leanback/src/main/java/androidx/leanback/media/PlaybackBaseControlGlue.java
@CallSuper
    protected void onPreparedStateChanged() {
        onUpdateDuration();
        List<PlayerCallback> callbacks = getPlayerCallbacks();
        if (callbacks != null) {
            for (int i = 0, size = callbacks.size(); i < size; i++) {
                callbacks.get(i).onPreparedStateChanged(this);
            }
        }
    }
/**
     * Event when ready state for play changes.
     */
Event when ready state for play changes.
Event when ready state for play changes .
@CallSuper
    protected void onPreparedStateChanged() {
        onUpdateDuration();
        List<PlayerCallback> callbacks = getPlayerCallbacks();
        if (callbacks != null) {
            for (int i = 0, size = callbacks.size(); i < size; i++) {
                callbacks.get(i).onPreparedStateChanged(this);
            }
        }
    }
@ CallSuper protected void onPreparedStateChanged ( ) { onUpdateDuration ( ) ; List < PlayerCallback > callbacks = getPlayerCallbacks ( ) ; if ( callbacks != null ) { for ( int i = 0 , size = callbacks . size ( ) ; i < size ; i ++ ) { callbacks . get ( i ) . onPreparedStateChanged ( this ) ; } } }
Event when ready state for play changes.
Event when ready state for play changes .