一、创建一个workspace
Xcode->File->New->Workspace
二、创建SDK
打开.xcworkspace文件，创建project，选择Cocoa Touch Framework，添加到workspace
三、创建Demo
打开.xcworkspace文件，创建project，选择Single View Application，添加到workspace
四、Demo的关联以及SDK的开发调试
1、设置Build Setting参数，将Build Active Architecture only设置为NO，将Mach-O Type设置为静态库
2、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
3、创建一个Aggregare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 Phases
4、把下面这段脚本复制进去（格式不要错，格式错编译不通过）
# 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 clean build
xcodebuild -configuration "Release" -target "${FMK_NAME}" -sdk iphonesimulator clean build
# Cleaning the oldest.
if [ -d "${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 "${WRK_DIR}"
open "${INSTALL_DIR}"
5、最后编译command + B，编译通过在finder中找到framework，拷贝出来
6、把打包好的framework拖到demo里面