/*
 * Modern UI.
 * Copyright (C) 2019-2021 BloCamLimb. All rights reserved.
 *
 * Modern UI is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * Modern UI is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with Modern UI. If not, see <https://www.gnu.org/licenses/>.
 */

package icyllis.modernui.lifecycle;

/**
 * A simple callback that can receive from {@link LiveData}.
 *
 * @param <T> The type of the parameter
 * @see LiveData LiveData - for a usage description.
 */
@FunctionalInterface
public interface Observer<T> {

    /**
     * Called when the data is changed.
     *
     * @param t The new data
     */
    void onChanged(T t);
}
