<com.chimngu.drag.ui.widget.drag.DragFrame
        android:id="@+id/drag_frame"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>
        

dragFrame.setTopFragment(getSupportFragmentManager(), PlayFragment.newInstance());

dragFrame.setBottomFragment(getSupportFragmentManager(), DetailFragment.newInstance());

dragFrame.setOnDragListener(this);

dragFrame.maximize();

dragFrame.minimize();

dragFrame.close();

dragFrame.setHeightWaiting(int heightWaiting);

dragFrame.setHeight(int height);

dragFrame.isMaximized();

dragFrame.isMinimized();

dragFrame.isClosed();