/**
* Initializes an {@link RecentFolderObserver} object that receives a call to {@link #onChanged()}
* when the controller changes the recent folder.
*
* @param controller
*/
public RecentFolderList initialize(RecentFolderController controller) {
if (controller == null) {
LogUtils.wtf(LOG_TAG, "RecentFolderObserver initialized with null controller!");
}
mController = controller;
mController.registerRecentFolderObserver(this);
return mController.getRecentFolders();
}
/** Unregisters for recent folder changes and makes the object unusable. */
public void unregisterAndDestroy() {
if (mController == null) {
return;
}
mController.unregisterRecentFolderObserver(this);
}
/**
* Return the most current recent folder.
*
* @return
*/
public final RecentFolderList getRecentFolders() {
if (mController == null) {
return null;
}
return mController.getRecentFolders();
}