Example usage for android.os Process THREAD_PRIORITY_BACKGROUND

Introduction

In this page you can find the example usage for android.os Process THREAD_PRIORITY_BACKGROUND.

Prototype

int THREAD_PRIORITY_BACKGROUND

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Document

Standard priority background threads.

Usage

From source file:com.snda.mymarket.providers.downloads.DownloadTask.java

/**
 * Executes the download in a separate thread
 *//*from w  w  w.  j a va 2s  . c  om*/
public void run() {
    if (mInfo.mStatus != Downloads.STATUS_RUNNING) {
        mInfo.mStatus = Downloads.STATUS_RUNNING;
        ContentValues values = new ContentValues();
        values.put(Downloads.COLUMN_STATUS, mInfo.mStatus);
        mContext.getContentResolver().update(mInfo.getAllDownloadsUri(), values, null, null);
    } else {
        if (Constants.LOGV) {
            Log.v(Constants.TAG, "download status is: " + mInfo.mStatus);
        }
    }

    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);

    State state = new State(mInfo);
    HttpStack client = null;
    PowerManager.WakeLock wakeLock = null;
    int finalStatus = Downloads.STATUS_UNKNOWN_ERROR;

    try {
        PowerManager pm = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
        wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, Constants.TAG);
        wakeLock.acquire();

        if (Constants.LOGV) {
            Log.v(Constants.TAG, "initiating download for " + mInfo.mUri);
        }

        if (Build.VERSION.SDK_INT >= 9) {
            client = new HurlStack();
        } else {
            // Prior to Gingerbread, HttpUrlConnection was unreliable.
            // See: http://android-developers.blogspot.com/2011/09/androids-http-clients.html
            client = new HttpClientStack(AndroidHttpClient.newInstance(userAgent()));
        }

        boolean finished = false;
        while (!finished) {
            Log.i(Constants.TAG, "Initiating request for download " + mInfo.mId);
            HttpGet request = new HttpGet(state.mRequestUri);
            try {
                executeDownload(state, client, request);
                finished = true;
            } catch (RetryDownload exc) {
                // fall through
            } finally {
                request.abort();
                request = null;
            }
        }

        if (Constants.LOGV) {
            Log.v(Constants.TAG, "download completed for " + mInfo.mUri);
        }
        finalizeDestinationFile(state);
        finalStatus = Downloads.STATUS_SUCCESS;
    } catch (StopRequest error) {
        // remove the cause before printing, in case it contains PII
        Log.w(Constants.TAG, "Aborting request for download " + mInfo.mId + ": " + error.getMessage());
        finalStatus = error.mFinalStatus;
        // fall through to finally block
    } catch (Throwable ex) { // sometimes the socket code throws unchecked
        // exceptions
        Log.w(Constants.TAG, "Exception for id " + mInfo.mId + ": " + ex);
        finalStatus = Downloads.STATUS_UNKNOWN_ERROR;
        // falls through to the code that reports an error
    } finally {
        mNotifer.notifyDownloadSpeed(mInfo.mId, 0);

        if (wakeLock != null) {
            wakeLock.release();
            wakeLock = null;
        }
        if (client != null) {
            try {
                client.close();
                client = null;
            } catch (IOException e) {
                e.printStackTrace();
                finalStatus = Downloads.STATUS_UNKNOWN_ERROR;
            }
        }
        cleanupDestination(state, finalStatus);
        notifyDownloadCompleted(finalStatus, state.mCountRetry, state.mRetryAfter, state.mGotData,
                state.mFilename, state.mNewUri, state.mMimeType);
        mInfo.cancelTask();
    }
}

---

From source file:de.schildbach.wallet.ui.send.RaiseFeeDialogFragment.java

@Override
public void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    viewModel = ViewModelProviders.of(this).get(ViewModel.class);
    viewModel.getDynamicFees().observe(this, new Observer<Map<FeeCategory, Coin>>() {
        @Override/*w  w  w.j a  va 2 s . c o  m*/
        public void onChanged(final Map<FeeCategory, Coin> dynamicFees) {
            // We basically have to pay fee for two transactions:
            // The transaction to raise the fee of and the CPFP transaction we're about to create.
            final int size = transaction.getMessageSize() + 192;
            feeRaise = dynamicFees.get(FeeCategory.PRIORITY).multiply(size).divide(1000);
            updateView();
        }
    });

    final Bundle args = getArguments();
    final byte[] txHash = (byte[]) args.getSerializable(KEY_TRANSACTION);
    transaction = checkNotNull(wallet.getTransaction(Sha256Hash.wrap(txHash)));

    backgroundThread = new HandlerThread("backgroundThread", Process.THREAD_PRIORITY_BACKGROUND);
    backgroundThread.start();
    backgroundHandler = new Handler(backgroundThread.getLooper());
}

---

From source file:de.schildbach.wallet.ui.BackupWalletToSeedDialogFragment.java

@Override
public Dialog onCreateDialog(final Bundle savedInstanceState) {
    final View view = LayoutInflater.from(activity).inflate(R.layout.backup_wallet_to_seed_dialog, null);

    seedView = (TextView) view.findViewById(R.id.backup_wallet_dialog_seed);
    privateKeyPasswordViewGroup = view.findViewById(R.id.backup_wallet_seed_private_key_password_group);
    privateKeyPasswordView = (EditText) view.findViewById(R.id.backup_wallet_seed_private_key_password);
    privateKeyBadPasswordView = (TextView) view.findViewById(R.id.backup_wallet_seed_private_key_bad_password);
    showMnemonicSeedButton = (Button) view.findViewById(R.id.backup_wallet_seed_private_key_enter);
    seedViewGroup = view.findViewById(R.id.backup_wallet_seed_group);
    writtenDown = (CheckBox) view.findViewById(R.id.backup_wallet_seed_private_key_written_down);

    fingerprintView = view.findViewById(R.id.fingerprint_view);
    privateKeyPasswordViewGroup.setVisibility(wallet.isEncrypted() ? View.VISIBLE : View.GONE);

    privateKeyPasswordView.addTextChangedListener(privateKeyPasswordListener);
    showMnemonicSeedButton.setOnClickListener(new OnClickListener() {
        @Override//from  www  .ja  v a 2  s.c  o  m
        public void onClick(View v) {
            handleDecryptPIN();
        }
    });
    if (wallet.isEncrypted()) {
        backgroundThread = new HandlerThread("backgroundThread", Process.THREAD_PRIORITY_BACKGROUND);
        backgroundThread.start();
        backgroundHandler = new Handler(backgroundThread.getLooper());
        showPasswordViewGroup(true);
        updateView(false);
    } else {
        showMnemonicSeed(wallet.getActiveKeyChain().getSeed());
        updateView(true);
    }

    final DialogBuilder builder = new DialogBuilder(activity);
    builder.setTitle(R.string.export_keys_dialog_title);
    builder.setView(view);
    builder.setCancelable(false);
    builder.setPositiveButton(R.string.button_dismiss, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            if (writtenDown.isChecked()) {
                config.disarmBackupSeedReminder();
            }
            privateKeyPasswordView.removeTextChangedListener(privateKeyPasswordListener);
            if (getArguments().getBoolean(ARGS_IS_UPGRADING, false)
                    && activity instanceof UpgradeWalletDisclaimerDialog.OnUpgradeConfirmedListener) {
                ((UpgradeWalletDisclaimerDialog.OnUpgradeConfirmedListener) activity).onUpgradeConfirmed();
            }
        }
    });

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        initFingerprintHelper();
    }

    return builder.create();
}

---

From source file:paulscode.android.mupen64plusae.task.ExtractTexturesService.java

@Override
public void onCreate() {
    // Start up the thread running the service.  Note that we create a
    // separate thread because the service normally runs in the process's
    // main thread, which we don't want to block.  We also make it
    // background priority so CPU-intensive work will not disrupt our UI.
    HandlerThread thread = new HandlerThread("ServiceStartArguments", Process.THREAD_PRIORITY_BACKGROUND);
    thread.start();// w w  w .  java 2  s .c o  m

    // Get the HandlerThread's Looper and use it for our Handler
    mServiceLooper = thread.getLooper();
    mServiceHandler = new ServiceHandler(mServiceLooper);

    //Show the notification
    Intent notificationIntent = new Intent(this, GalleryActivity.class);
    PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
    NotificationCompat.Builder builder = new NotificationCompat.Builder(this).setSmallIcon(R.drawable.icon)
            .setContentTitle(getString(R.string.pathHiResTexturesTask_title))
            .setContentText(getString(R.string.toast_pleaseWait)).setContentIntent(pendingIntent);
    startForeground(ONGOING_NOTIFICATION_ID, builder.build());
}

---

From source file:io.n7.calendar.caldav.CalDAVService.java

@Override
public void onCreate() {
    mCR = getContentResolver();/*from ww w  . ja v  a2s.com*/
    // Check if there are any CalDAV accounts setup.
    // Check if the CalDAV calendars are present in the provider DB. If not, create.
    // Start Sync for all CalDAV calendars.
    mContext = this;
    HandlerThread thread = new HandlerThread("CalDAVService", Process.THREAD_PRIORITY_BACKGROUND);
    thread.start();

    mServiceLooper = thread.getLooper();
    mServiceHandler = new IncomingHandler(mServiceLooper);
    mMessenger = new Messenger(mServiceHandler);

}

---

From source file:tree.love.providers.downloads.DownloadThread.java

@Override
public void run() {
    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
    try {/*from   ww w  .  ja v a2  s . c  om*/
        runInternal();
    } finally {
        mNotifier.notifyDownloadSpeed(mInfo.mId, 0);
    }
}

---

From source file:com.cerema.cloud2.files.services.FileUploader.java

/**
 * Service initialization//www  .  j  a  va 2  s.c om
 */
@Override
public void onCreate() {
    super.onCreate();
    Log_OC.d(TAG, "Creating service");
    mNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    HandlerThread thread = new HandlerThread("FileUploaderThread", Process.THREAD_PRIORITY_BACKGROUND);
    thread.start();
    mServiceLooper = thread.getLooper();
    mServiceHandler = new ServiceHandler(mServiceLooper, this);
    mBinder = new FileUploaderBinder();

    // add AccountsUpdatedListener
    AccountManager am = AccountManager.get(getApplicationContext());
    am.addOnAccountsUpdatedListener(this, null, false);
}

---

From source file:com.akop.bach.ImageCache.java

public void run() {
    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);

    while (true) {
        try {/*from w w w  . j a  va2s.com*/
            mCurrentTask = mTasks.take();
            if (mCurrentTask.alwaysRun || mListeners.contains(mCurrentTask.listener)) {
                mBusy = true;

                // Load bitmap
                Bitmap bmp = loadBitmapSynchronous(mCurrentTask.imageUrl, mCurrentTask.cachePol);

                if (mCurrentTask.alwaysRun || mListeners.contains(mCurrentTask.listener))
                    mCurrentTask.listener.onImageReady(mCurrentTask.id, mCurrentTask.param, bmp);

                mCurrentTask = null;
            }
        } catch (Exception e) {
            if (App.getConfig().logToConsole()) {
                App.logv("Error running task", e);
                e.printStackTrace();
            }
        }

        mBusy = false;
    }
}

---

From source file:com.ifeng.util.download.DownloadThread.java

/**
 * Executes the download in a separate thread
 *//*from   w w w  .j a va2  s  .  co  m*/
@Override
public void run() {
    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);

    State state = new State(mInfo);
    ProxyHttpClient client = null;
    PowerManager.WakeLock wakeLock = null;
    int finalStatus = Downloads.Impl.STATUS_UNKNOWN_ERROR;

    try {
        PowerManager pm = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
        wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, Constants.TAG);
        wakeLock.acquire();

        if (Constants.LOGV) {
            Log.v(Constants.TAG, "initiating download for " + mInfo.mUri);
        }

        client = new ProxyHttpClient(mContext, userAgent());
        boolean finished = false;
        while (!finished) {
            Log.i(Constants.TAG, "Initiating request for download " + mInfo.mId);
            HttpGet request = new HttpGet(state.mRequestUri.trim());
            try {
                executeDownload(state, client, request);
                finished = true;
            } catch (RetryDownload exc) {
                // fall through
                exc.printStackTrace();
            } finally {
                request.abort();
                request = null;
            }
        }

        if (Constants.LOGV) {
            Log.v(Constants.TAG, "download completed for " + mInfo.mUri);
        }
        finalizeDestinationFile(state);
        finalStatus = Downloads.Impl.STATUS_SUCCESS;
    } catch (StopRequest error) {
        // remove the cause before printing, in case it contains PII
        Log.w(Constants.TAG, "Aborting request for download " + mInfo.mId + ": " + error.getMessage());
        Log.w(Constants.TAG, "download error:", error);
        finalStatus = error.mFinalStatus;
        displayMsg(finalStatus, error.getMessage());
        // 
        mInfo.mFailedReason = mInfo.mFailedReason + " |||| " + Utils.getStackTraceString(error);
        // fall through to finally block
    } catch (Throwable ex) { // sometimes the socket code throws unchecked
        // exceptions
        Log.w(Constants.TAG, "Exception for id " + mInfo.mId + ": " + ex);
        Log.w(Constants.TAG, "download error:", ex);
        finalStatus = Downloads.Impl.STATUS_UNKNOWN_ERROR;
        displayMsg(finalStatus, ex.getMessage());
        // 
        mInfo.mFailedReason = mInfo.mFailedReason + "||||" + Utils.getStackTraceString(ex);
        // falls through to the code that reports an error
    } finally {
        if (wakeLock != null) {
            wakeLock.release();
            wakeLock = null;
        }
        if (client != null) {
            client.close();
            client = null;
        }
        cleanupDestination(state, finalStatus);

        notifyDownloadCompleted(finalStatus, state.mCountRetry, state.mRetryAfter, state.mRedirectCount,
                state.mGotData, state.mFilename, state.mNewUri, state.mMimeType);

        --DownloadService.mCurrentThreadNum;
        if (!Downloads.Impl.isStatusCompleted(finalStatus)) {
            mInfo.mHasActiveThread = false;
        }
    }
}

---

From source file:de.pixart.messenger.ui.ScanActivity.java

@Override
public void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);

    setContentView(R.layout.activity_scan);
    scannerView = findViewById(R.id.scan_activity_mask);
    previewView = findViewById(R.id.scan_activity_preview);
    previewView.setSurfaceTextureListener(this);

    cameraThread = new HandlerThread("cameraThread", Process.THREAD_PRIORITY_BACKGROUND);
    cameraThread.start();// w  w  w . j a  v a 2  s  .co m
    cameraHandler = new Handler(cameraThread.getLooper());
}

---

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