ios - 如何识别点击整个振荡 subview 以执行交互式动画

Question

在下面的代码中， subview (云)在给定的位置上振荡。 在振荡时点击该 subview ，它会移出边界到右侧，然后从左侧移入。 但是点击手势不适用于整个 subview ，它仅适用于振荡 subview 的右端。 每当点击云的整个 subview 时，我都希望滑出和滑入云工作。

下面分别是.h和.m文件的代码。

文件:OscillatingCloudsViewController.h

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

@interface OscillatingCloudsViewController : UIViewController
{
    IBOutlet UIView *movingCloud1;
    UIImage *cldImg;
}

- (IBAction)animateCloud;
- (IBAction)animateCloudBegin;
@end

---

文件:OscillatingCloudsViewController.m

#import "OscillatingCloudsViewController.h"

@implementation OscillatingCloudsViewController

- (void) viewWillAppear:(BOOL)animated
{
    UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapGestureAnimateCloud)];
    tapGesture.numberOfTapsRequired = 1;
    tapGesture.numberOfTouchesRequired = 1;
    tapGesture.cancelsTouchesInView = YES;
    [movingCloud1 addGestureRecognizer:tapGesture];
    movingCloud1.userInteractionEnabled = YES;
    [super viewWillAppear:
     animated];

}

- (void)viewDidLoad
{
    [super viewDidLoad];
    [self animateCloud]; 
}

- (IBAction) animateCloud
{
    cldImg = [UIImage imageNamed:@"cloud1.png"];
    movingCloud1=[[UIView alloc]initWithFrame:CGRectMake(50, 50, cldImg.size.width, cldImg.size.height)];
    [movingCloud1 setBackgroundColor:[UIColor colorWithPatternImage:cldImg]];
    [self.view addSubview:movingCloud1];
    movingCloud1.userInteractionEnabled = YES;

    [self viewWillAppear:YES];

    [UIView beginAnimations:nil context:NULL];

    [UIView setAnimationDuration:5];
    [UIView setAnimationRepeatCount:HUGE_VALF];
    [UIView setAnimationRepeatAutoreverses:YES];

    CGPoint pos = movingCloud1.center;
    pos.x = 220.0f;
    movingCloud1.center = pos;

    [UIView commitAnimations];
}

- (void) animateCloudHidden
{
    [movingCloud1 setHidden:YES];
}
- (IBAction)animateCloudBegin
{

        movingCloud1.frame = CGRectMake(-100, 50, cldImg.size.width, cldImg.size.height);
        [UIView beginAnimations:nil context:NULL];

        [UIView setAnimationDuration:1];
        [UIView setAnimationRepeatCount:1];
        [UIView setAnimationRepeatAutoreverses:NO];

        CGPoint pos = movingCloud1.center;
        pos.x = cldImg.size.width;
        movingCloud1.center = pos;

        [UIView commitAnimations];

}

- (IBAction) tapGestureAnimateCloud
{  
    [UIView beginAnimations:nil context:NULL];

    [UIView setAnimationDuration:2];
    [UIView setAnimationRepeatCount:1];
    [UIView setAnimationRepeatAutoreverses:NO];
    movingCloud1.center = CGPointMake(1100.0f, 81.5f);

    [UIView commitAnimations];

    [self performSelector:@selector(animateCloudBegin) withObject:nil afterDelay:2.0f];
    [self performSelector:@selector(animateCloudHidden) withObject:nil afterDelay:3.0f];
    [self performSelector:@selector(animateCloud) withObject:nil afterDelay:3.0f];
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
}

@end

Answer 1

我已经理解你的问题了。在 viewwillApper 中，您正在评估 Gesture，并在 animateCloud 方法中分配您的 movingCloud1 UIView。

要实现这一点，您需要执行 bello 步骤。

• 在 ViewdidLoad 中，您需要分配 movingCloud1 View 并将其添加到您的 self.view 中。

• 将 Gesture 添加到 movingCloud1 View 后。

• 您的 tapGesture 现在可以使用了。因此，在您的 tapsture 方法中，您只需要为 movingCloud1 View 设置动画