mirror of https://github.com/flutter/samples.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
38 lines
1.2 KiB
38 lines
1.2 KiB
// Copyright 2020 The Flutter team. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
import 'package:flutter/services.dart';
|
|
|
|
/// This class includes the implementation for [EventChannel] to listen to value
|
|
/// changes from the Accelerometer sensor from native side. It has a [readings]
|
|
/// getter to provide a stream of [AccelerometerReadings].
|
|
class Accelerometer {
|
|
static final _eventChannel = const EventChannel('eventChannelDemo');
|
|
|
|
/// Method responsible for providing a stream of [AccelerometerReadings] to listen
|
|
/// to value changes from the Accelerometer sensor.
|
|
static Stream<AccelerometerReadings> get readings {
|
|
return _eventChannel.receiveBroadcastStream().map(
|
|
(dynamic event) => AccelerometerReadings(
|
|
event[0] as double,
|
|
event[1] as double,
|
|
event[2] as double,
|
|
),
|
|
);
|
|
}
|
|
}
|
|
|
|
class AccelerometerReadings {
|
|
/// Acceleration force along the x-axis.
|
|
final double x;
|
|
|
|
/// Acceleration force along the y-axis.
|
|
final double y;
|
|
|
|
/// Acceleration force along the z-axis.
|
|
final double z;
|
|
|
|
AccelerometerReadings(this.x, this.y, this.z);
|
|
}
|