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fix for crash when toggling loading state immediately from initState #2

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fix for crash when toggling loading state immediately from initState #2

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13 changes: 6 additions & 7 deletions lib/declarative_refresh_indicator.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -131,22 +131,21 @@ class _DeclarativeRefreshIndicatorState
super.initState();
// If the indicator should be shown initially, show it.
WidgetsBinding.instance!.addPostFrameCallback((_) {
if (widget.refreshing) _show();
if (widget.refreshing && !_showing)
_show();
else if (!widget.refreshing && _showing) _hide();
});
}

@override
void didUpdateWidget(DeclarativeRefreshIndicator oldWidget) {
super.didUpdateWidget(oldWidget);
// If the [refreshing] field has not changed, do nothing.
if (oldWidget.refreshing == widget.refreshing) return;
// Otherwise, update the indicator accordingly.
super.didUpdateWidget(oldWidget);
if (widget.refreshing) {
// The indicator may have been shown already, if it was shown
// interactively. If it hasn't, show it now.
if (!_showing) _show();
} else {
_hide();
if (_showing) _hide();
}
}

Expand All @@ -162,7 +161,7 @@ class _DeclarativeRefreshIndicatorState
// The completer should not exist at this point.
// It's created here, and must complete before this callback can be
// called again.
assert(_completer == null);
assert(_completer == null, 'The completer should not exist');

// Create the completer and use it.
final completer = Completer<void>();
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