iOS/Objective-C equivalent of Android's AsyncTask

Question

I\'m familiar with using AsyncTask in Android: create a subclass, call execute on an instance of the subclass and onPostExecute is cal

Answer 1

if your targeting earlier iOS Version (than iOS 4 for Grand Central Dispatch) you could use the NSObject performSelector methods

• Execute on Background Thread performSelectorInBackground:withObject:

• And execute on MainThread performSelectorOnMainThread:withObject:waitUntilDone:

This is an example:

[self performSelectorInBackground:@selector(executeInBackground) withObject:nil];


-(void) executeInBackground
{
    NSLog(@"executeInBackground");

    [self performSelectorOnMainThread:@selector(executeOnMainThread) withObject:nil waitUntilDone:NO];
}

-(void) executeOnMainThread
{
    NSLog(@"executeOnMainThread");
}