Identify NSoperation dynamically - ios

Question

How to identify Nsoperation dynamically.
I am creating a NSoperation subclass
- (id)initWithConnectDevice:(ConnectDevice *)cDevice toPeripheral:(CBPeripheral*)peripheral oPerationIndex:(int) index{
if (self = [super init]) {
operationIndex = index;
executing = NO;
finished = NO;
self.connectDevice = cDevice;
[self.connectDevice setDelegate:self];
self.connectedPeripheral = peripheral;
}
return self;
}
-(BOOL)isConcurrent{
return YES;
}
- (BOOL)isExecuting {
return executing;
}
- (BOOL)isFinished {
return finished;
}
-(void) terminateOperation {
[self willChangeValueForKey:#"isFinished"];
[self willChangeValueForKey:#"isExecuting"];
finished = YES;
executing = NO;
[self didChangeValueForKey:#"isExecuting"];
[self didChangeValueForKey:#"isFinished"];
}
- (void)start {
#autoreleasepool {
if (self.isCancelled){
[timer invalidate];
[self willChangeValueForKey:#"isFinished"];
finished = YES;
[self didChangeValueForKey:#"isFinished"];
return;
}
timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:#selector(timerFired:) userInfo:nil repeats:YES];
[[NSRunLoop currentRunLoop] run];
}
}
-(void)timerFired:(id)sender{
NSLog(#"timerFired");
}
I am scanning for BLE devices. For example I will found 3 devices, 3 buttons will create.
I am calling this class every time when I am clicking on that button.That means, When I click on button, I am connecting to bluetooth device and get the data from that device for every second thats why I am using timer in start method.
Like that I have multiple bluetooth devices, whenever I clicked on button, I want to create multiple instances of Operation Queue class.
Now, I want to identify which data is coming from which thread.
Could you please help me....
This the way I am calling above class from viewcontroller
OperationQueue *queue = [[OperationQueue alloc] initWithConnectDevice:connectDevices toPeripheral:peripheral oPerationIndex:operationIndex];
queue.delegate = self;
[[[AppDelegate app] mainQueue] addOperation:queue];
operationIndex = operationIndex+1;

Answer 1

Each of your operations has two identifying properties already - the connected device and the index. When the timer fires, depending what you want to do with the data, you can use these properties to tell where the data is coming from.
You can either have a delegate property on the operation, where a delegate method is called when the timer fires that takes the device and the received data as parameters, or you the operation could have a block property, which takes a block to be executed whenever data is received - the block would have the device and the received data as parameters.
Assuming you want to update the UI when the data is received, be sure to call the delegate method or execute the block on the main thread.