Databases
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    <p>You can take log of metadata with AssetsLibrary framework:</p> <pre><code>-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { ... NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType]; if ([mediaType isEqualToString:(NSString*)kUTTypeImage]) { NSURL *url = [info objectForKey:UIImagePickerControllerReferenceURL]; if (url) { ALAssetsLibraryAssetForURLResultBlock resultblock = ^(ALAsset *myasset) { CLLocation *location = [myasset valueForProperty:ALAssetPropertyLocation]; NSLog(@"\n\n\n____________________________\n"); NSLog(@"ORIENTATION: %@\n",[myasset valueForProperty:ALAssetPropertyOrientation]); NSLog(@"LOCATION: %@\n",[myasset valueForProperty:ALAssetPropertyLocation]); NSLog(@"DATE: %@\n",[myasset valueForProperty:ALAssetPropertyDate]); NSLog(@"Duration: %@\n",[myasset valueForProperty:ALAssetPropertyDuration]); NSLog(@"TYPE: %@\n",[myasset valueForProperty:ALAssetPropertyType]); NSLog(@"\n____________________________\n\n\n"); //take coordinates only CLLocationCoordinate2D coordinate = [location coordinate]; strCoord = [NSString stringWithFormat:@"long: %f; lat: %f;", coordinate.latitude, coordinate.longitude]; NSLog(@"%@", strCoord); // location contains lat/long, timestamp, etc // extracting the image is more tricky and 5.x beta ALAssetRepresentation has bugs! }; ALAssetsLibraryAccessFailureBlock failureblock = ^(NSError *myerror) { NSLog(@"cant get image - %@", [myerror localizedDescription]); }; ALAssetsLibrary *assetsLib = [[ALAssetsLibrary alloc] init]; [assetsLib assetForURL:url resultBlock:resultblock failureBlock:failureblock]; } } ... } </code></pre>
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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