[GitHub] heiby opened a new issue #1915: toast队列无法清空的问题

[GitBox <gi...@apache.org>]

heiby opened a new issue #1915: toast队列无法清空的问题
URL: https://github.com/apache/incubator-weex/issues/1915
 
 
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   ## Description
   
   <!-- The brief description of the potential bug. -->
   
   当weex页面销毁时，如果toast队列不为空，则队列里面的toast无法展示，并且不会被清理，有可能造成下次调用toast时，把旧的toast展示出来。
   
   ## Environment
   
   <!-- The environment to reproduce this bug, such as **Weex Version** and **Device Mode**. -->
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   版本：weex sdk 0.19.0
   
   ## Steps to Reproduce
   
   <!-- Please offer an example on the [online editor of Weex](http://dotwe.org/) to reproduce this bug. -->
   
   在页面中创建多个toast并在toast没展示完时，退出页面。
   
   ## reason
   
   产生此bug的关键代码如下：
   
   当weex页面销毁时，weakself是nil，所以这个递归调用不下去了，无法清除队列数据
   
   ![img](https://user-images.githubusercontent.com/4581299/50008362-e25f5d00-ffee-11e8-8473-f10dd2a233c9.png)
   
   
   
   

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