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MotionGraphs: Version 2.0, 2017年02月02日
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>
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‎MotionGraphs/LICENSE.txt‎

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

‎MotionGraphs/MotionGraphs.xcodeproj/project.pbxproj‎

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‎MotionGraphs/MotionGraphs.xcodeproj/project.xcworkspace/contents.xcworkspacedata‎

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/*
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Copyright (C) 2016 Apple Inc. All Rights Reserved.
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See LICENSE.txt for this sample’s licensing information
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Abstract:
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A view controller to display output from the accelerometer.
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*/
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import UIKit
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import CoreMotion
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import simd
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class AccelerometerViewController: UIViewController, MotionGraphContainer {
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// MARK: Properties
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@IBOutlet weak var graphView: GraphView!
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// MARK: MotionGraphContainer properties
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var motionManager: CMMotionManager?
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@IBOutlet weak var updateIntervalLabel: UILabel!
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@IBOutlet weak var updateIntervalSlider: UISlider!
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let updateIntervalFormatter = MeasurementFormatter()
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@IBOutlet var valueLabels: [UILabel]!
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// MARK: UIViewController overrides
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override func viewWillAppear(_ animated: Bool) {
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super.viewWillAppear(animated)
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startUpdates()
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}
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override func viewDidDisappear(_ animated: Bool) {
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super.viewDidDisappear(animated)
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stopUpdates()
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}
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// MARK: Interface Builder actions
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@IBAction func intervalSliderChanged(_ sender: UISlider) {
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startUpdates()
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}
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// MARK: MotionGraphContainer implementation
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func startUpdates() {
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guard let motionManager = motionManager, motionManager.isAccelerometerAvailable else { return }
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updateIntervalLabel.text = formattedUpdateInterval
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motionManager.accelerometerUpdateInterval = TimeInterval(updateIntervalSlider.value)
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motionManager.showsDeviceMovementDisplay = true
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motionManager.startAccelerometerUpdates(to: .main) { accelerometerData, error in
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guard let accelerometerData = accelerometerData else { return }
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let acceleration: double3 = [accelerometerData.acceleration.x, accelerometerData.acceleration.y, accelerometerData.acceleration.z]
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self.graphView.add(acceleration)
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self.setValueLabels(xyz: acceleration)
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}
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}
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func stopUpdates() {
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guard let motionManager = motionManager, motionManager.isAccelerometerAvailable else { return }
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motionManager.stopAccelerometerUpdates()
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}
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}
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/*
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Copyright (C) 2016 Apple Inc. All Rights Reserved.
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See LICENSE.txt for this sample’s licensing information
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Abstract:
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The application delegate.
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*/
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import UIKit
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import CoreMotion
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@UIApplicationMain
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class AppDelegate: UIResponder, UIApplicationDelegate {
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var window: UIWindow?
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let motionManager = CMMotionManager()
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func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
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// Enumerate through the view controller hierarchy, setting the `motionManager`
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// property on those that conform to the `MotionGraphContainer` protocol.
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window?.rootViewController?.enumerateHierarchy { viewController in
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guard var container = viewController as? MotionGraphContainer else { return }
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container.motionManager = motionManager
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}
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return true
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}
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}
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