com.google.appinventor.components.runtime

Class Pedometer

java.lang.Object

com.google.appinventor.components.runtime.AndroidNonvisibleComponent

com.google.appinventor.components.runtime.Pedometer

All Implemented Interfaces:

android.hardware.SensorEventListener, android.location.LocationListener, Component, Deleteable

public class Pedometer
extends AndroidNonvisibleComponent
implements Component, android.location.LocationListener, android.hardware.SensorEventListener, Deleteable

This component keeps count of steps using the accelerometer.

Field Summary

Fields inherited from class com.google.appinventor.components.runtime.AndroidNonvisibleComponent

form

Fields inherited from interface com.google.appinventor.components.runtime.Component

ACCELEROMETER_SENSITIVITY_MODERATE, ACCELEROMETER_SENSITIVITY_STRONG, ACCELEROMETER_SENSITIVITY_WEAK, ALIGNMENT_CENTER, ALIGNMENT_NORMAL, ALIGNMENT_OPPOSITE, ASSET_DIRECTORY, BUTTON_SHAPE_DEFAULT, BUTTON_SHAPE_OVAL, BUTTON_SHAPE_RECT, BUTTON_SHAPE_ROUNDED, COLOR_BLACK, COLOR_BLUE, COLOR_CYAN, COLOR_DEFAULT, COLOR_DKGRAY, COLOR_GRAY, COLOR_GREEN, COLOR_LTGRAY, COLOR_MAGENTA, COLOR_NONE, COLOR_ORANGE, COLOR_PINK, COLOR_RED, COLOR_WHITE, COLOR_YELLOW, DEFAULT_VALUE_COLOR_BLACK, DEFAULT_VALUE_COLOR_BLUE, DEFAULT_VALUE_COLOR_CYAN, DEFAULT_VALUE_COLOR_DEFAULT, DEFAULT_VALUE_COLOR_DKGRAY, DEFAULT_VALUE_COLOR_GRAY, DEFAULT_VALUE_COLOR_GREEN, DEFAULT_VALUE_COLOR_LTGRAY, DEFAULT_VALUE_COLOR_MAGENTA, DEFAULT_VALUE_COLOR_NONE, DEFAULT_VALUE_COLOR_ORANGE, DEFAULT_VALUE_COLOR_PINK, DEFAULT_VALUE_COLOR_RED, DEFAULT_VALUE_COLOR_WHITE, DEFAULT_VALUE_COLOR_YELLOW, DIRECTION_EAST, DIRECTION_MAX, DIRECTION_MIN, DIRECTION_NONE, DIRECTION_NORTH, DIRECTION_NORTHEAST, DIRECTION_NORTHWEST, DIRECTION_SOUTH, DIRECTION_SOUTHEAST, DIRECTION_SOUTHWEST, DIRECTION_WEST, FONT_DEFAULT_SIZE, LAYOUT_ORIENTATION_HORIZONTAL, LAYOUT_ORIENTATION_VERTICAL, LENGTH_FILL_PARENT, LENGTH_PREFERRED, LENGTH_UNKNOWN, SLIDER_MAX_VALUE, SLIDER_MIN_VALUE, SLIDER_THUMB_VALUE, TOAST_LENGTH_LONG, TOAST_LENGTH_SHORT, TYPEFACE_DEFAULT, TYPEFACE_MONOSPACE, TYPEFACE_SANSSERIF, TYPEFACE_SERIF

Constructor Summary

Constructors

Constructor and Description
Pedometer(ComponentContainer container) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	CalibrateStrideLength() Tells Whether stride length calibration is currently going on.
void	CalibrateStrideLength(boolean cal) Starts the process of calibrating the stride length by comparing number of steps with the ditance covered (using the GPS).
void	CalibrationFailed() Indicates that the calibration has failed.
float	Distance() Returns the approximate distance traveled in meters.
long	ElapsedTime() Returns the time elapsed in milliseconds since the pedometer has started.
void	GPSAvailable() Indicates that the GPS is now available to use for distance measurement, and that calibration is now possible.
void	GPSLost() Indicates that the GPS signal is lost.
boolean	Moving() Returns the current status of motion.
void	onAccuracyChanged(android.hardware.Sensor sensor, int accuracy)
void	onDelete()
void	onLocationChanged(android.location.Location loc)
void	onProviderDisabled(java.lang.String provider)
void	onProviderEnabled(java.lang.String provider)
void	onSensorChanged(android.hardware.SensorEvent event)
void	onStatusChanged(java.lang.String provider, int status, android.os.Bundle data)
void	Pause() Pauses the counting of steps.
void	Reset() Resets the step count, distance, and clock.
void	Resume() Resumes the counting of steps.
void	Save() Saves the pedometer state to shared preferences.
void	SimpleStep(int simpleSteps, float distance) Indicates that a step was taken.
void	Start() Starts the pedometer.
void	StartedMoving() Indicates that the device is moving.
void	Stop() Stops the pedometer.
int	StopDetectionTimeout() Returns the duration of idleness (no steps detected) after which to go into a "stopped" state.
void	StopDetectionTimeout(int timeout) Sets the duration of idleness (no steps detected) after which to go into a "stopped" state.
void	StoppedMoving() Indicates that the device has stopped.
float	StrideLength() Returns the current estimate of stride length in meters, if calibrated, or returns the default (0.73 m) otherwise.
void	StrideLength(float length) Specifies the stride length in meters.
boolean	UseGPS() Returns whether the GPS is being used to measure distance.
void	UseGPS(boolean gps) Specifies whether to use GPS, if signal is available, to compute distance.
void	WalkStep(int walkSteps, float distance) Indicates that a step was taken while walking.

Methods inherited from class com.google.appinventor.components.runtime.AndroidNonvisibleComponent

getDispatchDelegate

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.google.appinventor.components.runtime.Component

getDispatchDelegate

Constructor Detail

Pedometer

public Pedometer(ComponentContainer container)

Constructor.

Method Detail

Start

public void Start()

Starts the pedometer.

Stop

public void Stop()

Stops the pedometer.

Reset

public void Reset()

Resets the step count, distance, and clock.

Resume

public void Resume()

Resumes the counting of steps.

Pause

public void Pause()

Pauses the counting of steps.

Save

public void Save()

Saves the pedometer state to shared preferences.

SimpleStep

public void SimpleStep(int simpleSteps,
              float distance)

Indicates that a step was taken.

Parameters:

simpleSteps - number of raw steps detected

distance - approximate distance covered by number of simpleSteps in meters

WalkStep

public void WalkStep(int walkSteps,
            float distance)

Indicates that a step was taken while walking. This will not be called if a single step is taken while standing still.

Parameters:

walkSteps - number of walking steps detected

distance - approximate distance covered by the number of walkSteps in meters

StartedMoving

public void StartedMoving()

Indicates that the device is moving.

StoppedMoving

public void StoppedMoving()

Indicates that the device has stopped.

CalibrationFailed

public void CalibrationFailed()

Indicates that the calibration has failed. This could happen is the GPS is not active, or if the client has set UseGps to false.

GPSAvailable

public void GPSAvailable()

Indicates that the GPS is now available to use for distance measurement, and that calibration is now possible.

GPSLost

public void GPSLost()

Indicates that the GPS signal is lost.

CalibrateStrideLength

public void CalibrateStrideLength(boolean cal)

Starts the process of calibrating the stride length by comparing number of steps with the ditance covered (using the GPS).

CalibrateStrideLength

public boolean CalibrateStrideLength()

Tells Whether stride length calibration is currently going on.

Returns:

true if stride length calibration is currently going on, false otherwise.

StrideLength

public void StrideLength(float length)

Specifies the stride length in meters. The application can use this to explicitly set stride length to override the one calculated by the pedometer's calibration mechanism. As a side effect, this method turns off calibration of stride length using the GPS.

Parameters:

length - is the stride length in meters.

StrideLength

public float StrideLength()

Returns the current estimate of stride length in meters, if calibrated, or returns the default (0.73 m) otherwise.

Returns:

length of the stride in meters.

StopDetectionTimeout

public void StopDetectionTimeout(int timeout)

Sets the duration of idleness (no steps detected) after which to go into a "stopped" state.

Parameters:

timeout - the timeout in milliseconds.

StopDetectionTimeout

public int StopDetectionTimeout()

Returns the duration of idleness (no steps detected) after which to go into a "stopped" state.

Returns:

the timeout in milliseconds.

UseGPS

public void UseGPS(boolean gps)

Specifies whether to use GPS, if signal is available, to compute distance. This is set to true by default.

Parameters:

gps - true enables use of GPS, false disables GPS

UseGPS

public boolean UseGPS()

Returns whether the GPS is being used to measure distance.

Returns:

true if GPS is being used to measure distance, false otherwise.

Distance

public float Distance()

Returns the approximate distance traveled in meters.

Returns:

approximate distance traveled in meters.

Moving

public boolean Moving()

Returns the current status of motion.

Returns:

true if moving, false otherwise.

ElapsedTime

public long ElapsedTime()

Returns the time elapsed in milliseconds since the pedometer has started.

Returns:

time elapsed in milliseconds since the pedometer was started.

onAccuracyChanged

public void onAccuracyChanged(android.hardware.Sensor sensor,
                     int accuracy)

Specified by:

onAccuracyChanged in interface android.hardware.SensorEventListener

onSensorChanged

public void onSensorChanged(android.hardware.SensorEvent event)

Specified by:

onSensorChanged in interface android.hardware.SensorEventListener

onLocationChanged

public void onLocationChanged(android.location.Location loc)

Specified by:

onLocationChanged in interface android.location.LocationListener

onProviderDisabled

public void onProviderDisabled(java.lang.String provider)

Specified by:

onProviderDisabled in interface android.location.LocationListener

onProviderEnabled

public void onProviderEnabled(java.lang.String provider)

Specified by:

onProviderEnabled in interface android.location.LocationListener

onStatusChanged

public void onStatusChanged(java.lang.String provider,
                   int status,
                   android.os.Bundle data)

Specified by:

onStatusChanged in interface android.location.LocationListener

onDelete

public void onDelete()

Specified by:

onDelete in interface Deleteable