Question

我希望将AirDrop作为我应用程序中唯一的选项带出共享表。

在iOS 7中，我可以简单地将所有共享类型添加到excludedActivityTypes的{{1}}属性中UIActivityViewController，UIActivityTypeMessage，...）

但是现在在iOS 8中，通过应用扩展程序，用户可能会有额外的共享提供程序显示出来。有没有办法只显示AirDrop ？

UIActivityTypeMail

Answer 1

class AirDropOnlyActivityItemSource : NSObject, UIActivityItemSource {

    /// The item you want to send via AirDrop.
    let item: AnyObject

    init(item: AnyObject) {
        self.item = item
    }

    func activityViewControllerPlaceholderItem(activityViewController: UIActivityViewController) -> AnyObject {
        /// Use an empty URL as placeholder to let iOS Share Sheet show the AirDrop only.
        return NSURL(string: "")!
    }

    func activityViewController(activityViewController: UIActivityViewController, itemForActivityType activityType: String) -> AnyObject? {
        return item
    }   
}

Answer 2

Jonny's answer的Swift 4.2版本：

class AirDropOnlyActivityItemSource: NSObject, UIActivityItemSource {
    ///The item you want to send via AirDrop.
    let item: Any

    init(item: Any) {
        self.item = item
    }

    func activityViewControllerPlaceholderItem(_ activityViewController: UIActivityViewController) -> Any {
        //using NSURL here, since URL with an empty string would crash
        return NSURL(string: "")!
    }

    func activityViewController(_ activityViewController: UIActivityViewController, itemForActivityType activityType: UIActivity.ActivityType?) -> Any? {
        return item
    }
}

用法：

let itemSource = AirDropOnlyActivityItemSource(item: "test")

let activityVc = UIActivityViewController(activityItems: [itemSource], applicationActivities: nil)

Answer 3

目前无法做到这一点。您应该提交enhancement request with apple来解释为什么这对用户/开发人员有用。

仅通过AirDrop分享

3 个答案: