关闭时的 iOS presentViewController 动画

Question

我这里有点问题。当我在我的主视图中单击我的跟踪按钮时，我会看到该按钮将我带到一个显示跟踪信息的新 View 。我遇到的一个问题是，当它移动到新 View 时，任何标签都开始变小，然后动画变成正常大小。我不确定我是否已经正确解释了它，但是当我将它设置为不动画时， View 正在动画。我将在下面附上代码。

谢谢。

- (IBAction)ordertrack {
    UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
    UIViewController *vc = [sb instantiateViewControllerWithIdentifier:@"track1"];
    [self presentViewController:vc animated:NO completion:NULL];
}

更新:

我仍然没有找到任何有效的解决方案，我附上了下面的 gif 以显示您将看到后退按钮将调整大小的问题。

https://imgflip.com/gif/wwqq7

编辑:

为 Track1.m 添加代码

    //
    //  Track1.m
    //  uDropOff 3
    //
    //  Created by Curtis Boylan on 06/01/2016.
    //  Copyright © 2016 Curtis Boylan. All rights reserved.
    //

    #import "Track1.h"

    @interface Track1 ()

    @end

    @implementation Track1

    - (void)viewDidLoad {
        [super viewDidLoad];
        // Do any additional setup after loading the view.
    }

    - (void)didReceiveMemoryWarning {
        [super didReceiveMemoryWarning];
        // Dispose of any resources that can be recreated.
    }

    /*
    #pragma mark - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
        // Get the new view controller using [segue destinationViewController].
        // Pass the selected object to the new view controller.
    }
    */

    - (IBAction)back {
        UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
        UIViewController *vc = [sb instantiateViewControllerWithIdentifier:@"main"];
        [self presentViewController:vc animated:YES completion:NULL];

    }
   @end

Answer 1

@ChikabuZ 说的是实话。 (投票)

presentViewController:animated:completion: 上的animated 参数控制新的 View Controller 是滑到屏幕上还是只是出现。它不会影响新 View Controller 出现后所做的事情。

如果新的“track1” View Controller 在其设置代码中有动画，这些仍然会发生。你需要建立自己的机制来告诉它不要动画。 (也许将 dontAnimateInitialDisplay 属性添加到 track1 VC，并编写代码，以便如果 dontAnimateInitialDisplay 为真，则跳过动画。然后你d 像这样更改上面的代码:

- (IBAction)ordertrack {
    UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
    //Cast "vc" to the correct type so we have access to the 
    //dontAnimateInitialDisplay property
    Track1VC *vc = (Track1VC *)
      [sb instantiateViewControllerWithIdentifier:@"track1"];
    vc.dontAnimateInitialDisplay = TRUE;
    [self presentViewController:vc animated:NO completion:NULL];
}