| // Copyright 2013 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #import "FLTImagePickerPlugin.h" |
| #import "FLTImagePickerPlugin_Test.h" |
| |
| #import <AVFoundation/AVFoundation.h> |
| #import <MobileCoreServices/MobileCoreServices.h> |
| #import <Photos/Photos.h> |
| #import <PhotosUI/PHPhotoLibrary+PhotosUISupport.h> |
| #import <PhotosUI/PhotosUI.h> |
| #import <UIKit/UIKit.h> |
| |
| #import "FLTImagePickerImageUtil.h" |
| #import "FLTImagePickerMetaDataUtil.h" |
| #import "FLTImagePickerPhotoAssetUtil.h" |
| #import "FLTPHPickerSaveImageToPathOperation.h" |
| #import "messages.g.h" |
| |
| @implementation FLTImagePickerMethodCallContext |
| - (instancetype)initWithResult:(nonnull FlutterResultAdapter)result { |
| if (self = [super init]) { |
| _result = [result copy]; |
| } |
| return self; |
| } |
| @end |
| |
| #pragma mark - |
| |
| @interface FLTImagePickerPlugin () |
| |
| /** |
| * The PHPickerViewController instance used to pick multiple |
| * images. |
| */ |
| @property(strong, nonatomic) PHPickerViewController *pickerViewController API_AVAILABLE(ios(14)); |
| |
| /** |
| * The UIImagePickerController instances that will be used when a new |
| * controller would normally be created. Each call to |
| * createImagePickerController will remove the current first element from |
| * the array. |
| */ |
| @property(strong, nonatomic) |
| NSMutableArray<UIImagePickerController *> *imagePickerControllerOverrides; |
| |
| @end |
| |
| typedef NS_ENUM(NSInteger, ImagePickerClassType) { UIImagePickerClassType, PHPickerClassType }; |
| |
| @implementation FLTImagePickerPlugin |
| |
| + (void)registerWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar { |
| FLTImagePickerPlugin *instance = [[FLTImagePickerPlugin alloc] init]; |
| FLTImagePickerApiSetup(registrar.messenger, instance); |
| } |
| |
| - (UIImagePickerController *)createImagePickerController { |
| if ([self.imagePickerControllerOverrides count] > 0) { |
| UIImagePickerController *controller = [self.imagePickerControllerOverrides firstObject]; |
| [self.imagePickerControllerOverrides removeObjectAtIndex:0]; |
| return controller; |
| } |
| |
| return [[UIImagePickerController alloc] init]; |
| } |
| |
| - (void)setImagePickerControllerOverrides: |
| (NSArray<UIImagePickerController *> *)imagePickerControllers { |
| _imagePickerControllerOverrides = [imagePickerControllers mutableCopy]; |
| } |
| |
| - (UIViewController *)viewControllerWithWindow:(UIWindow *)window { |
| UIWindow *windowToUse = window; |
| if (windowToUse == nil) { |
| for (UIWindow *window in [UIApplication sharedApplication].windows) { |
| if (window.isKeyWindow) { |
| windowToUse = window; |
| break; |
| } |
| } |
| } |
| |
| UIViewController *topController = windowToUse.rootViewController; |
| while (topController.presentedViewController) { |
| topController = topController.presentedViewController; |
| } |
| return topController; |
| } |
| |
| /** |
| * Returns the UIImagePickerControllerCameraDevice to use given [source]. |
| * |
| * @param source The source specification from Dart. |
| */ |
| - (UIImagePickerControllerCameraDevice)cameraDeviceForSource:(FLTSourceSpecification *)source { |
| switch (source.camera) { |
| case FLTSourceCameraFront: |
| return UIImagePickerControllerCameraDeviceFront; |
| case FLTSourceCameraRear: |
| return UIImagePickerControllerCameraDeviceRear; |
| } |
| } |
| |
| - (void)launchPHPickerWithContext:(nonnull FLTImagePickerMethodCallContext *)context |
| API_AVAILABLE(ios(14)) { |
| PHPickerConfiguration *config = |
| [[PHPickerConfiguration alloc] initWithPhotoLibrary:PHPhotoLibrary.sharedPhotoLibrary]; |
| config.selectionLimit = context.maxImageCount; |
| if (context.includeVideo) { |
| config.filter = [PHPickerFilter anyFilterMatchingSubfilters:@[ |
| [PHPickerFilter imagesFilter], [PHPickerFilter videosFilter] |
| ]]; |
| } else { |
| config.filter = [PHPickerFilter imagesFilter]; |
| } |
| |
| _pickerViewController = [[PHPickerViewController alloc] initWithConfiguration:config]; |
| _pickerViewController.delegate = self; |
| _pickerViewController.presentationController.delegate = self; |
| self.callContext = context; |
| |
| if (context.requestFullMetadata) { |
| [self checkPhotoAuthorizationForAccessLevel]; |
| } else { |
| [self showPhotoLibraryWithPHPicker:_pickerViewController]; |
| } |
| } |
| |
| - (void)launchUIImagePickerWithSource:(nonnull FLTSourceSpecification *)source |
| context:(nonnull FLTImagePickerMethodCallContext *)context { |
| UIImagePickerController *imagePickerController = [self createImagePickerController]; |
| imagePickerController.modalPresentationStyle = UIModalPresentationCurrentContext; |
| imagePickerController.delegate = self; |
| if (context.includeVideo) { |
| imagePickerController.mediaTypes = @[ (NSString *)kUTTypeImage, (NSString *)kUTTypeMovie ]; |
| |
| } else { |
| imagePickerController.mediaTypes = @[ (NSString *)kUTTypeImage ]; |
| } |
| self.callContext = context; |
| |
| switch (source.type) { |
| case FLTSourceTypeCamera: |
| [self checkCameraAuthorizationWithImagePicker:imagePickerController |
| camera:[self cameraDeviceForSource:source]]; |
| break; |
| case FLTSourceTypeGallery: |
| if (context.requestFullMetadata) { |
| [self checkPhotoAuthorizationWithImagePicker:imagePickerController]; |
| } else { |
| [self showPhotoLibraryWithImagePicker:imagePickerController]; |
| } |
| break; |
| default: |
| [self sendCallResultWithError:[FlutterError errorWithCode:@"invalid_source" |
| message:@"Invalid image source." |
| details:nil]]; |
| break; |
| } |
| } |
| |
| #pragma mark - FLTImagePickerApi |
| |
| - (void)pickImageWithSource:(nonnull FLTSourceSpecification *)source |
| maxSize:(nonnull FLTMaxSize *)maxSize |
| quality:(nullable NSNumber *)imageQuality |
| fullMetadata:(NSNumber *)fullMetadata |
| completion: |
| (nonnull void (^)(NSString *_Nullable, FlutterError *_Nullable))completion { |
| [self cancelInProgressCall]; |
| FLTImagePickerMethodCallContext *context = [[FLTImagePickerMethodCallContext alloc] |
| initWithResult:^void(NSArray<NSString *> *paths, FlutterError *error) { |
| if (paths && paths.count != 1) { |
| completion(nil, [FlutterError errorWithCode:@"invalid_result" |
| message:@"Incorrect number of return paths provided" |
| details:nil]); |
| } |
| completion(paths.firstObject, error); |
| }]; |
| context.maxSize = maxSize; |
| context.imageQuality = imageQuality; |
| context.maxImageCount = 1; |
| context.requestFullMetadata = [fullMetadata boolValue]; |
| |
| if (source.type == FLTSourceTypeGallery) { // Capture is not possible with PHPicker |
| if (@available(iOS 14, *)) { |
| [self launchPHPickerWithContext:context]; |
| } else { |
| [self launchUIImagePickerWithSource:source context:context]; |
| } |
| } else { |
| [self launchUIImagePickerWithSource:source context:context]; |
| } |
| } |
| |
| - (void)pickMultiImageWithMaxSize:(nonnull FLTMaxSize *)maxSize |
| quality:(nullable NSNumber *)imageQuality |
| fullMetadata:(NSNumber *)fullMetadata |
| completion:(nonnull void (^)(NSArray<NSString *> *_Nullable, |
| FlutterError *_Nullable))completion { |
| FLTImagePickerMethodCallContext *context = |
| [[FLTImagePickerMethodCallContext alloc] initWithResult:completion]; |
| context.maxSize = maxSize; |
| context.imageQuality = imageQuality; |
| context.requestFullMetadata = [fullMetadata boolValue]; |
| |
| if (@available(iOS 14, *)) { |
| [self launchPHPickerWithContext:context]; |
| } else { |
| // Camera is ignored for gallery mode, so the value here is arbitrary. |
| [self launchUIImagePickerWithSource:[FLTSourceSpecification makeWithType:FLTSourceTypeGallery |
| camera:FLTSourceCameraRear] |
| context:context]; |
| } |
| } |
| |
| - (void)pickMediaWithMediaSelectionOptions:(nonnull FLTMediaSelectionOptions *)mediaSelectionOptions |
| completion:(nonnull void (^)(NSArray<NSString *> *_Nullable, |
| FlutterError *_Nullable))completion { |
| FLTImagePickerMethodCallContext *context = |
| [[FLTImagePickerMethodCallContext alloc] initWithResult:completion]; |
| context.maxSize = [mediaSelectionOptions maxSize]; |
| context.imageQuality = [mediaSelectionOptions imageQuality]; |
| context.requestFullMetadata = [mediaSelectionOptions requestFullMetadata]; |
| context.includeVideo = YES; |
| if (![[mediaSelectionOptions allowMultiple] boolValue]) { |
| context.maxImageCount = 1; |
| } |
| |
| if (@available(iOS 14, *)) { |
| [self launchPHPickerWithContext:context]; |
| } else { |
| // Camera is ignored for gallery mode, so the value here is arbitrary. |
| [self launchUIImagePickerWithSource:[FLTSourceSpecification makeWithType:FLTSourceTypeGallery |
| camera:FLTSourceCameraRear] |
| context:context]; |
| } |
| } |
| |
| - (void)pickVideoWithSource:(nonnull FLTSourceSpecification *)source |
| maxDuration:(nullable NSNumber *)maxDurationSeconds |
| completion: |
| (nonnull void (^)(NSString *_Nullable, FlutterError *_Nullable))completion { |
| FLTImagePickerMethodCallContext *context = [[FLTImagePickerMethodCallContext alloc] |
| initWithResult:^void(NSArray<NSString *> *paths, FlutterError *error) { |
| if (paths && paths.count != 1) { |
| completion(nil, [FlutterError errorWithCode:@"invalid_result" |
| message:@"Incorrect number of return paths provided" |
| details:nil]); |
| } |
| completion(paths.firstObject, error); |
| }]; |
| context.maxImageCount = 1; |
| |
| UIImagePickerController *imagePickerController = [self createImagePickerController]; |
| imagePickerController.modalPresentationStyle = UIModalPresentationCurrentContext; |
| imagePickerController.delegate = self; |
| imagePickerController.mediaTypes = @[ |
| (NSString *)kUTTypeMovie, (NSString *)kUTTypeAVIMovie, (NSString *)kUTTypeVideo, |
| (NSString *)kUTTypeMPEG4 |
| ]; |
| imagePickerController.videoQuality = UIImagePickerControllerQualityTypeHigh; |
| |
| if (maxDurationSeconds) { |
| NSTimeInterval max = [maxDurationSeconds doubleValue]; |
| imagePickerController.videoMaximumDuration = max; |
| } |
| |
| self.callContext = context; |
| |
| switch (source.type) { |
| case FLTSourceTypeCamera: |
| [self checkCameraAuthorizationWithImagePicker:imagePickerController |
| camera:[self cameraDeviceForSource:source]]; |
| break; |
| case FLTSourceTypeGallery: |
| [self checkPhotoAuthorizationWithImagePicker:imagePickerController]; |
| break; |
| default: |
| [self sendCallResultWithError:[FlutterError errorWithCode:@"invalid_source" |
| message:@"Invalid video source." |
| details:nil]]; |
| break; |
| } |
| } |
| |
| #pragma mark - |
| |
| /** |
| * If a call is still in progress, cancels it by returning an error and then clearing state. |
| * |
| * TODO(stuartmorgan): Eliminate this, and instead track context per image picker (e.g., using |
| * associated objects). |
| */ |
| - (void)cancelInProgressCall { |
| if (self.callContext) { |
| [self sendCallResultWithError:[FlutterError errorWithCode:@"multiple_request" |
| message:@"Cancelled by a second request" |
| details:nil]]; |
| self.callContext = nil; |
| } |
| } |
| |
| - (void)showCamera:(UIImagePickerControllerCameraDevice)device |
| withImagePicker:(UIImagePickerController *)imagePickerController { |
| @synchronized(self) { |
| if (imagePickerController.beingPresented) { |
| return; |
| } |
| } |
| // Camera is not available on simulators |
| if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera] && |
| [UIImagePickerController isCameraDeviceAvailable:device]) { |
| imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera; |
| imagePickerController.cameraDevice = device; |
| [[self viewControllerWithWindow:nil] presentViewController:imagePickerController |
| animated:YES |
| completion:nil]; |
| } else { |
| UIAlertController *cameraErrorAlert = [UIAlertController |
| alertControllerWithTitle:NSLocalizedString(@"Error", @"Alert title when camera unavailable") |
| message:NSLocalizedString(@"Camera not available.", |
| "Alert message when camera unavailable") |
| preferredStyle:UIAlertControllerStyleAlert]; |
| [cameraErrorAlert |
| addAction:[UIAlertAction actionWithTitle:NSLocalizedString( |
| @"OK", @"Alert button when camera unavailable") |
| style:UIAlertActionStyleDefault |
| handler:^(UIAlertAction *action){ |
| }]]; |
| [[self viewControllerWithWindow:nil] presentViewController:cameraErrorAlert |
| animated:YES |
| completion:nil]; |
| [self sendCallResultWithSavedPathList:nil]; |
| } |
| } |
| |
| - (void)checkCameraAuthorizationWithImagePicker:(UIImagePickerController *)imagePickerController |
| camera:(UIImagePickerControllerCameraDevice)device { |
| AVAuthorizationStatus status = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo]; |
| |
| switch (status) { |
| case AVAuthorizationStatusAuthorized: |
| [self showCamera:device withImagePicker:imagePickerController]; |
| break; |
| case AVAuthorizationStatusNotDetermined: { |
| [AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo |
| completionHandler:^(BOOL granted) { |
| dispatch_async(dispatch_get_main_queue(), ^{ |
| if (granted) { |
| [self showCamera:device withImagePicker:imagePickerController]; |
| } else { |
| [self errorNoCameraAccess:AVAuthorizationStatusDenied]; |
| } |
| }); |
| }]; |
| break; |
| } |
| case AVAuthorizationStatusDenied: |
| case AVAuthorizationStatusRestricted: |
| default: |
| [self errorNoCameraAccess:status]; |
| break; |
| } |
| } |
| |
| - (void)checkPhotoAuthorizationWithImagePicker:(UIImagePickerController *)imagePickerController { |
| PHAuthorizationStatus status = [PHPhotoLibrary authorizationStatus]; |
| switch (status) { |
| case PHAuthorizationStatusNotDetermined: { |
| [PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus status) { |
| dispatch_async(dispatch_get_main_queue(), ^{ |
| if (status == PHAuthorizationStatusAuthorized) { |
| [self showPhotoLibraryWithImagePicker:imagePickerController]; |
| } else { |
| [self errorNoPhotoAccess:status]; |
| } |
| }); |
| }]; |
| break; |
| } |
| case PHAuthorizationStatusAuthorized: |
| [self showPhotoLibraryWithImagePicker:imagePickerController]; |
| break; |
| case PHAuthorizationStatusDenied: |
| case PHAuthorizationStatusRestricted: |
| default: |
| [self errorNoPhotoAccess:status]; |
| break; |
| } |
| } |
| |
| - (void)checkPhotoAuthorizationForAccessLevel API_AVAILABLE(ios(14)) { |
| PHAccessLevel requestedAccessLevel = PHAccessLevelReadWrite; |
| PHAuthorizationStatus status = |
| [PHPhotoLibrary authorizationStatusForAccessLevel:requestedAccessLevel]; |
| switch (status) { |
| case PHAuthorizationStatusNotDetermined: { |
| [PHPhotoLibrary |
| requestAuthorizationForAccessLevel:requestedAccessLevel |
| handler:^(PHAuthorizationStatus status) { |
| dispatch_async(dispatch_get_main_queue(), ^{ |
| if (status == PHAuthorizationStatusAuthorized) { |
| [self |
| showPhotoLibraryWithPHPicker:self-> |
| _pickerViewController]; |
| } else if (status == PHAuthorizationStatusLimited) { |
| [self |
| showPhotoLibraryWithPHPicker:self-> |
| _pickerViewController]; |
| } else { |
| [self errorNoPhotoAccess:status]; |
| } |
| }); |
| }]; |
| break; |
| } |
| case PHAuthorizationStatusAuthorized: |
| case PHAuthorizationStatusLimited: |
| [self showPhotoLibraryWithPHPicker:_pickerViewController]; |
| break; |
| case PHAuthorizationStatusDenied: |
| case PHAuthorizationStatusRestricted: |
| default: |
| [self errorNoPhotoAccess:status]; |
| break; |
| } |
| } |
| |
| - (void)errorNoCameraAccess:(AVAuthorizationStatus)status { |
| switch (status) { |
| case AVAuthorizationStatusRestricted: |
| [self sendCallResultWithError:[FlutterError |
| errorWithCode:@"camera_access_restricted" |
| message:@"The user is not allowed to use the camera." |
| details:nil]]; |
| break; |
| case AVAuthorizationStatusDenied: |
| default: |
| [self sendCallResultWithError:[FlutterError |
| errorWithCode:@"camera_access_denied" |
| message:@"The user did not allow camera access." |
| details:nil]]; |
| break; |
| } |
| } |
| |
| - (void)errorNoPhotoAccess:(PHAuthorizationStatus)status { |
| switch (status) { |
| case PHAuthorizationStatusRestricted: |
| [self sendCallResultWithError:[FlutterError |
| errorWithCode:@"photo_access_restricted" |
| message:@"The user is not allowed to use the photo." |
| details:nil]]; |
| break; |
| case PHAuthorizationStatusDenied: |
| default: |
| [self sendCallResultWithError:[FlutterError |
| errorWithCode:@"photo_access_denied" |
| message:@"The user did not allow photo access." |
| details:nil]]; |
| break; |
| } |
| } |
| |
| - (void)showPhotoLibraryWithPHPicker:(PHPickerViewController *)pickerViewController |
| API_AVAILABLE(ios(14)) { |
| [[self viewControllerWithWindow:nil] presentViewController:pickerViewController |
| animated:YES |
| completion:nil]; |
| } |
| |
| - (void)showPhotoLibraryWithImagePicker:(UIImagePickerController *)imagePickerController { |
| imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; |
| [[self viewControllerWithWindow:nil] presentViewController:imagePickerController |
| animated:YES |
| completion:nil]; |
| } |
| |
| - (NSNumber *)getDesiredImageQuality:(NSNumber *)imageQuality { |
| if (![imageQuality isKindOfClass:[NSNumber class]]) { |
| imageQuality = @1; |
| } else if (imageQuality.intValue < 0 || imageQuality.intValue > 100) { |
| imageQuality = @1; |
| } else { |
| imageQuality = @([imageQuality floatValue] / 100); |
| } |
| return imageQuality; |
| } |
| |
| #pragma mark - UIAdaptivePresentationControllerDelegate |
| |
| - (void)presentationControllerDidDismiss:(UIPresentationController *)presentationController { |
| [self sendCallResultWithSavedPathList:nil]; |
| } |
| |
| #pragma mark - PHPickerViewControllerDelegate |
| |
| - (void)picker:(PHPickerViewController *)picker |
| didFinishPicking:(NSArray<PHPickerResult *> *)results API_AVAILABLE(ios(14)) { |
| [picker dismissViewControllerAnimated:YES completion:nil]; |
| if (results.count == 0) { |
| [self sendCallResultWithSavedPathList:nil]; |
| return; |
| } |
| __block NSOperationQueue *saveQueue = [[NSOperationQueue alloc] init]; |
| saveQueue.name = @"Flutter Save Image Queue"; |
| saveQueue.qualityOfService = NSQualityOfServiceUserInitiated; |
| |
| FLTImagePickerMethodCallContext *currentCallContext = self.callContext; |
| NSNumber *maxWidth = currentCallContext.maxSize.width; |
| NSNumber *maxHeight = currentCallContext.maxSize.height; |
| NSNumber *imageQuality = currentCallContext.imageQuality; |
| NSNumber *desiredImageQuality = [self getDesiredImageQuality:imageQuality]; |
| BOOL requestFullMetadata = currentCallContext.requestFullMetadata; |
| NSMutableArray *pathList = [[NSMutableArray alloc] initWithCapacity:results.count]; |
| __block FlutterError *saveError = nil; |
| __weak typeof(self) weakSelf = self; |
| // This operation will be executed on the main queue after |
| // all selected files have been saved. |
| NSBlockOperation *sendListOperation = [NSBlockOperation blockOperationWithBlock:^{ |
| if (saveError != nil) { |
| [weakSelf sendCallResultWithError:saveError]; |
| } else { |
| [weakSelf sendCallResultWithSavedPathList:pathList]; |
| } |
| // Retain queue until here. |
| saveQueue = nil; |
| }]; |
| |
| [results enumerateObjectsUsingBlock:^(PHPickerResult *result, NSUInteger index, BOOL *stop) { |
| // NSNull means it hasn't saved yet. |
| [pathList addObject:[NSNull null]]; |
| FLTPHPickerSaveImageToPathOperation *saveOperation = |
| [[FLTPHPickerSaveImageToPathOperation alloc] |
| initWithResult:result |
| maxHeight:maxHeight |
| maxWidth:maxWidth |
| desiredImageQuality:desiredImageQuality |
| fullMetadata:requestFullMetadata |
| savedPathBlock:^(NSString *savedPath, FlutterError *error) { |
| if (savedPath != nil) { |
| pathList[index] = savedPath; |
| } else { |
| saveError = error; |
| } |
| }]; |
| [sendListOperation addDependency:saveOperation]; |
| [saveQueue addOperation:saveOperation]; |
| }]; |
| |
| // Schedule the final Flutter callback on the main queue |
| // to be run after all images have been saved. |
| [NSOperationQueue.mainQueue addOperation:sendListOperation]; |
| } |
| |
| #pragma mark - UIImagePickerControllerDelegate |
| |
| - (void)imagePickerController:(UIImagePickerController *)picker |
| didFinishPickingMediaWithInfo:(NSDictionary<NSString *, id> *)info { |
| NSURL *videoURL = info[UIImagePickerControllerMediaURL]; |
| [picker dismissViewControllerAnimated:YES completion:nil]; |
| // The method dismissViewControllerAnimated does not immediately prevent |
| // further didFinishPickingMediaWithInfo invocations. A nil check is necessary |
| // to prevent below code to be unwantly executed multiple times and cause a |
| // crash. |
| if (!self.callContext) { |
| return; |
| } |
| if (videoURL != nil) { |
| if (@available(iOS 13.0, *)) { |
| NSURL *destination = [FLTImagePickerPhotoAssetUtil saveVideoFromURL:videoURL]; |
| if (destination == nil) { |
| [self sendCallResultWithError:[FlutterError |
| errorWithCode:@"flutter_image_picker_copy_video_error" |
| message:@"Could not cache the video file." |
| details:nil]]; |
| return; |
| } |
| |
| videoURL = destination; |
| } |
| [self sendCallResultWithSavedPathList:@[ videoURL.path ]]; |
| } else { |
| UIImage *image = info[UIImagePickerControllerEditedImage]; |
| if (image == nil) { |
| image = info[UIImagePickerControllerOriginalImage]; |
| } |
| NSNumber *maxWidth = self.callContext.maxSize.width; |
| NSNumber *maxHeight = self.callContext.maxSize.height; |
| NSNumber *imageQuality = self.callContext.imageQuality; |
| NSNumber *desiredImageQuality = [self getDesiredImageQuality:imageQuality]; |
| |
| PHAsset *originalAsset; |
| if (_callContext.requestFullMetadata) { |
| // Full metadata are available only in PHAsset, which requires gallery permission. |
| originalAsset = [FLTImagePickerPhotoAssetUtil getAssetFromImagePickerInfo:info]; |
| } |
| |
| if (maxWidth != nil || maxHeight != nil) { |
| image = [FLTImagePickerImageUtil scaledImage:image |
| maxWidth:maxWidth |
| maxHeight:maxHeight |
| isMetadataAvailable:YES]; |
| } |
| |
| if (!originalAsset) { |
| // Image picked without an original asset (e.g. User took a photo directly) |
| [self saveImageWithPickerInfo:info image:image imageQuality:desiredImageQuality]; |
| } else { |
| void (^resultHandler)(NSData *imageData, NSString *dataUTI, NSDictionary *info) = ^( |
| NSData *_Nullable imageData, NSString *_Nullable dataUTI, NSDictionary *_Nullable info) { |
| // maxWidth and maxHeight are used only for GIF images. |
| [self saveImageWithOriginalImageData:imageData |
| image:image |
| maxWidth:maxWidth |
| maxHeight:maxHeight |
| imageQuality:desiredImageQuality]; |
| }; |
| if (@available(iOS 13.0, *)) { |
| [[PHImageManager defaultManager] |
| requestImageDataAndOrientationForAsset:originalAsset |
| options:nil |
| resultHandler:^(NSData *_Nullable imageData, |
| NSString *_Nullable dataUTI, |
| CGImagePropertyOrientation orientation, |
| NSDictionary *_Nullable info) { |
| resultHandler(imageData, dataUTI, info); |
| }]; |
| } else { |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wdeprecated-declarations" |
| [[PHImageManager defaultManager] |
| requestImageDataForAsset:originalAsset |
| options:nil |
| resultHandler:^(NSData *_Nullable imageData, NSString *_Nullable dataUTI, |
| UIImageOrientation orientation, |
| NSDictionary *_Nullable info) { |
| resultHandler(imageData, dataUTI, info); |
| }]; |
| #pragma clang diagnostic pop |
| } |
| } |
| } |
| } |
| |
| - (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker { |
| [picker dismissViewControllerAnimated:YES completion:nil]; |
| [self sendCallResultWithSavedPathList:nil]; |
| } |
| |
| #pragma mark - |
| |
| - (void)saveImageWithOriginalImageData:(NSData *)originalImageData |
| image:(UIImage *)image |
| maxWidth:(NSNumber *)maxWidth |
| maxHeight:(NSNumber *)maxHeight |
| imageQuality:(NSNumber *)imageQuality { |
| NSString *savedPath = |
| [FLTImagePickerPhotoAssetUtil saveImageWithOriginalImageData:originalImageData |
| image:image |
| maxWidth:maxWidth |
| maxHeight:maxHeight |
| imageQuality:imageQuality]; |
| [self sendCallResultWithSavedPathList:@[ savedPath ]]; |
| } |
| |
| - (void)saveImageWithPickerInfo:(NSDictionary *)info |
| image:(UIImage *)image |
| imageQuality:(NSNumber *)imageQuality { |
| NSString *savedPath = [FLTImagePickerPhotoAssetUtil saveImageWithPickerInfo:info |
| image:image |
| imageQuality:imageQuality]; |
| [self sendCallResultWithSavedPathList:@[ savedPath ]]; |
| } |
| |
| - (void)sendCallResultWithSavedPathList:(nullable NSArray *)pathList { |
| if (!self.callContext) { |
| return; |
| } |
| |
| if ([pathList containsObject:[NSNull null]]) { |
| self.callContext.result(nil, [FlutterError errorWithCode:@"create_error" |
| message:@"pathList's items should not be null" |
| details:nil]); |
| } else { |
| self.callContext.result(pathList, nil); |
| } |
| self.callContext = nil; |
| } |
| |
| /** |
| * Sends the given error via `callContext.result` as the result of the original platform channel |
| * method call, clearing the in-progress call state. |
| * |
| * @param error The error to return. |
| */ |
| - (void)sendCallResultWithError:(FlutterError *)error { |
| if (!self.callContext) { |
| return; |
| } |
| self.callContext.result(nil, error); |
| self.callContext = nil; |
| } |
| |
| @end |
