Example usage for android.net ConnectivityManager CONNECTIVITY_ACTION

Introduction

In this page you can find the example usage for android.net ConnectivityManager CONNECTIVITY_ACTION.

Prototype

String CONNECTIVITY_ACTION

To view the source code for android.net ConnectivityManager CONNECTIVITY_ACTION.

Click Source Link

Document

A change in network connectivity has occurred.

Usage

From source file:eu.faircode.netguard.ActivitySettings.java

@Override
protected void onResume() {
    super.onResume();

    checkPermissions(null);//from  w  w w.j  av  a 2  s.co  m

    // Listen for preference changes
    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
    prefs.registerOnSharedPreferenceChangeListener(this);

    // Listen for interactive state changes
    IntentFilter ifInteractive = new IntentFilter();
    ifInteractive.addAction(Intent.ACTION_SCREEN_ON);
    ifInteractive.addAction(Intent.ACTION_SCREEN_OFF);
    registerReceiver(interactiveStateReceiver, ifInteractive);

    // Listen for connectivity updates
    IntentFilter ifConnectivity = new IntentFilter();
    ifConnectivity.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
    registerReceiver(connectivityChangedReceiver, ifConnectivity);
}

---

From source file:de.schildbach.wallet.marscoin.service.BlockchainServiceImpl.java

@Override
public void onCreate() {
    Log.d(TAG, ".onCreate()");

    super.onCreate();

    nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    final String lockName = getPackageName() + " blockchain sync";

    final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
    wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, lockName);

    final WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
    wifiLock = wifiManager.createWifiLock(WifiManager.WIFI_MODE_FULL, lockName);
    wifiLock.setReferenceCounted(false);

    application = (WalletApplication) getApplication();
    prefs = PreferenceManager.getDefaultSharedPreferences(this);
    final Wallet wallet = application.getWallet();

    final int versionCode = application.applicationVersionCode();
    prefs.edit().putInt(Constants.PREFS_KEY_LAST_VERSION, versionCode).commit();

    bestChainHeightEver = prefs.getInt(Constants.PREFS_KEY_BEST_CHAIN_HEIGHT_EVER, 0);

    peerConnectivityListener = new PeerConnectivityListener();

    sendBroadcastPeerState(0);/*from  w  ww .ja v  a2  s. c  om*/

    final IntentFilter intentFilter = new IntentFilter();
    intentFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
    intentFilter.addAction(Intent.ACTION_BATTERY_CHANGED);
    intentFilter.addAction(Intent.ACTION_DEVICE_STORAGE_LOW);
    intentFilter.addAction(Intent.ACTION_DEVICE_STORAGE_OK);
    registerReceiver(connectivityReceiver, intentFilter);

    blockChainFile = new File(getDir("blockstore", Context.MODE_WORLD_READABLE | Context.MODE_WORLD_WRITEABLE),
            Constants.BLOCKCHAIN_FILENAME);
    final boolean blockChainFileExists = blockChainFile.exists();

    if (!blockChainFileExists) {
        Log.d(TAG, "blockchain does not exist, resetting wallet");

        wallet.clearTransactions(0);
        copyBlockchainSnapshot(blockChainFile);
    }

    try {
        blockStore = new SPVBlockStore(Constants.NETWORK_PARAMETERS, blockChainFile);
        if (!blockChainFileExists) { // Starting from scratch
            try {
                final long earliestKeyCreationTime = wallet.getEarliestKeyCreationTime();
                final InputStream checkpointsFileIn = getAssets().open("checkpoints");
                CheckpointManager.checkpoint(Constants.NETWORK_PARAMETERS, checkpointsFileIn, blockStore,
                        earliestKeyCreationTime);
            } catch (IOException e) {
                Log.d("marscoin", "Couldn't find checkpoints file; starting from genesis");
            }
        }
        blockStore.getChainHead(); // detect corruptions as early as possible
    } catch (final BlockStoreException x) {
        blockChainFile.delete();

        x.printStackTrace();
        throw new Error("blockstore cannot be created", x);
    } catch (final NullPointerException x) {
        blockChainFile.delete();

        x.printStackTrace();
        throw new Error("blockstore cannot be created", x);
    }

    try {
        blockChain = new BlockChain(Constants.NETWORK_PARAMETERS, wallet, blockStore);
    } catch (final BlockStoreException x) {
        throw new Error("blockchain cannot be created", x);
    }

    application.getWallet().addEventListener(walletEventListener);

    registerReceiver(tickReceiver, new IntentFilter(Intent.ACTION_TIME_TICK));
}

---

From source file:de.schildbach.wallet.elysium.service.BlockchainServiceImpl.java

@Override
public void onCreate() {

    Log.d(TAG, ".onCreate()");

    super.onCreate();

    nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    final String lockName = getPackageName() + " blockchain sync";

    final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
    wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, lockName);

    final WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
    wifiLock = wifiManager.createWifiLock(WifiManager.WIFI_MODE_FULL, lockName);
    wifiLock.setReferenceCounted(false);

    application = (WalletApplication) getApplication();
    prefs = PreferenceManager.getDefaultSharedPreferences(this);
    final Wallet wallet = application.getWallet();

    final int versionCode = application.applicationVersionCode();
    prefs.edit().putInt(Constants.PREFS_KEY_LAST_VERSION, versionCode).commit();

    bestChainHeightEver = prefs.getInt(Constants.PREFS_KEY_BEST_CHAIN_HEIGHT_EVER, 0);

    peerConnectivityListener = new PeerConnectivityListener();

    sendBroadcastPeerState(0);/*from   www  . jav  a  2  s.co m*/

    final IntentFilter intentFilter = new IntentFilter();
    intentFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
    intentFilter.addAction(Intent.ACTION_BATTERY_CHANGED);
    intentFilter.addAction(Intent.ACTION_DEVICE_STORAGE_LOW);
    intentFilter.addAction(Intent.ACTION_DEVICE_STORAGE_OK);
    registerReceiver(connectivityReceiver, intentFilter);

    blockChainFile = new File(getDir("blockstore", Context.MODE_WORLD_READABLE | Context.MODE_WORLD_WRITEABLE),
            Constants.BLOCKCHAIN_FILENAME);
    final boolean blockChainFileExists = blockChainFile.exists();

    if (!blockChainFileExists) {
        Log.d(TAG, "blockchain does not exist, resetting wallet");

        wallet.clearTransactions(0);
        copyBlockchainSnapshot(blockChainFile);
    }

    try {
        blockStore = new SPVBlockStore(Constants.NETWORK_PARAMETERS, blockChainFile);

        if (!blockChainFileExists) { // Starting from scratch
            try {
                final long earliestKeyCreationTime = wallet.getEarliestKeyCreationTime();
                final InputStream checkpointsFileIn = getAssets().open("checkpoints");
                CheckpointManager.checkpoint(Constants.NETWORK_PARAMETERS, checkpointsFileIn, blockStore,
                        earliestKeyCreationTime);
            } catch (IOException e) {
                Log.d("Elysium", "Couldn't find checkpoints file; starting from genesis");

            }
        }
        blockStore.getChainHead(); // detect corruptions as early as possible

    } catch (final BlockStoreException x) {
        blockChainFile.delete();

        x.printStackTrace();

        throw new Error("blockstore cannot be created", x);
    } catch (final NullPointerException x) {
        blockChainFile.delete();

        x.printStackTrace();
        throw new Error("blockstore cannot be created", x);
    }

    try {

        blockChain = new BlockChain(Constants.NETWORK_PARAMETERS, wallet, blockStore);

    } catch (final BlockStoreException x) {
        throw new Error("blockchain cannot be created", x);
    }

    application.getWallet().addEventListener(walletEventListener);

    registerReceiver(tickReceiver, new IntentFilter(Intent.ACTION_TIME_TICK));

}

---

From source file:net.kidlogger.kidlogger.KLService.java

public void setupLogging() {
    // Set up GPS / Network logging      
    if (Settings.loggingGps(this)) {
        startGpsUpdates();/*from w  w  w . j a  v  a 2s.co m*/
        gpsOn = true;
    }

    // Set up WiFi logging
    if (Settings.loggingWifi(this)) {
        wifiReceiver = new WifiReceiver(this);
        registerReceiver(wifiReceiver, new IntentFilter(WifiManager.NETWORK_STATE_CHANGED_ACTION));
        wifiOn = true;
    }

    // Set up SMS logging
    if (Settings.loggingSms(this)) {
        smsObserver = new SmsObserver(this, handlering);
        IntentFilter smsFilter = new IntentFilter(SMS_RECEIVED);
        registerReceiver(smsObserver.inSms, smsFilter);
        smsOn = true;
    }

    // Set up Calls logging
    if (Settings.loggingCalls(this)) {
        IntentFilter callsFilter = new IntentFilter(TelephonyManager.ACTION_PHONE_STATE_CHANGED);

        callsReceiver = new CallsReceiver(this);
        registerReceiver(callsReceiver, callsFilter);
        callOn = true;
    }

    // Set up Idle logging
    IntentFilter idleFilter = new IntentFilter(Intent.ACTION_SCREEN_OFF);
    idleFilter.addAction(Intent.ACTION_USER_PRESENT);

    idleReceiver = new IdleReceiver(this);
    registerReceiver(idleReceiver, idleFilter);
    idleOn = true;
    /*if(Settings.loggingIdle(this)){
       IntentFilter idleFilter = new IntentFilter(Intent.ACTION_SCREEN_OFF);
       idleFilter.addAction(Intent.ACTION_USER_PRESENT);
               
       idleReceiver = new IdleReceiver(this);
       registerReceiver(idleReceiver, idleFilter);
       idleOn = true;
    }*/

    // Set up URL logging
    if (Settings.loggingUrl(this)) {
        urlObserver = new HistoryObserver(this, handlering);
        urlOn = true;
    }

    // Set up USB logging
    if (Settings.loggingUsb(this)) {
        IntentFilter usbFilter = new IntentFilter(Intent.ACTION_UMS_CONNECTED);
        usbFilter.addAction(Intent.ACTION_UMS_DISCONNECTED);

        usbReceiver = new UsbReceiver(this);
        registerReceiver(usbReceiver, usbFilter);
        usbOn = true;
    }

    // Set up Tasks logging
    if (logTask) {
        // Check if a new Application was started
        taskScan = new Runnable() {
            public void run() {
                new Thread(new Runnable() {
                    public void run() {
                        doScanTask();
                    }
                }).start();
                if (userPresent) {
                    handleTask.postDelayed(this, SCAN_TASK_TIME);
                    scanningTask = true;
                } else {
                    scanningTask = false;
                }
            }
        };
        handleTask.postDelayed(taskScan, SCAN_TASK_TIME);
        taskOn = true;
    }

    // Set up Clipboard logging
    if (logClip) {
        // Scan clipboard content, only first 30 characters
        clipboardScan = new Runnable() {
            public void run() {
                new Thread(new Runnable() {
                    public void run() {
                        doScanClipboard();
                    }
                }).start();
                if (userPresent) {
                    handleClipb.postDelayed(this, SCAN_CLIP_TIME);
                    scanningClip = true;
                } else {
                    scanningClip = false;
                }
            }
        };
        handleClipb.postDelayed(clipboardScan, SCAN_CLIP_TIME);
        clipOn = true;
    }

    // Set up Power logging
    if (Settings.loggingPower(this)) {
        IntentFilter powerFilter = new IntentFilter(Intent.ACTION_SHUTDOWN);

        powerReceiver = new ShutdownReceiver(this);
        registerReceiver(powerReceiver, powerFilter);
        powerOn = true;
    }

    // Set up Memory Card logging
    if (Settings.loggingMedia(this)) {
        IntentFilter mediaFilter = new IntentFilter(Intent.ACTION_MEDIA_REMOVED);
        mediaFilter.addAction(Intent.ACTION_MEDIA_BAD_REMOVAL);
        mediaFilter.addAction(Intent.ACTION_MEDIA_MOUNTED);
        mediaFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED);
        mediaFilter.addAction(Intent.ACTION_MEDIA_SHARED);
        mediaFilter.addDataScheme("file");

        mediaReceiver = new MediaReceiver(this);
        registerReceiver(mediaReceiver, mediaFilter);

        mediaOn = true;
    }

    // Set up GSM logging
    if (Settings.loggingGsm(this)) {
        gsmObserver = new GsmObserver(this);
        telManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
        telManager.listen(gsmObserver,
                PhoneStateListener.LISTEN_SERVICE_STATE | PhoneStateListener.LISTEN_CELL_LOCATION);
        gsmOn = true;
    }

    // Set up Airplane mode receiver
    if (Settings.loggingAir(this)) {
        IntentFilter airFilter = new IntentFilter(Intent.ACTION_AIRPLANE_MODE_CHANGED);

        airReceiver = new AirplaneReceiver(this);
        registerReceiver(airReceiver, airFilter);
        airOn = true;
    }

    // Set up Photos logging
    if (Settings.loggingPhotos(this)) {
        photoObserver = new PhotoObserver(this, this, handlering);
        photoOn = true;
    }

    // Set up SliceMultimediaFile
    if (Settings.uploadPhotos(this) || Settings.uploadRecords(this)) {
        mediaSlicer = new SliceMultimediaFile(this);
    }

    // Set up ConnectivityReceiver
    mConReceiver = new ConnectivityReceiver(this);
    registerReceiver(mConReceiver, new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));

    // Ser up CallIntentReceiver
    //outCallReceiver = new CallIntentReceiver();
    //registerReceiver(outCallReceiver, new IntentFilter(KLService.OUTGOING_CALL));
}

---

From source file:devcoin.wallet.service.BlockchainServiceImpl.java

@Override
public void onCreate() {
    serviceCreatedAt = System.currentTimeMillis();
    log.debug(".onCreate()");

    super.onCreate();

    nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    final String lockName = getPackageName() + " blockchain sync";

    final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
    wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, lockName);

    final WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
    wifiLock = wifiManager.createWifiLock(WifiManager.WIFI_MODE_FULL, lockName);
    wifiLock.setReferenceCounted(false);

    application = (WalletApplication) getApplication();
    prefs = PreferenceManager.getDefaultSharedPreferences(this);
    final Wallet wallet = application.getWallet();

    bestChainHeightEver = prefs.getInt(Constants.PREFS_KEY_BEST_CHAIN_HEIGHT_EVER, 0);

    peerConnectivityListener = new PeerConnectivityListener();

    sendBroadcastPeerState(0);// w w  w.  ja v a2 s . c  o m

    final IntentFilter intentFilter = new IntentFilter();
    intentFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
    intentFilter.addAction(Intent.ACTION_DEVICE_STORAGE_LOW);
    intentFilter.addAction(Intent.ACTION_DEVICE_STORAGE_OK);
    registerReceiver(connectivityReceiver, intentFilter);

    blockChainFile = new File(getDir("blockstore", Context.MODE_PRIVATE), Constants.BLOCKCHAIN_FILENAME);
    final boolean blockChainFileExists = blockChainFile.exists();

    if (!blockChainFileExists) {
        log.info("blockchain does not exist, resetting wallet");

        wallet.clearTransactions(0);
        wallet.setLastBlockSeenHeight(-1); // magic value
        wallet.setLastBlockSeenHash(null);
    }

    try {
        blockStore = new SPVBlockStore(Constants.NETWORK_PARAMETERS, blockChainFile);
        blockStore.getChainHead(); // detect corruptions as early as possible

        final long earliestKeyCreationTime = wallet.getEarliestKeyCreationTime();

        if (!blockChainFileExists && earliestKeyCreationTime > 0) {
            try {
                final InputStream checkpointsInputStream = getAssets().open(Constants.CHECKPOINTS_FILENAME);
                CheckpointManager.checkpoint(Constants.NETWORK_PARAMETERS, checkpointsInputStream, blockStore,
                        earliestKeyCreationTime);
            } catch (final IOException x) {
                log.error("problem reading checkpoints, continuing without", x);
            }
        }
    } catch (final BlockStoreException x) {
        blockChainFile.delete();

        final String msg = "blockstore cannot be created";
        log.error(msg, x);
        throw new Error(msg, x);
    }

    log.info("using " + blockStore.getClass().getName());

    try {
        blockChain = new BlockChain(Constants.NETWORK_PARAMETERS, wallet, blockStore);
    } catch (final BlockStoreException x) {
        throw new Error("blockchain cannot be created", x);
    }

    application.getWallet().addEventListener(walletEventListener);

    registerReceiver(tickReceiver, new IntentFilter(Intent.ACTION_TIME_TICK));

    maybeRotateKeys();
}

---

From source file:com.bushstar.htmlcoin_android_wallet.service.BlockchainServiceImpl.java

@Override
public void onCreate() {
    serviceCreatedAt = System.currentTimeMillis();
    log.debug(".onCreate()");

    super.onCreate();

    nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    final String lockName = getPackageName() + " blockchain sync";

    final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
    wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, lockName);

    application = (WalletApplication) getApplication();
    config = application.getConfiguration();
    final Wallet wallet = application.getWallet();

    bestChainHeightEver = config.getBestChainHeightEver();

    peerConnectivityListener = new PeerConnectivityListener();

    sendBroadcastPeerState(0);//from ww  w . j  a  v  a  2 s . c  o  m

    final IntentFilter intentFilter = new IntentFilter();
    intentFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
    intentFilter.addAction(Intent.ACTION_DEVICE_STORAGE_LOW);
    intentFilter.addAction(Intent.ACTION_DEVICE_STORAGE_OK);
    registerReceiver(connectivityReceiver, intentFilter);

    blockChainFile = new File(getDir("blockstore", Context.MODE_PRIVATE), Constants.BLOCKCHAIN_FILENAME);
    final boolean blockChainFileExists = blockChainFile.exists();

    if (!blockChainFileExists) {
        log.info("blockchain does not exist, resetting wallet");

        wallet.clearTransactions(0);
        wallet.setLastBlockSeenHeight(-1); // magic value
        wallet.setLastBlockSeenHash(null);
    }

    try {
        blockStore = new SPVBlockStore(Constants.NETWORK_PARAMETERS, blockChainFile);
        blockStore.getChainHead(); // detect corruptions as early as possible
    } catch (final BlockStoreException x) {
        blockChainFile.delete();

        final String msg = "blockstore cannot be created";
        log.error(msg, x);
        throw new Error(msg, x);
    }

    log.info("using " + blockStore.getClass().getName());

    validHashStoreFile = new File(getDir("validhashes", Context.MODE_PRIVATE), Constants.VALID_HASHES_FILENAME);

    try {
        validHashStore = new ValidHashStore(validHashStoreFile);
    } catch (IOException x) {
        validHashStoreFile.delete();
        final String msg = "validhashstore cannot be created";
        log.error(msg, x);
        throw new Error(msg, x);
    }

    try {
        blockChain = new BlockChain(Constants.NETWORK_PARAMETERS, wallet, blockStore, validHashStore);
    } catch (final BlockStoreException x) {
        throw new Error("blockchain cannot be created", x);
    }

    application.getWallet().addEventListener(walletEventListener, Threading.SAME_THREAD);

    registerReceiver(tickReceiver, new IntentFilter(Intent.ACTION_TIME_TICK));

    maybeRotateKeys();
}

---

From source file:it.unipr.ce.dsg.gamidroid.activities.NAM4JAndroidActivity.java

@Override
public void onStart() {

    super.onStart();

    if (mGoogleApiClient != null)
        mGoogleApiClient.connect();//from w  ww.j  a  va2 s  .c  o m

    // Registering the broadcast receivers
    //registerReceiver(bReceiver, new IntentFilter(Constants.RECEIVED_RESOURCES_UPDATE));

    registerReceiver(mConnReceiver, new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));

    registerReceiver(wifiReceiver, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));

    registerReceiver(batteryReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));

}

---

From source file:biz.wiz.android.wallet.service.BlockchainServiceImpl.java

@Override
public void onCreate() {
    serviceCreatedAt = System.currentTimeMillis();
    log.debug(".onCreate()");

    super.onCreate();

    nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    final String lockName = getPackageName() + " blockchain sync";

    final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
    wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, lockName);

    application = (WalletApplication) getApplication();
    config = application.getConfiguration();
    final Wallet wallet = application.getWallet();

    peerConnectivityListener = new PeerConnectivityListener();

    broadcastPeerState(0);//  w ww  .  j  a v a 2  s.co  m

    blockChainFile = new File(getDir("blockstore", Context.MODE_PRIVATE), Constants.Files.BLOCKCHAIN_FILENAME);
    final boolean blockChainFileExists = blockChainFile.exists();

    if (!blockChainFileExists) {
        log.info("blockchain does not exist, resetting wallet");

        wallet.clearTransactions(0);
        wallet.setLastBlockSeenHeight(-1); // magic value
        wallet.setLastBlockSeenHash(null);
    }

    try {
        blockStore = new SPVBlockStore(Constants.NETWORK_PARAMETERS, blockChainFile);
        blockStore.getChainHead(); // detect corruptions as early as possible

        final long earliestKeyCreationTime = wallet.getEarliestKeyCreationTime();

        if (!blockChainFileExists && earliestKeyCreationTime > 0) {
            try {
                final InputStream checkpointsInputStream = getAssets()
                        .open(Constants.Files.CHECKPOINTS_FILENAME);
                CheckpointManager.checkpoint(Constants.NETWORK_PARAMETERS, checkpointsInputStream, blockStore,
                        earliestKeyCreationTime);
            } catch (final IOException x) {
                log.error("problem reading checkpoints, continuing without", x);
            }
        }
    } catch (final BlockStoreException x) {
        blockChainFile.delete();

        final String msg = "blockstore cannot be created";
        log.error(msg, x);
        throw new Error(msg, x);
    }

    try {
        blockChain = new BlockChain(Constants.NETWORK_PARAMETERS, wallet, blockStore);
    } catch (final BlockStoreException x) {
        throw new Error("blockchain cannot be created", x);
    }

    final IntentFilter intentFilter = new IntentFilter();
    intentFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
    intentFilter.addAction(Intent.ACTION_DEVICE_STORAGE_LOW);
    intentFilter.addAction(Intent.ACTION_DEVICE_STORAGE_OK);
    registerReceiver(connectivityReceiver, intentFilter); // implicitly start PeerGroup

    application.getWallet().addEventListener(walletEventListener, Threading.SAME_THREAD);

    registerReceiver(tickReceiver, new IntentFilter(Intent.ACTION_TIME_TICK));
}

---

From source file:org.hopestarter.wallet.service.BlockchainServiceImpl.java

@Override
public void onCreate() {
    serviceCreatedAt = System.currentTimeMillis();
    log.debug(".onCreate()");

    super.onCreate();

    nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    final String lockName = getPackageName() + " blockchain sync";

    final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
    wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, lockName);

    application = (WalletApplication) getApplication();
    config = application.getConfiguration();
    final Wallet wallet = application.getWallet();

    peerConnectivityListener = new PeerConnectivityListener();

    broadcastPeerState(0);//from  ww w. j a v a 2  s.c  o m

    blockChainFile = new File(getDir("blockstore", Context.MODE_PRIVATE), Constants.Files.BLOCKCHAIN_FILENAME);
    final boolean blockChainFileExists = blockChainFile.exists();

    if (!blockChainFileExists) {
        log.info("blockchain does not exist, resetting wallet");
        wallet.reset();
    }

    try {
        blockStore = new SPVBlockStore(Constants.NETWORK_PARAMETERS, blockChainFile);
        blockStore.getChainHead(); // detect corruptions as early as possible

        final long earliestKeyCreationTime = wallet.getEarliestKeyCreationTime();

        if (!blockChainFileExists && earliestKeyCreationTime > 0) {
            try {
                final long start = System.currentTimeMillis();
                final InputStream checkpointsInputStream = getAssets()
                        .open(Constants.Files.CHECKPOINTS_FILENAME);
                CheckpointManager.checkpoint(Constants.NETWORK_PARAMETERS, checkpointsInputStream, blockStore,
                        earliestKeyCreationTime);
                log.info("checkpoints loaded from '{}', took {}ms", Constants.Files.CHECKPOINTS_FILENAME,
                        System.currentTimeMillis() - start);
            } catch (final IOException x) {
                log.error("problem reading checkpoints, continuing without", x);
            }
        }
    } catch (final BlockStoreException x) {
        blockChainFile.delete();

        final String msg = "blockstore cannot be created";
        log.error(msg, x);
        throw new Error(msg, x);
    }

    try {
        blockChain = new BlockChain(Constants.NETWORK_PARAMETERS, wallet, blockStore);
    } catch (final BlockStoreException x) {
        throw new Error("blockchain cannot be created", x);
    }

    final IntentFilter intentFilter = new IntentFilter();
    intentFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
    intentFilter.addAction(Intent.ACTION_DEVICE_STORAGE_LOW);
    intentFilter.addAction(Intent.ACTION_DEVICE_STORAGE_OK);
    registerReceiver(connectivityReceiver, intentFilter); // implicitly start PeerGroup

    application.getWallet().addEventListener(walletEventListener, Threading.SAME_THREAD);

    registerReceiver(tickReceiver, new IntentFilter(Intent.ACTION_TIME_TICK));
}

---

From source file:mintcoin.wallet.service.BlockchainServiceImpl.java

@Override
public void onCreate() {
    serviceCreatedAt = System.currentTimeMillis();
    log.debug(".onCreate()");

    super.onCreate();

    nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    final String lockName = getPackageName() + " blockchain sync";

    final PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
    wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, lockName);

    application = (WalletApplication) getApplication();
    config = application.getConfiguration();
    final Wallet wallet = application.getWallet();

    peerConnectivityListener = new PeerConnectivityListener();

    broadcastPeerState(0);//w  w w.  jav a  2 s .co  m

    blockChainFile = new File(getDir("blockstore", Context.MODE_PRIVATE), Constants.Files.BLOCKCHAIN_FILENAME);
    final boolean blockChainFileExists = blockChainFile.exists();

    if (!blockChainFileExists) {
        log.info("blockchain does not exist, resetting wallet");

        wallet.clearTransactions(0);
        wallet.setLastBlockSeenHeight(-1); // magic value
        wallet.setLastBlockSeenHash(null);
    }

    try {
        blockStore = new SPVBlockStore(Constants.NETWORK_PARAMETERS, blockChainFile);
        blockStore.getChainHead(); // detect corruptions as early as possible

        final long earliestKeyCreationTime = wallet.getEarliestKeyCreationTime();

        if (!blockChainFileExists && earliestKeyCreationTime > 0) {
            try {
                final long start = System.currentTimeMillis();
                final InputStream checkpointsInputStream = getAssets()
                        .open(Constants.Files.CHECKPOINTS_FILENAME);
                CheckpointManager.checkpoint(Constants.NETWORK_PARAMETERS, checkpointsInputStream, blockStore,
                        earliestKeyCreationTime);
                log.info("checkpoints loaded from '{}', took {}ms", Constants.Files.CHECKPOINTS_FILENAME,
                        System.currentTimeMillis() - start);
            } catch (final IOException x) {
                log.error("problem reading checkpoints, continuing without", x);
            }
        }
    } catch (final BlockStoreException x) {
        blockChainFile.delete();

        final String msg = "blockstore cannot be created";
        log.error(msg, x);
        throw new Error(msg, x);
    }

    try {
        blockChain = new BlockChain(Constants.NETWORK_PARAMETERS, wallet, blockStore);
    } catch (final BlockStoreException x) {
        throw new Error("blockchain cannot be created", x);
    }

    final IntentFilter intentFilter = new IntentFilter();
    intentFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
    intentFilter.addAction(Intent.ACTION_DEVICE_STORAGE_LOW);
    intentFilter.addAction(Intent.ACTION_DEVICE_STORAGE_OK);
    registerReceiver(connectivityReceiver, intentFilter); // implicitly start PeerGroup

    application.getWallet().addEventListener(walletEventListener, Threading.SAME_THREAD);

    registerReceiver(tickReceiver, new IntentFilter(Intent.ACTION_TIME_TICK));
}

---

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