Looks like peer discovery doesn't work. I would for now use a plain DnsDiscovery. Let's see if it discovers peers.
Also perhaps try on the bitcoinj release-0.15 branch. It will get tagged for release soon anyway. On 20/02/2019 22.21, Ben Moore wrote: > I am currently trying to build an Android wallet using the bitcoinJ > library but I am having issue with the library downloading the > blockchain in order to synchronise correctly. I have put the blockchain > download into a seperate service in the android application in order to > make sure it doesn't block the execution of the application. Whiich I > saw here > https://github.com/bitcoin-wallet/bitcoin-wallet/blob/c306db6cf39127ccaa6cfd38ef28a2a7bf7aaf1d/wallet/src/de/schildbach/wallet/service/BlockchainService.java > <https://github.com/bitcoin-wallet/bitcoin-wallet/blob/c306db6cf39127ccaa6cfd38ef28a2a7bf7aaf1d/wallet/src/de/schildbach/wallet/service/BlockchainService.java> > > My service starts but it repeatedly just gives me the following log entry > > | > 2019-02-2021:15:57.12815495-15656/com.bitcoinwallet > W/System.err:[PeerGroupThread]INFO > org.bitcoinj.core.PeerGroup-Peerdiscovery took 9.667ms andreturned 0items > 2019-02-2021:15:57.13015495-15656/com.bitcoinwallet > W/System.err:[PeerGroupThread]INFO > org.bitcoinj.core.PeerGroup-Peerdiscovery didn't provide us any more > peers, will try again in 10017ms. > | > > And the onChanDownloadStarted function never gets called, I've tried > everything I know so I really cannot understand why it would not be > working. The service definitely starts because I see the "Blockchain > Download service started" in the logs but I don't see any of the other > logs. I'm really stumped by this problem so any help or suggestions > would be really appreciated, thanks! > > > Below you will find the code for my BlockchainDownload service > > > | > packagecom.bitcoinwallet.services > > importandroid.arch.lifecycle.LifecycleService > importandroid.content.SharedPreferences > importandroid.os.Handler > importandroid.os.PowerManager > importandroid.text.format.DateUtils > importandroid.util.Log > importcom.bitcoinwallet.utilities.Globals > importorg.bitcoinj.core.Block > importorg.bitcoinj.core.FilteredBlock > importorg.bitcoinj.core.Peer > importorg.bitcoinj.core.listeners.AbstractPeerDataEventListener > importorg.bitcoinj.net.discovery.MultiplexingDiscovery > importorg.bitcoinj.net.discovery.PeerDiscovery > importjava.net.InetSocketAddress > importjava.util.* > importjava.util.concurrent.TimeUnit > importjava.util.concurrent.atomic.AtomicLong > > classBlockchainDownloadService:LifecycleService(){ > privatelateinit varwakeLock:PowerManager.WakeLock > privatevardelayHandler =Handler() > privateval PREFS_KEY_TRUSTED_PEER ="trusted_peer" > privatelateinit varprefs:SharedPreferences > privateval maxConnectedPeers =4 > > privatevarblockchainDownloadListener > =object:AbstractPeerDataEventListener(){ > privateval lastMessageTime =AtomicLong(0) > > privateval runnable =object:Runnable{ > overridefun run(){ > lastMessageTime.set(System.currentTimeMillis()) > } > } > > overridefun onBlocksDownloaded( > peer:Peer?, > block:Block?, > filteredBlock:FilteredBlock?, > blocksLeft:Int > ){ > super.onBlocksDownloaded(peer,block,filteredBlock,blocksLeft) > > delayHandler.removeCallbacksAndMessages(null) > > varnow =System.currentTimeMillis() > > Log.d(Globals.LOG_TAG,"Block downloaded, only > "+blocksLeft.toString()+" left!") > > if(now -lastMessageTime.get()>DateUtils.SECOND_IN_MILLIS){ > delayHandler.post(runnable) > }else{ > > delayHandler.postDelayed(runnable,DateUtils.SECOND_IN_MILLIS) > } > } > > overridefun onChainDownloadStarted(peer:Peer?,blocksLeft:Int){ > super.onChainDownloadStarted(peer,blocksLeft) > Log.d(Globals.LOG_TAG,"Blockchain Downloadt started") > } > } > > overridefun onCreate(){ > super.onCreate() > val powerManager > =getSystemService(PowerManager::class.java)asPowerManager > // TODO: Change this string to a constant also > wakeLock > =powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,"BLOCKCHAIN DL > SERVICE:") > wakeLock.acquire() > Log.d(Globals.LOG_TAG,"Blockchain Download service started") > > Globals.peerGroup?.addWallet(Globals.wallet) > Globals.peerGroup?.setDownloadTxDependencies(0) > Globals.peerGroup?.setConnectTimeoutMillis(15*1000)// 15 seconds > > Globals.peerGroup?.setPeerDiscoveryTimeoutMillis(10*DateUtils.SECOND_IN_MILLIS)// > 10 seconds > // TODO: Change these to constants > Globals.peerGroup?.setUserAgent("BTC Wallet","0.1") > Globals.peerGroup?.maxConnections =maxConnectedPeers > > Globals.peerGroup?.addPeerDiscovery(object:PeerDiscovery{ > privateval normalPeerDiscovery > =MultiplexingDiscovery.forServices(Globals.networkParams,0) > overridefun getPeers( > services:Long, > timeoutValue:Long, > timeoutUnit:TimeUnit? > ):Array<InetSocketAddress>{ > val peers =LinkedList<InetSocketAddress>() > > val addr > =InetSocketAddress(PREFS_KEY_TRUSTED_PEER,Globals.networkParams.port) > > if(addr.address !=null){ > peers.add(addr) > } > > while(peers.size >=maxConnectedPeers){ > peers.removeAt(peers.size -1) > } > > returnpeers.toTypedArray() > } > > overridefun shutdown(){ > TODO("not implemented")//To change body of created > functions use File | Settings | File Templates. > normalPeerDiscovery.shutdown() > } > }) > > > Globals.peerGroup?.startAsync() > > Globals.peerGroup?.startBlockChainDownload(blockchainDownloadListener) > } > > overridefun onDestroy(){ > super.onDestroy() > delayHandler.removeCallbacksAndMessages(null) > if(wakeLock.isHeld){ > wakeLock.release() > } > > if(Globals.peerGroup?.isRunning!!){ > Globals.peerGroup?.stopAsync() > } > } > } > | > > > Here is my Globals class which is used a lot > > | > classGlobals{ > companion object{ > val LOG_TAG ="BTC WALLET:" > val WALLET_NAME ="wallet_file.dat" > val BLOCK_STORE_NAME ="block_store_file.dat" > val IS_PRODUCTION =false > //var networkParams = if (IS_PRODUCTION) > NetworkParameters.fromID(NetworkParameters.ID_MAINNET) > //else NetworkParameters.fromID(NetworkParameters.ID_TESTNET) > val networkParams:TestNet3Params > get()=TestNet3Params.get() > > varwallet :Wallet?=null > varwalletFile:File?=null > varblockStore:SPVBlockStore?=null > varblockChain:BlockChain?=null > varpeerGroup:PeerGroup?=null > } > } > | > > Also here is where everything in Globals is initialised > > | > > > classBitcoinUtilities{ > companion object{ > fun initialiseWallet(walletFile:File,blockStoreFile:File){ > Globals.walletFile =walletFile > Globals.wallet =Wallet(Globals.networkParams) > Globals.blockStore > =SPVBlockStore(Globals.networkParams,blockStoreFile) > Globals.blockChain =BlockChain( > Globals.networkParams, > Globals.wallet,Globals.blockStore > ) > Globals.peerGroup > =PeerGroup(Globals.networkParams,Globals.blockChain) > Globals.wallet!!.saveToFile(walletFile) > } > } > | > > > -- > 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. 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