Adding a method checking whether Overview has tasks

     */

    @NonNull

    public OverviewTask getCurrentTask() {

        try (LauncherInstrumentation.Closable c = mLauncher.addContextLayer(

                "want to get current task")) {

            verifyActiveContainer();

            final List<UiObject2> taskViews = mLauncher.getDevice().findObjects(

                    mLauncher.getOverviewObjectSelector("snapshot"));

        final List<UiObject2> taskViews = getTasks();

        mLauncher.assertNotEquals("Unable to find a task", 0, taskViews.size());

            // taskViews contains up to 3 task views: the 'main' (having the widest visible

            // part) one in the center, and parts of its right and left siblings. Find the

            // main task view by its width.

        // taskViews contains up to 3 task views: the 'main' (having the widest visible part) one

        // in the center, and parts of its right and left siblings. Find the main task view by

        // its width.

        final UiObject2 widestTask = Collections.max(taskViews,

                (t1, t2) -> Integer.compare(mLauncher.getVisibleBounds(t1).width(),

                        mLauncher.getVisibleBounds(t2).width()));

        return new OverviewTask(mLauncher, widestTask, this);

    }

    @NonNull

    private List<UiObject2> getTasks() {

        try (LauncherInstrumentation.Closable c = mLauncher.addContextLayer(

                "want to get overview tasks")) {

            verifyActiveContainer();

            return mLauncher.getDevice().findObjects(

                    mLauncher.getOverviewObjectSelector("snapshot"));

        }

    }

    /**

     * Returns whether Overview has tasks.

     */

    public boolean hasTasks() {

        return getTasks().size() > 0;

    }

}

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