Bilder ohne Verwendung von ImagePickerController erhalten

Question

Ich habe versucht, Galerie Fotos ohne UIImagePickerController obwohl PHAsset ..Wenn ich Bilder von PHAsset bekommen dauert es viel Speicher .. Gibt es eine andere Möglichkeit, Fotos ohne PHAsset Bibliothek

zu erhalten

Answer 1

Versuchen Sie dies.

- (ALAssetsLibrary *)defaultAssetsLibrary 
{ 
    static dispatch_once_t pred = 0; 
    static ALAssetsLibrary *library = nil; 
    dispatch_once(&pred, ^{ 
     library = [[ALAssetsLibrary alloc] init]; 
    }); 
    return library; 
} 

- (void)loadThumbnails 
{ 
    photosArray = [[NSMutableArray alloc] init]; 
    ALAssetsLibrary *assetLibrary = [self defaultAssetsLibrary]; 
    [assetLibrary enumerateGroupsWithTypes:ALAssetsGroupAll usingBlock:^(ALAssetsGroup *group, BOOL *stop) { 
     if (group) 
     { 
      if ([[group valueForProperty:ALAssetsGroupPropertyName] isEqualToString:@"Camera Roll"]) 
       [self getContentFrom:group withAssetFilter:[ALAssetsFilter allPhotos]]; 
     } 
    } failureBlock:^(NSError *error) { 
     NSLog(@"Error Description %@",[error description]); 
    }]; 
} 

- (void) getContentFrom:(ALAssetsGroup *) group withAssetFilter:(ALAssetsFilter *)filter 
{ 
    [group setAssetsFilter:filter]; 
    [group enumerateAssetsUsingBlock:^(ALAsset *result, NSUInteger index, BOOL *stop) { 

     if (result) { 

      NSMutableDictionary *tempDictionary = [[NSMutableDictionary alloc] init]; 
      [tempDictionary setObject:result forKey:@"thumbnail"]; 
      [tempDictionary setObject:@"0" forKey:@"selected"]; 

      [photosArray addObject:tempDictionary]; 
     } else { 
      //Finish load Assets 
      photosArray = [[[photosArray reverseObjectEnumerator] allObjects] mutableCopy]; 
      [collectionViewMedia reloadData]; 
     } 
    }]; 
} 

Für Get Berechtigungen

+ (void)requestPermissions:(GalleryPermission)callback 
{ 
    PHAuthorizationStatus status = [PHPhotoLibrary authorizationStatus]; 
    switch (status) 
    { 
     case PHAuthorizationStatusAuthorized: 
      callback(YES); 
      break; 
     case PHAuthorizationStatusNotDetermined: 
     { 
      [PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus authorizationStatus) 
      { 
       if (authorizationStatus == PHAuthorizationStatusAuthorized) 
        callback(YES); 
       else 
        callback(NO); 
      }]; 
      break; 
     } 
     default: 
      callback(NO); 
      break; 
    } 
}