在开发通常在30米或1小时后发生的WP7应用程序时,我遇到了非常奇怪的问题,尽管代码非常简单,几乎与示例相同.模拟器没有任何问题.
> app崩溃,没有异常被抛出
>未处理的异常：{“0xffffffff”}(是的,消息是“0xffffffff”.并且Stacktrace为空)
>一旦我获得DateTimeOffset.Now属性(！)时抛出一个异常
> UI线程冻结,无法终止应用程序,不得不重启设备
所以在这一点上我认为WP7真的不稳定或我的设备硬件有问题.
WP7是否存在老化测试？像Memtest86,Prime和其他桌面工具一样？
编辑：这是导致问题的代码：
public partial class MainPage : PhoneApplicationPage
{
private Accelerometer _accelerometer;
private GeoCoordinateWatcher _gps;
public MainPage()
{
InitializeComponent();
_accelerometer = new Accelerometer();
_accelerometer.ReadingChanged += new EventHandler<AccelerometerReadingEventArgs>(_accelerometer_ReadingChanged);
_accelerometer.Start();
_gps = new GeoCoordinateWatcher(GeoPositionAccuracy.High);
_gps.PositionChanged += new EventHandler<GeoPositionChangedEventArgs<GeoCoordinate>>(_gps_PositionChanged);
_gps.Start();
}
void _gps_PositionChanged(object sender,GeoPositionChangedEventArgs<GeoCoordinate> e)
{
Dispatcher.BeginInvoke(() =>
{
TBLocation.Text = e.Position.Location.ToString();
});
}
void _accelerometer_ReadingChanged(object sender,AccelerometerReadingEventArgs e)
{
Dispatcher.BeginInvoke(() =>
{
TBAccelX.Text = string.Format("X: {0:F2} g",e.X);
TBAccelY.Text = string.Format("Y: {0:F2} g",e.Y);
});
}
}
<phone:PhoneApplicationPage
x:Class="AccelerometerTest2.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="768"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
SupportedOrientations="Portrait" Orientation="Portrait"
shell:SystemTray.IsVisible="True">
<StackPanel>
<TextBlock Name="TBAccelX"/>
<TextBlock Name="TBAccelY"/>
<TextBlock Name="TBLocation"/>
</StackPanel>
</phone:PhoneApplicationPage>
编辑：因为我怀疑手机有问题.该应用程序已在另一台设备上正常运行了5个小时.
