[GitHub] [incubator-weex] Zss1990 opened a new issue #2810: [iOS] input标签使用upriseOffset 属性设置值，当该值动态改变时候页面布局会出现问题

[GitBox]

Zss1990 opened a new issue #2810: [iOS] input标签使用upriseOffset 
属性设置值，当该值动态改变时候页面布局会出现问题
URL: https://github.com/apache/incubator-weex/issues/2810
 
 
   [iOS] 当有多个input标签时候 input被遮挡时候键盘弹起会有bug，通过使用upriseOffset 
属性进行设置弹起的高度值，但是当动态该设置该值时候页面布局会出现问题
   使用的iOS的weexSDK版本0.24.0
   测试demo如下：
   ```
   <template>
     <div class="wrapper">
       
       <list class="list" @scroll='handleScroll'>
         <cell>
           <textarea :rows='10' style='margin-bottom:40px;background-color:red' 
:upriseOffset='upriseOffset' @shouldBeginEditing='handleClick'></textarea>
         </cell>
         <cell>
           <textarea :rows='10' style='margin-bottom:40px;background-color:red' 
:upriseOffset='upriseOffset' @shouldBeginEditing='handleClick'></textarea>
         </cell>
         <cell>
           <textarea :rows='10' style='margin-bottom:40px;background-color:red' 
:upriseOffset='upriseOffset' @shouldBeginEditing='handleClick'></textarea>
         </cell>
         <cell>
           <textarea :rows='10' style='margin-bottom:40px;background-color:red' 
:upriseOffset='upriseOffset' @shouldBeginEditing='handleClick'></textarea>
         </cell>
         <cell>
           <textarea :rows='10' style='margin-bottom:40px;background-color:red' 
:upriseOffset='upriseOffset' @shouldBeginEditing='handleClick'></textarea>
         </cell>
         <cell>
           <textarea :rows='10' style='margin-bottom:40px;background-color:red' 
:upriseOffset='upriseOffset' @shouldBeginEditing='handleClick'></textarea>
         </cell>
         <cell>
           <textarea :rows='10' style='margin-bottom:40px;background-color:red' 
:upriseOffset='upriseOffset' @shouldBeginEditing='handleClick1'></textarea>
         </cell>
         
       </list>
     </div>
   </template>
   
   
   <style scoped>
     .list {
       position: absolute;
       top: 0;
       left: 0;
       right: 0;
       bottom: 0;
     }
     .wrapper {
       flex-direction: column;
   
     }
     
   </style>
   
   <script>
     module.exports = {
       data: function(){
         return {
           upriseOffset: 20
         }
       },
       methods:{
         handleClick(){
           this.upriseOffset=300
         },
   
         handleScroll({contentOffset}){
           // this.upriseOffset=contentOffset.y
         }
       }
     }
     </script>
   ```
   
其中`shouldBeginEditing`事件为自定义，触发添加input开始编辑时候；触发shouldBeginEditing事件是会设置shouldBeginEditing，这个时候布局会发生错误。
   

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