一个动画效果

一个动画效果

by 伍雪颖

#define SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width)

@interface ViewController ()
@end
@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    UIView *view = [[UIView alloc] initWithFrame:CGRectMake(100, 100, 100, 100)];
    view.backgroundColor = [UIColor redColor];
    [self.view addSubview:view];
   
    view.transform = CGAffineTransformMakeTranslation(SCREEN_WIDTH, 0);
    [UIView animateWithDuration:0.5 delay:0 usingSpringWithDamping:0.7 initialSpringVelocity:0 options:0 animations:^{
        view.transform = CGAffineTransformIdentity;
    } completion:NULL];

}