Detailed explanation of the bottom menu of WeChat applet action-sheet

WeChat applet action-sheet

action-sheet is a selection menu that pops up from the bottom. The submenu is specified by action-sheet-item and action-sheet-cancel. action-sheet-item is the menu item and action-sheet-cancel As the name suggests, it is to unhide the menu. We can trigger the response after clicking by adding bindtap to action-sheet-item. When action-sheet-cancel is clicked, the bindchange event of action-sheet will be triggered. The display of the menu can be controlled in the function bound to bindchange. In addition, the menu will also be hidden when clicking on a blank space.

Official document

.wxml

<button type="default" bindtap="actionSheetTap">弹出action sheet</button>
<action-sheet hidden="{{actionSheetHidden}}" bindchange="actionSheetChange">
  <block wx:for-items="{{actionSheetItems}}">
    <action-sheet-item bindtap="bind{{item}}">{{item}}</action-sheet-item>
  </block>
  <action-sheet-cancel >取消</action-sheet-cancel>
</action-sheet>

.js

var items = ['item1', 'item2', 'item3', 'item4']
var pageObject = {
 data: {
  actionSheetHidden: true,
  actionSheetItems: items
 },
 actionSheetTap: function(e) {
  console.log(this);
  this.setData({
   actionSheetHidden: !this.data.actionSheetHidden
  })
 },
 actionSheetChange: function(e) {
  this.setData({
   actionSheetHidden: !this.data.actionSheetHidden
  });
  console.log("点击ation-sheet-cancel，会触发action-sheet绑定的事件。在这里可以通过改变hidden控制菜单的隐藏");
 }
}
 
for (var i = 0; i < items.length; ++i) {
 (function(itemName) {
  pageObject[&#39;bind&#39; + itemName] = function(e) {
   console.log(&#39;click&#39; + itemName, e)
  }
 })(items[i])
}
 
Page(pageObject)

How to get the running effect

How about not hiding the image when clicking on a blank space? In addition, instead of automatically hiding the menu when you click Cancel, you have to write a sentence to hide it, which is really troublesome.