我正在为 Windows 手机制作 Live Candle 应用程序..我想在手机方向改变时改变框架的方向..我无法这样做..我正在使用以下代码：-
namespace sdkSimpleMotionCS
{
public partial class MainPage : PhoneApplicationPage
{
Motion motion;
// Constructor
public MainPage()
{
InitializeComponent();
}
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
// Check to see if the Motion API is supported on the device.
if (!Motion.IsSupported)
{
MessageBox.Show("the Motion API is not supported on this device.");
return;
}
// If the Motion object is null, initialize it and add a CurrentValueChanged
// event handler.
if (motion == null)
{
motion = new Motion();
motion.TimeBetweenUpdates = TimeSpan.FromMilliseconds(20);
motion.CurrentValueChanged += new EventHandler<SensorReadingEventArgs<MotionReading>>(motion_CurrentValueChanged);
}
// Try to start the Motion API.
try
{
motion.Start();
}
catch (Exception)
{
MessageBox.Show("unable to start the Motion API.");
}
}
void motion_CurrentValueChanged(object sender, SensorReadingEventArgs<MotionReading> e)
{
// This event arrives on a background thread. Use BeginInvoke to call
// CurrentValueChanged on the UI thread.
Dispatcher.BeginInvoke(() => CurrentValueChanged(e.SensorReading));
}
private void CurrentValueChanged(MotionReading e)
{
if (motion.IsDataValid)
{
// Show the numeric values for attitude
yawTextBlock.Text = "YAW: " + MathHelper.ToDegrees(e.Attitude.Yaw).ToString("0") + "°";
pitchTextBlock.Text = "PITCH: " + MathHelper.ToDegrees(e.Attitude.Pitch).ToString("0") + "°";
rollTextBlock.Text = "ROLL: " + MathHelper.ToDegrees(e.Attitude.Roll).ToString("0") + "°";
// Set the Angle of the triangle RenderTransforms to the attitude of the device
((RotateTransform)yawtriangle.RenderTransform).Angle = MathHelper.ToDegrees(e.Attitude.Yaw);
((RotateTransform)pitchtriangle.RenderTransform).Angle = MathHelper.ToDegrees(e.Attitude.Pitch);
((RotateTransform)rolltriangle.RenderTransform).Angle = MathHelper.ToDegrees(e.Attitude.Roll);
// Show the numeric values for acceleration
xTextBlock.Text = "X: " + e.DeviceAcceleration.X.ToString("0.00");
yTextBlock.Text = "Y: " + e.DeviceAcceleration.Y.ToString("0.00");
zTextBlock.Text = "Z: " + e.DeviceAcceleration.Z.ToString("0.00");
// Show the acceleration values graphically
xLine.X2 = xLine.X1 + e.DeviceAcceleration.X * 100;
yLine.Y2 = yLine.Y1 - e.DeviceAcceleration.Y * 100;
zLine.X2 = zLine.X1 - e.DeviceAcceleration.Z * 50;
zLine.Y2 = zLine.Y1 + e.DeviceAcceleration.Z * 50;
}
}
}
}
我正在使用运动概念。