FBUserSettingsViewController在关闭时崩溃 [英] FBUserSettingsViewController crashes on dismiss
问题描述
我正在尝试使用FBUserSettingsViewController,但是每次我尝试关闭它时,它都会崩溃.我使用以下代码来显示它:
I'm trying to use FBUserSettingsViewController but it's crashing every time I try to dismiss it. I use the following code to display it:
FBUserSettingsViewController *userSettings = [[FBUserSettingsViewController alloc] initWithNibName:nil bundle:nil];
userSettings.readPermissions = @[];
userSettings.publishPermissions = @[@"publish_actions"];
userSettings.defaultAudience = FBSessionDefaultAudienceEveryone;
userSettings.delegate = self;
[self.navigationController pushViewController:userSettings animated:YES];
它显示正常,但是一旦我按下"Back",我就会崩溃.崩溃是位于EXC_BAD_ACCESS,位于:
It displays fine, but as soon as I hit "Back" I get a crash. The crash is an EXC_BAD_ACCESS at:
#0 0x34ae85de in objc_msgSend ()
#1 0x00136916 in -[FBUserSettingsViewController dealloc] at /Users/jacl/src/release/ios-sdk/src/FBUserSettingsViewController.m:86
#2 0x389e29c8 in -[UINavigationController navigationTransitionView:didEndTransition:fromView:toView:] ()
#3 0x389e249e in -[UINavigationTransitionView _notifyDelegateTransitionDidStopWithContext:] ()
#4 0x38978a82 in -[UIViewAnimationState sendDelegateAnimationDidStop:finished:] ()
#5 0x389ed8ac in -[UIViewAnimationState animationDidStop:finished:] ()
#6 0x331a22e0 in CA::Layer::run_animation_callbacks(void*) ()
#7 0x30fe45da in _dispatch_client_callout ()
#8 0x30fe7e44 in _dispatch_main_queue_callback_4CF ()
#9 0x388c31b0 in __CFRunLoopRun ()
#10 0x3883623c in CFRunLoopRunSpecific ()
#11 0x388360c8 in CFRunLoopRunInMode ()
#12 0x30a3233a in GSEventRunModal ()
#13 0x389b7288 in UIApplicationMain ()
#14 0x00003424 in main at SNIP
如果有人可以告诉我我搞砸了,那太好了,但这似乎是Facebook SDK中的错误.
If someone could tell me I messed something up, that would be great, but this looks like a bug in the Facebook SDK.
推荐答案
我发现了问题. Facebook编码了他们的dealloc错误.
I found the issue. Facebook coded their dealloc's wrong.
在FBUserSettingsViewController和FBViewController中,存在dealloc,例如:
In FBUserSettingsViewController and FBViewController there are dealloc's such as:
- (void)dealloc {
[super dealloc];
[_profilePicture release];
[_connectedStateLabel release];
[_me release];
[_loginLogoutButton release];
[_permissions release];
[_backgroundImageView release];
[_bundle release];
}
这是错误的,[super dealloc]应该总是被最后调用.在他们尝试取消分配其成员之前,该对象已被拆除.我切换了顺序(最后使用dealloc),现在可以正常工作了.我将为此提交一个错误.
This is wrong, [super dealloc] is supposed to always supposed to be called last. The object is being torn down before they try deallocating their members. I switched the order (with dealloc last) and it's now working. I'll be filing a bug on this.
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