mobile: golang.org/x/mobile/exp/sensor Index | Files

package sensor

import "golang.org/x/mobile/exp/sensor"

Package sensor provides sensor events from various movement sensors.

Index

Package Files

notmobile.go sensor.go

Constants

❖
const (
    Accelerometer = Type(0)
    Gyroscope     = Type(1)
    Magnetometer  = Type(2)
)

func Disable

❖
func Disable(t Type) error

Disable disables to feed the manager with the specified sensor. Disable is not safe for concurrent use.

func Enable

❖
func Enable(t Type, delay time.Duration) error

Enable enables the specified sensor type with the given delay rate. Users must set a non-nil Sender via Notify before enabling a sensor, otherwise an error will be returned.

func Notify

❖
func Notify(s Sender)

Notify registers a Sender and sensor events will be sent to s. A typical example of Sender implementations is app.App. Once you call Notify, you are not allowed to call it again. You cannot call Notify with a nil Sender.

type Event

❖
type Event struct {
    // Sensor is the type of the sensor the event is coming from.
    Sensor Type

    // Timestamp is a device specific event time in nanoseconds.
    // Timestamps are not Unix times, they represent a time that is
    // only valid for the device's default sensor.
    Timestamp int64

    // Data is the event data.
    //
    // If the event source is Accelerometer,
    //  - Data[0]: acceleration force in x axis in m/s^2
    //  - Data[1]: acceleration force in y axis in m/s^2
    //  - Data[2]: acceleration force in z axis in m/s^2
    //
    // If the event source is Gyroscope,
    //  - Data[0]: rate of rotation around the x axis in rad/s
    //  - Data[1]: rate of rotation around the y axis in rad/s
    //  - Data[2]: rate of rotation around the z axis in rad/s
    //
    // If the event source is Magnetometer,
    //  - Data[0]: force of gravity along the x axis in m/s^2
    //  - Data[1]: force of gravity along the y axis in m/s^2
    //  - Data[2]: force of gravity along the z axis in m/s^2
    //
    Data []float64
}

Event represents a sensor event.

type Sender

❖
type Sender interface {
    Send(event interface{})
}

Sender sends an event.

type Type

❖
type Type int

Type represents a sensor type.

func (Type) String

❖
func (t Type) String() string

String returns the string representation of the sensor type.

Package sensor imports 3 packages (graph). Updated 4 days ago. Refresh now. Tools for package owners.