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

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

Public Member Functions
	Camera (ComponentContainer container)
boolean	UseFront ()
void	UseFront (boolean front)
void	TakePicture ()
void	resultReturned (int requestCode, int resultCode, Intent data)
void	AfterPicture (String image)
Public Member Functions inherited from com.google.appinventor.components.runtime.AndroidNonvisibleComponent
HandlesEventDispatching	getDispatchDelegate ()

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 Member Functions inherited from com.google.appinventor.components.runtime.AndroidNonvisibleComponent
	AndroidNonvisibleComponent (Form form)
Protected Attributes inherited from com.google.appinventor.components.runtime.AndroidNonvisibleComponent
final Form	form

Detailed Description

Use a camera component to take a picture on the phone.

Camera is a non-visible component that takes a picture using the device's camera. After the picture is taken, the path to the file on the phone containing the picture is available as an argument to the AfterPicture(String) event. The path can be used, for example, as the Picture property of an Image component.

Definition at line 57 of file Camera.java.

Constructor & Destructor Documentation

Camera()

com.google.appinventor.components.runtime.Camera.Camera

(

ComponentContainer

container

)

Creates a Camera component.

Camera has a boolean option to request the forward-facing camera via an intent extra.

Parameters

container

container, component will be placed in

Definition at line 83 of file Camera.java.

Member Function Documentation

AfterPicture()

void com.google.appinventor.components.runtime.Camera.AfterPicture

(

String

image

)

Called after the picture is taken. The text argument image is the path that can be used to locate the image on the phone.

Definition at line 247 of file Camera.java.

resultReturned()

void com.google.appinventor.components.runtime.Camera.resultReturned	(	int	requestCode,
		int	resultCode,
		Intent	data
	)

The callback method used to report Activity results back to the caller.

Parameters

requestCode	the originally passed in request code. Used to identify the call.
resultCode	the returned result code: android.app.Activity#RESULT_OK or android.app.Activity#RESULT_CANCELED
data	the returned data, encapsulated as an Intent.

Implements com.google.appinventor.components.runtime.ActivityResultListener.

Definition at line 187 of file Camera.java.

TakePicture()

void com.google.appinventor.components.runtime.Camera.TakePicture

(

)

Takes a picture, then raises the AfterPicture(String) event.

@internaldoc If useFront is true, adds an extra to the intent that requests the front-facing camera.

Definition at line 125 of file Camera.java.

UseFront() [1/2]

boolean com.google.appinventor.components.runtime.Camera.UseFront

(

)

Returns true if the front-facing camera is to be used (when available)

Returns

true 

indicates front-facing is to be used,

false 

will open default

Definition at line 98 of file Camera.java.

UseFront() [2/2]

void com.google.appinventor.components.runtime.Camera.UseFront

(

boolean

front

)

Specifies whether the front-facing camera should be used (when available)

Parameters

front

true for front-facing camera, false for default

Definition at line 114 of file Camera.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/Camera.java