内容

• 公共类型
• 特性
• 公共函数
• 重实现公共函数
• 静态公共成员
• 详细描述
• QAmbientLightReading Units

QAmbientLightReading Class

The QAmbientLightReading class represents one reading from the ambient light sensor. 更多...

头：	#include <QAmbientLightReading>
qmake:	QT += sensors
Since:	Qt 5.1
继承：	QSensorReading

• 所有成员列表，包括继承成员
• 过时成员

公共类型

enum	LightLevel { Undefined, Dark, Twilight, Light, Bright, Sunny }

特性

• lightLevel : const LightLevel

• 1 特性继承自 QSensorReading
• 1 特性继承自 QObject

公共函数

	QAmbientLightReading (QObject * parent = DECLARE_READING(QAmbientLightReading))
virtual	~QAmbientLightReading ()
QAmbientLightReading::LightLevel	lightLevel () const
void	setLightLevel (QAmbientLightReading::LightLevel lightLevel )

重实现公共函数

virtual void

copyValuesFrom (QSensorReading * other ) override

• 4 公共函数继承自 QSensorReading
• 31 公共函数继承自 QObject

静态公共成员

const QMetaObject

staticMetaObject

• 9 静态公共成员继承自 QObject

额外继承成员

• 1 公共槽继承自 QObject
• 2 信号继承自 QObject
• 9 保护函数继承自 QObject

详细描述

The QAmbientLightReading class represents one reading from the ambient light sensor.

QAmbientLightReading Units

The ambient light sensor returns the intensity of the ambient light using the pre-defined values found in the QAmbientLightReading::LightLevel 枚举。

成员类型文档编制

enum QAmbientLightReading:: LightLevel

This enum represents the ambient light level.

常量	值	描述
QAmbientLightReading::Undefined	0	The light level is unknown.
QAmbientLightReading::Dark	1	It is dark.
QAmbientLightReading::Twilight	2	It is moderately dark.
QAmbientLightReading::Light	3	It is light (eg. internal lights).
QAmbientLightReading::Bright	4	It is bright (eg. shade).
QAmbientLightReading::Sunny	5	It is very bright (eg. direct sunlight).

特性文档编制

lightLevel : const LightLevel

This property holds the ambient light level.

The value represents the ambient light and comes from QAmbientLightReading::LightLevel .

访问函数：

QAmbientLightReading::LightLevel

lightLevel () const

另请参阅 QAmbientLightReading Units .

成员函数文档编制

QAmbientLightReading:: QAmbientLightReading ( QObject * parent = DECLARE_READING(QAmbientLightReading))

Default constructs an instance of QAmbientLightReading.

[virtual] QAmbientLightReading:: ~QAmbientLightReading ()

Destroys the instance of QAmbientLightReading. The destructor is virtual.

[override virtual] void QAmbientLightReading:: copyValuesFrom ( QSensorReading * other )

void QAmbientLightReading:: setLightLevel ( QAmbientLightReading::LightLevel lightLevel )

Sets the ambient light level to lightLevel .

另请参阅 lightLevel ().