Replace ALAssets* with PHPhoto* in RCTCameraRoll
Summary: Replaced all deprecated ALAssets* references to roughly equivalent PHPhoto* references in RCTCameraRoll library. There are still some minor inconsistencies between iOS/Android and documentation that existed prior to this diff that need to be resolved after this. Reviewed By: fkgozali, PeteTheHeat Differential Revision: D13513777 fbshipit-source-id: 3f0c4ae259823fae78eba875a6c259733715ab56
This commit is contained in:
Joshua Gross
Facebook Github Bot
parent
34ea65e3d9
commit
8ce9b47626
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@ -8,17 +8,8 @@
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#import <React/RCTBridge.h>
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#import <React/RCTURLRequestHandler.h>
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@class ALAssetsLibrary;
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@class PHPhotoLibrary;
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@interface RCTAssetsLibraryRequestHandler : NSObject <RCTURLRequestHandler>
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@end
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@interface RCTBridge (RCTAssetsLibraryImageLoader)
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/**
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* The shared asset library instance.
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*/
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@property (nonatomic, readonly) ALAssetsLibrary *assetsLibrary;
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@end
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@ -11,41 +11,26 @@
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#import <dlfcn.h>
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#import <objc/runtime.h>
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#import <AssetsLibrary/AssetsLibrary.h>
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#import <Photos/Photos.h>
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#import <MobileCoreServices/MobileCoreServices.h>
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#import <React/RCTBridge.h>
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#import <React/RCTUtils.h>
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@implementation RCTAssetsLibraryRequestHandler
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{
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ALAssetsLibrary *_assetsLibrary;
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}
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RCT_EXPORT_MODULE()
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@synthesize bridge = _bridge;
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static Class _ALAssetsLibrary = nil;
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static void ensureAssetsLibLoaded(void)
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{
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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void * handle = dlopen("/System/Library/Frameworks/AssetsLibrary.framework/AssetsLibrary", RTLD_LAZY);
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#pragma unused(handle)
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_ALAssetsLibrary = objc_getClass("ALAssetsLibrary");
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});
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}
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- (ALAssetsLibrary *)assetsLibrary
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{
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ensureAssetsLibLoaded();
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return _assetsLibrary ?: (_assetsLibrary = [_ALAssetsLibrary new]);
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}
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#pragma mark - RCTURLRequestHandler
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- (BOOL)canHandleRequest:(NSURLRequest *)request
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{
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return [request.URL.scheme caseInsensitiveCompare:@"assets-library"] == NSOrderedSame;
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if (![PHAsset class]) {
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return NO;
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}
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return [request.URL.scheme caseInsensitiveCompare:@"assets-library"] == NSOrderedSame
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|| [request.URL.scheme caseInsensitiveCompare:@"ph"] == NSOrderedSame;
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}
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- (id)sendRequest:(NSURLRequest *)request
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@ -56,55 +41,72 @@ static void ensureAssetsLibLoaded(void)
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atomic_store(&cancelled, YES);
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};
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[[self assetsLibrary] assetForURL:request.URL resultBlock:^(ALAsset *asset) {
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if (atomic_load(&cancelled)) {
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return;
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if (!request.URL) {
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NSString *const msg = [NSString stringWithFormat:@"Cannot send request without URL"];
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[delegate URLRequest:cancellationBlock didCompleteWithError:RCTErrorWithMessage(msg)];
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return cancellationBlock;
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}
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if (asset) {
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ALAssetRepresentation *representation = [asset defaultRepresentation];
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NSInteger length = (NSInteger)representation.size;
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CFStringRef MIMEType = UTTypeCopyPreferredTagWithClass((__bridge CFStringRef _Nonnull)(representation.UTI), kUTTagClassMIMEType);
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NSURLResponse *response =
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[[NSURLResponse alloc] initWithURL:request.URL
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MIMEType:(__bridge NSString *)(MIMEType)
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expectedContentLength:length
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textEncodingName:nil];
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[delegate URLRequest:cancellationBlock didReceiveResponse:response];
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NSError *error = nil;
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uint8_t *buffer = (uint8_t *)malloc((size_t)length);
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if ([representation getBytes:buffer
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fromOffset:0
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length:length
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error:&error]) {
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NSData *data = [[NSData alloc] initWithBytesNoCopy:buffer
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length:length
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freeWhenDone:YES];
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[delegate URLRequest:cancellationBlock didReceiveData:data];
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[delegate URLRequest:cancellationBlock didCompleteWithError:nil];
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PHFetchResult<PHAsset *> *fetchResult;
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if ([request.URL.scheme caseInsensitiveCompare:@"ph"] == NSOrderedSame) {
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// Fetch assets using PHAsset localIdentifier (recommended)
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NSString *const localIdentifier = [request.URL.absoluteString substringFromIndex:@"ph://".length];
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fetchResult = [PHAsset fetchAssetsWithLocalIdentifiers:@[localIdentifier] options:nil];
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} else if ([request.URL.scheme caseInsensitiveCompare:@"assets-library"] == NSOrderedSame) {
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// This is the older, deprecated way of fetching assets from assets-library
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// using the "assets-library://" protocol
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fetchResult = [PHAsset fetchAssetsWithALAssetURLs:@[request.URL] options:nil];
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} else {
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free(buffer);
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[delegate URLRequest:cancellationBlock didCompleteWithError:error];
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NSString *const msg = [NSString stringWithFormat:@"Cannot send request with unknown protocol: %@", request.URL];
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[delegate URLRequest:cancellationBlock didCompleteWithError:RCTErrorWithMessage(msg)];
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return cancellationBlock;
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}
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} else {
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if (![fetchResult firstObject]) {
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NSString *errorMessage = [NSString stringWithFormat:@"Failed to load asset"
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" at URL %@ with no error message.", request.URL];
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NSError *error = RCTErrorWithMessage(errorMessage);
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[delegate URLRequest:cancellationBlock didCompleteWithError:error];
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return cancellationBlock;
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}
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} failureBlock:^(NSError *loadError) {
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if (atomic_load(&cancelled)) {
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return cancellationBlock;
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}
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PHAsset *const _Nonnull asset = [fetchResult firstObject];
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// By default, allow downloading images from iCloud
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PHImageRequestOptions *const requestOptions = [PHImageRequestOptions new];
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requestOptions.networkAccessAllowed = YES;
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[[PHImageManager defaultManager] requestImageDataForAsset:asset
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options:requestOptions
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resultHandler:^(NSData * _Nullable imageData,
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NSString * _Nullable dataUTI,
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UIImageOrientation orientation,
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NSDictionary * _Nullable info) {
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NSError *const error = [info objectForKey:PHImageErrorKey];
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if (error) {
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[delegate URLRequest:cancellationBlock didCompleteWithError:error];
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return;
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}
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[delegate URLRequest:cancellationBlock didCompleteWithError:loadError];
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NSInteger const length = [imageData length];
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CFStringRef const dataUTIStringRef = (__bridge CFStringRef _Nonnull)(dataUTI);
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CFStringRef const mimeType = UTTypeCopyPreferredTagWithClass(dataUTIStringRef, kUTTagClassMIMEType);
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NSURLResponse *const response = [[NSURLResponse alloc] initWithURL:request.URL
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MIMEType:(__bridge NSString *)(mimeType)
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expectedContentLength:length
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textEncodingName:nil];
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CFRelease(mimeType);
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[delegate URLRequest:cancellationBlock didReceiveResponse:response];
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[delegate URLRequest:cancellationBlock didReceiveData:imageData];
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[delegate URLRequest:cancellationBlock didCompleteWithError:nil];
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}];
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return cancellationBlock;
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@ -116,12 +118,3 @@ static void ensureAssetsLibLoaded(void)
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}
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@end
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@implementation RCTBridge (RCTAssetsLibraryImageLoader)
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- (ALAssetsLibrary *)assetsLibrary
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{
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return [[self moduleForClass:[RCTAssetsLibraryRequestHandler class]] assetsLibrary];
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}
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@end
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@ -5,18 +5,18 @@
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* LICENSE file in the root directory of this source tree.
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*/
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#import <AssetsLibrary/AssetsLibrary.h>
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#import <Photos/Photos.h>
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#import <React/RCTBridgeModule.h>
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#import <React/RCTConvert.h>
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@interface RCTConvert (ALAssetGroup)
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@interface RCTConvert (PHFetchOptions)
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+ (ALAssetsGroupType)ALAssetsGroupType:(id)json;
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+ (ALAssetsFilter *)ALAssetsFilter:(id)json;
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+ (PHFetchOptions *)PHFetchOptionsFromMediaType:(NSString *)mediaType;
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@end
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@interface RCTCameraRollManager : NSObject <RCTBridgeModule>
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@end
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@ -13,6 +13,7 @@
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#import <Photos/Photos.h>
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#import <dlfcn.h>
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#import <objc/runtime.h>
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#import <CoreServices/UTType.h>
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#import <React/RCTBridge.h>
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#import <React/RCTConvert.h>
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@ -22,85 +23,46 @@
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#import "RCTAssetsLibraryRequestHandler.h"
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@implementation RCTConvert (ALAssetGroup)
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@implementation RCTConvert (PHAssetCollectionSubtype)
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RCT_ENUM_CONVERTER(ALAssetsGroupType, (@{
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RCT_ENUM_CONVERTER(PHAssetCollectionSubtype, (@{
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@"album": @(PHAssetCollectionSubtypeAny),
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@"all": @(PHAssetCollectionSubtypeAny),
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@"event": @(PHAssetCollectionSubtypeAlbumSyncedEvent),
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@"faces": @(PHAssetCollectionSubtypeAlbumSyncedFaces),
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@"library": @(PHAssetCollectionSubtypeSmartAlbumUserLibrary),
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@"photo-stream": @(PHAssetCollectionSubtypeAlbumMyPhotoStream), // incorrect, but legacy
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@"photostream": @(PHAssetCollectionSubtypeAlbumMyPhotoStream),
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@"saved-photos": @(PHAssetCollectionSubtypeAny), // incorrect, but legacy
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@"savedphotos": @(PHAssetCollectionSubtypeAny), // This was ALAssetsGroupSavedPhotos, seems to have no direct correspondence in PHAssetCollectionSubtype
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}), PHAssetCollectionSubtypeAny, integerValue)
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// New values
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@"album": @(ALAssetsGroupAlbum),
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@"all": @(ALAssetsGroupAll),
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@"event": @(ALAssetsGroupEvent),
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@"faces": @(ALAssetsGroupFaces),
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@"library": @(ALAssetsGroupLibrary),
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@"photo-stream": @(ALAssetsGroupPhotoStream),
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@"saved-photos": @(ALAssetsGroupSavedPhotos),
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// Legacy values
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@"Album": @(ALAssetsGroupAlbum),
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@"All": @(ALAssetsGroupAll),
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@"Event": @(ALAssetsGroupEvent),
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@"Faces": @(ALAssetsGroupFaces),
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@"Library": @(ALAssetsGroupLibrary),
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@"PhotoStream": @(ALAssetsGroupPhotoStream),
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@"SavedPhotos": @(ALAssetsGroupSavedPhotos),
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@end
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}), ALAssetsGroupSavedPhotos, integerValue)
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@implementation RCTConvert (PHFetchOptions)
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static Class _ALAssetsFilter = nil;
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static NSString *_ALAssetsGroupPropertyName = nil;
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static NSString *_ALAssetPropertyAssetURL = nil;
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static NSString *_ALAssetPropertyLocation = nil;
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static NSString *_ALAssetPropertyDate = nil;
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static NSString *_ALAssetPropertyType = nil;
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static NSString *_ALAssetPropertyDuration = nil;
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static NSString *_ALAssetTypeVideo = nil;
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static NSString *lookupNSString(void * handle, const char * name)
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+ (PHFetchOptions *)PHFetchOptionsFromMediaType:(NSString *)mediaType
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{
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void ** sym = dlsym(handle, name);
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return (__bridge NSString *)(sym ? *sym : nil);
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}
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static void ensureAssetsLibLoaded(void)
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{
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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void * handle = dlopen("/System/Library/Frameworks/AssetsLibrary.framework/AssetsLibrary", RTLD_LAZY);
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RCTAssert(handle != NULL, @"Unable to load AssetsLibrary.framework.");
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_ALAssetsFilter = objc_getClass("ALAssetsFilter");
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_ALAssetsGroupPropertyName = lookupNSString(handle, "ALAssetsGroupPropertyName");
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_ALAssetPropertyAssetURL = lookupNSString(handle, "ALAssetPropertyAssetURL");
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_ALAssetPropertyLocation = lookupNSString(handle, "ALAssetPropertyLocation");
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_ALAssetPropertyDate = lookupNSString(handle, "ALAssetPropertyDate");
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_ALAssetPropertyType = lookupNSString(handle, "ALAssetPropertyType");
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_ALAssetPropertyDuration = lookupNSString(handle, "ALAssetPropertyDuration");
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_ALAssetTypeVideo = lookupNSString(handle, "ALAssetTypeVideo");
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});
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}
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// This is not exhaustive in terms of supported media type predicates; more can be added in the future
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NSString *const lowercase = [mediaType lowercaseString];
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+ (ALAssetsFilter *)ALAssetsFilter:(id)json
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{
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static NSDictionary<NSString *, ALAssetsFilter *> *options;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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ensureAssetsLibLoaded();
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options = @{
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// New values
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@"photos": [_ALAssetsFilter allPhotos],
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@"videos": [_ALAssetsFilter allVideos],
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@"all": [_ALAssetsFilter allAssets],
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// Legacy values
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@"Photos": [_ALAssetsFilter allPhotos],
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@"Videos": [_ALAssetsFilter allVideos],
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@"All": [_ALAssetsFilter allAssets],
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};
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});
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ALAssetsFilter *filter = options[json ?: @"photos"];
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if (!filter) {
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if ([lowercase isEqualToString:@"photos"]) {
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PHFetchOptions *const options = [PHFetchOptions new];
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options.predicate = [NSPredicate predicateWithFormat:@"mediaType = %d", PHAssetMediaTypeImage];
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return options;
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} else if ([lowercase isEqualToString:@"videos"]) {
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PHFetchOptions *const options = [PHFetchOptions new];
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options.predicate = [NSPredicate predicateWithFormat:@"mediaType = %d", PHAssetMediaTypeVideo];
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return options;
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} else {
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if (![lowercase isEqualToString:@"all"]) {
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RCTLogError(@"Invalid filter option: '%@'. Expected one of 'photos',"
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"'videos' or 'all'.", json);
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"'videos' or 'all'.", mediaType);
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}
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// This case includes the "all" mediatype
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return nil;
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}
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return filter ?: [_ALAssetsFilter allPhotos];
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}
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@end
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@ -111,43 +73,61 @@ RCT_EXPORT_MODULE()
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@synthesize bridge = _bridge;
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static NSString *const kErrorUnableToLoad = @"E_UNABLE_TO_LOAD";
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static NSString *const kErrorUnableToSave = @"E_UNABLE_TO_SAVE";
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static NSString *const kErrorUnableToLoad = @"E_UNABLE_TO_LOAD";
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RCT_EXPORT_METHOD(saveToCameraRoll:(NSURLRequest *)request
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type:(NSString *)type
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resolve:(RCTPromiseResolveBlock)resolve
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reject:(RCTPromiseRejectBlock)reject)
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{
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__block PHObjectPlaceholder *placeholder;
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// We load images and videos differently.
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// Images have many custom loaders which can load images from ALAssetsLibrary URLs, PHPhotoLibrary
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// URLs, `data:` URIs, etc. Video URLs are passed directly through for now; it may be nice to support
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// more ways of loading videos in the future.
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__block NSURL *inputURI = nil;
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__block UIImage *inputImage = nil;
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void (^saveBlock)(void) = ^void() {
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// performChanges and the completionHandler are called on
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// arbitrary threads, not the main thread - this is safe
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// for now since all JS is queued and executed on a single thread.
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// We should reevaluate this if that assumption changes.
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[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
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PHAssetChangeRequest *changeRequest;
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// Defaults to "photo". `type` is an optional param.
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if ([type isEqualToString:@"video"]) {
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// It's unclear if writeVideoAtPathToSavedPhotosAlbum is thread-safe
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dispatch_async(dispatch_get_main_queue(), ^{
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[self->_bridge.assetsLibrary writeVideoAtPathToSavedPhotosAlbum:request.URL completionBlock:^(NSURL *assetURL, NSError *saveError) {
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if (saveError) {
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reject(kErrorUnableToSave, nil, saveError);
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changeRequest = [PHAssetChangeRequest creationRequestForAssetFromVideoAtFileURL:inputURI];
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} else {
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resolve(assetURL.absoluteString);
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changeRequest = [PHAssetChangeRequest creationRequestForAssetFromImage:inputImage];
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}
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placeholder = [changeRequest placeholderForCreatedAsset];
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} completionHandler:^(BOOL success, NSError * _Nullable error) {
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if (success) {
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NSString *uri = [NSString stringWithFormat:@"ph://%@", [placeholder localIdentifier]];
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resolve(uri);
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} else {
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reject(kErrorUnableToSave, nil, error);
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}
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}];
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});
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};
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if ([type isEqualToString:@"video"]) {
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inputURI = request.URL;
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saveBlock();
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} else {
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[_bridge.imageLoader loadImageWithURLRequest:request
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callback:^(NSError *loadError, UIImage *loadedImage) {
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if (loadError) {
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reject(kErrorUnableToLoad, nil, loadError);
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[_bridge.imageLoader loadImageWithURLRequest:request callback:^(NSError *error, UIImage *image) {
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if (error) {
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reject(kErrorUnableToLoad, nil, error);
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return;
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}
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// It's unclear if writeImageToSavedPhotosAlbum is thread-safe
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dispatch_async(dispatch_get_main_queue(), ^{
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[self->_bridge.assetsLibrary writeImageToSavedPhotosAlbum:loadedImage.CGImage metadata:nil completionBlock:^(NSURL *assetURL, NSError *saveError) {
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if (saveError) {
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RCTLogWarn(@"Error saving cropped image: %@", saveError);
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reject(kErrorUnableToSave, nil, saveError);
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} else {
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resolve(assetURL.absoluteString);
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}
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}];
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});
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inputImage = image;
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saveBlock();
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}];
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}
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}
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@ -181,90 +161,132 @@ RCT_EXPORT_METHOD(getPhotos:(NSDictionary *)params
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{
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checkPhotoLibraryConfig();
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ensureAssetsLibLoaded();
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NSUInteger first = [RCTConvert NSInteger:params[@"first"]];
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NSString *afterCursor = [RCTConvert NSString:params[@"after"]];
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NSString *groupName = [RCTConvert NSString:params[@"groupName"]];
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ALAssetsFilter *assetType = [RCTConvert ALAssetsFilter:params[@"assetType"]];
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ALAssetsGroupType groupTypes = [RCTConvert ALAssetsGroupType:params[@"groupTypes"]];
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NSUInteger const first = [RCTConvert NSInteger:params[@"first"]];
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NSString *const afterCursor = [RCTConvert NSString:params[@"after"]];
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NSString *const groupName = [RCTConvert NSString:params[@"groupName"]];
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NSString *const groupTypes = [[RCTConvert NSString:params[@"groupTypes"]] lowercaseString];
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NSString *const mediaType = [RCTConvert NSString:params[@"assetType"]];
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NSArray<NSString *> *const mimeTypes = [RCTConvert NSStringArray:params[@"mimeTypes"]];
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// If groupTypes is "all", we want to fetch the SmartAlbum "all photos". Otherwise, all
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// other groupTypes values require the "album" collection type.
|
||||
PHAssetCollectionType const collectionType = ([groupTypes isEqualToString:@"all"]
|
||||
? PHAssetCollectionTypeSmartAlbum
|
||||
: PHAssetCollectionTypeAlbum);
|
||||
PHAssetCollectionSubtype const collectionSubtype = [RCTConvert PHAssetCollectionSubtype:groupTypes];
|
||||
|
||||
// Predicate for fetching assets within a collection
|
||||
PHFetchOptions *const assetFetchOptions = [RCTConvert PHFetchOptionsFromMediaType:mediaType];
|
||||
assetFetchOptions.sortDescriptors = @[[NSSortDescriptor sortDescriptorWithKey:@"creationDate" ascending:NO]];
|
||||
|
||||
BOOL __block foundAfter = NO;
|
||||
BOOL __block hasNextPage = NO;
|
||||
BOOL __block resolvedPromise = NO;
|
||||
NSMutableArray<NSDictionary<NSString *, id> *> *assets = [NSMutableArray new];
|
||||
|
||||
[_bridge.assetsLibrary enumerateGroupsWithTypes:groupTypes usingBlock:^(ALAssetsGroup *group, BOOL *stopGroups) {
|
||||
if (group && (groupName == nil || [groupName isEqualToString:[group valueForProperty:_ALAssetsGroupPropertyName]])) {
|
||||
// Filter collection name ("group")
|
||||
PHFetchOptions *const collectionFetchOptions = [PHFetchOptions new];
|
||||
collectionFetchOptions.sortDescriptors = @[[NSSortDescriptor sortDescriptorWithKey:@"endDate" ascending:NO]];
|
||||
if (groupName != nil) {
|
||||
collectionFetchOptions.predicate = [NSPredicate predicateWithFormat:[NSString stringWithFormat:@"localizedTitle == '%@'", groupName]];
|
||||
}
|
||||
|
||||
[group setAssetsFilter:assetType];
|
||||
[group enumerateAssetsWithOptions:NSEnumerationReverse usingBlock:^(ALAsset *result, NSUInteger index, BOOL *stopAssets) {
|
||||
if (result) {
|
||||
NSString *uri = ((NSURL *)[result valueForProperty:_ALAssetPropertyAssetURL]).absoluteString;
|
||||
PHFetchResult<PHAssetCollection *> *const assetCollectionFetchResult = [PHAssetCollection fetchAssetCollectionsWithType:collectionType subtype:collectionSubtype options:collectionFetchOptions];
|
||||
[assetCollectionFetchResult enumerateObjectsUsingBlock:^(PHAssetCollection * _Nonnull assetCollection, NSUInteger collectionIdx, BOOL * _Nonnull stopCollections) {
|
||||
// Enumerate assets within the collection
|
||||
PHFetchResult<PHAsset *> *const assetsFetchResult = [PHAsset fetchAssetsInAssetCollection:assetCollection options:assetFetchOptions];
|
||||
|
||||
[assetsFetchResult enumerateObjectsUsingBlock:^(PHAsset * _Nonnull asset, NSUInteger assetIdx, BOOL * _Nonnull stopAssets) {
|
||||
NSString *const uri = [NSString stringWithFormat:@"ph://%@", [asset localIdentifier]];
|
||||
if (afterCursor && !foundAfter) {
|
||||
if ([afterCursor isEqualToString:uri]) {
|
||||
foundAfter = YES;
|
||||
}
|
||||
return; // Skip until we get to the first one
|
||||
return; // skip until we get to the first one
|
||||
}
|
||||
|
||||
// Get underlying resources of an asset - this includes files as well as details about edited PHAssets
|
||||
if ([mimeTypes count] > 0) {
|
||||
NSArray<PHAssetResource *> *const assetResources = [PHAssetResource assetResourcesForAsset:asset];
|
||||
if (![assetResources firstObject]) {
|
||||
return;
|
||||
}
|
||||
|
||||
PHAssetResource *const _Nonnull resource = [assetResources firstObject];
|
||||
CFStringRef const uti = (__bridge CFStringRef _Nonnull)(resource.uniformTypeIdentifier);
|
||||
NSString *const mimeType = (NSString *)CFBridgingRelease(UTTypeCopyPreferredTagWithClass(uti, kUTTagClassMIMEType));
|
||||
|
||||
BOOL __block mimeTypeFound = NO;
|
||||
[mimeTypes enumerateObjectsUsingBlock:^(NSString * _Nonnull mimeTypeFilter, NSUInteger idx, BOOL * _Nonnull stop) {
|
||||
if ([mimeType isEqualToString:mimeTypeFilter]) {
|
||||
mimeTypeFound = YES;
|
||||
*stop = YES;
|
||||
}
|
||||
}];
|
||||
|
||||
if (!mimeTypeFound) {
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
// If we've accumulated enough results to resolve a single promise
|
||||
if (first == assets.count) {
|
||||
*stopAssets = YES;
|
||||
*stopGroups = YES;
|
||||
*stopCollections = YES;
|
||||
hasNextPage = YES;
|
||||
RCTAssert(resolvedPromise == NO, @"Resolved the promise before we finished processing the results.");
|
||||
RCTResolvePromise(resolve, assets, hasNextPage);
|
||||
resolvedPromise = YES;
|
||||
return;
|
||||
}
|
||||
CGSize dimensions = [result defaultRepresentation].dimensions;
|
||||
CLLocation *loc = [result valueForProperty:_ALAssetPropertyLocation];
|
||||
NSDate *date = [result valueForProperty:_ALAssetPropertyDate];
|
||||
NSString *filename = [result defaultRepresentation].filename;
|
||||
int64_t duration = 0;
|
||||
if ([[result valueForProperty:_ALAssetPropertyType] isEqualToString:_ALAssetTypeVideo]) {
|
||||
duration = [[result valueForProperty:_ALAssetPropertyDuration] intValue];
|
||||
}
|
||||
|
||||
NSString *const assetMediaTypeLabel = (asset.mediaType == PHAssetMediaTypeVideo
|
||||
? @"video"
|
||||
: (asset.mediaType == PHAssetMediaTypeImage
|
||||
? @"image"
|
||||
: (asset.mediaType == PHAssetMediaTypeAudio
|
||||
? @"audio"
|
||||
: @"unknown")));
|
||||
CLLocation *const loc = asset.location;
|
||||
|
||||
// A note on isStored: in the previous code that used ALAssets, isStored
|
||||
// was always set to YES, probably because iCloud-synced images were never returned (?).
|
||||
// To get the "isStored" information and filename, we would need to actually request the
|
||||
// image data from the image manager. Those operations could get really expensive and
|
||||
// would definitely utilize the disk too much.
|
||||
// Thus, this field is actually not reliable.
|
||||
// Note that Android also does not return the `isStored` field at all.
|
||||
[assets addObject:@{
|
||||
@"node": @{
|
||||
@"type": [result valueForProperty:_ALAssetPropertyType],
|
||||
@"group_name": [group valueForProperty:_ALAssetsGroupPropertyName],
|
||||
@"type": assetMediaTypeLabel, // TODO: switch to mimeType?
|
||||
@"group_name": [assetCollection localizedTitle],
|
||||
@"image": @{
|
||||
@"uri": uri,
|
||||
@"filename" : filename ?: [NSNull null],
|
||||
@"height": @(dimensions.height),
|
||||
@"width": @(dimensions.width),
|
||||
@"isStored": @YES,
|
||||
@"playableDuration": @(duration),
|
||||
@"height": @([asset pixelHeight]),
|
||||
@"width": @([asset pixelWidth]),
|
||||
@"isStored": @YES, // this field doesn't seem to exist on android
|
||||
@"playableDuration": @([asset duration]) // fractional seconds
|
||||
},
|
||||
@"timestamp": @(date.timeIntervalSince1970),
|
||||
@"location": loc ? @{
|
||||
@"timestamp": @(asset.creationDate.timeIntervalSince1970),
|
||||
@"location": (loc ? @{
|
||||
@"latitude": @(loc.coordinate.latitude),
|
||||
@"longitude": @(loc.coordinate.longitude),
|
||||
@"altitude": @(loc.altitude),
|
||||
@"heading": @(loc.course),
|
||||
@"speed": @(loc.speed),
|
||||
} : @{},
|
||||
@"speed": @(loc.speed), // speed in m/s
|
||||
} : @{})
|
||||
}
|
||||
}];
|
||||
}
|
||||
}];
|
||||
}
|
||||
}];
|
||||
|
||||
if (!group) {
|
||||
// Sometimes the enumeration continues even if we set stop above, so we guard against resolving the promise
|
||||
// multiple times here.
|
||||
// If we get this far and haven't resolved the promise yet, we reached the end of the list of photos
|
||||
if (!resolvedPromise) {
|
||||
hasNextPage = NO;
|
||||
RCTResolvePromise(resolve, assets, hasNextPage);
|
||||
resolvedPromise = YES;
|
||||
}
|
||||
}
|
||||
} failureBlock:^(NSError *error) {
|
||||
if (error.code != ALAssetsLibraryAccessUserDeniedError) {
|
||||
RCTLogError(@"Failure while iterating through asset groups %@", error);
|
||||
}
|
||||
reject(kErrorUnableToLoad, nil, error);
|
||||
}];
|
||||
}
|
||||
|
||||
RCT_EXPORT_METHOD(deletePhotos:(NSArray<NSString *>*)assets
|
||||
resolve:(RCTPromiseResolveBlock)resolve
|
||||
|
|
|
|||
|
|
@ -39,7 +39,7 @@ RCT_EXPORT_MODULE()
|
|||
// Using PhotoKit for iOS 8+
|
||||
// The 'ph://' prefix is used by FBMediaKit to differentiate between
|
||||
// assets-library. It is prepended to the local ID so that it is in the
|
||||
// form of an, NSURL which is what assets-library uses.
|
||||
// form of an NSURL which is what assets-library uses.
|
||||
NSString *assetID = @"";
|
||||
PHFetchResult *results;
|
||||
if (!imageURL) {
|
||||
|
|
|
|||
Loading…
Reference in New Issue