When a device bind iPhone by HID and the device is connected, I use and
NSArray<CBPeripheral *> *peripherals;
if (self.serviceUUID) {
peripherals = [self.centralManager retrieveConnectedPeripheralsWithServices: @[self.serviceUUID]];
}else{
peripherals = [self.centralManager retrieveConnectedPeripheralsWithServices: @[]];
}
__block BOOL isConnected = NO;
[peripherals enumerateObjectsUsingBlock:^(CBPeripheral * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
BOOL match = NO;
[[NiuLogManager shareManager] log: obj.identifier.UUIDString];
if (self.filterPeripheralBlock) {
match = self.filterPeripheralBlock(obj, nil, nil);
}
if (match) {
*stop = YES;
isConnected = YES;
self.peripheral = obj;
if (self.didFoundTargetPeripheralHandler) {
self.didFoundTargetPeripheralHandler(self, obj, nil);
}
}
}];
if (isConnected) {
return;
}
NSMutableArray<NSUUID *> *perIDs = [NSMutableArray arrayWithCapacity:2];
if (peripheralID) {
[perIDs addObject:peripheralID];
}
peripherals = [self.centralManager retrievePeripheralsWithIdentifiers:perIDs];
[peripherals enumerateObjectsUsingBlock:^(CBPeripheral * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
BOOL match = NO;
if (self.filterPeripheralBlock) {
match = self.filterPeripheralBlock(obj, nil, nil);
}
if (match) {
*stop = YES;
isConnected = YES;
self.peripheral = obj;
if (self.didFoundTargetPeripheralHandler) {
self.didFoundTargetPeripheralHandler(self, obj, nil);
}
}
}];
if (isConnected) {
return;
}
[self doScanAction:nil];
it has no effect to find the connected device? what should I do?
erlang
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