Bitcoin Wallet for Android

[acquafredda]

Can you guys tell me why this app always creates new receiving addresses even if I never used any of them?

How would it know you've never used an address?

In other words, an address should be considered "used" as soon as you give it to someone else. There's no way to know if that someone else will spend to that address right away, or at some point in the future.

Some wallets wait for a transaction to show up in the blockchain before an address is considered used, or else require that you mark it as used manually. That's OK, but it's not as safe IMO because it requires you to track your address usage manually.

I'll make myself clear:
I installed it to try it as pocket money...
Whenever I start it I find a new address even if I never used any of them...
That's strange isn't it?

[EcuaMobi]

Can you guys tell me why this app always creates new receiving addresses even if I never used any of them?

How would it know you've never used an address?

In other words, an address should be considered "used" as soon as you give it to someone else. There's no way to know if that someone else will spend to that address right away, or at some point in the future.

Some wallets wait for a transaction to show up in the blockchain before an address is considered used, or else require that you mark it as used manually. That's OK, but it's not as safe IMO because it requires you to track your address usage manually.

I'll make myself clear:
I installed it to try it as pocket money...
Whenever I start it I find a new address even if I never used any of them...
That's strange isn't it?

From my experience it creates a new address whenever you go to 'Request coins'. That's because by doing that you are saying you will receive coins from a new transaction and therefore a new address is needed.

Are you saying it creates a new address even without  requesting coins? That would be strange indeed.

[acquafredda]

Can you guys tell me why this app always creates new receiving addresses even if I never used any of them?

How would it know you've never used an address?

In other words, an address should be considered "used" as soon as you give it to someone else. There's no way to know if that someone else will spend to that address right away, or at some point in the future.

Some wallets wait for a transaction to show up in the blockchain before an address is considered used, or else require that you mark it as used manually. That's OK, but it's not as safe IMO because it requires you to track your address usage manually.

I'll make myself clear:
I installed it to try it as pocket money...
Whenever I start it I find a new address even if I never used any of them...
That's strange isn't it?

From my experience it creates a new address whenever you go to 'Request coins'. That's because by doing that you are saying you will receive coins from a new transaction and therefore a new address is needed.

Are you saying it creates a new address even without  requesting coins? That would be strange indeed.

Yes, that's it!
So whenever I go to request coins it creates a new receiving address.
Since I had to explore it to find my addresses I probably touched request coins several times before finding them and then I ended up adding several BTC addresses.

It sounds weird to me anyway.

Thanks man!

[tspacepilot]

Yes, that's it!
So whenever I go to request coins it creates a new receiving address.
Since I had to explore it to find my addresses I probably touched request coins several times before finding them and then I ended up adding several BTC addresses.

It sounds weird to me anyway.

Thanks man!

It also creates a new address for change each time you spend some BTC and require a change address.  But these days bitcoin wallet for android is using addresses created deterministically from a seed of tweleve ascii english words.  You can find those words in your wallet backup.  Anyway, I thought I'd just add this fact in case you didn't realize that all of those addresses you're creating can be "rediscovered" from the seed---so no worries about needing a new backup each time you make an address.

[acquafredda]

Yes, that's it!
So whenever I go to request coins it creates a new receiving address.
Since I had to explore it to find my addresses I probably touched request coins several times before finding them and then I ended up adding several BTC addresses.

It sounds weird to me anyway.

Thanks man!

It also creates a new address for change each time you spend some BTC and require a change address.  But these days bitcoin wallet for android is using addresses created deterministically from a seed of tweleve ascii english words.  You can find those words in your wallet backup.  Anyway, I thought I'd just add this fact in case you didn't realize that all of those addresses you're creating can be "rediscovered" from the seed---so no worries about needing a new backup each time you make an address.

Ok, I got it now. Thanks for the explanation.

[2weiX]

To not ever reuse any address already used once is one of the prime principles of bitcoin.
If you only ever want to use the same address to receive coins, you can go to myb.tc and create a shortlink for that address.
However, as pointed out, the app also creates a new address for every changeback transaction, so that's not of much use.

[tspacepilot]

To not ever reuse any address already used once is one of the prime principles of bitcoin.
If you only ever want to use the same address to receive coins, you can go to myb.tc and create a shortlink for that address.
However, as pointed out, the app also creates a new address for every changeback transaction, so that's not of much use.

Right, if you really only want to use one address (including for change) you might be able to use an old version of this app.  If I recally correctly, older versions would just use the same address as change address (maybe before version 2 or something?).

It's quite onerous and you'd pay alot of fees, but another thing you can do is keep sending the change back to that address yourself, from within the app.  However, maybe if it'd actually be easier just to modify the soruce and recompile && install.

[Grinder]

I would appreciate an option to only connect to peers on request. I pay per MB, and even though I usually have data transfer disabled it has managed to transfer 60 MB just this month.

[TheButterZone]

I would appreciate an option to only connect to peers on request. I pay per MB, and even though I usually have data transfer disabled it has managed to transfer 60 MB just this month.

A workaround for now would be to go into settings, add 127.0.0.1 (localhost aka your own device) as your trusted peer, and check "skip regular peer discovery" when you don't want the app using bandwidth. Then when you get on free WiFi, uncheck it, and let it sync blocks. I'm watching my network monitor right now and it's going through January's blocks. It stops cold when I reengage the check.

[2weiX]

To not ever reuse any address already used once is one of the prime principles of bitcoin.
If you only ever want to use the same address to receive coins, you can go to myb.tc and create a shortlink for that address.
However, as pointed out, the app also creates a new address for every changeback transaction, so that's not of much use.

Right, if you really only want to use one address (including for change) you might be able to use an old version of this app.  If I recally correctly, older versions would just use the same address as change address (maybe before version 2 or something?).

It's quite onerous and you'd pay alot of fees, but another thing you can do is keep sending the change back to that address yourself, from within the app.  However, maybe if it'd actually be easier just to modify the soruce and recompile && install.

you can also plug one of your receiving addresses into myb.tc and request coins to ONLY that addresse. but then again, the app creates a new changeback address for every trx you send, you end up with a whole bunch of addresses with coins on them anyways...

[Grinder]

A workaround for now would be to go into settings, add 127.0.0.1 (localhost aka your own device) as your trusted peer, and check "skip regular peer discovery" when you don't want the app using bandwidth. Then when you get on free WiFi, uncheck it, and let it sync blocks. I'm watching my network monitor right now and it's going through January's blocks. It stops cold when I reengage the check.

Thanks for the tip, I'll do that.

[TheButterZone]

I would appreciate an option to only connect to peers on request. I pay per MB, and even though I usually have data transfer disabled it has managed to transfer 60 MB just this month.

In the data usage preferences, disable background data. Android allows disabling either for all apps or for individual apps specifically.

Note if you open the app manually, it will still sync as this will count as "foreground".

That option only appears in Android devices that aren't WiFi-only. If you're tethering your WiFi-only device to cellular networks, using a cell-to-WiFi device like Karma Go or MiFi, connecting through a VPN, using paid hotspots that you don't own, etc... the only solution I can see is https://bitcointalk.org/index.php?topic=4384.msg11863617#msg11863617

[TheButterZone]

I would appreciate an option to only connect to peers on request. I pay per MB, and even though I usually have data transfer disabled it has managed to transfer 60 MB just this month.

In the data usage preferences, disable background data. Android allows disabling either for all apps or for individual apps specifically.

Note if you open the app manually, it will still sync as this will count as "foreground".

That option only appears in Android devices that aren't WiFi-only. If you're tethering your WiFi-only device to cellular networks, using a cell-to-WiFi device like Karma Go or MiFi, connecting through a VPN, using paid hotspots that you don't own, etc... the only solution I can see is https://bitcointalk.org/index.php?topic=4384.msg11863617#msg11863617

In this case, use the Android Network Restrictions dialog to make your tethering Wifi network behave as if it were a mobile network.

Does not exist in Android 4.4.2, the latest firmware available for my Wi-Fi only tablet. Unless you mean Data usage>Mobile hotspots under the menu key, then you have to check each Wi-Fi network and have all background apps restricted even if you want to restrict only the high-usage one(s).

[TheButterZone]

Irregardless, you can't just set a single high-usage background app to stop being high-usage from the Wi-Fi only Android OS settings. You might want to reserve your data transfer for specific high-usage background apps and not be forced to choose between allowing all of them, or none.

[TheButterZone]

Irregardless, you can't just set a single high-usage background app to stop being high-usage from the Wi-Fi only Android OS settings.

Why not? That's what the "Restrict app background data" checkbox is for.

A checkbox that does not exist in Wi-Fi only Android 4.4.2 when selecting any app under Data usage.

[Carlton Banks]

Irregardless, you can't just set a single high-usage background app to stop being high-usage from the Wi-Fi only Android OS settings.

Why not? That's what the "Restrict app background data" checkbox is for.

A checkbox that does not exist in Wi-Fi only Android 4.4.2 when selecting any app under Data usage.

Depending on the tablet, you may be able to "root" it to allow the installation of a modified version of Android that lets you control background data for individual applications. It's not for the faint of heart, and it would help to establish for certain that the option you want is definitely available before you seek this out.

[koinsuka]

this android application very useful for android user
but, are balance from blockchain can synchronize well, my bro?

[Muhammed Zakir]

this android application very useful for android user
but, are balance from blockchain can synchronize well, my bro?

Yes.

[Sarthak]

Well, how much time does it take to confirm a transaction..its taking too long? I sent 0.002 2 times 2 hours ago and each tx carried a fee of 0.0001 BTC .. Its still unconfirmed.. Is it the problem with the wallet? thanks!

[Muhammed Zakir]

Well, how much time does it take to confirm a transaction..its taking too long? I sent 0.002 2 times 2 hours ago and each tx carried a fee of 0.0001 BTC .. Its still unconfirmed.. Is it the problem with the wallet? thanks!

Most probably, not! Have you checked whether the transactions are broadcasted or not? This can happen because the number of transactions now is high and when miners sort transactions, you maybe in the long queue. Just wait!