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

public static String getLatestIosPlatformVersion() {
    List<String> platforms = listAvailableIosPlatformVersions();
    if (!platforms.isEmpty()) {
        return platforms.get(0);
    }//w w  w.  j a va2 s.  c om
    return "4.3";
}

From source file:Main.java

/**
 * Checks if the application is in the background (i.e behind another application's Activity).
 *
 * @param context {@link Context}/*w  w  w. j  a va 2s .  co  m*/
 * @return true if another application is above this one.
 */
public static boolean isApplicationBroughtToBackground(final Context context) {
    if (context.checkCallingOrSelfPermission(Manifest.permission.GET_TASKS) == PackageManager.PERMISSION_DENIED)
        return false;

    ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
    List<RunningTaskInfo> tasks = am.getRunningTasks(1);
    if (!tasks.isEmpty()) {
        ComponentName topActivity = tasks.get(0).topActivity;
        if (!topActivity.getPackageName().equals(context.getPackageName())
                && !topActivity.getPackageName().equals("com.google.android.voicesearch")) {
            return true;
        }
    }

    return false;
}

From source file:Main.java

public static boolean isApplicationToBackground(final Context context) {
    ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
    List<ActivityManager.RunningTaskInfo> tasks = am.getRunningTasks(1);
    if (!tasks.isEmpty()) {
        ComponentName topActivity = tasks.get(0).topActivity;
        if (!topActivity.getPackageName().equals(context.getPackageName())) {
            return true;
        }// w w w.ja v a  2s.c o m
    }
    return false;
}

From source file:Main.java

public static double getLonByLocation(Context context, String ciudad) {
    Geocoder geocoder = new Geocoder(context);
    try {//from  w  w  w .  j  a  va 2s  .co  m
        List<Address> result = geocoder.getFromLocationName(ciudad, 1);
        if (result != null && result.isEmpty() == false) {
            return result.get(0).getLongitude();
        }
    } catch (IOException e) {
        return 0D;
    }

    return 0D;
}

From source file:Main.java

public static AccessibilityNodeInfo findNodeInfosByText(AccessibilityNodeInfo nodeInfo, String text) {
    List<AccessibilityNodeInfo> list = nodeInfo.findAccessibilityNodeInfosByText(text);
    if (list == null || list.isEmpty()) {
        return null;
    }//from ww w.ja va 2s .  c  o m
    return list.get(0);
}

From source file:Main.java

/**
 * Returns the last element of the collection.
 * //from w w  w.  ja  v  a2  s .  c  o  m
 * @param <T>
 *            the element type
 * @param iterable
 *            the collection
 * @return the last element or null if the list is empty
 */
public static <T> T last(Iterable<T> iterable) {
    if (iterable instanceof Deque<?>)
        return ((Deque<T>) iterable).getLast();
    if (iterable instanceof List<?>) {
        List<T> list = (List<T>) iterable;
        return list.isEmpty() ? null : list.get(list.size() - 1);
    }
    Iterator<T> iterator = iterable.iterator();
    T last = null;
    while (iterator.hasNext())
        last = iterator.next();
    return last;
}

From source file:Main.java

public static AccessibilityNodeInfo findNodeInfoByText(AccessibilityNodeInfo nodeInfo, String text) {
    List<AccessibilityNodeInfo> list = nodeInfo.findAccessibilityNodeInfosByText(text);
    if (list == null || list.isEmpty()) {
        return null;
    }/*  w  ww .  ja v  a  2 s. c om*/

    return list.get(0);
}

From source file:Main.java

/**
 * Gets the next or same closest date from the specified days in
 * {@code daysOfWeek List} at specified {@code hour} and {@code min}.
 * // w  ww  . j  av  a  2 s.  com
 * @param daysOfWeek
 *          the days of week
 * @param hour
 *          the hour
 * @param min
 *          the min
 * @return the next or same date from the days of week at specified time
 * @throws IllegalArgumentException
 *           if the {@code daysOfWeek List} is empty.
 */
public static LocalDateTime getNextClosestDateTime(List<DayOfWeek> daysOfWeek, int hour, int min)
        throws IllegalArgumentException {
    if (daysOfWeek.isEmpty()) {
        throw new IllegalArgumentException("daysOfWeek should not be empty.");
    }

    final LocalDateTime dateNow = LocalDateTime.now();
    final LocalDateTime dateNowWithDifferentTime = dateNow.withHour(hour).withMinute(min).withSecond(0);

    // @formatter:off
    return daysOfWeek.stream().map(d -> dateNowWithDifferentTime.with(TemporalAdjusters.nextOrSame(d)))
            .filter(d -> d.isAfter(dateNow)).min(Comparator.naturalOrder())
            .orElse(dateNowWithDifferentTime.with(TemporalAdjusters.next(daysOfWeek.get(0))));
    // @formatter:on
}

From source file:fr.dutra.confluence2wordpress.util.CollectionUtils.java

/**
 * @param tagNames/*from  ww  w .  ja  va2 s .co  m*/
 * @param sep
 * @return
 */
public static String join(List<String> tagNames, String sep) {
    if (tagNames == null || tagNames.isEmpty()) {
        return null;
    }
    return Joiner.on(sep).join(tagNames);
}

From source file:Main.java

/**
 * @param list// w ww  .j a  va  2s. c  om
 * @param splitSize
 * @return splited collection
 */
public static <T> List<List<T>> split(List<T> list, int splitSize) {
    if (list == null || list.isEmpty() || splitSize <= 0) {
        return Collections.emptyList();
    }

    List<List<T>> result = new ArrayList<List<T>>();
    if (list.size() > splitSize) {
        int fromIndex = 0;
        while (true) {
            int toIndex = fromIndex + splitSize;
            if (toIndex > list.size()) {
                toIndex = list.size();
            }
            result.add(list.subList(fromIndex, toIndex));
            fromIndex += splitSize;
            if (fromIndex >= list.size()) {
                break;
            }
        }
    } else {
        result.add(list);
    }

    return result;
}