![]() PubNub will, in most cases, deliver your message to its intended recipients in fewer than 100 ms regardless of their location. In this example, you subscribe to a channel named awesomeChannel.Ī message can be any type of JSON-serializable data (such as objects, arrays, integers, strings) that is smaller than 32 KiB. When you publish a message to a channel, PubNub delivers that message to everyone who is subscribed to that channel. When you want to receive messages sent to a particular channel, you subscribe to it. Messages contain the data you want to transmit to one or more recipients.Channels are transient paths over which your data is transmitted.PubNub uses the Publish/Subscribe model for real-time communication. #Swift share custom text social media codeThe following code also subscribes to the channel awesomeChannel and prints out the message when it is received.įor more information, refer to the Listeners section of the SDK documentation. It is best to define the message before you introduce the listeners and send the subscribe call, so make sure to place the relevant code in the appropriate places.Ĭopy the code below to configure your app such that when it successfully connects to a channel, it calls the publish() function. To subscribe, you send a subscribe() call. In this app, publishing a message is triggered when the status listener you created in the previous step successfully connects to a channel. When you publish a message to a channel, PubNub delivers that message to everyone subscribed to that channel. To receive messages sent to a particular channel, you subscribe to it. You can implement custom app logic to respond to each type of message or event received. Listeners help your app react to events and messages. Import the module named PubNub inside your AppDelegate: Use the Up to Next Major Version rule spanning from 3.0.0 < 4.0.0, and click Next. ![]() Search for PubNub and select the swift package owned by pubnub, and click Next. ![]() Navigate to File > Swift Packages > Add Package Dependency. ![]() You will use the workspace you generated with Swift Package Manager in this procedure.Ĭreate a new Xcode project as a Single View App, using a Storyboard user interface. ![]() Select amework nested inside the top-most PubNub.xcodeproj/Products/ directory.įor more information, refer to Apple's guide on Adding Package Dependencies to Your App. Select the General tab in the top middle of the window, and then click + inside the EMBEDDED BINARIES section. Select your application project in the Project Navigator, and then select your application's Target under the TARGETS panel. Select your applications's project in the Project Navigator (blue project icon), navigate to the target configuration window, and select the application target under the "Targets" heading in the sidebar. This nests a reference to the framework project in the app project. I'm writing a function that when a button is clicked makes a screenshot, and then lets you share this photo on Twitter, Instagram and Facebook.In Finder, locate the PubNub.xcodeproj Xcode project inside the submodule directory, and drag it onto your app's project in the Project Navigator. ![]()
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