Class Not Running - objective-c

Question

I'm new to Xcode and Objective C, but learning fast. I am writing a Bluetooth LE app to collect data from multiple BLE devices. Happy with CoreBluetooth and am able to get what I want to function and collect the data.
However, I did it all within AppDelegate and now want to separate out different sections of code into neat Classes.
Code compiles okay but nothing runs other than AppDelegate.
Example of the class - SensorDev.m:
#import <Foundation/Foundation.h>
#import <CoreBluetooth/CoreBluetooth.h>
#class SensorDev;
#protocol SensorDevDelegate<NSObject>
- (void) sensorDevDidChangeStatus:(SensorDev*)dev;
#end
#interface SensorDev : NSObject
#property (nonatomic, assign, readonly) id<SensorDevDelegate> delegate;
#property (nonatomic, readonly) CBPeripheral *peripheral;
- (id)initWithPeripheral:(CBPeripheral *)peripheral controller:(id<SensorDevDelegate>)controller;
- (void)start;
#end
Example of the class - SensorDev.h
#import "SensorDev.h"
NSString *SR1Device9DOFServiceUUIDString = #"346D0000";
NSString *SR1Device9DOFCharacteristicUUIDString = #"346D0001-12A9-11CF-1279-81F2B7A91332";
#interface SensorDev() <CBPeripheralDelegate> {
CBService *_temperatureService;
CBCharacteristic *_temperatureCharacteristic;
}
#end
#implementation SensorDev
#pragma mark - Setup
- (id)initWithPeripheral:(CBPeripheral *)peripheral controller:(id<SensorDevDelegate>)controller
{
self = [super init];
if (self) {
_peripheral = peripheral;
_peripheral.delegate = self;
_delegate = controller;
}
return self;
}
#pragma mark - Start
// -------------------------------------------------------------------------------
// Startup
// -------------------------------------------------------------------------------
- (void)start
{
NSLog(#"- (void) start"); //--Debug
CBUUID *serviceUUID = [CBUUID UUIDWithString:SR1Device9DOFServiceUUIDString];
NSArray *serviceArray = [NSArray arrayWithObjects:serviceUUID, nil];
[_peripheral discoverServices:serviceArray];
}
#end
I don't get the debug line in the log:
NSLog(#"- (void) start"); //--Debug
Looking for help guys....what am I missing ...thanks in advance ....
UPDATE
So I have a second class that does all the CoreBluetooth setup and discovery
Discovery.h
#import <Foundation/Foundation.h>
#import <CoreBluetooth/CoreBluetooth.h>
#import "SensorDev.h"
// -------------------------------------------------------------------------------
//UI Setup/Protocols
// -------------------------------------------------------------------------------
#protocol DiscoveryDelegate <NSObject>
- (void) discoveryDidRefresh;
- (void) discoveryStatePoweredOff;
#end
#interface Discovery : NSObject
+(Discovery*) sharedInstance;
#property (nonatomic, assign) id<DiscoveryDelegate> discoveryDelegate;
#property (nonatomic, assign) id<SensorTagDelegate> peripheralDelegate;
// -------------------------------------------------------------------------------
// Actions
// -------------------------------------------------------------------------------
- (void) startScanningForUUIDString:(NSString *)uuidString;
- (void) stopScanning;
- (void) connectPeripheral:(CBPeripheral*)peripheral;
- (void) disconnectPeripheral:(CBPeripheral*)peripheral;
// -------------------------------------------------------------------------------
// Access to the devices
// -------------------------------------------------------------------------------
#property (readonly, nonatomic) NSMutableArray *foundPeripherals;
#property (retain, nonatomic) NSMutableArray *connectedPeripherals;
#end
Discover.m (extract)
#import "Discovery.h"
extern NSString *SR1Device9DOFServiceUUIDString; //346D0000
extern NSString *SR1Device9DOFCharacteristicUUIDString; //346D0001-12A9-11CF-1279-81F2B7A91332
#interface Discovery() <CBCentralManagerDelegate, CBPeripheralDelegate> {
CBCentralManager *_centralManager;
BOOL _pendingInit;
}
#end
#implementation Discovery
#pragma mark - Setup
+ (Discovery*) sharedInstance
{
static Discovery *this = nil;
if (!this)
this = [[Discovery alloc] init];
return this;
}
- (id) init
{
self = [super init];
if (self) {
_pendingInit = YES;
_centralManager = [[CBCentralManager alloc] initWithDelegate:self queue:nil options:nil];
_foundPeripherals = [[NSMutableArray alloc] init];
_connectedPeripherals = [[NSMutableArray alloc] init];
}
return self;
}
#pragma mark - CoreBluetooth Services
// -------------------------------------------------------------------------------
// CoreBluetooth Start/Stop Scanning
// -------------------------------------------------------------------------------
- (void)startScanningForUUIDString:(NSString *)uuidString
{
NSLog(#"- (void) startScanningForUUIDString"); //--Debug
[_centralManager scanForPeripheralsWithServices:
[NSArray arrayWithObjects:SR1Device9DOFServiceUUIDString, nil] options:nil];
}
- (void)stopScanning
{
NSLog(#"- (void) stopScanning"); //--Debug
}
// -------------------------------------------------------------------------------
// CoreBluetooth Connect/Disconnect
// -------------------------------------------------------------------------------
- (void) connectPeripheral:(CBPeripheral*)peripheral
{
NSLog(#"- (void) connectPeripheral"); //--Debug
if (peripheral.state == CBPeripheralStateDisconnected) {
[_centralManager connectPeripheral:peripheral options:nil];
}
}
- (void) disconnectPeripheral:(CBPeripheral*)peripheral
{
NSLog(#"- (void) disconnectPeripheral"); //--Debug
[_centralManager cancelPeripheralConnection:peripheral];
}
- (void) centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral {
NSLog(#"- (void) didConnectPeripheral"); //--Debug
SensorDev *tag = nil;
// Create a service instance.
tag = [[SensorDev alloc] initWithPeripheral:peripheral controller:_peripheralDelegate];
[tag start];
if (![_connectedPeripherals containsObject:tag])
[_connectedPeripherals addObject:tag];
[_peripheralDelegate sensorTagDidChangeStatus:tag];
[_discoveryDelegate discoveryDidRefresh];
}
This isn't running either ...

Answer 1

The reason why the classes were not running as there was nothing calling them. The class associated to the view controller was not calling the class:
BLEController.h
#import <Foundation/Foundation.h>
#interface BLEController : NSObject {
enter code here
NSMutableArray *_periphralItems;
}
#end
BLEController.m
#import "SensorDev.h"
#import "Discovery.h"
#import "BLEController.h"
#interface BLEController() <DiscoveryDelegate, SensorTagDelegate>
{
BOOL _selfSelection;
}
#end
#implementation BLEController
- (void)awakeFromNib
{
[[Discovery sharedInstance] setDiscoveryDelegate:self];
[[Discovery sharedInstance] setPeripheralDelegate:self];
_periphralItems = [NSMutableArray new];
}
- (void) discoveryDidRefresh
{
}
- (void) discoveryStatePoweredOff
{
}
- (void)sensorTagDidChangeStatus:(SensorTag *)tag
{
if(tag.peripheral.state == CBPeripheralStateConnected) {
//Do something
}
}
#end
The awakeFromNib allows me to call the other classes....