Question

我希望在它所在的位置重新调整按钮大小并延迟它，你能帮助我吗？（发件人=的UIButton）

我的功能：

-(IBAction)Animate: (id) sender
{

[sender setBackgroundImage:[UIImage imageNamed:@"Text Bg large.png"] forState:UIControlStateNormal];
CABasicAnimation *scale;
scale = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
scale.fromValue = [NSNumber numberWithFloat:1];
scale.toValue = [NSNumber numberWithFloat:1.3];
scale.duration = 1;
scale.removedOnCompletion = NO;

scale.repeatCount = 1;
[sender addAnimation:scale forKey:@""];
[sender setFrame:(CGRectMake(x, y, z, w))];


}

如果我希望该按钮保持在同一位置，并且在不手动输入值的情况下增大1.3倍，我会对x，y，z，w使用什么？哦，我怎么能延迟这个操作呢？

Answer 1

您是否有任何理由使用CAAnimation来执行此操作？

怎么样：

CGRect newFrame = CGRectInset(sender.frame, CGRectGetWidth(sender.frame) * -0.15, CGRectGetHeight(sender.frame) * -0.15);

[UIView animateWithDuration: 1.0
                      delay: 0.5
                    options: UIViewAnimationOptionCurveLinear
                 animations:^{
                     [sender setFrame: newFrame];
                 }
                 completion: nil];

或

[UIView animateWithDuration: 1.0
                      delay: 0.5
                    options: UIViewAnimationOptionCurveLinear
                 animations:^{
                     [sender setTransform: CGAffineTransformMakeScale(1.3, 1.3)];
                 }
                 completion: nil];

Answer 2

这样做：

-(IBAction)Animate:(id) sender
{
  UIButton *btnAnimate = (UIButton *)sender;
  btnAnimate.transform = CGAffineTransformIdentity;
  [UIView animateWithDuration:0.4 delay:0 options:UIViewAnimationOptionCurveEaseOut animations:^{
  btnAnimate.transform = CGAffineTransformMakeScale(1.3f, 1.3f);

  } completion:^(BOOL finished){

    [btnAnimate setFrame:(CGRectMake(x, y, z, w))];

  }];
}

Objective C按钮调整大小并延迟

2 个答案: