WinRT中的设备类库中包含多种设备信息,如Sensor重力加速计,Location位置信息,Bluetooth蓝牙,Sms信息收发,下面看看各种使用方式:
Sensor重力加速器
Accelerormeter重力加速计对象,通过该对象可以获取重力加速X\Y\Z的值
首先定义该对象
Accelerormeter _accelerometer = Accelerometer.GetDefault();
接下来通过ReadingChanged事件去跟踪X\Y\Z值,Shaken晃动事件去作一些逻辑处理
注册ReadingChanged事件
_accelerometer.ReadingChanged += _accelerometer_ReadingChanged;
void
_accelerometer_ReadingChanged(Accelerometer sender, AccelerometerReadingChangedEventArgs args)
{
Dispatcher.InvokeAsync(CoreDispatcherPriority.Normal, (s, a) =>
{
AccelerometerReading reading = (a.Context
as
AccelerometerReadingChangedEventArgs).Reading;
tbX.Text = String.Format(
"{0,5:0.00}"
, reading.AccelerationX);
tbY.Text = String.Format(
"{0,5:0.00}"
, reading.AccelerationY);
tbZ.Text = String.Format(
"{0,5:0.00}"
, reading.AccelerationZ);
},
this
, e);
}
|
注册Shaken事件
_accelerometer.Shaken += _accelerometer_Shaken;
void
_accelerometer_Shaken(Accelerometer sender, AccelerometerShakenEventArgs args)
{
Dispatcher.InvokeAsync(CoreDispatcherPriority.Normal, (s, a) =>
{
_shakeCount++;
tbShakeCount.Text = _shakeCount.ToString();
},
this
, e);
}
|
其中需注意两个属性:
MinimumReportInterval 用于获取重力感应器报告数据的最小间隔时间
ReportInterval 设置或获取报告间隔值,该值的设置可以反应加速计的敏感性
GeoLocation位置信息
位置信息由Windows位置提供商通过WI-FI和IP 地址数据决定当前的地理信息,或者也可以通过GPS获取。通过GeoLocation可以得到准确的位置数据。
首先定义一个GeoLocation对象
Geolocator m_geo= new Geolocator();
接下来通过PositionChanged和 StatusChanged事件获取位置数据和当前位置设备器的状态
m_geo.PositionChanged += m_geo_PositionChanged;
Dispatcher.InvokeAsync(CoreDispatcherPriority.Normal, (s, a) =>
{
//先得到当前位置对象
Geoposition pos = (a.Context
as
IPositionChangedEventArgs).Position;
textblock1.Text =
"Latitude: "
+ pos.Coordinate.Latitude.ToString();
textblock2.Text =
"Longitude: "
+ pos.Coordinate.Longitude.ToString();
textblock3.Text =
"Accuracy: "
+ pos.Coordinate.Accuracy.ToString();
},
this
, e);
|
监视当前位置定位器的状态
m_geo.StatusChanged += m_geo_StatusChanged;
void
m_geo_StatusChanged(Geolocator sender, StatusChangedEventArgs args)
{
Dispatcher.InvokeAsync(CoreDispatcherPriority.Normal, (s, a) =>
{
PositionStatus status = (a.Context
as
IStatusChangedEventArgs).Status;
switch
(status)
{
case
PositionStatus.Ready:
textblockStatus1.Text =
"Ready"
;
break
;
case
PositionStatus.Initializing:
textblockStatus1.Text =
"Initializing"
;
break
;
case
PositionStatus.NoData:
textblockStatus1.Text =
"No data"
;
break
;
case
PositionStatus.Disabled:
textblockStatus1.Text =
"Disabled"
;
break
;
case
PositionStatus.NotInitialized:
textblockStatus1.Text =
"Not initialized"
;
break
;
case
PositionStatus.NotAvailable:
textblockStatus1.Text =
"Not available"
;
break
;
default
:
textblockStatus1.Text =
"Unexpected status"
;
break
;
}
},
this
, e);
}
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同样也有两个属性,这两个属性都是枚举类型:
PositionAccuracy:位置精准度,有0(默认)和1(高级别)两个值
PositionStatus:表明Geolocator提供位置数据的能力,上面例子也列出相应的枚举类型
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