private void VerifyOptions(StoreMediaOptions options)
{
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
}
private Intent CreateMediaIntent(int id, string type, string action, StoreMediaOptions options, bool tasked = true)
{
Intent pickerIntent = new Intent(this.context, typeof(MediaPickerActivity));
pickerIntent.PutExtra(MediaPickerActivity.ExtraId, id);
pickerIntent.PutExtra(MediaPickerActivity.ExtraType, type);
pickerIntent.PutExtra(MediaPickerActivity.ExtraAction, action);
pickerIntent.PutExtra(MediaPickerActivity.ExtraTasked, tasked);
if (options != null)
{
pickerIntent.PutExtra(MediaPickerActivity.ExtraPath, options.Directory);
pickerIntent.PutExtra(MediaStore.Images.ImageColumns.Title, options.Name);
var vidOptions = (options as StoreVideoOptions);
if (vidOptions != null)
{
pickerIntent.PutExtra(MediaStore.ExtraDurationLimit, (int)vidOptions.DesiredLength.TotalSeconds);
pickerIntent.PutExtra(MediaStore.ExtraVideoQuality, (int)vidOptions.Quality);
}
}
//pickerIntent.SetFlags(ActivityFlags.ClearTop);
pickerIntent.SetFlags(ActivityFlags.NewTask);
return(pickerIntent);
}
private void VerifyCameraOptions(StoreMediaOptions options)
{
this.VerifyOptions(options);
//if (!Enum.IsDefined(typeof(CameraFacingDirection), options.DefaultCamera))
//{
// throw new ArgumentException("options.Camera is not a member of CameraDevice");
//}
}
/// <summary>
/// Take a photo async with specified options
/// </summary>
/// <param name="options">Camera Media Options</param>
/// <returns>Media file of photo or null if canceled</returns>
public Task <MediaFile> TakePhotoAsync(StoreMediaOptions options)
{
if (!this.IsCameraAvailable)
{
throw new NotSupportedException();
}
return(this.TakeMediaAsync("image/*", MediaStore.ActionImageCapture, options));
}
// TODO GATH: Consider this way
// http://developer.xamarin.com/recipes/android/other_ux/camera_intent/take_a_picture_and_save_using_camera_app/
// http://stackoverflow.com/questions/21957599/xamarin-android-issue-reading-locally-stored-photo-from-camera-no-read-acces
////private void TakeAPicture(object sender, EventArgs eventArgs)
////{
//// Intent intent = new Intent(MediaStore.ActionImageCapture);
//// App._file = new File(App._dir, String.Format("myPhoto_{0}.jpg", Guid.NewGuid()));
//// intent.PutExtra(MediaStore.ExtraOutput, Uri.FromFile(App._file));
//// StartActivityForResult(intent, 0);
////}
/// <inheritdoc />
public async Task <MediaFile> TakePhotoAsync(StoreMediaOptions options)
{
if (!this.IsEnabled)
{
throw new NotSupportedException();
}
int id = this.GetRequestId();
this.tracer.Debug("TakePhotoAsync with RequestId={0}", id);
var ntcs = new TaskCompletionSource <MediaFile>(id);
if (Interlocked.CompareExchange(ref this.completionSource, ntcs, null) != null)
{
throw new InvalidOperationException("Only one operation can be active at a time");
}
var cameraActivityIntent = this.CreateCameraIntent(options, id);
this.context.StartActivity(cameraActivityIntent);
EventHandler <MediaPickedEventArgs> handler = null;
handler = (s, e) =>
{
this.tracer.Debug("EventHandler<MediaPickedEventArgs> fired");
var tcs = Interlocked.Exchange(ref this.completionSource, null);
Camera2BasicFragment.MediaPicked -= handler;
if (e.RequestId != id)
{
this.tracer.Warning("RequestId={0} does not match with {1}", id, e.RequestId);
return;
}
if (e.Error != null)
{
tcs.SetResult(null);
}
else if (e.IsCanceled)
{
this.tracer.Debug("EventHandler<MediaPickedEventArgs> IsCanceled");
tcs.SetResult(null);
}
else
{
this.tracer.Debug("EventHandler<MediaPickedEventArgs> media returned: {0}", e.Media.Filename);
tcs.SetResult(e.Media);
}
};
Camera2BasicFragment.MediaPicked += handler;
return(await ntcs.Task);
}
/// <summary>
/// </summary>
/// <param name="options"></param>
/// <returns></returns>
public Intent GetTakePhotoUI(StoreMediaOptions options)
{
if (!this.IsCameraAvailable)
{
throw new NotSupportedException();
}
int id = this.GetRequestId();
return(this.CreateMediaIntent(id, "image/*", MediaStore.ActionImageCapture, options, tasked: false));
}
internal MediaPickerDelegate(UIViewController viewController, UIImagePickerControllerSourceType sourceType, StoreMediaOptions options)
{
this.viewController = viewController;
this.source = sourceType;
this.options = options ?? new StoreMediaOptions();
if (viewController != null)
{
UIDevice.CurrentDevice.BeginGeneratingDeviceOrientationNotifications();
this.observer = NSNotificationCenter.DefaultCenter.AddObserver(UIDevice.OrientationDidChangeNotification, this.DidRotate);
}
}
private Intent CreateCameraIntent(StoreMediaOptions options, int id)
{
Intent pickerIntent = new Intent(this.context, typeof(CameraActivity));
pickerIntent.PutExtra(Camera2BasicFragment.ExtraId, id);
pickerIntent.PutExtra(Camera2BasicFragment.ExtraPath, options.Directory);
pickerIntent.PutExtra(Camera2BasicFragment.ExtraFilename, options.Name);
pickerIntent.PutExtra(Camera2BasicFragment.ExtraCameraFacingDirection, Camera2BasicFragment.ToLensFacingInteger(this.CameraFacingDirection));
Tracer.Create(this).Debug("CreateCameraIntent: ExtraCameraFacingDirection={0}", Camera2BasicFragment.ToLensFacingInteger(this.CameraFacingDirection));
pickerIntent.SetFlags(ActivityFlags.NewTask);
return(pickerIntent);
}
/// <inheritdoc />
public Task <MediaFile> PickPhotoAsync(PickMediaOptions options = null)
{
options = options ?? new PickMediaOptions();
this.CheckPhotoUsageDescription();
// TODO Use inheritance here
var cameraOptions = new StoreMediaOptions
{
PhotoSize = options.PhotoSize, CompressionQuality = options.CompressionQuality
};
return(this.GetMediaAsync(UIImagePickerControllerSourceType.PhotoLibrary, Constants.TypeImage, cameraOptions));
}
/// <inheritdoc />
public async Task <MediaFile> TakePhotoAsync(StoreMediaOptions options) // TODO GATH: link from WindowsStore assembly
{
if (!this.IsEnabled)
{
throw new NotSupportedException();
}
var capture = new CameraCaptureUI();
////capture.PhotoSettings.Format = CameraCaptureUIPhotoFormat.Jpeg;
////capture.PhotoSettings.MaxResolution = CameraCaptureUIMaxPhotoResolution.HighestAvailable;
var result = await capture.CaptureFileAsync(this.deviceInformation.Id);
if (result == null)
{
return(null);
}
StorageFolder rootFolder = ApplicationData.Current.LocalFolder;
string targetFilePath = options.GetFilePath(rootFolder.Path);
var directoryPath = Path.GetDirectoryName(targetFilePath);
var directoryName = options.Directory;
if (!string.IsNullOrWhiteSpace(directoryName))
{
var exists = await FolderExistsAsync(rootFolder, directoryPath);
if (!exists)
{
await rootFolder.CreateFolderAsync(directoryName, CreationCollisionOption.ReplaceExisting);
}
}
rootFolder = await StorageFolder.GetFolderFromPathAsync(directoryPath);
string targetFilename = Path.GetFileName(targetFilePath);
var file = await result.CopyAsync(rootFolder, targetFilename, NameCollisionOption.ReplaceExisting).AsTask().ConfigureAwait(false);
Stream stream = await file.OpenStreamForReadAsync().ConfigureAwait(false);
return(new MediaFile(file.Path, () => stream));
}
private Task <MediaFile> TakeMediaAsync(string type, string action, StoreMediaOptions options)
{
int id = this.GetRequestId();
var ntcs = new TaskCompletionSource <MediaFile>(id);
if (Interlocked.CompareExchange(ref this.completionSource, ntcs, null) != null)
{
throw new InvalidOperationException("Only one operation can be active at a time");
}
this.context.StartActivity(this.CreateMediaIntent(id, type, action, options));
EventHandler <MediaPickedEventArgs> handler = null;
handler = (s, e) =>
{
var tcs = Interlocked.Exchange(ref this.completionSource, null);
MediaPickerActivity.MediaPicked -= handler;
if (e.RequestId != id)
{
return;
}
if (e.Error != null)
{
tcs.SetResult(null);
}
else if (e.IsCanceled)
{
tcs.SetResult(null);
}
else
{
tcs.SetResult(e.Media);
}
};
MediaPickerActivity.MediaPicked += handler;
return(ntcs.Task);
}
/// <summary>
/// Take a photo async with specified options
/// </summary>
/// <param name="options">Camera Media Options</param>
/// <returns>Media file of photo or null if canceled</returns>
public Task <MediaFile> TakePhotoAsync(StoreMediaOptions options)
{
if (!this.IsCameraAvailable)
{
throw new NotSupportedException();
}
options.VerifyOptions();
var ntcs = new TaskCompletionSource <MediaFile>(options);
if (Interlocked.CompareExchange(ref completionSource, ntcs, null) != null)
{
throw new InvalidOperationException("Only one operation can be active at a time");
}
this.cameraCapture.Show();
return(ntcs.Task);
}
/// <inheritdoc />
public async Task <MediaFile> TakePhotoAsync(StoreMediaOptions options)
{
if (!this.IsEnabled)
{
throw new NotSupportedException();
}
//var capture = new CameraCaptureUI(this.CameraFacingDirection);
var capture = new ViewFinder(this.CameraFacingDirection);
var result = await capture.CaptureFileAsync();
if (result == null)
{
return(null);
}
StorageFolder rootFolder = ApplicationData.Current.LocalFolder;
string targetFilePath = options.GetFilePath(rootFolder.Path);
var directoryPath = Path.GetDirectoryName(targetFilePath);
var directoryName = options.Directory;
if (!string.IsNullOrWhiteSpace(directoryName))
{
var exists = Directory.Exists(directoryPath);
if (!exists)
{
await rootFolder.CreateFolderAsync(directoryName, CreationCollisionOption.ReplaceExisting);
}
}
rootFolder = await StorageFolder.GetFolderFromPathAsync(directoryPath);
string targetFilename = Path.GetFileName(targetFilePath);
var file = await result.CopyAsync(rootFolder, targetFilename, NameCollisionOption.ReplaceExisting).AsTask().ConfigureAwait(false);
Stream stream = await file.OpenStreamForReadAsync().ConfigureAwait(false);
return(new MediaFile(file.Path, () => stream));
}
public async Task <MediaFile> TakePhotoAsync(StoreMediaOptions options)
{
if (!this.IsEnabled)
{
throw new NotSupportedException();
}
if (!await this.AuthorizeCameraUse())
{
throw new Exception("Not authorized to access the camera.");
}
CheckCameraUsageDescription();
this.VerifyCameraOptions(options);
return(await this.GetMediaAsync(
sourceType : UIImagePickerControllerSourceType.Camera,
mediaType : Constants.TypeImage,
cameraFacingDirection : this.CameraFacingDirection,
options : options));
}
/// <inheritdoc />
public async Task <MediaFile> TakePhotoAsync(StoreMediaOptions options)
{
if (!this.IsEnabled)
{
throw new NotSupportedException();
}
var capture = new CameraCaptureUI();
capture.PhotoSettings.Format = CameraCaptureUIPhotoFormat.Jpeg;
capture.PhotoSettings.MaxResolution = CameraCaptureUIMaxPhotoResolution.HighestAvailable;
var result = await capture.CaptureFileAsync(CameraCaptureUIMode.Photo);
if (result == null)
{
return(null);
}
StorageFolder folder = ApplicationData.Current.LocalFolder;
string path = options.GetFilePath(folder.Path);
var directoryFull = Path.GetDirectoryName(path);
var newFolder = directoryFull.Replace(folder.Path, string.Empty);
if (!string.IsNullOrWhiteSpace(newFolder))
{
await folder.CreateFolderAsync(newFolder, CreationCollisionOption.OpenIfExists);
}
folder = await StorageFolder.GetFolderFromPathAsync(directoryFull);
string filename = Path.GetFileName(path);
var file = await result.CopyAsync(folder, filename, NameCollisionOption.GenerateUniqueName).AsTask();
return(new MediaFile(file.Path, () => file.OpenStreamForReadAsync().Result));
}
private Task <MediaFile> GetMediaAsync(UIImagePickerControllerSourceType sourceType, string mediaType, CameraFacingDirection cameraFacingDirection, StoreMediaOptions options = null)
{
var window = UIApplication.SharedApplication.KeyWindow;
if (window == null)
{
throw new InvalidOperationException("There's no current active window");
}
var viewController = window.RootViewController;
if (viewController == null)
{
window = UIApplication.SharedApplication.Windows.OrderByDescending(w => w.WindowLevel).FirstOrDefault(w => w.RootViewController != null);
if (window == null)
{
throw new InvalidOperationException("Could not find current view controller");
}
else
{
viewController = window.RootViewController;
}
}
while (viewController.PresentedViewController != null)
{
viewController = viewController.PresentedViewController;
}
MediaPickerDelegate ndelegate = new MediaPickerDelegate(viewController, sourceType, options);
var od = Interlocked.CompareExchange(ref this.pickerDelegate, ndelegate, null);
if (od != null)
{
throw new InvalidOperationException("Only one operation can be active at at time");
}
var picker = SetupController(ndelegate, sourceType, mediaType, cameraFacingDirection, options);
if (UIDevice.CurrentDevice.UserInterfaceIdiom == UIUserInterfaceIdiom.Pad && sourceType == UIImagePickerControllerSourceType.PhotoLibrary)
{
ndelegate.Popover = new UIPopoverController(picker);
ndelegate.Popover.Delegate = new MediaPickerPopoverDelegate(ndelegate, picker);
ndelegate.DisplayPopover();
}
else
{
viewController.PresentViewController(picker, true, null);
}
return(ndelegate.Task.ContinueWith(
t =>
{
if (this.popover != null)
{
this.popover.Dispose();
this.popover = null;
}
Interlocked.Exchange(ref this.pickerDelegate, null);
return t;
}).Unwrap());
}
private static MediaPickerController SetupController(MediaPickerDelegate mpDelegate, UIImagePickerControllerSourceType sourceType, string mediaType, CameraFacingDirection cameraFacingDirection, StoreMediaOptions options)
{
var picker = new MediaPickerController(mpDelegate);
picker.MediaTypes = new[] { mediaType };
picker.SourceType = sourceType;
if (sourceType == UIImagePickerControllerSourceType.Camera)
{
picker.CameraDevice = GetUICameraDevice(cameraFacingDirection);
picker.AllowsEditing = options.AllowCropping;
if (options.OverlayViewProvider != null)
{
var overlay = options.OverlayViewProvider;
if (overlay is UIView)
{
picker.CameraOverlayView = overlay as UIView;
}
}
if (mediaType == Constants.TypeImage)
{
picker.CameraCaptureMode = UIImagePickerControllerCameraCaptureMode.Photo;
}
else if (mediaType == Constants.TypeMovie)
{
StoreVideoOptions voptions = (StoreVideoOptions)options;
picker.CameraCaptureMode = UIImagePickerControllerCameraCaptureMode.Video;
picker.VideoQuality = GetQuailty(voptions.Quality);
picker.VideoMaximumDuration = voptions.DesiredLength.TotalSeconds;
}
}
return(picker);
}
