Hi, So far I've only used BLE successfully with devices that don't need to use encryption, however the docs seem to infer that BluetoothGattCharacteristic requires setWriteType (int writeType) where writeType is WRITE_TYPE_SIGNED - Write characteristic including authentication signature - prior to performing encrypted write operations ?
See http://developer.android.com/reference/android/bluetooth/BluetoothGattCharacteristic.html#setWriteType(int) Also as far as I know there is no need to explicitly pair with BLE devices, it just happens automagically. You just scan for available devices and connect with the ones your interested in using. Hope that helps. Regards On Tuesday, September 24, 2013 9:28:40 PM UTC+10, Ashwini wrote: > > I am developeing an application which can talk to few smart(bluetooth 4.0) > devices. I tested the code on Nexus 4 running Android OS version 4.3. > > The application is able to connect to nordic chip programmed as heart rate > monitor. For this device, I am able to read services, characteristics and > even get updates for heart rate values. > However, when I programmed the same chip for encrypted characteristics, I > am facing some issues. > > - Connection drops sometimes after write characteristic descriptor is > performed. > - The devices once paired with phone can not be un-paired. (This is > known issue and confirmed the same from android issue tracker). > - Getting following statement in logs quite often but not able to > understand the status code - 133. > > D/BluetoothGatt(1780): onClientConnectionState() - status=133 clientIf=4 > device=CC:F3:A5:4D:CB:3F > > > - The phone also logs this statement for state change. > > In stable state, received invalid newState: 10 > > > > I do not seem to find a way to instruct the phone to get paired with the > chip. Also there is no way to specify that we want to perform *encrypted > read-write operations*. > > Any help is appreciated. > > > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
