Bitcoin Forum

Are there any Android BTC clients that remotely use my Bitcoin Core wallet so I don't have to use another wallet specific for my phone? I am running my own BTC node.

thanks

Doubtful, but Bitcoin Core has an RPC interface so it can done. Look here: https://en.bitcoin.it/wiki/API_reference_%28JSON-RPC%29

you can try to export your private key and import it in your android wallet. or, like the user above stated, use the RPC interface

That is a bad idea because as soon as you send bitcoins using one wallet, the balance shown by the other wallet will be incorrect different.

I think it would be safer if you send small amounts to the android wallet and keep the wallets separate. Remotely control your bitcoin core wallet (with most of your bitcoin) with your mobile phone sounds dangerous.

Incorrect,if you spend the coins, it will be broadcasted across the network. The wallet will check the blockchain for wallet balance. Since it is updated in realtime, there is no way for it to be incorrect.

But the change will be sent to an address that the other wallet doesn't control and the balances will diverge. Maybe I should have used the word "different" instead of "incorrect".

If you're looking for a ready made app I doubt there is anything. However, you can use a screen sharing app and software to control your wallet(and your whole pc)on your mobile device. You can use teamviewer or splashtop.

Teamviewer: http://www.teamviewer.com/en/index.aspx
Splashtop: http://www.splashtop.com/

Yeah, I'm thinking it would be safer to use a GreenAddress (http://greenaddress.it/) wallet on the Android and just transfer funds to that one. GreenAddress (http://greenaddress.it/) is very nice and secure, too.

You can still use address from which you are sending as change address, so balance can be ok.

This should in theory be easy to do since most Bitcoin wallets on Android are already using the BitcoinJ library it has a built-in option to connect to specific node. I don't any mainstream wallets are doing this.

I think it is easier with Python because Python is easy to study and to write it. You could easily install Python and run it on Android. Electrum Android wallet use Python.

   -MZ

Electrum runs on Android. Wow, I didn't know that. It's been a while since I tried it out, will have to test it out again one of these days.

Python running on android? I think Java is main programming language for android.

Yes for both. Java is used for almost everything in Android but that doesn't mean you can't use others. :) See Py4A is popular one. Some useful links:

1) http://code.google.com/p/python-for-android/ - Py4A.
2) https://python-for-android.readthedocs.org/
3) http://qpython.com/
4) https://www.google.co.in/search?q=python+on+android
5) https://www.google.co.in/search?q=python+on+android&hl=en&source=lnms&tbm=vid&sa=X&ei=yHv4VLm4C4eNuAS7g4LYBQ&ved=0CAcQ_AUoAQ&biw=320&bih=460&dpr=2

   -MZ

There may be easier ways than programming an Android wallet. If you just want to use the same wallet you have in Bitcoin Core on your phone (this may not be a good idea but) you could probably export it somehow and import it into the standard Bitcoin Wallet for Android.