使用ios中的singleton从蓝牙管理器访问对象

Question

我正在尝试为我的BLEManager创建一个单例类，它在启动屏幕ViewController的viewdidload上调用。在init完成后，如何在视图控制器中获取对象_transporter和_BLEAdapter？

BLEManager.h

@interface MyManager : NSObject {
 BLETransporter* _transporter;
 BLEAdapter* _BLEAdapter;
}

@property (strong, nonatomic) BLETransporter* transporter;
@property (strong, nonatomic) BLEAdapter* BLEAdapter;

+ (id)sharedInstance;

@end

BLEManager.m

@implementation MyManager

@synthesize BLEAdapter=_BLEAdapter;
@synthesize  transporter = _BLEAdapter;

+(BLEManager*)sharedInstance{
static BLEManager *sharedInstance = nil;
static dispatch_once_t oncePredicate;
dispatch_once(&oncePredicate, ^{
    sharedInstance = [[self alloc] init];
});

return sharedInstance;
}

- (id)init {
  if (self = [super init]) {
  _transporter = [BLETransporter transporterWithIdentifier:nil serviceUUIDs:serviceUUIDs];
  [_transporter connectWithBlock:^(NSInputStream * _Nullable inputStream, NSOutputStream * _Nullable outputStream) {

    if ( !inputStream )
    {
        LOG( @"Could not connect to device" );
        return;
    }

    _BLEAdapter = [BLEAdapter adapterWithInputStream:inputStream outputStream:outputStream];
    [_BLEAdapter connect];
    }];         
}
return self
}