MotionGraphs: Version 2.0, 2017-02-02

Updated to Swift

This sample demonstrates how to receive updates from sensors using Core Motion. It displays graphs of accelerometer, gyroscope and device motion data.

Signed-off-by: Liu Lantao <liulantao@gmail.com>

MotionGraphs/LICENSE.txt

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+Sample code project: MotionGraphs
+Version: 2.0
+
+IMPORTANT:  This Apple software is supplied to you by Apple
+Inc. ("Apple") in consideration of your agreement to the following
+terms, and your use, installation, modification or redistribution of
+this Apple software constitutes acceptance of these terms.  If you do
+not agree with these terms, please do not use, install, modify or
+redistribute this Apple software.
+
+In consideration of your agreement to abide by the following terms, and
+subject to these terms, Apple grants you a personal, non-exclusive
+license, under Apple's copyrights in this original Apple software (the
+"Apple Software"), to use, reproduce, modify and redistribute the Apple
+Software, with or without modifications, in source and/or binary forms;
+provided that if you redistribute the Apple Software in its entirety and
+without modifications, you must retain this notice and the following
+text and disclaimers in all such redistributions of the Apple Software.
+Neither the name, trademarks, service marks or logos of Apple Inc. may
+be used to endorse or promote products derived from the Apple Software
+without specific prior written permission from Apple.  Except as
+expressly stated in this notice, no other rights or licenses, express or
+implied, are granted by Apple herein, including but not limited to any
+patent rights that may be infringed by your derivative works or by other
+works in which the Apple Software may be incorporated.
+
+The Apple Software is provided by Apple on an "AS IS" basis.  APPLE
+MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
+THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
+OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
+
+IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
+OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
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+AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
+STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+Copyright (C) 2016 Apple Inc. All Rights Reserved.

MotionGraphs/MotionGraphs.xcodeproj/xcuserdata/petecallaway.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist

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+<?xml version="1.0" encoding="UTF-8"?>
+<Bucket
+   type = "1"
+   version = "2.0">
+</Bucket>

MotionGraphs/MotionGraphs.xcodeproj/xcuserdata/petecallaway.xcuserdatad/xcschemes/MotionGraphs.xcscheme

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+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0820"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "B579FE3E1DDD1D2700A8C0C7"
+               BuildableName = "MotionGraphs.app"
+               BlueprintName = "MotionGraphs"
+               ReferencedContainer = "container:MotionGraphs.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "B579FE3E1DDD1D2700A8C0C7"
+            BuildableName = "MotionGraphs.app"
+            BlueprintName = "MotionGraphs"
+            ReferencedContainer = "container:MotionGraphs.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "B579FE3E1DDD1D2700A8C0C7"
+            BuildableName = "MotionGraphs.app"
+            BlueprintName = "MotionGraphs"
+            ReferencedContainer = "container:MotionGraphs.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "B579FE3E1DDD1D2700A8C0C7"
+            BuildableName = "MotionGraphs.app"
+            BlueprintName = "MotionGraphs"
+            ReferencedContainer = "container:MotionGraphs.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

MotionGraphs/MotionGraphs.xcodeproj/xcuserdata/petecallaway.xcuserdatad/xcschemes/xcschememanagement.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>MotionGraphs.xcscheme</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+	<key>SuppressBuildableAutocreation</key>
+	<dict>
+		<key>B579FE3E1DDD1D2700A8C0C7</key>
+		<dict>
+			<key>primary</key>
+			<true/>
+		</dict>
+	</dict>
+</dict>
+</plist>

MotionGraphs/MotionGraphs/AccelerometerViewController.swift

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+/*
+ Copyright (C) 2016 Apple Inc. All Rights Reserved.
+ See LICENSE.txt for this sample’s licensing information
+ 
+ Abstract:
+ A view controller to display output from the accelerometer.
+ */
+
+import UIKit
+import CoreMotion
+import simd
+
+class AccelerometerViewController: UIViewController, MotionGraphContainer {
+
+    // MARK: Properties
+
+    @IBOutlet weak var graphView: GraphView!
+
+    // MARK: MotionGraphContainer properties
+
+    var motionManager: CMMotionManager?
+
+    @IBOutlet weak var updateIntervalLabel: UILabel!
+
+    @IBOutlet weak var updateIntervalSlider: UISlider!
+
+    let updateIntervalFormatter = MeasurementFormatter()
+
+    @IBOutlet var valueLabels: [UILabel]!
+
+    // MARK: UIViewController overrides
+
+    override func viewWillAppear(_ animated: Bool) {
+        super.viewWillAppear(animated)
+
+        startUpdates()
+    }
+
+    override func viewDidDisappear(_ animated: Bool) {
+        super.viewDidDisappear(animated)
+
+        stopUpdates()
+    }
+
+    // MARK: Interface Builder actions
+
+    @IBAction func intervalSliderChanged(_ sender: UISlider) {
+        startUpdates()
+    }
+
+    // MARK: MotionGraphContainer implementation
+
+    func startUpdates() {
+        guard let motionManager = motionManager, motionManager.isAccelerometerAvailable else { return }
+
+        updateIntervalLabel.text = formattedUpdateInterval
+
+        motionManager.accelerometerUpdateInterval = TimeInterval(updateIntervalSlider.value)
+        motionManager.showsDeviceMovementDisplay = true
+
+        motionManager.startAccelerometerUpdates(to: .main) { accelerometerData, error in
+            guard let accelerometerData = accelerometerData else { return }
+
+            let acceleration: double3 = [accelerometerData.acceleration.x, accelerometerData.acceleration.y, accelerometerData.acceleration.z]
+            self.graphView.add(acceleration)
+            self.setValueLabels(xyz: acceleration)
+        }
+    }
+
+    func stopUpdates() {
+        guard let motionManager = motionManager, motionManager.isAccelerometerAvailable else { return }
+
+        motionManager.stopAccelerometerUpdates()
+    }
+}

MotionGraphs/MotionGraphs/AppDelegate.swift

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+/*
+ Copyright (C) 2016 Apple Inc. All Rights Reserved.
+ See LICENSE.txt for this sample’s licensing information
+ 
+ Abstract:
+ The application delegate.
+ */
+
+import UIKit
+import CoreMotion
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+    var window: UIWindow?
+
+    let motionManager = CMMotionManager()
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
+        // Enumerate through the view controller hierarchy, setting the `motionManager`
+        // property on those that conform to the `MotionGraphContainer` protocol.
+        window?.rootViewController?.enumerateHierarchy { viewController in
+            guard var container = viewController as? MotionGraphContainer else { return }
+            container.motionManager = motionManager
+        }
+
+        return true
+    }
+}

MotionGraphs/MotionGraphs/Assets.xcassets/AppIcon.appiconset/Contents.json

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+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "20x20",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

MotionGraphs/MotionGraphs/Assets.xcassets/Contents.json

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+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

MotionGraphs/MotionGraphs/Assets.xcassets/accelerometer.imageset/Contents.json

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+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "accelerometer@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "accelerometer@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

MotionGraphs/MotionGraphs/Assets.xcassets/device_motion.imageset/Contents.json

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+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "device_motion@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "device_motion@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}