pairing

问题 From my dataset I'm trying to make pairs based on a ranking. my data looks like ID grp rank 1 grp1 1 1 grp2 1 1 grp3 2 2 grp1 1 2 grp2 2 2 grp2 2 2 grp2 2 2 grp3 2 2 grp1 3 The output I am aiming for is the following: for each ID if rank = 1 then grp in source and destination are the same = grp If rank is different from 1 then source = take grp from previous rank destination = take group from current rank If more then one group exist for the same ranking then an additional line needs to be

问题 I have the right IP address although when I go to connect to my mac I get this error message: An error occurred while generating the SSH keys. Please check that the environment is properly configured. Details: cat: /Users/cbcb/Library/Caches/Xamarin/XMA/Keys/---------------------: No such file or directory I have tried creating a new admin user, I have remote login enabled, and when I go to the following location above the folder is blanked. 回答1: I fixed this problem by manually importing the

问题 I am having trouble connecting two Android devices via Bluetooth, which happens only when they have been paired before. I am running one as the server and the other as the client. Here is the sequence of things on the server side: Check various Bluetooth statuses (adapter available, is enabled, etc). call listenUsingRfcommWithServiceRecord() with a pre-defined UUID that I chose. request to make device discoverable since being discoverable happens asynchronously, I call accept() and wait for

问题 android noob here! Is there a difference between when two android devices (smartphones) are 'paired' and when they're 'connected'? If so, what is the difference when transferring data from one to the other? 回答1: Please imagine yourself in such a situation: You come to car with BT audio system first time. You are not paired and not connected. You pair the devices and because you are close to the car you immediately connecting. But when you go to home and you are away from car you are

问题 I implemented a GATT Server and Client App on Android. The connection is working and I forced pairing by adding PERMISSION_READ/WRITE_ENCRYPTED_MITM to all of the GattCharacteristics. But the pairing behavior differs on different clients: 1) Pin is shown on the client/central (Android 5 on Samsung Galaxy S3) and should be insert on the server/peripheral (Android 7 on Nexus 5). 2) Passkey is shown on both devices client/central (Android 5 on Samsung Galaxy S3) and server/peripheral (Android 6

问题 Does anyone have a complete working example of how to programmatically pair with a BLE ( not Bluetooth Classic) device that uses passkey entry (i.e. a 6-digit PIN) or Numeric Comparison on Android 4.4 or later? By 'programmatically' I mean I tell Android the PIN - the user isn't prompted. There are many similar questions about this on SO but they are either a) about Bluetooth Classic, b) old (before setPin() and createBond() were public), or c) unanswered. My understanding is as follows. You

问题 Assume a device has never seen another device before, in this setup it will know of its device mac address already and simply try to pair that device to determine if it is in range now How can I override the pairing dialogue? 回答1: I don't think you can override the pairing dialogue. But I think it is possible to do what you are trying to do. If you initiate a device discovery and register to receive the ACTION_FOUND intent. http://developer.android.com/reference/android/bluetooth

问题 I've got an issue about android 6 and BLE compatibility. My app initiate a read request on a protected characteristic which launch the pairing display to enter the appropriate passcode. With the right pass code, the smartphone and the ble device are bonded just fine if it's with android < 6.0 I tried with an android 6.0.1 too but it keeps giving me the same message "Couldn't pair because of an incorrect PIN or passkey" It's not a permission issue since i already get the position permission

问题 I'm writing an Android application in which I'd like to programmatically bond to a custom BLE device. I have the manual bonding working in which the user enters the PIN using the standard Android Bluetooth pairing dialog, but I have not been able to find any information on how to automatically bond a BLE device programatically, without user intervention. Is that possible? If so, what's the process? 回答1: I was able to make this work MOST OF THE TIME by registering a BroadcastReceiver to

问题 I want to make demo application, which contains following features. search and show device list in my device Bluetooth range. connect(pair) selected devices. then share string data. For doing that I am using core Bluetooth framework(Central and peripheral classes). using that I am able to search devices, connect devices and transfer string data also. but I am not able to authenticate devices before pairing(when I call connect method it is directly shown me connected status). how is it handled