所以,我上课了:
@interface Controller : NSObject
{
UILabel* fileDescription;
}
@property(strong, nonatomic) UILabel* fileDescription;
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我是否需要使用方法dealloc,其中属性fileDescription将等于nil?
例如:
-(void)dealloc
{
fileDescription = nil;
}
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如果没有,谁将解雇fileDescription使用的内存?
对于IOS 9及更低版本,此方法CFReadStreamCreateForHTTPRequest(...)已弃用.
Apple的文档建议使用NSURLSession而不是这个.但是我不明白我如何重新整合与NSURLSession的Live(我使用流)一起工作的功能.
我没有看到任何由NSURLSession加载"live"的可能性.
您通过服务器的特殊URL来加载实时数据的用途是什么?
我想使用自定义UIPresentationController.对于它,当我想要显示新场景时,我称之为代码
UIViewController *cv = [[...]];
cv.transitionManager=[[MyTransition alloc] init];
cv.transitioningDelegate=actionSheet.transitionManager;
cv.modalTransitionStyle = UIModalPresentationCustom;
[self presentViewController:cv animated:YES completion:^{
}];
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我的过渡经理有方法:
#pragma mark - UIViewControllerTransitioningDelegate
- (id <UIViewControllerAnimatedTransitioning>)animationControllerForPresentedController:(UIViewController *)presented presentingController:(UIViewController *)presenting sourceController:(UIViewController *)source{
return self;
}
- (id <UIViewControllerAnimatedTransitioning>)animationControllerForDismissedController:(UIViewController *)dismissed{
return self;
}
- (id <UIViewControllerInteractiveTransitioning>)interactionControllerForPresentation:(id <UIViewControllerAnimatedTransitioning>)animator{
return nil;
}
- (id <UIViewControllerInteractiveTransitioning>)interactionControllerForDismissal:(id <UIViewControllerAnimatedTransitioning>)animator{
return self;
}
- (UIPresentationController *)presentationControllerForPresentedViewController:(UIViewController *)presented presentingViewController:(UIViewController *)presenting sourceViewController:(UIViewController *)source {
MyPresentationController *presentationController = [[MyPresentationController alloc] initWithPresentedViewController:presented presentingViewController:presenting];
return presentationController;
}
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但方法presentationControllerForPresentedViewController不调用!
为什么?
我有个问题.我想在我的应用程序中使用一些与声音一起使用的功能.
我找到了示例SpeakHere,并在我的应用程序中包含此应用程序的主要部分功能.但我有3个错误:
没有用于调用'AudioSessionInitialize'的匹配函数

我该如何修复这个错误?
我添加到项目框架:coreAudio,AudioToolbox
我使用ARC.
ios ×4
iphone ×3
objective-c ×3
audioqueue ×1
cfnetwork ×1
cfnetworking ×1
core-audio ×1
ios8 ×1
swift ×1