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39 lines
1.3 KiB
39 lines
1.3 KiB
// Copyright 2020 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import CoreMotion
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class AccelerometerStreamHandler: NSObject, FlutterStreamHandler {
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var motionManager: CMMotionManager;
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override init() {
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motionManager = CMMotionManager()
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}
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func onListen(withArguments arguments: Any?, eventSink events: @escaping FlutterEventSink) -> FlutterError? {
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if !motionManager.isAccelerometerAvailable {
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events(FlutterError(code: "SENSOR_UNAVAILABLE", message: "Accelerometer is not available", details: nil))
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}
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motionManager.accelerometerUpdateInterval = 0.1
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motionManager.startAccelerometerUpdates(to: OperationQueue.main) {(data, error) in
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guard let accelerationData = data?.acceleration else {
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events(FlutterError(code: "DATA_UNAVAILABLE", message: "Cannot get accelerometer data", details: nil ))
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return
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}
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events([accelerationData.x, accelerationData.y, accelerationData.z])
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}
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return nil
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}
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func onCancel(withArguments arguments: Any?) -> FlutterError? {
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return nil
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}
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}
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