let emoji_defaul_value = util.get_emoji_pos(item['emoji_type'])
this.setData({
'text': item['text'],
'emoji_indicator': item['emoji_type'],
'emoji_defaul_value' : emoji_defaul_value,
'item_key': key
})
this.modal()
}
})
三、效果图
具体的效果展示如下
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