小编Moh*_*din的帖子

我可以在Swift with Extensions中实现它而不需要继承吗？我得到此错误扩展可能不包含存储的属性

extension UIButton
{
    @IBInspectable var borderWidth : CGFloat
        {
        didSet{
            layer.borderWidth = borderWidth
        }
    }

}

我制作了这段代码来创建 CAKeyframeAnimation 但结果根本没有弹跳

-(CAKeyframeAnimation *)keyframeBounceAnimationFrom:(NSValue *)from
                                                    to:(NSValue *)to
                                         forKeypath:(NSString *)keyPath
                                       withDuration:(CFTimeInterval)duration
{

    CAKeyframeAnimation * animation = [CAKeyframeAnimation animationWithKeyPath:keyPath];

    NSMutableArray * valuesArray = [NSMutableArray array];
    NSMutableArray * timeKeyArray = [NSMutableArray array];

    [self createBounceFrom:from to:to Values:valuesArray keyTimes:timeKeyArray];

    [animation setValues:valuesArray];
    [animation setKeyTimes:timeKeyArray];

    animation.duration = duration;
    return animation;
}

-(void)createBounceFrom:(NSValue *)from to:(NSValue *)to Values:(NSMutableArray *)values keyTimes:(NSMutableArray *)keyTimes
{

    CGPoint toPoint= [to CGPointValue];
    CGFloat offset = 60;
    CGFloat duration = 1.0f;
    NSUInteger numberOfOscillations= 4;


    [values addObject:from];
    [keyTimes addObject:[NSNumber numberWithFloat:0.0f]];
    //============
    //ideally bouncing will depend from …

我想发出与截屏中显示的 Postman 请求类似的 ALamofire 请求

我结束了 POST + Alamofire UPload + appendBodyPart(#stream: NSInputStream, length: UInt64, headers: [String: String])

将是答案但没有找到明确的例子如何实现它？

我确实检查了这个文档。

我有数千个字符串，我想正确地大写它们

默认字符串大小写可以更改“world war ii”->“World War II”

或者

“usa”->“Usa”还有其他类型的智能大写解决方案吗？