ios - 如何在 objective-c 中为此代码创建函数

Question

我已经为 UIView 编写了过渡动画代码，但是这段代码在多个屏幕中使用，所以我一直在编写相同的代码，但我想创建类或函数，以便我可以轻松地调用它在任何需要的地方，但我是 iOS 新手，所以请帮助我如何创建函数并在 UIView..

中调用

CATransition *trans = [CATransition animation];
trans.duration = 0.5;
trans.type = kCATransitionPush;
trans.subtype = kCATransitionFromTop;
[trans setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];

[self.container_view.layer trans forKey:nil];

提前致谢

Answer 1

像这样创建 AppFunction 类:

<强>1。头文件

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>

@interface AppFunctions : NSObject
    + (void) animateView:(UIView *)view;
@end

<强>2。实现文件

#import "AppFunctions.h"

@implementation AppFunctions
+ (void) animateView:(UIView *) view
{
  CATransition *trans = [CATransition animation];
  trans.duration = 0.5;
  trans.type = kCATransitionPush;
  trans.subtype = kCATransitionFromTop;
  [trans setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];

  [view.layer addAnimation:trans forKey:nil];
}
@end

现在通过导入 #import "AppFunctions.h"

在你想要的地方调用 Like this

[AppFunctions animateView:self.view];