Layout* root = static_cast<Layout*>(_uiLayer->getChildByTag(81)) ; //找到根布局 81
Layout* background = static_cast<Layout*>(root->getChildByName("background_Panel")); //其他的组件都可以在这个布局里找，注意看是root->getChildByName
Layout* layout = Layout::create(); //创建新布局
layout->setContentSize(Size(280,150)); //设置大小
layout->setPosition(Vec2（）） //设置位置
{
layout->setBackGroundColorType(Layout::BackGroundColorType::SOLID); //设置背景颜色类型（固体）
layout->setBackGroundColor(Color3B(128,128,128)); //设置背景颜色
}
{
layout->setBackGroundColorType(Layout::BackGroundColorType::GRADIENT); //设置背景颜色类型（渐变）
layout->setBackGroundColor(Color3B(64,64,64),Color3B(192,192,192));
}
layout->setClippingEnabled(true); //允许剪裁
layout->setBackGroundImage("cocosui/Hello.png"); //设置背景图片
layout->setBackGroundImageScale9Enabled(true); //设置背景图片九宫格可用
layout->setLayoutType(LayoutType::VERTICAL); //设置布局为垂直布局
layout->setLayoutType(LayoutType::HORIZONTAL); //设置布局为水平布局
{ //布局为整齐的行列布局
layout->setLayoutType(LayoutType::RELATIVE);
Button * button_TopLeft = Button::create("cocosui/animationbuttonnormal.png","cocosui/animationbuttonpressed.png");
layout->addChild(button_TopLeft);
RelativeLayoutParameter * rp_TopLeft = RelativeLayoutParameter::RelativeAlign::PARENT_TOP_LEFT);
button_TopLeft->setLayoutParameter(rp_TopLeft);
//依次类推
RelativeLayoutParameter * rp_TopCenter = RelativeLayoutParameter::create();
rp_TopCenter->setAlign(RelativeLayoutParameter::RelativeAlign::PARENT_TOP_CENTER_HORIZONTAL);
button_TopCenter->setLayoutParameter(rp_TopCenter);
【
PARENT_TOP_RIGHT
PARENT_LEFT_CENTER_VERTICAL
CENTER_IN_PARENT
PARENT_RIGHT_CENTER_VERTICAL
PARENT_LEFT_BottOM
PARENT_BottOM_CENTER_HORIZONTAL
PARENT_RIGHT_BottOM
】
}
{ //一种相对布局
layout->setLayoutType(LayoutType::RELATIVE);
RelativeLayoutParameter * rp_Center = RelativeLayoutParamter::create();
rp_Center->setRelativeName("rp_Center");
rp_Center->setAlign(RelativeLayoutParameter::RelativeAlign::CENTER_IN_PARENT);
imageView_Center->setLayoutParameter(rp_Center);
//依次类推，但是注意rp_AboveCenter->setRelativetoWidgetName("rp_Center")；//依然是rp_Center
参数依次是 LOCATION_ABOVE_CENTER
LOCATION_BELOW_CENTER
LOCATION_LEFT_OF_CENTER
LOCATION_RIGHT_OF_CENTER
}
