Markus Ruh created CB-12231:
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Summary: EXC_BAD_ACCESS in the screen-orientation plugin
Key: CB-12231
URL: https://issues.apache.org/jira/browse/CB-12231
Project: Apache Cordova
Issue Type: Bug
Components: Plugin Screen Orientation
Environment: Screen Orientation Plugin 1.4.2
iOS 10.1.1
Reporter: Markus Ruh
The screen-orientation plugin sometimes (seldom) throws a EXC_BAD_ACCESS and
crashes the app.
XCode points to the following line in YoikScreenOrientation.m when crashing:
vc.view.backgroundColor = [UIColor clearColor];
The reason for the bug is probably that the view should not be changed while it
is in a background thread, but the UIView is not thread safe (see Threading
Considerations in
https://developer.apple.com/reference/uikit/uiview?language=objc).
The simplest way to fix this is probably to call the following two lines from
the main thread (= move them into the dispatch_async(dispatch_get_main_queue()
block):
vc.view.backgroundColor = [UIColor clearColor];
vc.view.opaque = YES;
But as I have never seen the the background as described in the comments "as it
is briefly visible prior to closing" on my iPhone 6 even if I comment out these
lines, I don't know if there might be any negative side effects (but probably
not, as the view is presented later anyways)...
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