objective-c - Objective C 按钮调整大小和延迟

Question

我想调整按钮所在位置的大小并延迟它，你能帮我吗？ (发件人=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，那么我应该使用 x,y,z,w 做什么。哦，我怎样才能延迟这个操作呢？

Answer 1

您使用 CAAnimation 来执行此操作有什么原因吗？

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];