I think this usecase is now covered with Bitcoin Wallet (see my sig).
You can use NFC to initiate Bitcoin payments between Android devices, or between an Android device and a passive NFC tag.
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If there is bitcoin java, does that mean there could be Bitcoin android?!
There is. See my sig.
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I am here to say, with certainty, that this is not a fraud. I got mine to work, and now I think I know what has been going wrong. The download is getting interupted without any kind of error or even a force close. To get it done, you need to plug your phone into the charger, turn on the app, select 'refresh' from the settings menu, and just set it down near your wifi router and go to bed. DO NOT hit the button to make the screen sleep. The app will keep the screen on, which is why you need it plugged in, and will take many hours to march through the blockchain. But by morning, the spinning icon should be gone and any coins that you sent to it should be visable. You can safely stop the app, and the next time you start the app, it will take only a short while to catch up.
Obviously we're talking about different apps here. Make sure you've got the app from my sig installed.
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Lässt sich dieser Anwalt die Marke für Waschmaschinen eintragen, ist vermutlich nichts dagegen zu machen, allerdings sähe ich da auch kein Problem.
Ich schon. Wäre ich Kunde eines Waschsalons, würde ich in Bitcoin zahlen wollen. Also muß es Hersteller von Waschmaschinen geben, die Bitcoin unterstützen und dann natürlich auch damit werben.
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Es ist leider schwer, eine einmal anerkannte Marke wieder löschen zu lassen. Denn dann müßte ja eine Behörde zugeben, daß sie einen Fehler gemacht hat...
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Force closes. Sometimes lockng up the phone, requiring me to pull the battery and reboot. I have a Samsung Intercept
Can you send me a crash report? Did you already clear your apps data after upgrading from an earlier release?
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For Bitcoin Android and any other future client that uses the headers-only blockchain.
I don't think the headers-only blockchain is the root of your problem. Can you try "Bitcoin Wallet"? (see link in my sig)
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Is this with "Android Bitcoin" or "Bitcoin Wallet"?
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Awesome. Sent 0.01 BTC to myself and it showed up on the phone, still waiting to be cemented in a block.
Put a USD/BTC calculator on there so I can calculate how much I owe my friends for dinner and I'll pay them in bitcoin.
Already requested by someone else: See https://github.com/barmstrong/bitcoin-android/issues/5. This is already implemented by Bitcoin Wallet for Android. (see signature for Market page)
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Wir haben ja schon ein Restaurant in Berlin, das Bitcoin akzeptiert. (Room77)
Vielleicht sollten wir (dort?) ein un/regelmäßiges Treffen organisieren?
Wer wäre dabei?
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Can I recommend a feature? If the phone is out of range of the network, or otherwise does not have Internet access, could this app use a shared wifi hotspot as an intermediary without access to directly transmit the transaction from the sender to the receiver's phone? Much like your 'Blinkendroid' app can send data to numerous phones if they are all connected to the same hotspot?
Excellent idea? Are you aware of a standard? I would think about transmitting the receiving peers address in the QR code, but then again the BitcoinJ framework currently does not allow incoming connections. I'll work towards it.
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Has anyone been able to get this to do any more than spin? Mine has been running since yesterday, has a 22 meg footprint, and still hasn't seen the coins that I sent it. I'm using a Samsung Intercept, but it doesn't force close like Bitcoin Wallet did.
The force close is only because there was an incompatible wallet format change. Just remove all data with the app manager, and you'll be set. FYI, I just implemented a progress in percent for block chain sync (see notification bar). ( https://market.android.com/details?id=de.schildbach.wallet)
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Ja, bitcoin-android benötigt Android ab 2.2.
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I'd like to comment on the C2DM idea. I'm a bit sceptical about the benefits of C2DM.
First, it's platform dependent. You'd have to implement a relay for Android, and for iOS, and for WebOS, and so on.
How comes that none of the Google Apps, with the exception of the example app "Chrome2Phone", uses C2DM? There would be some that would fit the usecase of C2DM: Google Talk (IM), VoIP calls, Twitter, Google Reader.
A TCP connection while not receiving any data should consume no energy at all. Isn't it all a matter of limiting the data to relevant messages?
Perhaps an extension of the regular BitCoin nodes would be feasible, some kind of "I am only interested in BC-addresses x and y" filter that can be applied. Maybe this is a privacy problem, but wouldn't a C2DM relay need the same kind of filter?
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