Question

我正在实现一个imageView的动画。在这个动画中，我的气球图像从下到上，我想隐藏它，如果用户将触摸气球。但我的手势在动画期间不起作用。可以有人帮助我。提前谢谢。

img=[[UIImageView alloc]init];
     img.frame=CGRectMake(150, 450, 50,50);
     [self.view addSubview:img];
     img.image=[UIImage imageNamed:@"ballon3.png"];
     img.userInteractionEnabled=YES;

UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapFrom:)];
tapGestureRecognizer.numberOfTapsRequired=1;
tapGestureRecognizer.delegate=self;
[img addGestureRecognizer:tapGestureRecognizer];

 [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDelegate:self];
    [UIView setAnimationRepeatCount:30];
    [UIView setAnimationDuration:10];
    [UIView setAnimationCurve:UIViewAnimationCurveLinear];

CGAffineTransform scaleTrans =
    CGAffineTransformMakeScale(2, 2);

CGAffineTransform rotateTrans =
CGAffineTransformMakeRotation(angle * M_PI / 180);
img.transform = CGAffineTransformConcat(scaleTrans, rotateTrans);

img.center = CGPointMake(30,320);

这是手势的方法。但这种方法不是在调用。

-(void)handleTapFrom:(UIGestureRecognizer *)sender
{
  img.hidden = yes;  
}

Answer 1

你需要为动画使用块，所以喜欢它:(注意UIViewAnimationOptionAllowUserInteraction，这很重要）

[UIView animateWithDuration:10 delay:0 options:UIViewAnimationOptionAllowUserInteraction animations:^{
    // Your animation here
} completion:^(BOOL finished) {
    // Once completed do stuff here;
}];

我让你按照自己的意愿设置其他参数。

如果您需要在iOS 4.0之前工作，则需要在单独的线程中设置动画。 Check here for more info.

在ios中的动画期间，对imageview的手势无效

1 个答案: