blueTooth システムに接続していますhttp://redbearlab.com/blemini/
サービスからデータを読み取るには、
このデバイスで利用できるサービスを確認するにはどうすればよいですか。lightblue ios アプリを使用して、デバイスにサービスがあることを確認しました。
デバイスに接続して名前を取得できます
しかし、私のサービス配列はnullとして表示されます[チェックは上記のアプリでnullではありません]
ここに私のコード
#import "MainViewController.h"
@interface MainViewController ()
@property (nonatomic, retain)UILabel *deviceName;
@property (nonatomic, retain)UILabel *deviceUUID;
@property (nonatomic, retain)UILabel *deviceConnected;
@end
@implementation MainViewController
- (void)dealloc
{
[_deviceName release];
[_deviceUUID release];
[_deviceConnected release];
[super dealloc];
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self initUI];
self.view.backgroundColor = [UIColor lightGrayColor];
NSLog(@"mgmt");
self.manager = [[CBCentralManager alloc]initWithDelegate:self queue:nil];
}
- (void)centralManagerDidUpdateState:(CBCentralManager *)central {
NSLog(@"centralManagerDidUpdateState");
switch (central.state) {
case CBCentralManagerStatePoweredOn:
// Scans for any peripheral
[self.manager scanForPeripheralsWithServices:nil options:nil];
break;
default:
NSLog(@"Central Manager did change state");
break;
}
}
// device discovered
- (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI {
NSLog (@"Discovered peripheral: %@", [peripheral name]);
NSLog (@"UUID peripheral: %@", [peripheral UUID]);
NSLog (@"peripheral services: %@", [peripheral services]);
self.deviceName.text = [NSString stringWithFormat:@"Device Name: %@", [peripheral name]];
self.deviceUUID.text = [NSString stringWithFormat:@"Device UUID: %@",[peripheral UUID]];
[self.manager connectPeripheral:peripheral options:nil];
}
//scan for peripherals
- (int) scanForPeripherals {
NSLog(@"scanForPeripherals");
NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithBool:NO], CBCentralManagerScanOptionAllowDuplicatesKey, nil];
[self.manager scanForPeripheralsWithServices:nil options:options];
return 0;
}
- (void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral {
NSLog(@"Central Manager didConnectPeripheral");
self.deviceConnected.text = @"Device Connected: YES";
NSLog (@"UUID services: %@", [peripheral services]);
// Clears the data that we may already have
[self.data setLength:0];
// Sets the peripheral delegate
[self.activePeripheral setDelegate:self];
// Asks the peripheral to discover the service
//test! direct
CBUUID *serviceUUID = [CBUUID UUIDWithString:@"D298E274-3CB0-2C5F-A0B0-A90D97304453"];
NSArray *serviceArray = [NSArray arrayWithObjects:serviceUUID, nil];
[self.activePeripheral discoverServices:serviceArray];
}
- (void)peripheral:(CBPeripheral *)aPeripheral didDiscoverServices:(NSError *)error {
NSLog(@"didDiscoverServices");
if (error) {
NSLog(@"Error discovering service: %@", [error localizedDescription]);
//[self cleanup];
return;
}
}
- (void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error {
NSLog(@"didDiscoverCharacteristicsForService");
if (error) {
NSLog(@"Error discovering characteristic: %@", [error localizedDescription]);
//[self cleanup];
return;
}
}
//
- (void)peripheral:(CBPeripheral *)peripheral didUpdateNotificationStateForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error {
NSLog(@"didUpdateNotificationStateForCharacteristic");
if (error) {
NSLog(@"Error changing notification state: %@", error.localizedDescription);
}
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
私のサービス配列がnullである理由についてアドバイスをお願いします。そして、それにアクセスして「読む」方法に感謝します!