static async Task <FileResult> PlatformCaptureAsync(MediaPickerOptions options, bool photo)
{
await Permissions.EnsureGrantedAsync <Permissions.Camera>();
await Permissions.EnsureGrantedAsync <Permissions.StorageWrite>();
var capturePhotoIntent = new Intent(photo ? MediaStore.ActionImageCapture : MediaStore.ActionVideoCapture);
if (!Platform.IsIntentSupported(capturePhotoIntent))
{
throw new FeatureNotSupportedException($"Either there was no camera on the device or '{capturePhotoIntent.Action}' was not added to the <queries> element in the app's manifest file. See more: https://developer.android.com/about/versions/11/privacy/package-visibility");
}
capturePhotoIntent.AddFlags(ActivityFlags.GrantReadUriPermission);
capturePhotoIntent.AddFlags(ActivityFlags.GrantWriteUriPermission);
try
{
var activity = Platform.GetCurrentActivity(true);
// Create the temporary file
var ext = photo
? FileSystem.Extensions.Jpg
: FileSystem.Extensions.Mp4;
var fileName = Guid.NewGuid().ToString("N") + ext;
var tmpFile = FileSystem.GetEssentialsTemporaryFile(Platform.AppContext.CacheDir, fileName);
// Set up the content:// uri
AndroidUri outputUri = null;
void OnCreate(Intent intent)
{
// Android requires that using a file provider to get a content:// uri for a file to be called
// from within the context of the actual activity which may share that uri with another intent
// it launches.
outputUri ??= FileProvider.GetUriForFile(tmpFile);
intent.PutExtra(MediaStore.ExtraOutput, outputUri);
}
// Start the capture process
await IntermediateActivity.StartAsync(capturePhotoIntent, Platform.requestCodeMediaCapture, OnCreate);
// Return the file that we just captured
return(new FileResult(tmpFile.AbsolutePath));
}
catch (OperationCanceledException)
{
return(null);
}
}
internal static AndroidUri GetShareableFileUri(FileBase file)
{
Java.IO.File sharedFile;
if (FileProvider.IsFileInPublicLocation(file.FullPath))
{
// we are sharing a file in a "shared/public" location
sharedFile = new Java.IO.File(file.FullPath);
}
else
{
var rootDir = FileProvider.GetTemporaryDirectory();
// create a unique directory just in case there are multiple file with the same name
var tmpDir = new Java.IO.File(rootDir, Guid.NewGuid().ToString("N"));
tmpDir.Mkdirs();
tmpDir.DeleteOnExit();
// create the new temprary file
var tmpFile = new Java.IO.File(tmpDir, file.FileName);
tmpFile.DeleteOnExit();
var fileUri = AndroidUri.Parse(file.FullPath);
if (fileUri.Scheme == "content")
{
using var stream = Application.Context.ContentResolver.OpenInputStream(fileUri);
using var destStream = System.IO.File.Create(tmpFile.CanonicalPath);
stream.CopyTo(destStream);
}
else
{
System.IO.File.Copy(file.FullPath, tmpFile.CanonicalPath);
}
sharedFile = tmpFile;
}
// create the uri, if N use file provider
if (HasApiLevelN)
{
var providerAuthority = AppContext.PackageName + ".fileProvider";
return(FileProvider.GetUriForFile(
AppContext.ApplicationContext,
providerAuthority,
sharedFile));
}
// use the shared file path created
return(AndroidUri.FromFile(sharedFile));
}
internal static AndroidUri GetShareableFileUri(string filename)
{
Java.IO.File sharedFile;
if (FileProvider.IsFileInPublicLocation(filename))
{
// we are sharing a file in a "shared/public" location
sharedFile = new Java.IO.File(filename);
}
else
{
var rootDir = FileProvider.GetTemporaryDirectory();
// create a unique directory just in case there are multiple file with the same name
var tmpDir = new Java.IO.File(rootDir, Guid.NewGuid().ToString("N"));
tmpDir.Mkdirs();
tmpDir.DeleteOnExit();
// create the new temprary file
var tmpFile = new Java.IO.File(tmpDir, System.IO.Path.GetFileName(filename));
System.IO.File.Copy(filename, tmpFile.CanonicalPath);
tmpFile.DeleteOnExit();
sharedFile = tmpFile;
}
// create the uri, if N use file provider
if (HasApiLevelN)
{
var providerAuthority = AppContext.PackageName + ".fileProvider";
return(FileProvider.GetUriForFile(
AppContext.ApplicationContext,
providerAuthority,
sharedFile));
}
// use the shared file path created
return(AndroidUri.FromFile(sharedFile));
}
internal static AndroidUri GetUriForFile(Java.IO.File file) => FileProvider.GetUriForFile(Platform.AppContext, Authority, file);
