帮助我理解给出的答案

Question

我在旋转设备时遇到了 UIModalTransitionStylePartialCurl 的问题，因为卷曲没有像我预期的那样旋转，我找到了下面的答案摘录，但我无法理解。

我不确定如何创建一个“rootviewcontroller”属性，如下所示

所以我正在寻找您的指导以进一步进行。我真的很长时间坚持这件事......

感谢您的帮助：-

---

我拥有的源代码

//
//  ModalViewExampleViewController.h
//  ModalViewExample
//
//  Created by Tim Neill on 11/09/10.
//

#import <UIKit/UIKit.h>

@interface ModalViewExampleViewController : UIViewController {
    UIButton *showDefaultButton, *showFlipButton, *showDissolveButton, *showCurlButton;
}

@property (nonatomic, retain) IBOutlet UIButton *showDefaultButton, *showFlipButton, *showDissolveButton, *showCurlButton;

- (IBAction)showDefault:(id)sender;
- (IBAction)showFlip:(id)sender;
- (IBAction)showDissolve:(id)sender;
- (IBAction)showCurl:(id)sender; 

@end 

//
//  ModalViewExampleViewController.m
//  ModalViewExample
//
//  Created by Tim Neill on 11/09/10.
//

#import "ModalViewExampleViewController.h"
#import "SampleViewController.h"

@implementation ModalViewExampleViewController

@synthesize showDefaultButton, showFlipButton, showDissolveButton, showCurlButton;

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
}

- (void)viewDidUnload {
    [super viewDidUnload];
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    return YES;
} 

- (IBAction)showDefault:(id)sender {
    SampleViewController *sampleView = [[[SampleViewController alloc] init] autorelease];
    [self presentModalViewController:sampleView animated:YES];
}

- (IBAction)showFlip:(id)sender {
    SampleViewController *sampleView = [[[SampleViewController alloc] init] autorelease];
    [sampleView setModalTransitionStyle:UIModalTransitionStyleFlipHorizontal];
    [self presentModalViewController:sampleView animated:YES];
}

- (IBAction)showDissolve:(id)sender {
    SampleViewController *sampleView = [[[SampleViewController alloc] init] autorelease];
    [sampleView setModalTransitionStyle:UIModalTransitionStyleCrossDissolve];
    [self presentModalViewController:sampleView animated:YES];
}

- (IBAction)showCurl:(id)sender {
    SampleViewController *sampleView = [[[SampleViewController alloc] init] autorelease];
    sampleView.rootViewController = self;

    [sampleView setModalTransitionStyle:UIModalTransitionStylePartialCurl];
    [self presentModalViewController:sampleView animated:YES];
} 

- (void)dealloc {
    [showDefaultButton release];
    [showFlipButton release];
    [showDissolveButton release];
    [showCurlButton release];
    [super dealloc];
}
@end

//
//  SampleViewController.h
//  ModalViewExample
//
//  Created by Tim Neill on 11/09/10.
//

#import <UIKit/UIKit.h>

@class RootViewController;

@interface SampleViewController : UIViewController {

    RootViewController *rootViewController;

    UIButton *dismissViewButton;
}

@property (nonatomic, retain) IBOutlet UIButton *dismissViewButton;

@property (nonatomic, retain) RootViewController *rootViewController;


- (IBAction)dismissView:(id)sender;

@end 

//
//  SampleViewController.m
//  ModalViewExample
//
//  Created by Tim Neill on 11/09/10.
//

#import "SampleViewController.h"


@implementation SampleViewController

@synthesize rootViewController;

@synthesize dismissViewButton;

- (IBAction)dismissView:(id)sender {
    [self dismissModalViewControllerAnimated:YES];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
}

- (void)viewDidUnload {
    [super viewDidUnload];
}


- (void)dealloc {
    [dismissViewButton release];
    [super dealloc];
}


- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
     [self dismissModalViewControllerAnimated:YES];
    return YES;
} 
@end

UIView Animation: PartialCurl ...bug during rotate?

我也有这个问题，有点放弃了。但是，我提到了我的 一个朋友的困境，他鼓励我研究孩子的 VC 逻辑，我想起了我用来在之间传递数据的一个方便的技巧 父/子视图控制器。

在您的反面视图控制器中，创建一个“rootViewController” 财产。在您的父视图控制器中，当您初始化 翻转视图控制器，您设置（其中“self”是 rootVC）：

flipsideController.rootViewController = self;

然后您将其用于您的另一面 VC shouldAutorotateToInterfaceOrientation 方法：

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { 返回接口方向 == self.rootViewController.interfaceOrientation;

}

维奥拉！翻转视图不再在部分下方旋转 卷起父视图！

Answer 1

@来自帖子：在您的翻转视图控制器中，创建一个“rootViewController”属性。

#import <UIKit/UIKit.h>

@class ModalViewExampleViewController;

@interface flipSideViewController : UIViewController {

    ModalViewExampleViewController *rootViewController;

}
@property (nonatomic, retain) ModalViewExampleViewController *rootViewController;

@end

在您的 FlipSideViewController 的实现文件中

#import "ModalViewExampleViewController.h"

@synthesize rootViewController;