我实现了代码,但在连接到BLE设备时,它显示警告:
2013-12-20 16:58:57.975 TestPeripheral[1054:60b] CoreBluetooth[WARNING] <CBPeripheral: 635 identifier = Addfew23-424-E653-8E58-424343, Name = "BLE", state = connecting> is being dealloc'ed while connecting
我使用了以下代码:
- (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 before connected: %@", [peripheral services]);
deviceName.text = [NSString stringWithFormat:@"Device Name: %@", [peripheral name]];
deviceUUID.text = [NSString stringWithFormat:@"Device UUID: %@",[peripheral UUID]];
[self.manager stopScan];
NSLog(@"Scanning stopped");
NSLog (@"start connecting to device");
[self.manager connectPeripheral:peripheral options:nil];
self.activePeripheral = peripheral;
}
- (void)centralManager:(CBCentralManager *)central didRetrievePeripherals:(NSArray *)peripherals
{
for (CBPeripheral *peripheral in peripherals) {
NSLog(@"Retrieved Peripheral %@", peripheral.name);
[foundArray addObject:peripheral.name];
}
}
我将附件添加到foundarray并将它们显示在tableview中,如下所示:
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [foundArray count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] ;
cell.selectionStyle = UITableViewCellSelectionStyleGray;
}
cell.textLabel.text = [foundArray objectAtIndex:indexPath.row];
return cell;
}
当用户选择要连接的设备时,它将显示消息等待:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSInteger row = indexPath.row;
UIAlertView *alertPair = [[UIAlertView alloc] initWithTitle:@"Connecting" message:@"Waiting to connect" delegate:nil cancelButtonTitle:@"OK", nil];
[alertPair show];
}
请给我一些建议。非常感谢。
答案 0 :(得分:2)
CoreBluetooth [警告]是 在连接时被解除分配
如果不保留新连接的外围设备,则会出现此警告。连接到外设后,必须保留对它的引用(保留在mrc中或保留在弧形中)。否则,系统只会清理本地范围,并假设您不关心外围设备。所以基本上,只要保持对它的引用,你就会好起来。