仅在空投部分的底部更改UIActivityViewController背景颜色

Question

我要制作UIActivityViewController，如下图所示。我只需要自定义UIActivityViewController的底部（位于空投部分下方）。

这是我要搜索的图像https://ibb.co/0sbfQMY

的链接

这是我的代码，但是它完全改变了背景颜色。

let activityViewController = UIActivityViewController(activityItems: [image], applicationActivities: nil)
activityViewController.view.backgroundColor = UIColor.black.withAlphaComponent(0.8)

Answer 1

要在创建视图之前设置视图背景颜色。展示控制器后，您必须设置颜色。这样做：

/*
 * Sharing the app link
 */
private func shareApplication() {

    let activityViewController = UIActivityViewController.init(activityItems: ["Message"], applicationActivities: [])
    // This lines is for the popover you need to show in iPad
    activityViewController.popoverPresentationController?.sourceView = (self.view)

    // This line remove the arrow of the popover to show in iPad
    activityViewController.popoverPresentationController?.permittedArrowDirections = UIPopoverArrowDirection.any
    activityViewController.popoverPresentationController?.sourceRect = CGRect(x: 150, y: 150, width: 0, height: 0)


    // Anything you want to exclude
    activityViewController.excludedActivityTypes = [
        UIActivity.ActivityType.postToWeibo,
        UIActivity.ActivityType.print,
        UIActivity.ActivityType.assignToContact,
        UIActivity.ActivityType.saveToCameraRoll,
        UIActivity.ActivityType.addToReadingList,
        UIActivity.ActivityType.postToFlickr,
    ]

    self.present(activityViewController, animated: true) {

        //Here you need to set the color
        activityViewController.view.backgroundColor = .red
    }
}

输出