how to use NSThread

 

installThread = [ [ NSThread alloc ] initWithTarget:self 

  selector:@selector(installThreadFun:) 

object:nil 

];

[ installThread start ];

while  ( installThread != nil && [ installThread isFinished ] == NO )

{

[ NSThread sleepForTimeInterval:0.1 ];

}

[ installThread cancel ];

[ installThread release ];

 

 

- (void) installThreadFun:(id)arg

{

UIProgressHUD          *processBar  = nil;

NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

 

processBar = [ [ UIProgressHUD alloc ] initWithFrame:CGRectMake(85, 150, 150, 120) ];

processBar.tag = 2;

processBar.backgroundColor = [ UIColor redColor ];

[ processBar setText:_(@"Installing...") ];

[ processBar showInView:self.view ];

[ processBar release ];

 

[pool release];

return;

}