/**
 * Called when the focused building info is clicked.
 */
public void onFocusedBuildingInfo(View view) {
    IndoorBuilding building = map.getFocusedBuilding();
    if (building != null) {
        StringBuilder s = new StringBuilder();
        for (IndoorLevel level : building.getLevels()) {
            s.append(level.getName()).append(" ");
        }
        if (building.isUnderground()) {
            s.append("is underground");
        }
        setText(s.toString());
    } else {
        setText("No visible building");
    }
}
 

/**
 * Called when the activate higher level is clicked.
 */
public void onHigherLevel(View view) {
    IndoorBuilding building = map.getFocusedBuilding();
    if (building != null) {
        List<IndoorLevel> levels = building.getLevels();
        if (!levels.isEmpty()) {
            int currentLevel = building.getActiveLevelIndex();
            // The levels are in 'display order' from top to bottom,
            // i.e. higher levels in the building are lower numbered in the array.
            int newLevel = currentLevel - 1;
            if (newLevel == -1) {
                newLevel = levels.size() - 1;
            }
            IndoorLevel level = levels.get(newLevel);
            setText("Activating level " + level.getName());
            level.activate();
        } else {
            setText("No levels in building");
        }
    } else {
        setText("No visible building");
    }
}
 

/**
 * Called when the focused level info is clicked.
 */
public void onVisibleLevelInfo(View view) {
    IndoorBuilding building = map.getFocusedBuilding();
    if (building != null) {
        IndoorLevel level =
                building.getLevels().get(building.getActiveLevelIndex());
        if (level != null) {
            setText(level.getName());
        } else {
            setText("No visible level");
        }
    } else {
        setText("No visible building");
    }
}
 

@Override
public void onIndoorLevelActivated(IndoorBuilding indoorBuilding) {
    if( indoorBuilding == null )
        return;


}