Question 182525 in Flutter Question posted in
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Flutter – ListView wrapped by Listener

Listener(
        onPointerUp: (event) {
                   LogUtil.v('++++++onPointerUp++++');
},
        child: ListView.builder(
               itemCount:10,
                itemBuilder:(context, index) {
                   return GestureDetector(
                          onTap:() {
                              LogUtil.v('++++++GestureDetector++++');
                          },
                          child:Container(
                             height:200
                          )
                    )
                }
))

When I click listview item, print ‘++++++GestureDetector++++’ ,’++++++onPointerUp++++’ also printed. How can I make ‘++++++onPointerUp++++’ not print?

Tags:

2

Answers


  1. 0

    If you don’t need the log inside the Listener, why don’t you just remove the line:

    LogUtil.v('++++++onPointerUp++++');
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  2. 0

    Maybe something like this is a possibility

    bool tapped = false;

Listener(
        onPointerUp: (event) {
                 if (!tapped ) {
                   LogUtil.v('++++++onPointerUp++++');
                 } else {
                   tapped = false;
                 }
},
        child: ListView.builder(
               itemCount:10,
                itemBuilder:(context, index) {
                   return GestureDetector(
                          onTap:() {
                              tapped = true;
                              LogUtil.v('++++++GestureDetector++++');
                          },
                          child:Container(
                             height:200
                          )
                    )
                }
))
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