CustomMenu customMenu = new CustomMenu(this);

//设置中间布局
ImageView contentView = new ImageView(this);
contentView.setBackgroundResource(R.drawable.main_view);
customMenu.setContentView(contentView);

//设置左菜单
ImageView leftMenu = new ImageView(this);
leftMenu.setBackgroundResource(R.drawable.left_view);
customMenu.setLeftMenu(leftMenu);

//设置右菜单
ImageView rightMenu = new ImageView(this);
rightMenu.setBackgroundResource(R.drawable.left_view);
customMenu.setRightMenu(rightMenu);