Share image via whatsapp ios 8 - ios

Question

I am capturing an image in my app and what to share it using WHATSAPP by pressing share button like in RETRICA. But i didn't find any way to do it properly. i used UIDocumentInteraction but it didn't work. How can i share it using share extension of WHATSAPP in IOS8.
I got this exception while using UIDocumentInteractionController.
'UIDocumentInteractionController: invalid scheme (null). Only the file scheme is supported.'
this is my code
let image = UIImage(named: "nature")
let path = NSHomeDirectory().stringByAppendingPathComponent("Documents/whatsAppTmp.wai")
UIImageJPEGRepresentation(image!, 100.0)?.writeToFile(path, atomically: true)
let documentInteractionController = UIDocumentInteractionController(URL: NSURL(string: path)!)
documentInteractionController.UTI = "net.whatsapp.image"

Answer 1

Maybe this can help you:
let urlWhats = "whatsapp://app"
if let urlString = urlWhats.stringByAddingPercentEncodingWithAllowedCharacters(NSCharacterSet.URLQueryAllowedCharacterSet()) {
if let whatsappURL = NSURL(string: urlString) {
if UIApplication.sharedApplication().canOpenURL(whatsappURL) {
if let image = UIImage(named: "image") {
if let imageData = UIImageJPEGRepresentation(image, 1.0) {
let tempFile = NSURL(fileURLWithPath: NSHomeDirectory()).URLByAppendingPathComponent("Documents/whatsAppTmp.wai")
do {
try imageData.writeToURL(tempFile, options: .DataWritingAtomic)
self.documentInteractionController = UIDocumentInteractionController(URL: tempFile)
self.documentInteractionController.UTI = "net.whatsapp.image"
self.documentInteractionController.presentOpenInMenuFromRect(CGRectZero, inView: self.view, animated: true)
} catch {
print(error)
}
}
}
} else {
// Cannot open whatsapp
}
}
}
You can see this answer
Share image/text through WhatsApp in an iOS app

Answer 2

In Swift 3 use this code
#IBAction func whatsappShareWithImages(_ sender: AnyObject)
{
let urlWhats = "whatsapp://app"
if let urlString = urlWhats.addingPercentEncoding(withAllowedCharacters:CharacterSet.urlQueryAllowed) {
if let whatsappURL = URL(string: urlString) {
if UIApplication.shared.canOpenURL(whatsappURL as URL) {
if let image = UIImage(named: "whatsappIcon") {
if let imageData = UIImageJPEGRepresentation(image, 1.0) {
let tempFile = URL(fileURLWithPath: NSHomeDirectory()).appendingPathComponent("Documents/whatsAppTmp.wai")
do {
try imageData.write(to: tempFile, options: .atomic)
self.documentInteractionController = UIDocumentInteractionController(url: tempFile)
self.documentInteractionController.uti = "net.whatsapp.image"
self.documentInteractionController.presentOpenInMenu(from: CGRect.zero, in: self.view, animated: true)
} catch {
print(error)
}
}
}
} else {
// Cannot open whatsapp
}
}
}
}
Add this code in your app "plist"
<key>LSApplicationQueriesSchemes</key>
<array>
<string>whatsapp</string>
</array>
You can also refer to small app for reference : https://github.com/nithinbemitk/iOS-Whatsapp-Share