Databases
StackOverflow2013
Postsdbo
POAbout how to use NSThread
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POAbout how to use NSThread
    primarykey
    data
    text
    <p>I'm an iPhone developer. I studied about how to use NSThread. So I created source code. But, I'm not sure about my source code whether good or bad.</p> <pre><code> -(void)check_threadEnd { if ([_thread isFinished]) { threadCount++; if (threadCount == 4) { [self performSelector:@selector(removeActivityView) withObject:nil afterDelay:0.0]; [self.tableView reloadData]; } } } </code></pre> <p>Sometimes, threadCount doesn't become 4. So, ActiveView is worked continual without stopping. Turn the timer after a period of time, remove ActiveView? I'll give you some advice please.</p> <pre><code>-(IBAction)click_ServerSync:(id)sender { if ([util checkNetwork]) { threadCount = 0 ; [self displayActivityView]; NSOperationQueue *queue = [[[NSOperationQueue alloc] init] autorelease]; [queue setMaxConcurrentOperationCount:4]; _thread = [[NSThread alloc] initWithTarget:self selector:@selector(_th) object:nil]; [_thread start]; } } -(void)_th { [self performSelectorOnMainThread:@selector(LoadXml:) withObject:@"XML1" waitUntilDone:NO]; [self performSelectorOnMainThread:@selector(LoadXml:) withObject:@"XML2" waitUntilDone:NO]; [self performSelectorOnMainThread:@selector(LoadXml:) withObject:@"XML3" waitUntilDone:NO]; [self performSelectorOnMainThread:@selector(LoadXml:) withObject:@"XML4" waitUntilDone:NO]; } -(void)LoadXml:(NSString*)P_VAL { NSString *smsURL = [NSString stringWithFormat:@"%@%@.asp", XML_URL, P_VAL]; NSString *sendAuthInfo = [NSString stringWithFormat:@"A=%@&amp;B=%d&amp;C=%@&amp;D=%@" , A, B, C, D ]; NSString *val = [sendAuthInfo stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; NSMutableURLRequest *request = [[[NSMutableURLRequest alloc]initWithURL:[NSURL URLWithString:smsURL]]autorelease]; [request setURL:[NSURL URLWithString:smsURL]]; [request setHTTPMethod:@"POST"]; [request setHTTPBody: [val dataUsingEncoding: NSUTF8StringEncoding]]; [self startAsyncLoad:request tag:P_VAL]; } - (void)startAsyncLoad:(NSMutableURLRequest*)request tag:(NSString*)tag { CustomURLConnection *connection = [[CustomURLConnection alloc] initWithRequest:request delegate:self startImmediately:YES tag:tag]; if (connection) { [receivedData setObject:[[NSMutableData data] retain] forKey:connection.tag]; } } - (NSMutableData*)dataForConnection:(CustomURLConnection*)connection { NSMutableData *data = [receivedData objectForKey:connection.tag]; return data; } -(void)check_threadEnd { if ([_thread isFinished]) { threadCount++; if (threadCount == 4) { [self performSelector:@selector(removeActivityView) withObject:nil afterDelay:0.0]; [self.tableView reloadData]; } } } - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { NSMutableData *dataForConnection = [self dataForConnection:(CustomURLConnection*)connection]; [dataForConnection setLength:0]; } - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { NSMutableData *dataForConnection = [self dataForConnection:(CustomURLConnection*)connection]; [dataForConnection appendData:data]; } -(void)connectionDidFinishLoading:(NSURLConnection*)connection { NSLog(@" connection connectionDidFinishLoading : %d", [connection retainCount]); NSMutableData *dataForConnection = [self dataForConnection:(CustomURLConnection*)connection]; [connection release]; [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; NSXMLParser *xmlParser = [[[NSXMLParser alloc] initWithData:dataForConnection] autorelease]; XMLParser *parser = [[XMLParser alloc] initXMLParser]; [xmlParser setDelegate:(id)parser]; parser.viewDelegate = (id)self; [xmlParser parse]; // xml parser } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. UShyekyung
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COThis thread is utterly pointless, why did you make it? All it does it run stuff on the main thread....
      singulars
      1. POAbout how to use NSThread
      1. USborrrden
    2. COThe queue you creat I'm not sure but it seems you are not using it. You are creative it then the nsthrad but you are thinking of creating 4 NSOperations? NSthread is something you need a very long-reapeating-conditional based stuff that needs to be done like a game drawing loop or a chat application. Things you will need to keep a constant eye on.
      singulars
      1. POAbout how to use NSThread
      1. USPareshkumar
 

Querying!

 
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.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload