小技巧四则： 点击空白处隐藏input，下拉刷新，全局变量

一：点击空白处隐藏input，点击评论出现

wxml:

1. <scroll-view style="height: {{windowHeight}}px; width: {{windowWidth}}px;" scroll-y="true" bindscrolltoupper="pullDownRefresh" bindscrolltolower="pullUpLoad" bindtap="click_blank">
2. <view wx:if="{{comment}}" class="comment-input"><input type="text" name="content" auto-focus placeholder-style="margin-top:-8rpx;" placeholder="{{comment_placeholder}}" bindchange="comment_input" /><button>发送</button></view>

js:

1. // 评论（点击空白处隐藏input，点击评论出现）
2. click_blank:function(e){
3. var flag = "";
4. var comment_placeholder ="";
5. if(e.target.dataset.comment==1){
6. flag = true;
7. comment_placeholder = e.target.dataset.username;
8. }else{
9. flag = false;
10. comment_placeholder = "";
11. }
12. this.setData({
13. comment:flag,
14. comment_placeholder:"评论"+comment_placeholder+"动态"
15. })
16. },

二：下拉刷新

wxml:

1. <view wx:if="{{items}}">
2. <scroll-view scroll-y="true" bindscrolltoupper="upper" bindscrolltolower="lower" style="height: {{windowHeight}}px">
3. <view wx:for="{{items}}">
4. <view class="item">
5. <view class="item-top">
6. <view class="avatar" wx:if="{{item.avatar}}">
7. <image mode="aspectFill" src="{{'https://uerb.net/'+item.avatar}}"></image>
8. </view>
9. <view class="avatar" wx:else><image mode="aspectFill" src="../img/default_img.png"></image></view>
10. <view class="item-username">
11. <text>{{item.username}}{{item.jobname}}</text>
12. </view>
13. <view class="item-time">{{item.adddate}}</view>
14. </view>
15. </view>
16. </view>
17. <view wx:if="{{hasMore}}">
18. <view wx:if="{{nomore}}" class="tips">
19. <text>没有更多内容了</text>
20. </view>
21. <view wx:else class="tips">
22. <image src="../img/loading.gif" mode="aspectFill"/>
23. <text>玩了命的加载中...</text>
24. </view>
25. </view>
26. </scroll-view>
27. <loading hidden="{{loading}}">加载中...</loading>

js:

1. Page({
2. data: {
3. windowHeight:"",//屏幕高
4. page:1,
5. totalPage:"",//总页数
6. nomore:false,//加载完所有信息显示
7. <