新加点击灰色按钮弹出提示~

pages/releaseModule/index.js

             setTags: true
         })
     },
+    notReleaseDemands(){
+        let { selectedTag, detailValue } = this.data;
+        if(!detailValue){
+            wx.showToast({
+                title: '需求详情不得为空~',
+                icon: 'none',
+                duration: 2000
+            })
+            return
+        }
+        if(selectedTag.length < 1){
+            wx.showToast({
+                title: '请至少选择需求一个类型~',
+                icon: 'none',
+                duration: 2000
+            })
+            return
+        }
+    },
     // 发布需求
     releaseDemands() {
         this.setData({
             type: selectedTag.join(','),
             businessCommunicationDemandId,
         };
+       
         $request.post('/businessCommunicationDemand/saveDemand.action', param).then(res => {
             this.setData({
                 saveLoading: false

pages/releaseModule/index.wxml

             <van-button block color="#5e73e5" round wx:if="{{ (!!detailValue && selectedTag.length > 0) }}" bind:click="releaseDemands" loading="{{ saveLoading }}">
                 {{  businessCommunicationDemandId ? '确认修改':'发布需求'}}
             </van-button>
-            <view wx:else class="btn-span">
+            <view wx:else class="btn-span" bindtap="notReleaseDemands">
                 {{  businessCommunicationDemandId ? '确认修改':'发布需求'}}
             </view>
         </view>