# SmartViewSDK iOS APIs

The iOS APIs provide methods and functionalities of the Smart View for iOS to users. With these APIs, we can communicate with Samsung Smart TV using an iOS device.

For more information, see the Samsung Developers

The swift API is used for mobile applications, to connect to SmartTV applications.

## Download library

- Download and install Smart View SDK for iOS manually.

- Install by CocoaPods

  - Open ‘Podfile’ and add following: `pod 'smart-view-sdk'`
  - Run command `$pod install` to install latest Smart View SDK for iOS.

## Jazzy Docs

API reference docs are online API GUIDE and included ‘docs’

## Introduction

To facilitate communication between an iOS mobile device and Samsung Smart TV, the Smart View provides API’s for discovery, launch and communicate processes.

> iOS APIs are provided as a dynamic library framework which implies that the applications using the framework can be submitted in the App Store only if their deployment target is iOS 8.0 or higher.

#### Steps:

##### 1. Discovery

    Discover compatible Samsung Smart TVs on your local network

##### 2. Launch

    Launch the installed app on TV

##### 3. Connect

    Connect and communicate with a TV application and other mobile devices

## Discovery

You can discover a compatible Samsung Smart TV on your network using the ServiceSearch class. The workflow is as follows :

- Start the Discovery Process.
- Listen for notifications indicating services add/removed or implementing a ServiceSearchDelegate.
- Stop the Discovery Process.

While discovering compatible TVs, you should display a list of discovered services to the user, allow them to select one and then communicate with the service selected. At any time you can get the list of the last discovered services.

Note: All Code examples are given in Swift programming language

        let serviceSearch = Service.search()
        init () {
        // The delegate is implemented as a weak reference
        serviceSearch.delegate = self
        serviceSearch.start()
        }

        // MARK: - ServiceSearchDelegate -

        func onServiceFound(service: Service) {
            // Update your UI by using the serviceDiscovery.services array
        }

        func onServiceLost(service: Service) {
            // Update your UI by using the serviceDiscovery.services array
        }

        // After the user connects to a device stop the search by calling
        serviceSearch.search( )
    Alternatively, you can subscribe for notifications (Please unsubscribe when you are done).

        var didFindServiceObserver: AnyObject? = nil
        var didRemoveServiceObserver: AnyObject? = nil

        func listenForNotifications()
        {
        didFindServiceObserver = NSNotificationCenter.defaultCenter().addObserverForName(MSDidFindService, object: serviceSearch, queue: NSOperationQueue.mainQueue( )) { (notification) -> Void in
            let serviceSearch = notification.object as? ServiceSearch
            let service = notification.userInfo["service"] as? Service
        }

        didRemoveServiceObserver = NSNotificationCenter.defaultCenter().addObserverForName(MSDidRemoveService, object: serviceSearch, queue: NSOperationQueue.mainQueue( )) { (notification) -> Void in
            let serviceSearch = notification.object as? ServiceSearch
            let service = notification.userInfo["service"] as? Service
        }
        }

If you want to use notifications, closures and the main queue for your notification you can use the equivalent
convenience method call.

        public func on(notificationName: String, performClosure: (NSNotification!) -> void) -> AnyObject
        public func off(observer: AnyObject)

On selecting a service from the list of available services, you can interact with the service to get additional
information about the device or you can either start, stop, install, and retrieve information about applications.
Both installed applications and cloud applications can be launched.

### BLE Device Discovery

SmartView framework supports discovery of Samsung devices via Bluetooth Low Energy in the surrounding area. BLE
discovery allows user to see the list of available TVs that user can connect with. BLE discovery does not support
retrieving the Service objects using Bluetooth currently.

The following example demonstrates how to launch BLE discovery and get the discovered devices.
Launch the search for BLE devices:

        let serviceSearch = Service.search()
        serviceSearch.startUsingBLE()

Implement corresponding delegate method to handle the discovery events:

        func onFoundOnlyBLE(NameOfTV: String)
        {
        print("Found BLE device: \(NameOfTV)")
        // Update your UI...
        }

## Launch

Once you have a selected device or “service” , you can now interact with both installed TV apps and Cloud apps.

Working With Installed TV Apps
Before you can work with an installed TV app, you must first know the “ID” of the TV application you want to work
with.If your TV app is still in development, you can use the folder name of your app as the id. Once the TV app
has been released into Samsung Apps, you must use the supplied app id.

There are four core functions for working with installed apps

1. Service.createApplication (id: AnyObject, channelURI: String, args: [String:AnyObject]?) : Get reference to
   your TV app by app ID
2. application.start (completionHandler: ((success: Bool, error: NSError?) -> Void)?) : Launch the TV app
3. application.stop (completionHandler: ((success: Bool, error: NSError?) -> Void)?) : Terminate the TV app
4. application.install (completionHandler: ((success: Bool, error: NSError?) -> Void)?) : Install the TV app.

        let uri: NSURL = app.getConfig().getWebAppUri();
        let channelID: String = "com.samsung.multiscreen.helloworld"

        let msApplication = service.createApplication(uri, channelURI: channelID, args: nil)!
        msApplication.connectionTimeout = 5.0

        // Launch the application without connecting to it
        msApplication.start() { (success, error) -> Void in
        if success  {
            print("App started")
        } else {
            print("App cannot start: \(error)")
        }
        }

## Connect

You need to be connected to TV to communicate with any application. If you connect an application without calling
start() method it will be launched automatically before connecting.

        let uri: NSURL = app.getConfig().getWebAppUri();
        let channelID: String = "com.samsung.multiscreen.helloworld"

        let msApplication = service.createApplication(uri, channelURI: channelID, args: nil)!
        msApplication.connectionTimeout = 5.0
        msApplication.connect(attrs) { (client, error) -> Void in
        if client != nil {
            print("App connected")
        } else {
            print("App cannot connect: \(error)")
        }
        }

### WoW (Wake on Wireless LAN)

#### Latest SmartViewSDK include Enhaned WOW feature

SDK 2.4.0 makes your app enable WOW function automatically without NO source code change.

1. If your app have been connected once,

   - SDK manage the TV device list for WOW feature
   - SDK handles below Basic UI scenario

2. Basic UI scenario

   - Turn the TV off (put to standby).
   - Appears marked as “TV_NAME(standby)” within 7 seconds.
   - Select the TV.
   - The TV power on
   - The TV WebApp(or DMP) should start loading on the TV.
   - The video should start playing on the TV.

#### Implement manually lower version of SDK 2.4.0

1.How to get MAC Address:

        service!.getDeviceInfo(5, completionHandler:
        {
                (deviceInfo, error) -> Void in

                    let device = deviceInfo!["device"]

                    let wifi = device!["wifiMac"]

        })

2.Wake up TV:

        Service.WakeOnWirelessLan(macAddr)

3.Wake up TV and connect:

        //Default timeout for connection is used Service.DEFAULT_WOW_TIMEOUT_VALUE:NSTimeInterval = 6

        Service.WakeOnWirelessAndConnect(macAddr, uri, completionHandler: {(service, error) -> Void in
                if(service != nil)
                {
                let url = NSURL(string: "http://dev-multiscreen-examples.s3-website-us-west-1.amazonaws.com/examples/helloworld/tv/")

                let app = service?.createApplication(url!, channelURI: "com.samsung.multiscreen.msf20", args: nil)

                app?.delegate = self

                app?.connect()
            }
        })

        //Connect using custom timeout
        //let timeout:NSTimeInterval = 12

          Service.WakeOnWirelessAndConnect(macAddr, uri, timeout, completionHandler: {(service, error) -> Void in
                     .....
             })

## License

Copyright © 2017 Samsung Electronics

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the Software), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

© 2017 . All rights reserved. (Last updated: 2017-06-08)

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