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PO
 

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    <p>The reason it isn't being creating on the main thread is one of 2 options</p> <ol> <li>The View that creates it lives on one of the background threads</li> <li>You are are calling <code>performSelectorInBackground:</code> to create your view</li> </ol> <p>To perform a function on the Main Thread call <code>performSelectorOnMainThread:</code></p> <p>Off-topic: If the function requires more then 1 parameter, change it to an NSDictionary and load all of your settings into the Dictionary and pass it in eg</p> <pre><code>NSDictionary *params = ...... //load your parameters into here [myMapView performSelectorOnMainThread:@selector(initMap:) withObject:params waitUntilDone:YES]; </code></pre> <p>Also read the following <a href="http://www.google.com.au/url?sa=t&amp;rct=j&amp;q=forcing%20a%20call%20on%20the%20main%20thread%20iOS&amp;source=web&amp;cd=3&amp;ved=0CC0QFjAC&amp;url=http://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Multithreading/ThreadSafetySummary/ThreadSafetySummary.html&amp;ei=5EkMT_r3GIiaiQeEop36BQ&amp;usg=AFQjCNFXoxOJXag9JgBwIeIL7BYeGExjfQ&amp;cad=rja" rel="nofollow">First</a> and <a href="http://www.google.com.au/url?sa=t&amp;rct=j&amp;q=forcing%20a%20call%20on%20the%20main%20thread%20iOS&amp;source=web&amp;cd=4&amp;ved=0CDUQFjAD&amp;url=http://developer.apple.com/library/ios/#documentation/Cocoa/Conceptual/Multithreading/RunLoopManagement/RunLoopManagement.html&amp;ei=5EkMT_r3GIiaiQeEop36BQ&amp;usg=AFQjCNE17Vky3OsDv6jcESIVf1Hu6qB8aw&amp;cad=rja" rel="nofollow">Second</a> to get a better understanding of multithreading in iOS</p>
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    1. POMKMapView must be initialized on the main thread
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    1. COI am using following code in viewDidLoad and this view is called by another view mapView = [[MKMapView alloc] initWithFrame:CGRectMake(0,0,780,920)]; mapView.delegate=self; [self.view addSubview:mapView]; [NSThread detachNewThreadSelector:@selector(displayMyMap) toTarget:self withObject:nil];
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    2. COYou are creating a new thread by doing that, try to change to performSelectorOnMainThread instead of detachNewThreadSelector
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    3. COthanks for your suggesion but still i am facing the same problem
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