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2
votes
1answer
175 views

Official or default Bitcoin wallet for Android

I'm new to cryptocurrencies, and I noticed that both Litecoin and Dogecoin have official wallet apps for Android. Does Bitcoin similarly have an official Android wallet app? If not, is there a ...
2
votes
0answers
57 views

How can I watch an address on Windows and Android?

I want to be informed of transactions of my Bitcoin address on the Windows and the Android app. Can I use the same Bitcoin address on both? If yes, how can I backup the address on Windows and restore ...
0
votes
0answers
16 views

How do you install NXT on Android?

How do you install NXT on Android? I already have a Java Virtual Machine running on my phone.
3
votes
1answer
217 views

How do I extract my private keys from a protobuf wallet?

Recent changes to Andreas Schildbach's Bitcoin client for Android have removed the option to export private keys. This has been replaced by an option to back up the entire wallet. Unfortunately, the ...
2
votes
1answer
66 views

Problems decrypting my bitcoin-wallet on android

So I dropped my phone in the toilet... Of course I immediately turned it off and went with the rice technique. I realized later that I had coins on my phone on the bitcoin-wallet on android . Luckily, ...
0
votes
1answer
99 views

Import android mobile wallet to desktop

I have an android wallet (The Andreas Schildbach one). Is it possible to import this wallet into my desktop wallet? I would like to be able to manage my funds using my mobile or my desktop - both ...
0
votes
0answers
19 views

Any options for sending Cold Storage funds in memory like Mycelium?

Mycelium has a feature that allows for importing a Cold Storage wallet into memory, sending out the funds, and then destroying the memory traces of the private key. I really like this option but ...
1
vote
1answer
41 views

How to choose address in BlockChain Android Application?

If I want to receive funds using the Blockchain Android application I click on the arrow on the top of the screen which brings up the Request Bitcoin screen, showing the QR-code for easy scanning. ...
1
vote
0answers
36 views

Altcoin apps stealing hashes?

It was super cool to discover so many alt coins have cloned the Bitcoin Wallet Android app, however I noticed that the phone started running unusally hot after installing all the coin apps, even when ...
0
votes
0answers
40 views

Can't broadcast transaction

I am trying to create android wallet for some cryptocurrency (litecoin similar). My altcoin wallet is based on bitcoinj-0.10.1. Everything works except transactions broadcast. There are logs from my ...
1
vote
1answer
60 views

What is proofOfWorkLimit?

Look at the code below from android bitcoin wallet: proofOfWorkLimit = Utils.decodeCompactBits(0x1d00ffffL); And look at the code from bitcoin qt wallet: static CBigNum ...
0
votes
1answer
55 views

Android Bitcoin Wallet - send address

i have 3 addresses on my android bitcoinwallet , but when sending coins I cant find where to select from which addreess i want to send from. I set the second of the three addresses i ve got as the ...
0
votes
0answers
88 views

Easyminer & Jalapeno on Android doing zero work

I just installed Easyminer for Android on a small ARM device (Compulab Trim Slice) and it seems to be working fine except for the fact that it is mining at a rate of 0 GH/s. I have tried two ...
0
votes
2answers
168 views

Spend BTCs from a paper wallet

So, I want to create a cold storage bitcoin address to store incoming BTCs from donations and payments (I'm a freelance developer so I'm getting used being payed with BTC). Since this address has to ...
1
vote
1answer
59 views

How can non-Coinbase customers pay to Coinbase from Android?

Scenario: Say I want to create a shopping app on android. After filling the shopping cart, when the user wants to check out, he is asked to pay me the bitcoins. I have created an account on ...
0
votes
1answer
264 views

How to build a bitcoinj checkpoint file

How can I build a bitcoinj checkpoint file like the Bitcoin-wallet checkpoints?
0
votes
0answers
87 views

Android Bitcoin Wallet, zero balance after keys import

I imported all my private keys (including those of change addresses) to Andreas Schildbach's Bitcoin Wallet from bitcoin-qt and my balance is still zero. This disagrees with Blockchain, which clearly ...
1
vote
2answers
38 views

New version of Bitcoin Wallet is signed with a different key

F-Droid is offering an update to Bitcoin Wallet, but when I try to update, the following message is shown. I haven't found any official news from the author about this key change. What should I do?
2
votes
1answer
227 views

What app should I use to import my wallet keys?

I have the private key backup from my Android phone wallet. My phone broke and has been replaced but I can't see any import option in the Android wallet app. How do I get my BTC back?
1
vote
1answer
2k views

How can I restore my dogecoin wallet (android client)

How can I restore my dogecoin wallet backup? It was created by the dogecoin android client and lives in my Google Drive account. This question already exists, but no answer is given for Android (and ...
-2
votes
1answer
116 views

Bitcoin Application [closed]

I'm undertaking a Masters thesis and want to generate a wallet application for mobile devices. I do not need my application to be trustworthy or practical, simply because no-one other than me will ...
-1
votes
2answers
110 views

Write an android application

What is the best way for me to go about writing a new Bitcoin wallet application? Is piggybacking off API's like blockchain.info or coinbase a good tactic? Would the application then be OK to ...
1
vote
2answers
151 views

Android Bitcoin Wallet - change addresses and key backup

I've had the Android bitcoin walllet for some time. When I installed it I was assigned some public address/key. I have made various transactions in and out of the wallet but as fas as I can telll the ...
6
votes
2answers
2k views

How to decode private key from Android Bitcoin Wallet?

I want to import my private key from the android's Bitcoin Wallet (the one created by Andreas Schildbach) but it can export it only in an encrypted way. How do I decrypt the file so I can import the ...
1
vote
1answer
115 views

Validate bitcoin address from android application

How I can validate bitcoin address from android application? It is better to have solution without calling external services...
-3
votes
1answer
108 views

bitcoin for my android app [closed]

I am panning to build an android app for my college cafeteria where student can buy coffee using bitcoin and the can recharge the bitcoin through some source(from college bank). please give me some ...
3
votes
1answer
744 views

How to move Bitcoins from desktop wallet to mobile wallet?

I have Bitcoins on my desktop wallet client. And i now have the Bitcoin Wallet by Andreas Schildbach installed on my Android device. IS it possible to move the desktop wallet to Android wallet?
2
votes
2answers
268 views

Is there an Android Bitcoin app that can interact with other Android Apps on the same device?

Suppose I'm developing a Bitcoin-based Android app. It could do anything: user pays Bitcoins to play a game, order a pizza, accept charitable donations. Whatever it does, it does it in Bitcoins, and ...
1
vote
2answers
582 views

How do you load the Android bitcoin backup key onto Bitcoin Qt?

I have an android wallet key and i want to load it onto my windows desktop. I am using Bitcoing-Qt, but i dont see an import option anywhere. How can this be done?
1
vote
2answers
498 views

How do I figure out the balance of an individual address on Bitcoin for Android?

I have just installed the bitcoin wallet for android on my device and created two addresses. I transferred some BTC to one address and some to the second one. I thought the wallet will show the ...
6
votes
1answer
334 views

Do any of the Android-based wallets support cold storage?

Specifically I'm looking for Armory-like functionality where the transaction can be generated on an online system, transported to an offline android tablet or netbook via USB or QR code where it can ...
2
votes
1answer
364 views

How do I fully uninstall the Bitcoin Wallet app for Android?

My phone is rooted and I'm not going to use the Bitcoin Wallet app anymore since I'll be switching to another one. My problem is, I can't seem to find where the downloaded blockchains are stored. If ...
2
votes
1answer
359 views

Is pruning of the merkle tree implemented in the bitcoin android wallet?

I know that satoshi's client doesn't prune, because we need to store all the transactions so that we can send them to other nodes. But does this android bitcoin wallet from de.schildbach prune? ...
3
votes
2answers
519 views

How to remove a wallet from Android Bitcoin Wallet

I'm using Bitcoin Wallet for Android. I recently backed up my wallet's keys and did a fresh install to a new device and restored my wallet there. All great so far.. I'd now like to remove the fresh ...
1
vote
1answer
928 views

How much data is transferred using Andreas Schildbach's Bitcoin Wallet Android app?

After installing the app, a message appeared on my phone saying there were 83 weeks of data to synchronise. How much data is involved in this process? I don't want to exceed the data limit for my ...
3
votes
3answers
6k views

What's the best Android wallet client for bitcoin?

There are many bitcoin wallet clients on android market. What is the best considering security, interoperability and usability?
5
votes
2answers
413 views

How exactly does MyWallet's Android client work?

When I create an account via my desktop browser, I am assured that the password only exists on my browser, and is not saved. So, if I "pair" an Android device with MyWallet, can or can't I send BTC ...
4
votes
1answer
146 views

What client-side checks does blockchain's android client do?

Blockchain just came out with a great Android client, based on bitcoin-wallet. In the description it says "No blockchain downlaod [sic.]". However, in the documentation of their sources, they say ...
7
votes
3answers
3k views

Is there a known way to export my wallet private key from the “Bitcoin Android” app (com.bitcoinandroid)?

A while back, I installed the Bitcoin Android app and moved 5 BTC on it. Fast forward to now, new phone, new ROM, and the app seems completely unwilling to update its blockchain, meaning I have no way ...
7
votes
2answers
1k views

Interoperability of Bitcoin clients

Is it possible to operate on the same wallet from multiple devices? If I run, for example Android on a device, and Windows/Linux on another, how do I share the same private key(s) of my wallet between ...
7
votes
2answers
3k views

How to backup Android Wallet?

I'm finally getting ready to install an Android client. I believe Android Wallet is the most popular one. How do I back up the bitcoins stored on it? Also, is there a thin native Android client ...
17
votes
7answers
940 views

Can I send bitcoins with my mobile phone?

Is it possible to send and receive bitcoins with a mobile phone? If so, are there bitcoin clients for Android or iOS?