如何编写Objective-C函数

| 我使用以下代码切换视图

- (void)loading2menu{

[UIView beginAnimations:@\"Loading2Menu\" context:nil];
[UIView setAnimationDuration:1.25];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];

if (self.menuViewController.view.superview == nil)
{
    if (self.menuViewController == nil)
    {
        MenuViewController *menuController = 
        [[MenuViewController alloc] initWithNibName:@\"MenuView\" 
                                             bundle:nil];
        self.menuViewController = menuController;
        [menuController release];
    }

    [UIView setAnimationTransition:
     UIViewAnimationTransitionCurlUp
                           forView:self.view cache:YES];

    [loadingViewController viewWillAppear:YES];
    [menuViewController viewWillDisappear:YES];
    [loadingViewController.view removeFromSuperview];
    [self.view insertSubview:menuViewController.view atIndex:0];
    [menuViewController viewDidDisappear:YES];
    [loadingViewController viewDidAppear:YES];
}
else
{
    if (self.loadingViewController == nil)
    {
        LoadingViewController *loadingController = 
        [[LoadingViewController alloc] initWithNibName:@\"LoadingView\" 
                                                bundle:nil];
        self.loadingViewController = loadingController;
        [loadingController release];
    }

    [UIView setAnimationTransition:
     UIViewAnimationTransitionCurlDown
                           forView:self.view cache:YES];

    [menuViewController viewWillAppear:YES];
    [loadingViewController viewWillDisappear:YES];
    [menuViewController.view removeFromSuperview];
    [self.view insertSubview:loadingViewController.view atIndex:0];
    [loadingViewController viewDidDisappear:YES];
    [menuViewController viewDidAppear:YES];        
}

[UIView commitAnimations];

} 我认为这是太多的代码，并且如果我有更多的视图要切换，我必须编写更多这样的代码，这会浪费时间，而且这不是最佳的方法，所以我编写了一个执行此操作的函数事情

- (void)switchtheviews:(UIViewController*)coming over:(UIViewController*)going {    
[UIView beginAnimations:@\"frame\" context:nil];
[UIView setAnimationDuration:1];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];   
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:viewController.view cache:YES];
[coming viewWillAppear:YES];
[going viewWillDisappear:YES];
[going.view removeFromSuperview];
[viewController.view insertSubview:coming.view atIndex:0];
[going viewDidDisappear:YES];
[coming viewDidAppear:YES];
[UIView commitAnimations];

  }

那么，我该如何调用此功能？如果我用旧的，我可以用

[[MyAppsAppDelegate App].switchViewController loading2menu];

但是这个新函数，调用新函数应该写些什么呢？

已邀请:

2 个回复

徐百晴墓斜

您可以编写如下的C函数：

void switchtheviews(UIViewController *coming, UIViewController *going)
{
...
/* there is no self here */
...
}

并在代码中的任何地方使用它： switchtheviews(v1, v2); 我认为这不是您想要的。您可以编写一个私有方法来执行相同的操作，并将所有内容封装在您的类中。在.m文件上尝试类似的操作（这是私人资料，无需将其放在.h上）：

// MegaCoolViewController.m

@interface MegaCoolViewController ()

- (void)_switchtheviews:(UIViewController*)coming over:(UIViewController*)going;

@end


@implementation MegaCoolViewController

#pragma mark - Private

- (void)_switchtheviews:(UIViewController*)coming over:(UIViewController*)going
{
/* do your thing, use self freely */
}

@end

正如您在其他答案中可以看到的那样，有更简单的方法来切换视图。我只是在回答问题的语法部分。

扫窟

我认为您不需要为正在执行的操作使用动画。它应该像这样：

[objectName removeFromSuperview];
[superViewName addSubview:otherView];

要调用您的函数，它应该是：

[object switchTheViews:viewController over:otherViewController];

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如何编写Objective-C函数

2 个回复

发起人

uiviewcontroller

switch_statement

objective_c

问题状态

如何编写Objective-C函数

与内容相关的链接

2 个回复

发起人

uiviewcontroller

switch_statement

objective_c

问题状态