Sharing text as a string to another app

问题

I have a string that basically looks like this:

Scores:

Player One: Score
Player Two Score
Player Three: Score

I want to share this as text to apps such as WhatsApp, Facebook, iMessage, etc. What is the best way to do this? I have tried sharing as a .txt file, but it shares as a file instead of a regular message in WhatsApp.

回答1:

You could use a custom URL scheme. Apps like Facebook and WhatsApp generally have their own schemes that you can use to send data into those apps. See WhatsApp's info here: Link

Alternatively, you could use a UIActivityViewController. This also supports other data types, not just strings (see this SO question).

    NSString *textToShare = @"your text";
    UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:textToShare applicationActivities:nil];
    activityVC.excludedActivityTypes = @[UIActivityTypePrint, UIActivityTypeCopyToPasteboard, UIActivityTypeAssignToContact, UIActivityTypeSaveToCameraRoll]; //Exclude whichever aren't relevant
    [self presentViewController:activityVC animated:YES completion:nil];

Here's a nice blog post on this method: Link

回答2:

In swift you can do like this to share a string

var shareString = "Hello i am share string please share me!";

        var activityViewController: UIActivityViewController = UIActivityViewController(activityItems: [shareString], applicationActivities: nil);

        var currentViewController:UIViewController = UIApplication.sharedApplication().keyWindow!.rootViewController!

        currentViewController.presentViewController(activityViewController, animated: true, completion: nil);

回答3:

the UIActivityViewController takes to parameters,

1st activityItems , which is an array of type Any, you can pass whatever you want to share, if you want to share different datatypes , you can use an NSArray and cast it to an array of any like that let activityItems : NSArray = [object1, object2] as! [Any]

2nd application activities, which is the services that your application may provided, which will be mostly nil.

For Swift 3 -> 4.2, Use the below syntax :

let yourMessage = "this is your\n message that you want to share !!"

let activityItems = [yourMessage]

let activityController = UIActivityViewController(activityItems: activityItems , applicationActivities: nil)

self.present(activityController, animated: true, completion: nil)

回答4:

since iOS 6, Apple has provided the handy, but much-overlooked, UIActivityViewController class.

first of all Create an instance of UIActivityViewController and, for activityItems, pass in a message or a URL or both to your app’s data file. Depending on the activity the user selects from the activity menu, iOS uses the message you pass in to pre-populate its content.

For example, if the user chooses to share the book via Email, the message you passed in will pre-populate the body of the email. Since not all activities have such capability, such as AirDrop, iOS may discard the message.

finally present the UIActivityViewController to the user.

let shareString = "Hello This is a sharingText!"
let shareUrl = URL(string: "https://www.google.com")
let activityViewController: UIActivityViewController = UIActivityViewController(activityItems: [shareString, shareUrl], applicationActivities: nil)        
self.present(activityViewController, animated: true, completion: nil)

来源：https://stackoverflow.com/questions/25320520/sharing-text-as-a-string-to-another-app

标签

ios

objective-c

sharing