1. 创建workspace
2. 创建framework工程
3. 创建Demo工程
4. 创建成功
5. 设置SDK工程配置
6. 设置Headers，将要公开的头文件拖到Public下，要隐藏的放到Private或Project下，隐藏的头文件不能被引用,效果图:
7. 创建一个Aggregare
选中SDK工程->Editor->Add Target
8. 嵌入脚本，选中刚刚创建的Aggregare,然后选中右侧的Build Phases,点击左边的+号，选择New Run Script Phases
9. 下面把这段脚本复制进去（格式不要错，格式错编译不通过）
# Type a script or drag a script file from your workspace to insert its path.
# Sets the target folders and the final framework product.
# 如果工程名称和Framework的Target名称不一样的话，要自定义FMKNAME
# 例如: FMK_NAME ="MyFramework"
FMK_NAME=${PROJECT_NAME}
# Install dir will be the final output to the framework.
# The following line create it in the root
folder of the current project.
INSTALL_DIR=${SRCROOT}/Products/${FMK_NAME}.framework
# Working dir will be deleted after the framework creation.
WRK_DIR=build
DEVICE_DIR=${WRK_DIR}/Release-iphoneos/${FMK_NAME}.framework
SIMULATOR_DIR=${WRK_DIR}/Release-iphonesimulator/${FMK_NAME}.framework
# -configuration ${CONFIGURATION}
# Clean and Building both architectures.
xcodebuild -configuration "Release" -target "${FMK_NAME}" -sdk iphoneos build
xcodebuild -configuration "Debug" -target "${FMK_NAME}" -sdk iphonesimulator build
# Cleaning the oldest.
if [ -d "${INSTALL_DIR}" ]
then
rm -rf "${INSTALL_DIR}"
fi
mkdir -p "${INSTALL_DIR}"
cp -R "${DEVICE_DIR}/" "${INSTALL_DIR}/"
# Uses the Lipo Tool to merge both binary files (i386 + armv6/armv7) into one Universal final product.
lipo -create "${DEVICE_DIR}/${FMK_NAME}" "${SIMULATOR_DIR}/${FMK_NAME}" -output "${INSTALL_DIR}/${FMK_NAME}"
rm -r "${WRK_DIR}"
open "${INSTALL_DIR}"
原文：https://www.cnblogs.com/coolcold/p/11243355.html