小程序自定义弹层组件

Posted 2020-12-10 grax

自己用到的，记录一下

1、效果图

2、弹层组件代码

a、js代码

 1 // components/dialog/index.js
 2 Component({
 3   options: {
 4     multipleSlots: true
 5   },
 6   properties: {
 7     //高度
 8     height: {
 9       type: String,
10       value: "60vh"
11     },
12     //标题
13     title: {
14       type: String,
15       value: ""
16     },
17     //是否显示标题
18     showTitle: {
19       type: Boolean,
20       value: false
21     },
22   },
23   data: {
24     show: false, //是否显示
25   },
26   methods: {
27     //隐藏显示
28     show: function(e) {
29 
30       var animation = wx.createAnimation({
31         duration: 200,
32         timingFunction: "linear",
33         delay: 0
34       })
35       animation.translateY(600).step()
36       this.setData({
37         animationData: animation.export(),
38         show: true
39       })
40       setTimeout(function() {
41         animation.translateY(0).step()
42         this.setData({
43           animationData: animation.export()
44         })
45       }.bind(this), 200)
46 
47 
48       return;
49       this.setData({
50         show: true
51       });
52       this.triggerEvent("showCallback");
53     },
54     hidden: function(e) {
55       var animation = wx.createAnimation({
56         duration: 250,
57         timingFunction: "linear",
58         delay: 0
59       })
60       animation.translateY(600).step()
61       this.setData({
62         animationData: animation.export(),
63       })
64       setTimeout(function() {
65         animation.translateY(0).step()
66         this.setData({
67           // animationData: animation.export(),
68           show: false
69         })
70       }.bind(this), 250)
71 
72       return;
73       this.setData({
74         show: false
75       });
76       this.triggerEvent("hideCallback");
77     }
78   }
79 })

b、css代码

 1 @import "/style/iconfont.wxss";
 2 @import "/app.wxss";
 3 
 4 .dialogBg {
 5   width: 100vw;
 6   height: 100vh;
 7   position: fixed;
 8   background: rgba(0, 0, 0, 0.3);
 9   z-index: 1;
10   left: 0;
11   top: 0;
12 }
13 
14 .dialogContent {
15   width: 100vw;
16   height: 60vh;
17   position: fixed;
18   bottom: 0;
19   background: white;
20   z-index: 2;
21   border-top-left-radius: 30rpx;
22   border-top-right-radius: 30rpx;
23   overflow: hidden;
24 }
25 
26 .dialogTitle {
27   height: 70rpx;
28   line-height: 70rpx;
29   text-align: center;
30 }
31 
32 .dialogClose {
33   position: absolute;
34   right: 20rpx;
35   color: #999;
36   line-height: 70rpx;
37   z-index: 2;
38 }
39 
40 .dialogSlot {
41   width: 100%;
42   /* height: 60vh - 70rpx; */
43   overflow-y: scroll;
44 }

c、wxml代码

 1 <view class="dialogBox" wx:if="{{show}}">
 2   <view class="dialogBg" catchtouchmove="return" bindtap="hidden"></view>
 3   <view class="dialogContent" animation="{{animationData}}" style="height:{{height}}">
 4     <view class="dialogTop">
 5       <text class="dialogClose sz szguanbi" bindtap="hidden"></text>
 6       <view wx:if="{{showTitle}}" class="dialogTitle">{{title}}</view>
 7     </view>
 8     <view class="dialogSlot" wx:if="{{showTitle}}" style="height:calc({{height}} - 70rpx)">
 9       <slot name="content"></slot>
10     </view>
11     <view class="dialogSlot" wx:if="{{!showTitle}}" style="height:{{height}}">
12       <slot name="content"></slot>
13     </view>
14   </view>
15 </view>

catchtouchmove：给背景加上此值，可方法弹层中滚动造成背景页面滚动

3、调用方页面相关代码

a、页面json文件引入

1 {
2   "usingComponents": {
3     "paramDialog": "/components/dialog/index",//引入弹层组件
4     "param": "/components/param/index"//此处把弹层内容也独立为一个组件
5   }
6 }

b、wxml相关代码

1 <!-- 弹层+弹层内容两个组件 -->
2 <dialog id="paramDialog" showTitle="{{true}}" title="产品参数" height="60vh">
3   <view slot="content">
4     <param m="{{m}}" bind:hideParamDialog="afterParam" data="{{data}}" id="paramPage"></param>
5   </view>
6 </dialog>

showTitle：是否显示标题

title：标题内容

height：弹层高度

param ：传参跟事件相

 c、js相关代码

 1 var app = getApp();
 2 var base = require(\'../../utils/base.js\');
 3 var that;
 4 Page({
 5   data: {   
 6     paramDialog: undefined,
 7     paramPage: undefined
 8   },
 9   onLoad: function(options) {
10     that = this;
11     this.setData({
12         paramDialog: that.selectComponent("#paramDialog"),
13         paramPage: that.selectComponent("#paramPage")
14     });
15   },
16   //关闭参数弹层
17   afterParam: function() {
18     this.data.paramDialog.hidden();
19   },
20   //打开参数弹层
21   openParamDailog: function() {
22     this.data.paramDialog.show();
23   }
24 })

base.js：自己用到的帮助方法库

4、弹层内容组件相关代码

a、wxml代码

//高度减去170rpx为了保持底部确认按钮，如果不需要可以直接是60vh
 1 <scroll-view scroll-y="true" catchtouchmove=\'{{true}}\' style="height:calc(60vh - 170rpx);">
 2 
 3   <view class="page ">
 4 
 5     //自定义内容
 6 
 7 </scroll-view>
 8 
 9 <view class="skuBottom clear">
10   <view class="skuBottomBox">
11     <view bindtap="SelectOk">确定</view>
12   </view>
13 </view>

b、css代码

 1 @import "/style/iconfont.wxss";
 2 @import "/app.wxss";
 3 
 4 scroll-view {
 5   background: #fff;
 6 }
 7 
 8 .page {
 9   padding: 20rpx;
10   padding-top: 0;
11 }
12 
13 .skuBottom {
14   width: 100%;
15   height: 100rpx;
16 }
17 
18 .skuBottomBox {
19   width: 100%;
20   height: 100rpx;
21   padding-top: 10rpx;
22   position: fixed;
23   bottom: 0;
24 }
25 
26 .skuBottomBox view {
27   background: #ff0812;
28   width: calc(100% - 40rpx);
29   height: 80rpx;
30   border-radius: 5em;
31   text-align: center;
32   line-height: 80rpx;
33   color: white;
34   font-weight: bold;
35   margin: 0 auto;
36 }
37 
38 .radio .szradio-yes {
39   color: #ff0812;
40 }
41 
42 .radio .szradio-no {
43   color: #999;
44 }

3、js代码

 1 equire(\'../../utils/base.js\');
 2 var that;
 3 Component({
 4   properties: {
 5     m: {
 6       type: Object,
 7       value: {}
 8     }
 9   },
10   data: {},
11   methods: {
12     SelectOk: function() {
13       this.triggerEvent("hideParamDialog");
14     }
15   }
16 })

仅此记录一下，并没有贴出所有代码，请见谅！