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Set the ivar to nil after release it in dealloc method. #38737

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Set the ivar to nil after release it in dealloc method. #38737

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7 changes: 7 additions & 0 deletions shell/platform/darwin/ios/framework/Source/FlutterEngine.mm
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Original file line number Diff line number Diff line change
Expand Up @@ -261,20 +261,27 @@ - (void)dealloc {
}];

[_labelPrefix release];
_labelPrefix = nil;
[_initialRoute release];
_initialRoute = nil;
[_pluginPublications release];
_pluginPublications = nil;
[_registrars release];
_registrars = nil;
_binaryMessenger.parent = nil;
_textureRegistry.parent = nil;
[_binaryMessenger release];
_binaryMessenger = nil;
[_textureRegistry release];
_textureRegistry = nil;
[_isolateId release];
_isolateId = nil;

NSNotificationCenter* center = [NSNotificationCenter defaultCenter];
if (_flutterViewControllerWillDeallocObserver) {
[center removeObserver:_flutterViewControllerWillDeallocObserver];
[_flutterViewControllerWillDeallocObserver release];
_flutterViewControllerWillDeallocObserver = nil;
}
[center removeObserver:self];

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