@SuppressWarnings("unused")
    public void addMentionWatcher(@NonNull MentionWatcher watcher) {
        if (!mMentionWatchers.contains(watcher)) {
            mMentionWatchers.add(watcher);
        }
    }
@SuppressWarnings("unused")
    public void addMentionWatcher(@NonNull MentionWatcher watcher) {
        if (!mMentionWatchers.contains(watcher)) {
            mMentionWatchers.add(watcher);
        }
    }
@ SuppressWarnings ( "unused" ) public void addMentionWatcher ( @ NonNull MentionWatcher watcher ) { if ( ! mMentionWatchers . contains ( watcher ) ) { mMentionWatchers . add ( watcher ) ; } }
Register a {@link com.linkedin.android.spyglass.ui.MentionsEditText.MentionWatcher} in order to receive callbacks
when mentions are changed.

@param watcher the {@link com.linkedin.android.spyglass.ui.MentionsEditText.MentionWatcher} to add
Register a { @link com . linkedin . android . spyglass . ui . MentionsEditText . MentionWatcher } in order to receive callbacks when mentions are changed .