通过uiview动画来放大图片
UIImage *image=[UIImage imageNamed:@"1"]; UIImageView *imageView=[[UIImageView alloc]init]; imageView.image=image; imageView.frame=CGRectMake(120, 140, 80, 80); [self.view addSubview:imageView]; [UIView animateKeyframesWithDuration:2 delay:2 options:UIViewKeyframeAnimationOptionBeginFromCurrentState animations:^{ imageView.frame=CGRectMake(80, 100, 160, 160); } completion:nil];