com.google.appinventor.components.runtime.LightSensor Class Reference

Inheritance diagram for com.google.appinventor.components.runtime.LightSensor:

Public Member Functions
	LightSensor (ComponentContainer container)
void	LightChanged (float lux)
float	Lux ()
float	AverageLux ()
Public Member Functions inherited from com.google.appinventor.components.runtime.BufferedSingleValueSensor
	BufferedSingleValueSensor (ComponentContainer container, int sensorType, int bufferSize)
void	onSensorChanged (SensorEvent sensorEvent)
Public Member Functions inherited from com.google.appinventor.components.runtime.SingleValueSensor
	SingleValueSensor (ComponentContainer container, int sensorType)
boolean	Available ()
boolean	Enabled ()
void	Enabled (boolean enabled)
int	RefreshTime ()
void	RefreshTime (int time)
void	onAccuracyChanged (Sensor sensor, int accuracy)
void	onPause ()
void	onResume ()
void	onDelete ()
Public Member Functions inherited from com.google.appinventor.components.runtime.AndroidNonvisibleComponent
HandlesEventDispatching	getDispatchDelegate ()

Protected Member Functions
void	onValueChanged (float value)
Protected Member Functions inherited from com.google.appinventor.components.runtime.BufferedSingleValueSensor
float	getAverageValue ()
Protected Member Functions inherited from com.google.appinventor.components.runtime.SingleValueSensor
void	startListening ()
void	stopListening ()
boolean	isAvailable ()
void	setEnabled (boolean enabled)
float	getValue ()
Protected Member Functions inherited from com.google.appinventor.components.runtime.AndroidNonvisibleComponent
	AndroidNonvisibleComponent (Form form)

Additional Inherited Members
Static Public Attributes inherited from com.google.appinventor.components.runtime.Component
static final String	ASSET_DIRECTORY = "component"
static final int	ALIGNMENT_NORMAL = 0
static final int	ALIGNMENT_CENTER = 1
static final int	ALIGNMENT_OPPOSITE = 2
static final int	ACCELEROMETER_SENSITIVITY_WEAK = 1
static final int	ACCELEROMETER_SENSITIVITY_MODERATE = 2
static final int	ACCELEROMETER_SENSITIVITY_STRONG = 3
static final int	BUTTON_SHAPE_DEFAULT = 0
static final int	BUTTON_SHAPE_ROUNDED = 1
static final int	BUTTON_SHAPE_RECT = 2
static final int	BUTTON_SHAPE_OVAL = 3
static final int	COLOR_NONE = 0x00FFFFFF
static final int	COLOR_BLACK = 0xFF000000
static final int	COLOR_BLUE = 0xFF0000FF
static final int	COLOR_CYAN = 0xFF00FFFF
static final int	COLOR_DKGRAY = 0xFF444444
static final int	COLOR_GRAY = 0xFF888888
static final int	COLOR_GREEN = 0xFF00FF00
static final int	COLOR_LTGRAY = 0xFFCCCCCC
static final int	COLOR_MAGENTA = 0xFFFF00FF
static final int	COLOR_ORANGE = 0xFFFFC800
static final int	COLOR_PINK = 0xFFFFAFAF
static final int	COLOR_RED = 0xFFFF0000
static final int	COLOR_WHITE = 0xFFFFFFFF
static final int	COLOR_YELLOW = 0xFFFFFF00
static final int	COLOR_DEFAULT = 0x00000000
static final String	DEFAULT_VALUE_COLOR_NONE = "&H00FFFFFF"
static final String	DEFAULT_VALUE_COLOR_BLACK = "&HFF000000"
static final String	DEFAULT_VALUE_COLOR_BLUE = "&HFF0000FF"
static final String	DEFAULT_VALUE_COLOR_CYAN = "&HFF00FFFF"
static final String	DEFAULT_VALUE_COLOR_DKGRAY = "&HFF444444"
static final String	DEFAULT_VALUE_COLOR_GRAY = "&HFF888888"
static final String	DEFAULT_VALUE_COLOR_GREEN = "&HFF00FF00"
static final String	DEFAULT_VALUE_COLOR_LTGRAY = "&HFFCCCCCC"
static final String	DEFAULT_VALUE_COLOR_MAGENTA = "&HFFFF00FF"
static final String	DEFAULT_VALUE_COLOR_ORANGE = "&HFFFFC800"
static final String	DEFAULT_VALUE_COLOR_PINK = "&HFFFFAFAF"
static final String	DEFAULT_VALUE_COLOR_RED = "&HFFFF0000"
static final String	DEFAULT_VALUE_COLOR_WHITE = "&HFFFFFFFF"
static final String	DEFAULT_VALUE_COLOR_YELLOW = "&HFFFFFF00"
static final String	DEFAULT_VALUE_COLOR_DEFAULT = "&H00000000"
static final float	FONT_DEFAULT_SIZE = 14
static final int	LAYOUT_ORIENTATION_HORIZONTAL = ComponentConstants.LAYOUT_ORIENTATION_HORIZONTAL
static final int	LAYOUT_ORIENTATION_VERTICAL = ComponentConstants.LAYOUT_ORIENTATION_VERTICAL
static final int	SCALING_SCALE_PROPORTIONALLY = 0
static final int	SCALING_SCALE_TO_FIT = 1
static final int	TYPEFACE_DEFAULT = 0
static final int	TYPEFACE_SANSSERIF = 1
static final int	TYPEFACE_SERIF = 2
static final int	TYPEFACE_MONOSPACE = 3
static final int	LENGTH_PREFERRED = -1
static final int	LENGTH_FILL_PARENT = -2
static final int	LENGTH_UNKNOWN = -3
static final int	LENGTH_PERCENT_TAG = -1000
static final int	TOAST_LENGTH_SHORT = 0
static final int	TOAST_LENGTH_LONG = 1
static final int	DIRECTION_NORTH = 1
static final int	DIRECTION_NORTHEAST = 2
static final int	DIRECTION_EAST = 3
static final int	DIRECTION_SOUTHEAST = 4
static final int	DIRECTION_SOUTH = -1
static final int	DIRECTION_SOUTHWEST = -2
static final int	DIRECTION_WEST = -3
static final int	DIRECTION_NORTHWEST = -4
static final int	DIRECTION_NONE = 0
static final int	DIRECTION_MIN = -4
static final int	DIRECTION_MAX = 4
static float	SLIDER_MIN_VALUE = 10
static float	SLIDER_MAX_VALUE = 50
static float	SLIDER_THUMB_VALUE = (SLIDER_MIN_VALUE + SLIDER_MAX_VALUE) / 2.0f
static final String	DEFAULT_VALUE_TEXT_TO_SPEECH_COUNTRY = ""
static final String	DEFAULT_VALUE_TEXT_TO_SPEECH_LANGUAGE = ""
Protected Attributes inherited from com.google.appinventor.components.runtime.SingleValueSensor
int	sensorType
float	value
final SensorManager	sensorManager
boolean	enabled
int	refreshTime
Protected Attributes inherited from com.google.appinventor.components.runtime.AndroidNonvisibleComponent
final Form	form

Detailed Description

Physical world component that can measure the light level.

@internaldoc It is implemented using android.hardware.SensorListener (http://developer.android.com/reference/android/hardware/SensorListener.html).

Definition at line 36 of file LightSensor.java.

Constructor & Destructor Documentation

LightSensor()

com.google.appinventor.components.runtime.LightSensor.LightSensor

(

ComponentContainer

container

)

Creates a new LightSensor component.

Parameters

container

ignored (because this is a non-visible component)

Definition at line 44 of file LightSensor.java.

Member Function Documentation

AverageLux()

float com.google.appinventor.components.runtime.LightSensor.AverageLux

(

)

Returns the brightness in lux by averaging the previous 10 measured values. The sensor must be enabled and available to return meaningful values.

Returns

lux

Definition at line 82 of file LightSensor.java.

LightChanged()

void com.google.appinventor.components.runtime.LightSensor.LightChanged

(

float

lux

)

Indicates the light level changed.

Parameters

lux	the new light level in lux

Definition at line 59 of file LightSensor.java.

Lux()

float com.google.appinventor.components.runtime.LightSensor.Lux

(

)

Returns the last measured brightness in lux. The sensor must be enabled and available to return meaningful values.

Returns

lux

Definition at line 71 of file LightSensor.java.

onValueChanged()

void com.google.appinventor.components.runtime.LightSensor.onValueChanged ( float  value )

protected

Reimplemented from com.google.appinventor.components.runtime.SingleValueSensor.

Definition at line 49 of file LightSensor.java.

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The documentation for this class was generated from the following file:

• C:/Users/Ulli/appinventor-sources/appinventor/components/src/com/google/appinventor/components/runtime/LightSensor.java