Databases
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    1. This table or related slice is empty.
    1. POSignificant lag when loading image using UIImage from URL asynchronously
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    1. This table or related slice is empty.
    1. USDaniel Dickison
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    1. This table or related slice is empty.
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      1. VTUpMod
    1. COWow, that fixed the problem. Thanks so much! That was so simple! I'm still not entirely sure why though. I will have to read up on it. Now that I've got a fully implemented and working NSUrlConnection method (which on it's own is asynchronous) and a NSData/dataWithContentsOfURL method using NSObjectQueue for asynchronicity method which works, which one do you recommend I use? What are the strengths of using NSUrlConnection vs. NSData and vice versa? I have heard that NSUrlConnection has more flexibility with regards to caching and handles errors better. Is that true? Thanks again!
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      1. USJackson
    2. COIt's true that NSURLConnection gives you more flexibility. But using the NSURLConnection's asynchronous loading in a background NSOperation is quite tricky, because you'll need to set up your own run loop. You can use `-[NSURLConnection sendSynchronousRequest:returningResponse:error:]` method to get some of the flexibility offered by NSURLConnection (see NSMutableURLRequest) while keeping things synchronous. That's probably what I'd do unless you have complex HTTP redirect/authentication/caching requirements.
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      1. USDaniel Dickison
    3. COAs for "why" this solution works is that the view drawing code running on the main thread needs to know that you just changed the image of the image view. By calling setImage: in a background thread, presumably the main thread is never notified that there's new content to be drawn (until something else causes the view to be refreshed). It's possible you can get much worse behavior by doing this on the background thread -- e.g. if you change out the image while the main thread is in the middle of trying to draw it.
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      1. USDaniel Dickison
 

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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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