8000 child view can not be Container · Issue #3 · peng8350/flutter_pulltorefresh · GitHub
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child view can not be Container #3

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lucasjinreal opened this issue May 29, 2018 · 4 comments
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child view can not be Container #3

lucasjinreal opened this issue May 29, 2018 · 4 comments

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@lucasjinreal
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The child parameter can not be Container:

return new SmartRefresher(
        enablePullDown: true,
        enablePullUp: true,
        // refreshMode: this.refreshing,
        // loadMode: this.loading,
        onRefresh: _onRefresh,
        // headerBuilder: _buildHeader,
        // onOffsetChange: _onOffsetCallback,
        child: new Container(
            color: Colors.white,
            child: new Column(
              children: <Widget>[
                // headBannerSection,
                carouselBanner,
                _buildCategorySection(context),
                _buildListViewContent(),
              ],
            )));
  }

This gives an error.
@peng8350
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Yes,I have modified the latest version to be ScrollView type only, because listView can not cache item without doing so. You can wrap it in ListView too

@lucasjinreal
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@peng8350 Thanks for your reply, I am previously using a ListView contains all my sections, however there was an error:

[VERBOSE-2:dart_error.cc(16)] Unhandled exception:
NoSuchMethodError: The method 'onDragEnd' was called on null.
Receiver: null
Tried calling: onDragEnd(Instance of 'ScrollEndNotification')
#0      Object.noSuchMethod (dart:core/runtime/libobject_patch.dart:46:5)
#1      _SmartRefresherState._handleScrollEnd (package:pull_to_refresh/src/smart_refresher.dart:117:41)
#2      _SmartRefresherState._dispatchScrollEvent (package:pull_to_refresh/src/smart_refresher.dart:137:7)
#3      NotificationListener._dispatch (package:flutter/src/widgets/notification_listener.dart:125:27)
#4      Notification.visitAncestor (package:flutter/src/widgets/notification_listener.dart:45:20)
#5      _ScrollNotification&LayoutChangedNotification&ViewportNotificationMixin.visitAncestor (package:flutter/src/widgets/scroll_notification.dart:35:18)
#6      Element.visitAncestorElements (package:flutter/src/widgets/framework.dart:3295:39)
#7      Notification.dispatch (package:flutter/src/widgets/notification_listener.dart:59:12)

Here is my codes:

@override
  Widget build(BuildContext context) {
    return new SmartRefresher(
        enablePullDown: true,
        enablePullUp: true,
        // refreshMode: this.refreshing,
        // loadMode: this.loading,
        controller: _refreshController,
        onRefresh: _onRefresh,
        // headerBuilder: _buildHeader,
        // onOffsetChange: _onOffsetCallback,
        // child: new Container(
        //     color: Colors.white,
        //     child: new Column(
        //       children: <Widget>[
        //         // headBannerSection,
        //         carouselBanner,
        //         _buildCategorySection(context),
        //         _buildListViewContent(),
        //       ],
        //     )));
        child: new ListView(
          children: <Widget>[
            carouselBanner,
                _buildCategorySection(context),
                _buildListViewContent(),
          ],
        )
      );
  }

The comment are the previous code, any suggestions?

@peng8350
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The problem is that there are no default headerBuilder and footerBuilder inside, you only need to add the two attributes. I'll give it a default indicator in the next version

@lucasjinreal
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Thanks!!! Solved problem!!

peng8350 added a commit that referenced this issue Jun 19, 2018
@peng8350
Fix Sliver was added two times to cause two identical key problems (C…
70e29f0 
…ustomScrollView, #3).
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@peng8350 @lucasjinreal
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