iOS ChildViewController详解

最新推荐文章于 2023-06-01 17:57:44 发布

原创最新推荐文章于 2023-06-01 17:57:44 发布 · 747 阅读

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本文介绍了一个父视图控制器如何管理并切换多个子视图控制器。通过加载不同的子视图控制器到同一个父视图中，实现了界面间的平滑过渡。文章详细展示了如何初始化各个子视图控制器，并使用UIView动画进行视图之间的切换。

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#import "ParentViewController.h"

#import "ChildOneViewController.h"

#import "ChildTwoViewController.h"

#import "ChildThreeViewController.h"

@interface ParentViewController () {

NSInteger _currentViewControllerIndex;

IBOutlet UIView *_contentChildView;

}

@end

@implementation ParentViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil

{

self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];

if (self) {

// Custom initialization

}

return self;

}

- (void)viewDidLoad

{

[super viewDidLoad];

// Do any additional setup after loading the view from its nib.

ChildOneViewController *childOneViewController = [[ChildOneViewController alloc] initWithNibName:@"ChildOneViewController" bundle:nil];

ChildTwoViewController *childTwoViewController = [[ChildTwoViewController alloc] initWithNibName:@"ChildTwoViewController" bundle:nil];

ChildThreeViewController *childThreeViewController = [[ChildThreeViewController alloc] initWithNibName:@"ChildThreeViewController" bundle:nil];

[self addChildViewController:childOneViewController];

[self addChildViewController:childTwoViewController];

[self addChildViewController:childThreeViewController];

[_contentChildView addSubview:childOneViewController.view];

_currentViewControllerIndex = 0;

}

- (void)didReceiveMemoryWarning

{

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

- (IBAction)buttonDidPress:(id)sender

{

// if (_currentViewControllerIndex == [sender tag]) {

// return;

// }

if (_currentViewControllerIndex == [sender tag]) {

return;

}

[self transitionFromViewController:[self.childViewControllers objectAtIndex:_currentViewControllerIndex]

toViewController:[self.childViewControllers objectAtIndex:[sender tag]]

duration:1

options:UIViewAnimationOptionTransitionFlipFromLeft

animations:^{}

completion:^(BOOL finished) {

if (finished) {

_currentViewControllerIndex = [sender tag];

}

}];

}

@end