1. 新建工程、引入cocoapod略过不提
2. 更改cocoapod类名
这是因为，引用framework的工程中，也有一个同样的文件，及文件里同样的类。
这个文件不能删除，但是可以重命名。
3. 修改framework 支持的ios系统版本
4. 修改为静态库
原因是，ios7只支持静态库。
修改为静态库后，像添加文件一样，直接添加进来就可以了。但会提示找不到一些系统库，自己添加就好了。
如果以后只需要支持ios8系统及更高版本，则选择为Dynamic Library 。并在使用时，添加到General ->Embedded Binaries下面。
5. 合并真机和模拟器库
新建 target: File->New->Target->Other->Aggregate。
添加脚本：
# Constants
SF_TARGET_NAME=${PROJECT_NAME}
#自定义的用来存放最后合并的framework
UNIVERSAL_OUTPUTFOLDER=${SRCROOT}/Products
#IPHONE_DEVICE_BUILD_DIR=${BUILD_DIR}/${CONFIGURATION}-iphoneos
WORKSPACE_NAME=${PROJECT_NAME}.xcworkspace
YO_SCHEME=${PROJECT_NAME}
#clean build是先清除原来的build
xcodebuild -workspace ${WORKSPACE_NAME} -scheme ${YO_SCHEME} -sdk iphonesimulator -configuration "${CONFIGURATION}" clean build
xcodebuild -workspace ${WORKSPACE_NAME} -scheme ${YO_SCHEME} -sdk iphoneos -configuration "${CONFIGURATION}" ARCHS='armv7 armv7s arm64' VALID_ARCHS='armv7 armv7s arm64' clean build
# build project
#xcodebuild -project "${PROJECT_FILE_PATH}" -target "${TARGET_NAME}" -configuration "${CONFIGURATION}" -sdk iphoneos BUILD_DIR="${BUILD_DIR}" OBJROOT="${OBJROOT}" BUILD_ROOT="${BUILD_ROOT}" CONFIGURATION_BUILD_DIR="${IPHONE_DEVICE_BUILD_DIR}/arm64" SYMROOT="${SYMROOT}" ARCHS='arm64' VALID_ARCHS='arm64' $ACTION
#xcodebuild -project "${PROJECT_FILE_PATH}" -target "${TARGET_NAME}" -configuration "${CONFIGURATION}" -sdk iphoneos BUILD_DIR="${BUILD_DIR}" OBJROOT="${OBJROOT}" BUILD_ROOT="${BUILD_ROOT}" CONFIGURATION_BUILD_DIR="${IPHONE_DEVICE_BUILD_DIR}/armv7" SYMROOT="${SYMROOT}" ARCHS='armv7 armv7s' VALID_ARCHS='armv7 armv7s' $ACTION
# Copy the framework structure to the universal folder (clean it first)
#因为framework的合并,lipo只是合并了最后的二进制可执行文件,所以其它的需要我们自己复制过来
#先移除原来的
rm -rf "${UNIVERSAL_OUTPUTFOLDER}"
mkdir -p "${UNIVERSAL_OUTPUTFOLDER}"
cp -R "${BUILD_DIR}/${CONFIGURATION}-iphonesimulator/${PROJECT_NAME}.framework" "${UNIVERSAL_OUTPUTFOLDER}/${PROJECT_NAME}.framework"
#合并模拟器和真机的架构
lipo -create "${BUILD_DIR}/${CONFIGURATION}-iphonesimulator/${PROJECT_NAME}.framework/${PROJECT_NAME}" "${BUILD_DIR}/${CONFIGURATION}-iphoneos/${PROJECT_NAME}.framework/${PROJECT_NAME}" -output "${UNIVERSAL_OUTPUTFOLDER}/${PROJECT_NAME}.framework/${PROJECT_NAME}"
open "${UNIVERSAL_OUTPUTFOLDER}"
编译project的脚本
# 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 -arch armv7 -arch armv7s -arch arm64 clean build
xcodebuild -configuration "Release" -target "${FMK_NAME}" -sdk iphonesimulator -arch x86_64 -arch i386 clean build # Cleaning the oldest.
if [ -d "${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 "${WRK_DIR}" open "${SRCROOT}/Products/"
6. 指定合并realese 版本
7. 生成
arm7: 在最老的支持iOS7的设备上使用
arm7s: 在iPhone5和5C上使用
arm64: 运行于iPhone5S的64位 ARM 处理器 上
i386: 32位模拟器上使用
x86_64: 64为模拟器上使用
检查生成的文件支持的框架：lipo -info
8. 参考
参考：http://www.cocoachina.com/ios/20150906/13323.html
下面的参考是加入cocoapod库: