How do I use NSXMLParser in a background

Question

I need to parse some files in the background mode. How can I do this. Is it NSXMLParser asynchronous?

score 3 · Accepted Answer · answered Feb 09 '12 at 13:05

3

It is not async, but you can always run the parse in another thread using this:

+ (void)detachNewThreadSelector:(SEL)aSelector toTarget:(id)aTarget withObject:(id)anArgument

answered Feb 09 '12 at 13:05

Oscar Gomez

18,436
13
85
118

SO you are saying that we can't parse at the same time on different threads, but we can queue several parsing operations on a single unique background thread? – Plot Mar 10 '15 at 17:15

bryanmac · Answer 2 · 2012-02-09T13:13:39.130

2

You could use GCD dispatch queues or Operation Queues to run the parsing in the background.

https://developer.apple.com/library/ios/#documentation/General/Conceptual/ConcurrencyProgrammingGuide/OperationQueues/OperationQueues.html

Blocks are fun :)

edited Feb 09 '12 at 13:13

answered Feb 09 '12 at 13:06

bryanmac

38,941
11
91
99

score 0 · Answer 3 · answered Feb 09 '12 at 15:11

0

If ios is 4.0+, then you can put NSXMLParser in another class and make the class to be the delegate of your current view controller. It will run at different thread and won't block your main thread.

answered Feb 09 '12 at 15:11

Raymond Wang

1,484
2
18
33

1

NSXMLParser parses data synchronously on the thread that calls it. – Ben Dyer Aug 17 '12 at 14:04

How do I use NSXMLParser in a background

3 Answers3