我想在WP7上使用CameraCaptureTask来获取手机上的图像并进行操作。我的代码如下:
CameraCaptureTask cameraCaptureTask;
public MainPage()
{
InitializeComponent();
try
{
cameraCaptureTask = new CameraCaptureTask();
cameraCaptureTask.Completed += new EventHandler<PhotoResult>(cameraCaptureTask_Completed);
}
catch (System.InvalidOperationException ex)
{
MessageBox.Show(ex.Message);
}
}
private void button1_Click(object sender, RoutedEventArgs e)
{
try
{
cameraCaptureTask.Show();
}
catch (System.InvalidOperationException ex)
{
MessageBox.Show(ex.Message);
}
}
void cameraCaptureTask_Completed(object sender, PhotoResult e)
{
MessageBox.Show("event: " + e.TaskResult.ToString());
if (e.TaskResult == TaskResult.OK)
{
BitmapImage bmp = new BitmapImage();
bmp.SetSource(e.ChosenPhoto);
image1.Source = bmp;
}
}
}
问题在于每次我点击button1时,事件被触发,但值是TaskResult.Cancel,而不是OK。此外,在手机上相机没有显示。有什么想法吗?谢谢。