Question

我需要从我的应用程序发送带有文本的图像，我知道如何仅发送图像或仅发送文本，但我不知道如何将它们组合在一起。

只是一张图片：

    let image = UIImage(named: "Image") // replace that with your UIImage

    let filename = "myimage.wai"
    let documentsPath = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, false)[0] as! NSString
    let destinationPath = documentsPath.stringByAppendingString("/" + filename).stringByExpandingTildeInPath
    UIImagePNGRepresentation(image).writeToFile(destinationPath, atomically: false)
    let fileUrl = NSURL(fileURLWithPath: destinationPath)! as NSURL

    documentController = UIDocumentInteractionController(URL: fileUrl)
    documentController.delegate = self
    documentController.UTI = "net.whatsapp.image"
    documentController.presentOpenInMenuFromRect(CGRectZero, inView: self.view, animated: false)

只是一个文字：

    var whatsappURL = NSURL(string: "whatsapp://send?text=hello,%20world")

    if UIApplication.sharedApplication().canOpenURL(whatsappURL!) {
        UIApplication.sharedApplication().openURL(whatsappURL!)
    }

如何发送带有文字的图像？

编辑＃1

我找到了一个与whatsapp共享文本图像的代码，但是在java中，你可以将它翻译成swift吗？

Intent whatsappIntent = new Intent(android.content.Intent.ACTION_SEND);
whatsappIntent.setType("image/*");
whatsappIntent.putExtra(Intent.EXTRA_TEXT, "Hello World");
whatsappIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://" + file)); //add image path
startActivity(Intent.createChooser(share, "Share image using"));
try {
    activity.startActivity(whatsappIntent);
} catch (android.content.ActivityNotFoundException ex) {
    Toast.makeText(activity, "Whatsapp have not been installed.", Toast.LENGTH_SHORT).show();
}

Answer 1

您可以在WhatsApp上发布图片或文字。但是你不能一次发布两个，因为whatsapp没有提供任何你可以添加标题的API和带文字的图像。

现在有一个api可用于与WhatsApp进行交互：

<强> http://www.whatsapp.com/faq/en/iphone/23559013

另见以下有用的答案：

您可以使用自2014年8月4日起在此问题的第二个答案中提及的UIDocumentInteractionController： Share image/text through WhatsApp in an iOS app

希望这会有所帮助。

Answer 2

swift 3的共享图像代码版本：

let image = myUIImageVariable
        let filename = "myimage.wai"
        let documentsPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, false)[0] as NSString
        var destinationPath = documentsPath.appending("/" + filename) as NSString
         destinationPath = destinationPath.expandingTildeInPath as NSString

        let fileUrl = NSURL(fileURLWithPath: destinationPath as String) as NSURL
        do{
            try UIImagePNGRepresentation(image!)?.write(to: fileUrl as URL, options: Data.WritingOptions.atomic)
        }
        catch {}
        let documentController = UIDocumentInteractionController(url: fileUrl as URL)
        documentController.delegate = self
        documentController.uti = "net.whatsapp.image"
        documentController.presentOpenInMenu(from: CGRect.zero, in: self.view, animated: false)

即使只是共享图片，似乎仍然无效，但可能会节省某人的时间

使用Whatsapp发送图像和文本

2 个答案: