ios - Swift UIActivityViewController 图像共享不起作用

Question

我正在使用 UIActivityViewController 来分享图片。在 WhatsApp 最近更改为允许共享之后，我可以在共享选项中看到 WhatsApp。我正在分享图片和消息，我可以看到短信，但无法分享图片。相同的代码适用于 Viber、FB、twitter 等，不确定我缺少 WhatsApp 的什么。

func shareImage() {
    var messageStr:String  = "Check out my awesome photo!"
    var img: UIImage = currentPhoto!

    var shareItems:Array = [img, messageStr]

    let activityViewController:UIActivityViewController = UIActivityViewController(activityItems: shareItems, applicationActivities: nil)
    activityViewController.excludedActivityTypes = [UIActivityTypePrint, UIActivityTypePostToWeibo, UIActivityTypeCopyToPasteboard, UIActivityTypeAddToReadingList, UIActivityTypePostToVimeo]

    self.presentViewController(activityViewController, animated: true, completion: nil)

}

Answer 1

WhatsApp 似乎仅在数组包含图像而不是图像和文本的组合时才共享图像。

func shareImage() {
    //var messageStr:String  = "Check out my awesome iPicSafe photo!"
    var img: UIImage = currentPhoto!
    //var shareItems:Array = [img, messageStr]
    var shareItems:Array = [img]
    let activityViewController:UIActivityViewController = UIActivityViewController(activityItems: shareItems, applicationActivities: nil)
    activityViewController.excludedActivityTypes = [UIActivityTypePrint, UIActivityTypePostToWeibo, UIActivityTypeCopyToPasteboard, UIActivityTypeAddToReadingList, UIActivityTypePostToVimeo]
    self.presentViewController(activityViewController, animated: true, completion: nil)
}