Handling refresh in GridView when using a stream a source?












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I'm implementing a GridView in flutter du display some data. My architecture is based on BLoCs meaning I'm listening to streams for rendering.



To support PullToRefresh I'm currently implemention RefreshIndicator as a wrapper of the gridview. for onRefresh I've made a method where a value is added to the sink of the bloc. And now the part where I'm struggling :)
I'm currently returning Future in the onRefresh, but this just completes the refreshindicator icons right away, and not when I get data back from the stream.



So how can I best handle this flow using bloc and streams?



// update
I've added a Completer to my onRefresh and returning its Future. Then when I receive data on the stream I call Complete of the completer if it's done loading. Seems to work okay, but still open for feedback :)










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    0















    I'm implementing a GridView in flutter du display some data. My architecture is based on BLoCs meaning I'm listening to streams for rendering.



    To support PullToRefresh I'm currently implemention RefreshIndicator as a wrapper of the gridview. for onRefresh I've made a method where a value is added to the sink of the bloc. And now the part where I'm struggling :)
    I'm currently returning Future in the onRefresh, but this just completes the refreshindicator icons right away, and not when I get data back from the stream.



    So how can I best handle this flow using bloc and streams?



    // update
    I've added a Completer to my onRefresh and returning its Future. Then when I receive data on the stream I call Complete of the completer if it's done loading. Seems to work okay, but still open for feedback :)










    share|improve this question



























      0












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      0








      I'm implementing a GridView in flutter du display some data. My architecture is based on BLoCs meaning I'm listening to streams for rendering.



      To support PullToRefresh I'm currently implemention RefreshIndicator as a wrapper of the gridview. for onRefresh I've made a method where a value is added to the sink of the bloc. And now the part where I'm struggling :)
      I'm currently returning Future in the onRefresh, but this just completes the refreshindicator icons right away, and not when I get data back from the stream.



      So how can I best handle this flow using bloc and streams?



      // update
      I've added a Completer to my onRefresh and returning its Future. Then when I receive data on the stream I call Complete of the completer if it's done loading. Seems to work okay, but still open for feedback :)










      share|improve this question
















      I'm implementing a GridView in flutter du display some data. My architecture is based on BLoCs meaning I'm listening to streams for rendering.



      To support PullToRefresh I'm currently implemention RefreshIndicator as a wrapper of the gridview. for onRefresh I've made a method where a value is added to the sink of the bloc. And now the part where I'm struggling :)
      I'm currently returning Future in the onRefresh, but this just completes the refreshindicator icons right away, and not when I get data back from the stream.



      So how can I best handle this flow using bloc and streams?



      // update
      I've added a Completer to my onRefresh and returning its Future. Then when I receive data on the stream I call Complete of the completer if it's done loading. Seems to work okay, but still open for feedback :)







      flutter






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      share|improve this question








      edited Nov 26 '18 at 10:40







      Rasmus Christensen

















      asked Nov 26 '18 at 10:24









      Rasmus ChristensenRasmus Christensen

      5,15473261




      5,15473261
























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