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Author Topic: Bitcoin Wallet for Android  (Read 115032 times)
Mike Hearn
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September 13, 2012, 05:24:57 PM
 #221

Hm, I've sold people Bitcoins in person many times without that issue.

What is the transaction ID of the tx that took 100 confirmations to become spendable? The currently released version of Bitcoin Wallet doesn't understand coinbase transactions anyway (this is coming in the next version about to be released), so it feels to me more like a co-incidence of some kind and there was maybe some other issue.

Issue 13 is something different, related to change outputs.
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Rachel (BitInstant)
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September 13, 2012, 09:40:33 PM
 #222

This is exciting! Do you have to download the satoshi client or can you use an e-wallet for the app?

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imsaguy
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September 13, 2012, 10:17:15 PM
 #223

This is exciting! Do you have to download the satoshi client or can you use an e-wallet for the app?

The app IS the wallet.  It functions similarly to the satoshi client, but all on your phone or other android device.

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barbarousrelic
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September 20, 2012, 06:33:24 PM
 #224

Further information on the same problem I was having.

I have .08 bitcoins in my "Bitcoin Wallet" wallet. They have been there for over a week.

I sent .02 BTC to Satoshi Dice. I lost. Okay. Now I have .06 BTC in my wallet. I try to send another .02 BTC to SatoshiDice. And it tells me I have .06 BTC waiting for confirmation.

Looking at my wallet address on blockchain.info it says that from my wallet, .02 was sent to SatoshiDice and .06 was sent to my same wallet address I was sending from.

So I conclude that Bitcoin Wallet is waiting on confirmations for Bitcoins that were sent from my wallet back to the same wallet.

That isn't supposed to be how it works, is it? If I spend part of my Bitcoins I shouldn't have to wait to spend the remainder of them.

Do not waste your time debating whether Bitcoin can work. It does work.

"Early adopters will profit" is not a sufficient condition to classify something as a pyramid or Ponzi scheme. If it was, Apple and Microsoft stock are Ponzi schemes.

There is no such thing as "market manipulation." There is only buying and selling.
molecular
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October 05, 2012, 09:32:21 PM
 #225

Further information on the same problem I was having.

I have .08 bitcoins in my "Bitcoin Wallet" wallet. They have been there for over a week.

I sent .02 BTC to Satoshi Dice. I lost. Okay. Now I have .06 BTC in my wallet. I try to send another .02 BTC to SatoshiDice. And it tells me I have .06 BTC waiting for confirmation.

Looking at my wallet address on blockchain.info it says that from my wallet, .02 was sent to SatoshiDice and .06 was sent to my same wallet address I was sending from.

So I conclude that Bitcoin Wallet is waiting on confirmations for Bitcoins that were sent from my wallet back to the same wallet.

That isn't supposed to be how it works, is it? If I spend part of my Bitcoins I shouldn't have to wait to spend the remainder of them.

Actually let me second that question. I came to the same a similar conclusion when I tried Bitcoin Wallet recently with a friend.

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Mike Hearn
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October 06, 2012, 01:41:20 PM
 #226

Yes, we know. I'll fix that soon.
molecular
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October 06, 2012, 04:19:39 PM
 #227

Yes, we know. I'll fix that soon.

Oh, allright. Didn't know it was a known issue, just getting into this part of the bitcoin world Wink. Thanks for your great work, btw!

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Andreas Schildbach
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October 07, 2012, 12:57:34 PM
 #228

Bitcoin Wallet 2.23 fixes bugs and is based on bitcoinj 0.6.

The main user-facing feature is pictured in the image. You can watch pending transactions propagate through the network. As peers report the transaction, a grey circle grows. Finally, it is replaced by the well-known green block chain confirmation indication.

For the sender, this helps determining if a transaction was actually sent.

For the receiver, confidence in the validity of the transaction builds, as each peer should validate each transaction. However, this is just an indication. Nothing beats the validation power of the block chain.

Install/Upgrade Bitcoin Wallet from Google Play: https://play.google.com/store/apps/details?id=de.schildbach.wallet


Bitcoin Wallet for Android: Your own Bitcoins, in your own pocket!
https://play.google.com/store/apps/details?id=de.schildbach.wallet
tgmarks
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October 07, 2012, 08:40:50 PM
 #229

Thanks for the continued work, I like the improvement.

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October 12, 2012, 02:43:27 PM
 #230

Wonderful!

Quote

Version 2.3 RC implements import and export of private keys to external storage. Would you help testing?

http://code.google.com/p/bitcoin-wallet/downloads/list

http://code.google.com/p/bitcoin-wallet/issues/detail?id=10

Do not waste your time debating whether Bitcoin can work. It does work.

"Early adopters will profit" is not a sufficient condition to classify something as a pyramid or Ponzi scheme. If it was, Apple and Microsoft stock are Ponzi schemes.

There is no such thing as "market manipulation." There is only buying and selling.
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October 21, 2012, 12:10:07 PM
 #231

Wonderful!

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Version 2.3 RC implements import and export of private keys to external storage. Would you help testing?

http://code.google.com/p/bitcoin-wallet/downloads/list

http://code.google.com/p/bitcoin-wallet/issues/detail?id=10


Is there a guide on how to work with imported/exported keys?
For instance, what can I do with an exported key, how does the password relate to that (the private key is encrypted when exporting it from the Bitcoin Wallet app, etc). Will be useful for n00bs like me  Grin

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Andreas Schildbach
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October 21, 2012, 02:13:47 PM
 #232

Is there a guide on how to work with imported/exported keys?
For instance, what can I do with an exported key, how does the password relate to that (the private key is encrypted when exporting it from the Bitcoin Wallet app, etc). Will be useful for n00bs like me  Grin

I added a little bit of info to the README (see FILES section).

The main use case is backups, which should not need much explanation. On devices with SD card, export to your SD card directly or if external storage is in fact internal, pull your backup via USB cable. Importing is the other way round (-:

For many people, the usecase will be a wallet shared between two devices. However, I advise against such a setup (due to the risk of creating invalid transactions). For this reason, I have not documented it.

Bitcoin Wallet for Android: Your own Bitcoins, in your own pocket!
https://play.google.com/store/apps/details?id=de.schildbach.wallet
Wekkel
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October 21, 2012, 07:41:50 PM
 #233

Is there a guide on how to work with imported/exported keys?


I added a little bit of info to the README (see FILES section).

The main use case is backups, which should not need much explanation.

Well, the problem is that I use Windows (XP). Exporting the key to SD Card is no problem. The program also asks for a password to encrypt the private key thus exported. The point is: what should I do when I copy this encrypted private key to my Windows machine? I don't think that a bash with openssl commands will be at my disposal in windows.

Background: as with 2.23, I am having some trouble with 2.3 to get a fully updated blockchain in the Android app. Updating the chain is flacky (also after full reset of blockchain). It took me all day today to get it updated by restarting the app and numerous FC's. Now that it is updated, not all transactions are shown (compared to blockchain.info).

Don't worry, your e-mail inbox is probably full with my crash reports  Cool

Anyway,  I want to know how I can access the funds in the wallet by other means if necessary.

It is still the most gorgeous UI I have seen for an Android app so I hope the wrinkles will be ironed out in the future.

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Andreas Schildbach
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October 21, 2012, 08:14:12 PM
 #234

Well, the problem is that I use Windows (XP). Exporting the key to SD Card is no problem. The program also asks for a password to encrypt the private key thus exported. The point is: what should I do when I copy this encrypted private key to my Windows machine? I don't think that a bash with openssl commands will be at my disposal in windows.

There is OpenSSL for Windows. However, I can't help you with that since I use Windows only for gaming.

You can try importing the file into Multibit, it's also available for Windows.

Quote
Background: as with 2.23, I am having some trouble with 2.3 to get a fully updated blockchain in the Android app. Updating the chain is flacky (also after full reset of blockchain). It took me all day today to get it updated by restarting the app and numerous FC's. Now that it is updated, not all transactions are shown (compared to blockchain.info).

Don't worry, your e-mail inbox is probably full with my crash reports  Cool

Your device only assigns very little memory (32 MB) to each app. Thus, you are experiencing lots of out of memory errors. Try uninstalling all apps you don't really need.

Quote
It is still the most gorgeous UI I have seen for an Android app so I hope the wrinkles will be ironed out in the future.

The plan is that memory requirement will be lowered considerably by receiving only transactions that are relevant to your wallet. However, this is still some time in the future (needs enhancements of protocol and upgrades of Satoshi clients), so your best bet is upgrading to a decent phone like the Galaxy Nexus.

Bitcoin Wallet for Android: Your own Bitcoins, in your own pocket!
https://play.google.com/store/apps/details?id=de.schildbach.wallet
Andreas Schildbach
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October 21, 2012, 08:54:48 PM
 #235

I just released 2.31 final to market. So key import/export is now available to everyone. Well mostly everyone. I had to raise the minimum requirement to Froyo (Android 2.2) and above.

Bitcoin Wallet for Android: Your own Bitcoins, in your own pocket!
https://play.google.com/store/apps/details?id=de.schildbach.wallet
Wekkel
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October 21, 2012, 09:30:57 PM
 #236

Your device only assigns very little memory (32 MB) to each app. Thus, you are experiencing lots of out of memory errors. Try uninstalling all apps you don't really need.
[...] so your best bet is upgrading to a decent phone like the Galaxy Nexus.

Good to know that the problem is my aging device (HTC Desire HD)  Tongue

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Mike Hearn
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October 21, 2012, 10:04:02 PM
 #237

Well, the problem is really that we haven't finished (or even started) deploying bloom filters. It means the RAM requirements are going up over time as Bitcoin usage scales.

There's no theoretical reason Bitcoin can't run well on your phone. But as Andreas said, we haven't finished all the programming for that yet.
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October 22, 2012, 12:41:30 AM
 #238

Well, the problem is really that we haven't finished (or even started) deploying bloom filters. It means the RAM requirements are going up over time as Bitcoin usage scales.

There's no theoretical reason Bitcoin can't run well on your phone. But as Andreas said, we haven't finished all the programming for that yet.

It already runs well on mobile devices through web-based thin clients. It may not be your ideal security scheme nor be a node like you like, but it works just fine for the end user. And they will move on without your suggestions.

No, Bitcoin will not die because everyone and their grandma is not running a node. Mining nodes can become numerous enough.
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October 22, 2012, 03:31:30 AM
 #239

I just released 2.31 final to market. So key import/export is now available to everyone. Well mostly everyone. I had to raise the minimum requirement to Froyo (Android 2.2) and above.

Andreas, thanks for the updates!

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October 22, 2012, 11:49:46 PM
 #240

In the first post it is mentioned that the Android heap limit is 4MB, on other devices it is 16 and 24 respectively. However, this heap limit applies to Dalvik, and not for Native code, so that's a solution, unless the author has already found a solution.

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