UIActivityViewController not showing body text in gmail

Question

I\'m using uiactivityviewcontroller for showing sharing option. Everything working except when user selects the Gmail sharing option. If user chooses email then it shows the

Answer 1

It's a bit tricky in Swift 3 and iOS 9+.

First, you need to add googlegmail to LSApplicationQueriesSchemes in Info.plist

Second, here's how my UIActivity subclass looks like:

It's a bit tricky in Swift 3 and iOS 9+.

First, you need to add googlegmail to LSApplicationQueriesSchemes in Info.plist

Second, here's how my UIActivity subclass looks like:

final class GmailNewEmailShareActivity: UIActivity {

    private let urlScheme = "googlegmail:"
    private var activityItems: [Any]? = nil

    override class var activityCategory: UIActivityCategory {
        return .share
    }

    override var activityType: UIActivityType? {
        return UIActivityType(rawValue: "googlemail")
    }

    override var activityTitle: String? {
        return "Gmail"
    }

    override var activityViewController: UIViewController? {
        return nil
    }

    override func canPerform(withActivityItems activityItems: [Any]) -> Bool {
        guard let url = URL(string: urlScheme) else {
            return false
        }
        return UIApplication.shared.canOpenURL(url)
    }

    override func prepare(withActivityItems activityItems: [Any]) {
        // At this point I store incoming activity items to use them later in `perform()`
        self.activityItems = activityItems
    }

    override var activityImage: UIImage? {
        // 60x60, 120x120 and 180x180
        return nil
    }

    override func perform() {
        guard let body = activityItems?.first as? String, let encodedBody = body.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed) else {
            activityDidFinish(false)
            return
        }
        let urlString = "\(urlScheme)///co?body=\(encodedBody)"
        guard let url = URL(string: urlString) else {
            activityDidFinish(false)
            return
        }
        UIApplication.shared.openURL(url)
        activityDidFinish(true)
    }

}