Example usage for java.util List isEmpty

Introduction

In this page you can find the example usage for java.util List isEmpty.

Prototype

boolean isEmpty();

Source Link

Document

Returns true if this list contains no elements.

Usage

From source file:Main.java

/**
 * Utility method to check if a shortcut can be added to the home screen.
 * @param context Context used to get the package manager.
 * @return if a shortcut can be added to the home screen under the current profile.
 *//*from   w w  w  .  j  a  v a  2 s.  com*/
// TODO(crbug.com/635567): Fix this properly.
@SuppressLint("WrongConstant")
public static boolean isAddToHomeIntentSupported(Context context) {
    PackageManager pm = context.getPackageManager();
    Intent i = new Intent(INSTALL_SHORTCUT);
    List<ResolveInfo> receivers = pm.queryBroadcastReceivers(i, PackageManager.GET_INTENT_FILTERS);
    return !receivers.isEmpty();
}

From source file:Main.java

/**
 * Gets an entry of given list with given index, but safely.<br>
 * That means if the index is greater or lower than the allowed
 * boundaries this method will either use the first index or the last index.<br>
 *
 * @param eList      The element's list/*from w w w.  j a  v  a 2s  .co m*/
 * @param index      The index to list the entry from
 * @param defaultVal If the value would be null
 * @param <E>        The element's type
 * @return The element (or null if the list is empty)
 */
public static <E> E getEntrySafely(List<E> eList, int index, E defaultVal) {
    if (index < 0)
        index *= -1;

    if (eList.isEmpty())
        return defaultVal;
    if (index >= eList.size())
        index = eList.size() - 1;
    else if (index < 0)
        index = 0;

    if (index >= eList.size())
        return defaultVal;
    return eList.get(index);
}

From source file:com.ms.commons.test.datareader.impl.XmlReaderUtil.java

@SuppressWarnings("unchecked")
protected static MemoryRow readRow(Element rowE) {
    if (rowE == null)
        return null;
    List<Element> elements = rowE.elements("field");
    if (elements.isEmpty())
        return null;

    List<MemoryField> fieldList = new ArrayList<MemoryField>(elements.size());
    for (Element fieldE : elements) {
        fieldList.add(readField(fieldE));
    }/*  www  .ja  v a 2  s .co  m*/
    return new MemoryRow(fieldList);
}

From source file:Main.java

public static ActivityInfo getAppInfo(String appName, Context context) {
    try {/*from   w  w w.j  av a2 s .  c  o  m*/
        List<ResolveInfo> appList = getAllAppInfo(context);
        if (appList != null && !appList.isEmpty() && appName != null && !"".equals(appName)) {
            for (int i = 0; i < appList.size(); i++) {
                String appNameTemp = appList.get(i).loadLabel(context.getPackageManager()).toString();
                // String packageName =
                // appList.get(i).activityInfo.packageName;
                // String mainName = appList.get(i).activityInfo.name;
                // Log.i(TAG, "appName:" + appName + "\n" + "packageName:" +
                // packageName + "\n" + "mainName:" + mainName);
                if (appName.equals(appNameTemp)) {
                    return appList.get(i).activityInfo;
                }
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

From source file:Main.java

/**
 * whether application is in background/*from  w w w  . j  a v a2 s.  co m*/
 * <ul>
 * <li>need use permission android.permission.GET_TASKS in Manifest.xml</li>
 * </ul>
 * 
 * @param context
 * @return if application is in background return true, otherwise return
 *         false
 */
public static boolean isApplicationInBackground(Context context) {
    ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
    List<RunningTaskInfo> taskList = am.getRunningTasks(1);
    if (taskList != null && !taskList.isEmpty()) {
        ComponentName topActivity = taskList.get(0).topActivity;
        if (topActivity != null && !topActivity.getPackageName().equals(context.getPackageName())) {
            return true;
        }
    }
    return false;
}

From source file:Main.java

public static boolean isAppBackground(Context context) {
    ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
    @SuppressWarnings("deprecation")
    List<ActivityManager.RunningTaskInfo> tasks = am.getRunningTasks(1);
    if (!tasks.isEmpty()) {
        ComponentName topActivity = tasks.get(0).topActivity;
        if (!topActivity.getPackageName().equals(context.getPackageName())) {
            return true;
        }// ww  w.ja  v a2s  .c  om
    }
    return false;
}

From source file:com.zenoss.zenpacks.zenjmx.call.CallFactory.java

/**
 * Creates a JmxCall from a configuration read from the server
 * @param config the name-value parameters from the server
 * @throws ConfigurationException if the configuration provided does not
 *         contain sufficient information to create a call.
 */// w ww  .  j  av a  2s  .  c o  m
public static JmxCall createCall(ConfigAdapter config) throws ConfigurationException {

    _logger.debug("config: " + config);

    List<String> dataPoints = config.getDataPoints();
    if (dataPoints.isEmpty()) {
        _logger.warn("no data points defined");
        throw new ConfigurationException("Datasource " + config.getDatasourceId() + "No datapoints defined;"
                + " will not run collections");
    }

    // if the attributeName is blank the configuration represents an operation
    String attributeName = config.getAttributeName();
    JmxCall call = null;
    if (attributeName.trim().length() == 0) {
        _logger.debug("creating an operation call");
        call = OperationCall.fromValue(config);
    } else {
        _logger.debug("creating an attribute call");
        call = AttributeCall.fromValue(config);
    }
    return call;
}

From source file:io.github.seleniumquery.functions.jquery.manipulation.HtmlFunction.java

/**
 * Returns the HTML of the first element of the list.
 * @param elements The list of elements.
 * @return The HTML of the first element.
 *///  w w w  .j  ava2 s .c  o m
public static String html(List<WebElement> elements) {
    if (elements.isEmpty()) {
        return null;
    }
    return html(elements.get(0));
}

From source file:Main.java

public static Intent createTakePictureIntent(@NonNull Context context, @NonNull Uri outputFileUri) {
    List<Intent> cameraIntents = createTakePictureIntentList(context, outputFileUri);

    if (cameraIntents.isEmpty())
        return null;

    Intent chooserIntent = new Intent(cameraIntents.get(0));

    cameraIntents.remove(0);/*from   w ww. ja v  a 2  s. co m*/

    chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS,
            cameraIntents.toArray(new Parcelable[cameraIntents.size()]));

    return chooserIntent;
}

From source file:Main.java

/**
 * Randomize the specified list.//from ww w.j  av a2s  .  c o  m
 * @param list the list to randomize.
 * @param <E> the type of elements in the list.
 * @return a new list with all the elements of the input but in a random order.
 */
public static <E> List<E> randomize(List<E> list) {
    List<E> tmp = new ArrayList<>(list);
    List<E> result = new ArrayList<>(list.size());
    while (!tmp.isEmpty()) {
        int n = rand.nextInt(tmp.size());
        result.add(tmp.remove(n));
    }
    return result;
}