Question

- (void)viewDidAppear:(BOOL)animated{
[super viewDidAppear:animated];

UIImageView *circleView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"face.png"]];
circleView.frame = CGRectMake(0, 0, 200, 200);

circleView.layer.cornerRadius = 100;
circleView.center = self.view.center;

[self.view addSubview:circleView];
circleView.transform = CGAffineTransformMakeScale(0, 0);

[UIView animateWithDuration:1 delay:0 usingSpringWithDamping:.5 initialSpringVelocity:1 options:0 animations:^{
    circleView.transform = CGAffineTransformMakeScale(1, 1);
} completion:nil];

如您所见，我在此动画方法中创建了一个名为circleView的视图。然后，我创建了一个touchesBegan方法，我想在触摸屏幕时再次浏览动画。我该怎么做？

Answer 1

正如Sujay所说，创建一个新方法并在该方法中放入以下行。从touchBegan方法调用该方法。

circleView.transform = CGAffineTransformMakeScale(0, 0);

[UIView animateWithDuration:1 delay:0 usingSpringWithDamping:.5 initialSpringVelocity:1 options:0 animations:^{
    circleView.transform = CGAffineTransformMakeScale(1, 1);
} completion:nil];

Answer 2

我做到了。我创建了2个属性，然后我制作了一个小的动画，然后是另一个让它变得更大的动画。

在Objective-C中，我该如何复活？

2 个答案: