切换两个视图会导致崩溃

Question

XYZAppDelegate *appdelegate=[[UIApplication sharedApplication] delegate];
CSelectorViewController *cPrice=[[CSelectorViewController alloc] initWithNibName:@"CSelectorViewController" bundle:nil];
[cPrice.view setFrame:CGRectMake(0, 20, 320, 480)];
[appdelegate.window addSubview:cPrice.view];

[self applyAnimation];
[cPrice release];

我正在添加一个这样的视图，而不是使用navigationcontroller，因为我还必须在上下方切换两个视图。但是当我给出[cPrice release]时;应用程序崩溃。但是当我没有在代码中给它时...静态分析仪正在显示警告......这是正确的方法吗？

-(void)applyAnimation
{
    CATransition *animation = [CATransition animation];
    [animation setDuration:0.5];
    [animation setType:kCATransitionPush];
    [animation setSubtype:kCATransitionFromRight];
    [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
    XYZAppDelegate *appdelegate=[[UIApplication sharedApplication] delegate];
    [[appdelegate.window layer] addAnimation:animation forKey:@"slideLeft"];
}

Answer 1

您将cPrice的view添加到窗口作为子视图（将隐式保留视图），但您无法保留cPrice本身。你应该把它作为保留财产或其他一些财产。