MvvmCross PictureChooser插件在Windows Phone 8.1中不起作用

Question

I am developing an Windows Phone 8.1 app using MvvmCross. However, I am unable to use Picture Chooser Plugin.

Picture Chooser:

I am calling:

Stream tt= await priChooserTask.ChoosePictureFromLibraryAsync(1024, 95);

A File Picker will open choose file but the Stream is always null. await call never return stream.

I also tried the PictureTaking sample, but it is not working on Windows phone 8.1 Stream is always null.

Answer 1

I had found this article , however it didnt work for me (i got some exceptions and camera stopped to work at all) so i needed to go deeper.

In MvxPictureChooserTask, i added

        var capture = new MediaCapture();
        await capture.InitializeAsync(new MediaCaptureInitializationSettings {PhotoCaptureSource = PhotoCaptureSource.Photo}); // New line
        await capture.StartPreviewAsync(); // New line
        await capture.CapturePhotoToStorageFileAsync(encoding, file);

but that didnt work for me either.

As i understood, there's no "chosers" in WP 8.1 anymore. We cant ask system "please, make a photo and return it to me" like it was in 8.0 and earlier. Now we have to create our own view with CaptureElement and MediaCapture. I dunno how to move that into a plugin yet, but if to talk about Windows implementation, something like this works fine for me.

Edit: here is another sample that works fine, but still it is WP 8.1.