NewPipe/app/src/main/java/org/schabi/newpipe/fragments/BackPressable.java

package org.schabi.newpipe.fragments;

/**
 * Indicates that the current fragment can handle back presses
 */
public interface BackPressable {
    /**
     * A back press was delegated to this fragment
     *
     * @return if the back press was handled
     */
    boolean onBackPressed();
}