Bitcoin Wallet for Android

[Rassah]

What can I do?

Nothing ... if you don't have back it up from the android wallet (specific menu "security" with the line "backup wallet now"), the backup file store in the "download" folder on SDCARD0 (internal memory on v4.3 android, external memory on v4.2 or older android).

You have cleared the install (data of application), your phone have erased the wallet file with this process.

Titanium Backup, if done on a rooted phone, should back up ALL data, unless this wallet stores its private keys in some strange location.

[Meuh6879]

... OK, it's true, i have missed the point of the wallet backup in the memory of phone.
(be carefull, titanium backup don't store the SDCARD0).

[Nattekat]

Since my own thread doesn't get much attention I'm going to ask it here:

Is there by chance any method to remove an address from my wallet? Either by modifying the backup (which I just can't decode for some reason) or in the app itself?

I have an address that receives many big transactions and it completly kills the app, yet I want to keep using the other addresses that I have if possible.

[btchris]

Since my own thread doesn't get much attention I'm going to ask it here:

Is there by chance any method to remove an address from my wallet? Either by modifying the backup (which I just can't decode for some reason) or in the app itself?

I have an address that receives many big transactions and it completly kills the app, yet I want to keep using the other addresses that I have if possible.

Assuming that the address you want to remove was created prior to version 4.0 (roughly the beginning of October), and that you're running a recent version today (3.47 or later), it is theoretically possible but would be a giant pain, not to mention fraught with peril. (If you're currently running a version older than 3.47, it's actually much easier. If the address you want to remove was created after version 4.0, it may not even be possible).

So, how important is it to keep your old addresses? Is it worth a few hours of your time? More importantly, is it worth paying somebody else for a few hours of their time to figure out and document how to do this (would involve decrypting a backup (easyish), modifying a protobuf-format wallet file (not so easy...), and re-encrypting it (easyish) so that it can be restored in the app)?

If you're an IT person and would like to try figuring it out yourself, I could give you some starting points, but like I said it won't be easy....

[sed]

Since my own thread doesn't get much attention I'm going to ask it here:

Is there by chance any method to remove an address from my wallet? Either by modifying the backup (which I just can't decode for some reason) or in the app itself?

I have an address that receives many big transactions and it completly kills the app, yet I want to keep using the other addresses that I have if possible.

Assuming that the address you want to remove was created prior to version 4.0 (roughly the beginning of October), and that you're running a recent version today (3.47 or later), it is theoretically possible but would be a giant pain, not to mention fraught with peril. (If you're currently running version 3.47 or older, it's actually much easier. If the address you want to remove was created after version 4.0, it may not even be possible).

So, how important is it to keep you old addresses? Is it worth a few hours of your time? More importantly, is it worth paying somebody else for a few hours of their time to figure out and document how to do this (would involve decrypting a backup (easyish), modifying a protobuf-format wallet file (not so easy...), and re-encrypting it (easyish) so that it can be restored in the app)?

If you're an IT person and would like to try figuring it out yourself, I could give you some starting points, but like I said it won't be easy....

I've decrypted the exported key backup files before.  The format was just a plain text format---pretty easy to modify if you wanted to do so.  I don't know if that's the protobuf thing you're talking about or not.

[btchris]

I've decrypted the exported key backup files before.  The format was just a plain text format---pretty easy to modify if you wanted to do so.  I don't know if that's the protobuf thing you're talking about or not.

The decryption part isn't too hard because you can use the fairly standard openssl command-line tool, however starting with version 3.47 the decrypted format changed from a text file containing WIF-style privkeys to a Google Protocol Buffer format. There are some advantages to the new format, and there's plenty of documentation on Google protobuf, however until someone writes some software to handle the new format, it's not particularly easy to deal with.

[sed]

I've decrypted the exported key backup files before.  The format was just a plain text format---pretty easy to modify if you wanted to do so.  I don't know if that's the protobuf thing you're talking about or not.

The decryption part isn't too hard because you can use the fairly standard openssl command-line tool, however starting with version 3.47 the decrypted format changed from a text file containing WIF-style privkeys to a Google Protocol Buffer format. There are some advantages to the new format, and there's plenty of documentation on Google protobuf, however until someone writes some software to handle the new format, it's not particularly easy to deal with.

Aha, that's very interesting.  Indeed I used the openssl command line tool just as you said.  I didn't realize that there was a new format.  I guess I don't play around in those backup files very often

[tspacepilot]

I recently updated (ver 4.something, I think).  Now I note that android (4.4.4) thinks that all .apk files are to be handled by Bitcoin Wallet.  That is, if I download an apk, instead of getting processed by com.android.packageinstaller, it gets opened by Bitcoin Wallet which says "hey, you're about to update your wallet, provide the password".  For a moment, I thought that these were malware apks trying to steal my bitcoins, then I looked closer and realized that they were not malicious apps, only that my android system seems to (after the upgrade) pass all .apk files to bitcoin wallet for interpretation.  FWIW, I was able to install my apk files by simply opening Terminal Emulator and running 'pm install path/to/apk/file.apk', nevertheless, I'd like to fix this so that clicking apk files doesn't automatically open Bitcoin Wallet.  I note as well that I looked into the app settings and it currently shows "no defaults set" for Bitcoin Wallet.

Any advice is welcome.

[m30188]

The fee needs to be changed to 0.0001

I'm sick of my transactions taking an hour to get confirmed.

[m30188]

The fee needs to be changed to 0.0001

I'm sick of my transactions taking an hour to get confirmed.

I'm still waiting!

[Newar]

The fee needs to be changed to 0.0001

I'm sick of my transactions taking an hour to get confirmed.

I'm still waiting!

There is it already.
When you are on the send page, click on three dots at the upper right, than "Quick confirm, higher fee [ ]"

[2weiX]

Please bring back a way to generate a deposit addy and share this addy.
Although you're technically correct in preceding a payment request with "bitcoin:", it's unpractical.

[EcuaMobi]

Please bring back a way to generate a deposit addy and share this addy.
Although you're technically correct in preceding a payment request with "bitcoin:", it's unpractical.

I really need the option to create several addresses for several payers. Is it coming back?

[sed]

I wish they would bring this back.  There was this whole thing about resuse of addresses and fungibility of bitcoin and many of the main thinkers started to say that HD wallets were going to be the future and whatnot and I think this is why andreas removed some of the address sorting functionality.

[Andreas Schildbach]

No one stops you from re-using addresses if you really want that. Just press "request coins" several times and hand these payment requests to different payers.

[sed]

No one stops you from re-using addresses if you really want that. Just press "request coins" several times and hand these payment requests to different payers.

Yah, but it's sad that we can't label our own addresses and sort them easily by payments received.  I think this would be really helpful.  bitcoind has this "listreceivedbyaddress" if I recall correctly.

[tspacepilot]

Labeling own addresses will be in the next release. You can help testing: https://plus.google.com/+AndreasSchildbach/posts/YHpkmLP9D1A

Oh cool!  I'm currently back on an old telephone using some old software while I wait for my current phone to get repaired.  As soon as I get my current phone back, I'm going to try out the latest (and I'm also glad to hear that you brought back address labelling!)

[btcash]

Would be nice to prevent other people from accessing the app with a pin (not only spending).

[acquafredda]

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

[btchris]

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.