Yes, that's how SPV works. Bitcoinj is not designed as a full node.
On 12/26/2016 02:46 AM, cerz wrote: > But the rescan takes a long time, bitcoinj need re-download all > blockchain with SPV mode.. > > 2016-12-26 2:30 GMT+08:00 Andreas Schildbach <andr...@schildbach.de > <mailto:andr...@schildbach.de>>: > > Sending coins without a wallet isn't really supported. You need to > import the key as you suggest, then you need to rescan the blockchain > for any payments to the key. After the scan the balance should be up to > date and you should be able to send any coins on the key. > > > On 12/25/2016 04:41 AM, Joseph wrote: > > Work on SPV mode. > > > > Q1: How to get balance when I import a new private key which have some > btc? > > > > Wallet wallet = new Wallet(params); > > wallet.importKey(newKeys); > > > > wallet.getBalance(); // always 0 btc > > > > Q2: How to send btc without wallet? > > I have a private key whiche have some btc, and how to create > > a transaction and broadcast? > > > > -- > > You received this message because you are subscribed to the Google > > Groups "bitcoinj" group. > > To unsubscribe from this group and stop receiving emails from it, send > > an email to bitcoinj+unsubscr...@googlegroups.com > <mailto:bitcoinj%2bunsubscr...@googlegroups.com> > > <mailto:bitcoinj+unsubscr...@googlegroups.com > <mailto:bitcoinj%2bunsubscr...@googlegroups.com>>. > > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. > > > -- > You received this message because you are subscribed to a topic in > the Google Groups "bitcoinj" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/bitcoinj/XXIko8qNtzI/unsubscribe > <https://groups.google.com/d/topic/bitcoinj/XXIko8qNtzI/unsubscribe>. > To unsubscribe from this group and all its topics, send an email to > bitcoinj+unsubscr...@googlegroups.com > <mailto:bitcoinj%2bunsubscr...@googlegroups.com>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. > > > -- > You received this message because you are subscribed to the Google > Groups "bitcoinj" group. > To unsubscribe from this group and stop receiving emails from it, send > an email to bitcoinj+unsubscr...@googlegroups.com > <mailto:bitcoinj+unsubscr...@googlegroups.com>. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "bitcoinj" group. To unsubscribe from this group and stop receiving emails from it, send an email to bitcoinj+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.