com.google.appinventor.components.runtime

Class CheckBox

java.lang.Object

com.google.appinventor.components.runtime.VisibleComponent

com.google.appinventor.components.runtime.AndroidViewComponent

com.google.appinventor.components.runtime.CheckBox

All Implemented Interfaces:

android.view.View.OnFocusChangeListener, android.widget.CompoundButton.OnCheckedChangeListener, Component

public final class CheckBox
extends AndroidViewComponent
implements android.widget.CompoundButton.OnCheckedChangeListener, android.view.View.OnFocusChangeListener

Check box with the ability to detect initialization, focus change (mousing on or off of it), and user clicks.

Field Summary

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

container

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
CheckBox(ComponentContainer container) Creates a new CheckBox component.

Method Summary

Methods

Modifier and Type	Method and Description
int	BackgroundColor() Returns the checkbox's background color as an alpha-red-green-blue integer.
void	BackgroundColor(int argb) Specifies the checkbox's background color as an alpha-red-green-blue integer.
void	Changed() Default Changed event handler.
boolean	Checked() Returns true if the checkbox is checked.
void	Checked(boolean value) Checked property setter method.
boolean	Enabled() Returns true if the checkbox is active and clickable.
void	Enabled(boolean enabled) Specifies whether the checkbox should be active and clickable.
boolean	FontBold() Returns true if the checkbox's text should be bold.
void	FontBold(boolean bold) Specifies whether the checkbox's text should be bold.
boolean	FontItalic() Returns true if the checkbox's text should be italic.
void	FontItalic(boolean italic) Specifies whether the checkbox's text should be italic.
float	FontSize() Returns the checkbox's text's font size, measured in pixels.
void	FontSize(float size) Specifies the checkbox's text's font size, measured in pixels.
int	FontTypeface() Returns the checkbox's text's font face as default, serif, sans serif, or monospace.
void	FontTypeface(int typeface) Specifies the checkbox's text's font face as default, serif, sans serif, or monospace.
android.view.View	getView() Returns the View that is displayed in the UI.
void	GotFocus() Default GotFocus event handler.
void	LostFocus() Default LostFocus event handler.
void	onCheckedChanged(android.widget.CompoundButton buttonView, boolean isChecked)
void	onFocusChange(android.view.View previouslyFocused, boolean gainFocus)
java.lang.String	Text() Returns the text displayed by the checkbox.
void	Text(java.lang.String text) Specifies the text displayed by the checkbox.
int	TextColor() Returns the checkbox's text color as an alpha-red-green-blue integer.
void	TextColor(int argb) Specifies the checkbox's text color as an alpha-red-green-blue integer.

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

Column, Column, CopyHeight, CopyWidth, getDispatchDelegate, Height, Height, Row, Row, Visible, Visible, Width, Width

Methods inherited from class java.lang.Object

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

Constructor Detail

CheckBox

public CheckBox(ComponentContainer container)

Creates a new CheckBox component.

Parameters:

container - container, component will be placed in

Method Detail

getView

public android.view.View getView()

Description copied from class: AndroidViewComponent

Returns the View that is displayed in the UI.

Specified by:

getView in class AndroidViewComponent

Changed

public void Changed()

Default Changed event handler.

GotFocus

public void GotFocus()

Default GotFocus event handler.

LostFocus

public void LostFocus()

Default LostFocus event handler.

BackgroundColor

public int BackgroundColor()

Returns the checkbox's background color as an alpha-red-green-blue integer.

Returns:

background RGB color with alpha

BackgroundColor

public void BackgroundColor(int argb)

Specifies the checkbox's background color as an alpha-red-green-blue integer.

Parameters:

argb - background RGB color with alpha

Enabled

public boolean Enabled()

Returns true if the checkbox is active and clickable.

Returns:

true indicates enabled, false disabled

Enabled

public void Enabled(boolean enabled)

Specifies whether the checkbox should be active and clickable.

Parameters:

enabled - true for enabled, false disabled

FontBold

public boolean FontBold()

Returns true if the checkbox's text should be bold. If bold has been requested, this property will return true, even if the font does not support bold.

Returns:

true indicates bold, false normal

FontBold

public void FontBold(boolean bold)

Specifies whether the checkbox's text should be bold. Some fonts do not support bold.

Parameters:

bold - true indicates bold, false normal

FontItalic

public boolean FontItalic()

Returns true if the checkbox's text should be italic. If italic has been requested, this property will return true, even if the font does not support italic.

Returns:

true indicates italic, false normal

FontItalic

public void FontItalic(boolean italic)

Specifies whether the checkbox's text should be italic. Some fonts do not support italic.

Parameters:

italic - true indicates italic, false normal

FontSize

public float FontSize()

Returns the checkbox's text's font size, measured in pixels.

Returns:

font size in pixel

FontSize

public void FontSize(float size)

Specifies the checkbox's text's font size, measured in pixels.

Parameters:

size - font size in pixel

FontTypeface

public int FontTypeface()

Returns the checkbox's text's font face as default, serif, sans serif, or monospace.

Returns:

one of Component.TYPEFACE_DEFAULT, Component.TYPEFACE_SERIF, Component.TYPEFACE_SANSSERIF or Component.TYPEFACE_MONOSPACE

FontTypeface

public void FontTypeface(int typeface)

Specifies the checkbox's text's font face as default, serif, sans serif, or monospace.

Parameters:

typeface - one of Component.TYPEFACE_DEFAULT, Component.TYPEFACE_SERIF, Component.TYPEFACE_SANSSERIF or Component.TYPEFACE_MONOSPACE

Text

public java.lang.String Text()

Returns the text displayed by the checkbox.

Returns:

checkbox caption

Text

public void Text(java.lang.String text)

Specifies the text displayed by the checkbox.

Parameters:

text - new caption for checkbox

TextColor

public int TextColor()

Returns the checkbox's text color as an alpha-red-green-blue integer.

Returns:

text RGB color with alpha

TextColor

public void TextColor(int argb)

Specifies the checkbox's text color as an alpha-red-green-blue integer.

Parameters:

argb - text RGB color with alpha

Checked

public boolean Checked()

Returns true if the checkbox is checked.

Returns:

true indicates checked, false unchecked

Checked

public void Checked(boolean value)

Checked property setter method.

Parameters:

value - true indicates checked, false unchecked

onCheckedChanged

public void onCheckedChanged(android.widget.CompoundButton buttonView,
                    boolean isChecked)

Specified by:

onCheckedChanged in interface android.widget.CompoundButton.OnCheckedChangeListener

onFocusChange

public void onFocusChange(android.view.View previouslyFocused,
                 boolean gainFocus)

Specified by:

onFocusChange in interface android.view.View.OnFocusChangeListener