Windows手机崩溃device.Sensors.ni.dll

时间:2015-04-17 10:48:55

标签: c# crash windows-phone-8.1

我的应用程序遇到了一些崩溃(有点类似于罗盘应用程序)。 Windows崩溃报告告诉我:

frame 0: 
Microsoft.Devices.Sensors.ni.dll; Microsoft.Devices.Sensors.Accelerometer.Start; 0x0000006c    
frame 1:
PivotApp1.ni.DLL; PivotApp1.MainPage+_start_d__0.MoveNext; 0x000001d4    
frame 2: 
mscorlib.ni.dll; System.Runtime.CompilerServices.AsyncMethodBuilderCore._ThrowAsync_b__3; 0x00000036

我无法理解这究竟意味着什么。根据我得到的结果,可能是因为加速度计。

这是我当前的代码,似乎错误是从这里的某个地方生成的:

private async void start()
    {
        //Check for the user agreement in use his position. If not, method returns.
        if ((bool)IsolatedStorageSettings.ApplicationSettings["LocationConsent"] != true)
        {
            // The user has opted out of Location.

            MessageBox.Show(AppResources.main_cantuse);

            Application.Current.Terminate();
        }

        else
        {
            //KOMPASS
            if (compass == null)
            {
                // Instantiate the compass.
                compass = new Compass();

                // Specify the desired time between updates. The sensor accepts
                // intervals in multiples of 20 ms.
                compass.TimeBetweenUpdates = TimeSpan.FromMilliseconds(20);

                compass.CurrentValueChanged +=
                new EventHandler<SensorReadingEventArgs<CompassReading>>(compass_CurrentValueChanged);
                compass.Calibrate +=
                new EventHandler<CalibrationEventArgs>(compass_Calibrate);
            }

            try
            {
                compass.Start();
                timer.Start();

                accelerometer = new Accelerometer();
                accelerometer.CurrentValueChanged +=
                    new EventHandler<SensorReadingEventArgs<AccelerometerReading>>(accelerometer_CurrentValueChanged);
                accelerometer.Start();
            }
            catch (InvalidOperationException)
            {
                MessageBox.Show(AppResources.main_unabletostart);                    
            }

我想问一下,我是否必须检查加速度计是否准备好(或无效检查或其他)?

感谢您的任何帮助或指导。

1 个答案:

答案 0 :(得分:0)

那些崩溃可能来自没有指南针的设备(是的,有像这样的设备)。

您应该使用Compass.IsSupported检查指南针,并仅在返回true时使用它。