cornerRadius上的CGAffineTransformMakeScale动画舍入了UIButton

2 回答

• 4

  尝试将动画部分放在控制器类中而不是在子类按钮类中 .

  //in customButton.h file
  
   #import <UIKit/UIKit.h>
  
   @interface customButton : UIButton
  
   - (id)initWithFrameOfCustomButton:(CGRect)frame;
   - (void)animate;//this method u need to add and call it from the controller
  @end
  
  
  
  
   //in the subclassed UIButtin class
   //in customButton.m file
  
  
   #import "customButton.h"
   #import <QuartzCore/QuartzCore.h>
  
   @implementation customButton
  
   - (id)initWithFrame:(CGRect)frame
   {
      self = [super initWithFrame:frame];
      if (self) {
       // Initialization code
  
      }
        return self;
   }
  
   - (id)initWithFrameOfCustomButton:(CGRect)frame
    {
      self = [super initWithFrame:frame];
      if(self)
      {
       //hear only set the frame only not incude animation part
       //this is the custom initiliser that initilises the custom button with the given frame and also make it to round
       self.frame = frame;
       self.backgroundColor = [UIColor greenColor];
       self.layer.cornerRadius = frame.size.width/2;
       self.layer.masksToBounds = YES;
      }
       return self;
    }
  
    //add the animation part
   - (void)animate //this method is called within the this class
   {
  
      [UIView animateWithDuration:0.1 delay:0.0 options:UIViewAnimationOptionCurveEaseInOut animations:^{
       self.layer.affineTransform = CGAffineTransformMakeScale(0.0f, 0.0f);
     //edit: comment below lines becz u already made it to round
     //  self.layer.cornerRadius = 0.0f;
     //  self.layer.masksToBounds = YES;
     //  self.clipsToBounds = YES;
  
       //        CATransform3D t = CATransform3DIdentity;
       //        t = CATransform3DMakeScale(0 , 0, 1.0f);
       //        cButton.layer.transform = t;
   } completion:^(BOOL finished) {
       [UIView animateWithDuration:0.1 delay:0.0 options:UIViewAnimationOptionCurveEaseInOut animations:^{
          self.layer.affineTransform = CGAffineTransformMakeScale(1.0f, 1.0f);
        //  edit comment below lines  
        //  self.layer.cornerRadius = self.frame.size.width/2;
        //  self.layer.masksToBounds = YES;
        //  self.clipsToBounds = YES;
          //            CATransform3D t = CATransform3DIdentity;
          //            t = CATransform3DMakeScale(1 , 1, 1.0f);
          //            cButton.layer.transform = t;
       } completion:nil];
     }];
  
    }
  
     //implement touch handling methods to call animation 
   - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
    {
       [self animate];
    }
  
    - (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event
    {
       [self animate];
    }
  
   - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
   {
      // [self animate]; 
   }
  
   - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
   {
      // [self animate];
   }
  

  在控制器类中包括如下的动画部分

  //in the view controller that u are using this custom button 
  
    #import "FirstViewController.h"
    #import "CustomCell.h"
    #import "customButton.h" 
    #import <QuartzCore/QuartzCore.h>
  
    @interface FirstViewController ()
    @end
  
    @implementation FirstViewController
  
    - (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.
        customButton *cButton = [[customButton alloc]initWithFrameOfCustomButton:CGRectMake(20, 30, 100, 100)]; //hear i am initilising the custom button
        cButton.tag = 100;//assigning tag to access during the animation
        [self.view addSubview:cButton];
       // [self makeAnimation];//i am animation rite after it loads the all views u can place this method call where ever u want 
      //edit: i am commenting the this line so animations of the button in this class won't call
     }
  
  //edit below method is added 
   - (void)viewDidAppear:(BOOL)animated 
   {
       customButton *cButton = (customButton *)[self.view viewWithTag:100];
       //edit->comment this line so that u never call the animation from view controller
      // [cButton animate];//animating the button the code in the subclassed method is called
   }
  
  
  
   - (void)makeAnimation 
   {
        customButton *cButton = (customButton *)[self.view viewWithTag:100];//get the custom button by using the tag 
  
        [UIView animateWithDuration:0.1 delay:0.0 options:UIViewAnimationOptionCurveEaseInOut animations:^{
      cButton.layer.affineTransform = CGAffineTransformMakeScale(0.0f, 0.0f);
     // cButton.layer.cornerRadius = 0.0f;
     // cButton.layer.masksToBounds = YES;
     // cButton.clipsToBounds = YES;
  
   //        CATransform3D t = CATransform3DIdentity;
   //        t = CATransform3DMakeScale(0 , 0, 1.0f);
   //        cButton.layer.transform = t;
    } completion:^(BOOL finished) {
          [UIView animateWithDuration:0.1 delay:0.0 options:UIViewAnimationOptionCurveEaseInOut animations:^{
          cButton.layer.affineTransform = CGAffineTransformMakeScale(1.0f, 1.0f);
       //   cButton.layer.cornerRadius = cButton.frame.size.width/2;
       //   cButton.layer.masksToBounds = YES;
       //   cButton.clipsToBounds = YES;
   //            CATransform3D t = CATransform3DIdentity;
   //            t = CATransform3DMakeScale(1 , 1, 1.0f);
   //            cButton.layer.transform = t;
          } completion:nil];
     }];
  
  
   }
  

  注意UIButton继承自：UIControl - > UIView - > UIResponder - > NSObject如果您想要使用UIControlers即响应者，请查看文档，然后您需要实现这些方法，您可以获得您想要的事件，

  在您的子类UIButton类中，通过注释触摸处理方法来实现它

  - (BOOL)beginTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event
      {
        return YES;
      }
  
    - (void)endTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event
      {
  
      }
  
   - (BOOL)continueTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event
     {
  
       return YES;
     }
  

  回复于 2024-04-30T02:55:51+08:00
• 1

  类似于Shankar BS的答案，但使用swift 3.使用反弹动画进行转换：

  myButton.layer.setAffineTransform(CGAffineTransform(scaleX: 0.0, y: 0.0))
  
              UIView.animate(withDuration: 0.7, delay: 1.0,
                              usingSpringWithDamping: 0.7, initialSpringVelocity: 7.0, options: [],
                              animations:  {
                              myButton.layer.setAffineTransform(CGAffineTransform(scaleX: 1.0, y: 1.0))
              },
                             completion: nil
              )
  

  回复于 2024-04-30T02:55:51+08:00