UIPickerView显示和隐藏的动画

2015/04/10 32128

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- (void)ViewAnimation:(UIView*)view willHidden:(BOOL)hidden { 
       
    [UIView animateWithDuration:0.3 animations:^{ 
        if (hidden) { 
            view.frame = CGRectMake(0, [UIScreen mainScreen].bounds.size.height, [UIScreen mainScreen].bounds.size.width, view.bounds.size.height); 
        } else { 
            [view setHidden:hidden]; 
            view.frame = CGRectMake(0, [UIScreen mainScreen].bounds.size.height - view.bounds.size.height, [UIScreen mainScreen].bounds.size.width, view.bounds.size.height); 
        } 
    } completion:^(BOOL finished) { 
        [view setHidden:hidden]; 
    }]; 
}

UIPickerView显示和隐藏的动画.