我正在使用UIActivityViewController共享应用程序中的内容。
我想与不同的共享应用程序共享不同的内容。
类似于消息输出。image + text + URL
在Whatsapp中,我想分享下图text + URL
我该怎么做?为此,请参见下面的屏幕截图。
答案 0 :(得分:2)
我花了很多时间弄清楚了这一点,但这就是它的工作方式:
分两个步骤考虑这个问题:首先,我们需要告诉UIActivityViewController我们要共享哪些内容。其次,我们需要根据每个社交媒体(链接,图像或文本)返回内容。它由社交媒体应用程序决定可以处理哪些内容,并且只有在我们共享正确类型的内容时才会显示。
第一步,我们将尝试愚弄社交媒体应用程序,说我们要共享一个UIImage和一个NSObject。这将打开大多数社交媒体应用程序以进行共享。
第二步,我们将确定用户单击了哪个社交媒体应用,并为其返回适当的内容。
实施:
创建两个UIActivityItemSource,一个将返回UIImage,另一个将返回NSObject。
class SocialActivityItem: NSObject, UIActivityItemSource {
var img: UIImage?
var url: URL?
convenience init(img: UIImage, url: URL) {
self.init()
self.img = img
self.url = url
}
// This will be called BEFORE showing the user the apps to share (first step)
func activityViewControllerPlaceholderItem(_ activityViewController: UIActivityViewController) -> Any {
return img!
}
// This will be called AFTER the user has selected an app to share (second step)
func activityViewController(_ activityViewController: UIActivityViewController, itemForActivityType activityType: UIActivityType?) -> Any? {
//Instagram
if activityType?.rawValue == "com.burbn.instagram.shareextension" {
return img!
} else {
return url
}
}
}
和
class TextActivityItem: NSObject, UIActivityItemSource {
var textToShare: String?
convenience init(textToShare: String) {
self.init()
self.textToShare = textToShare
}
// This will be called BEFORE showing the user the apps to share (first step)
func activityViewControllerPlaceholderItem(_ activityViewController: UIActivityViewController) -> Any {
return NSObject()
}
// This will be called AFTER the user has selected an app to share (second step)
func activityViewController(_ activityViewController: UIActivityViewController, itemForActivityType activityType: UIActivityType?) -> Any? {
var text = ""
if activityType?.rawValue == "net.whatsapp.WhatsApp.ShareExtension" {
text = "Sharing on Whatsapp"
}
if activityType == UIActivityType.postToFacebook {
text = "Sharing on Facebook"
}
return text
}
}
然后,您只需要设置所有内容:
let url = URL(string: "www.google.com")!
let socialProvider = SocialActivityItem(img: img, url: url)
let textProvider = TextActivityItem(textToShare: "Sharing on social media!")
let activityViewController = UIActivityViewController(activityItems: [socialProvider, textProvider], applicationActivities: nil)