Merge branch 'develop' into feature/0312_update_min_required_iOS_version_to_10

Signed-off-by: NicoleYarroch <nicole@livio.io>

# Conflicts:
#	SmartDeviceLinkTests/SDLSystemCapabilityManagerSpec.m

1 files changed, 50 insertions, 0 deletions

diff --git a/Example Apps/Example Swift/SubscribeButtonManager.swift b/Example Apps/Example Swift/SubscribeButtonManager.swift
new file mode 100644
index 000000000..1bf128c1d
--- /dev/null
+++ b/Example Apps/Example Swift/SubscribeButtonManager.swift
@@ -0,0 +1,50 @@
+//
+//  SubscribeButtonManager.swift
+//  SmartDeviceLink
+//
+//  Created by Nicole on 6/19/20.
+//  Copyright © 2020 smartdevicelink. All rights reserved.
+//
+
+import Foundation
+import SmartDeviceLink
+import SmartDeviceLinkSwift
+
+class SubscribeButtonManager: NSObject {
+    private let sdlManager: SDLManager!
+    private let presetButtons: [SDLButtonName] = [.preset0, .preset1, .preset2, .preset3, .preset4, .preset5, .preset6, .preset7]
+
+    init(sdlManager: SDLManager) {
+        self.sdlManager = sdlManager
+    }
+
+    /// Subscribe to all available preset buttons. An alert will be shown when a preset button is short pressed or long pressed.
+    func subscribeToPresetButtons() {
+        guard (sdlManager.systemCapabilityManager.defaultMainWindowCapability?.numCustomPresetsAvailable?.intValue ?? 0) > 0 else {
+            SDLLog.w("The module does not support preset buttons")
+            return
+        }
+
+        presetButtons.forEach { buttonName in
+            sdlManager.screenManager.subscribeButton(buttonName, withObserver: self, selector: #selector(buttonPressEvent(buttonName:error:buttonPress:)))
+        }
+    }
+
+    @objc private func buttonPressEvent(buttonName: SDLButtonName, error: Error?, buttonPress: SDLOnButtonPress?) {
+        if let error = error {
+            SDLLog.e("There was an error subscribing to the preset button: \(error)")
+            return
+        }
+
+        guard let buttonPress = buttonPress else { return }
+
+        let buttonNameString = buttonName.rawValue.rawValue
+        switch buttonPress.buttonPressMode {
+        case .short:
+            AlertManager.sendAlert(textField1: "\(buttonNameString) short pressed", sdlManager: sdlManager)
+        case .long:
+            AlertManager.sendAlert(textField1: "\(buttonNameString) long pressed", sdlManager: sdlManager)
+        default: fatalError()
+        }
+    }
+}