感谢以上所有的答案。下面是一个在swift 4.2和5中工作的脚本。将Your_Framework_Name字符串替换为框架的原始名称。

APP_PATH="${TARGET_BUILD_DIR}/${WRAPPER_NAME}"
FRAMEWORK_NAME="Your_Framework_Name.framework"
# Check if Framework is present.
FRAMEWORK_LOCATION=$(find "$APP_PATH" -name "$FRAMEWORK_NAME" -type d)
if [ -z $FRAMEWORK_LOCATION ]; then
echo "Couldn't find Your_Framework_Name.framework in $APP_PATH. Make sure 'Embed Frameworks' build phase is listed before the 'Strip Unused Architectures' build phase."
exit 1
fi
# This script strips unused architectures
find "$APP_PATH" -name "$FRAMEWORK_NAME" -type d | while read -r FRAMEWORK
do
FRAMEWORK_EXECUTABLE_NAME=$(defaults read "$FRAMEWORK/Info.plist" CFBundleExecutable)
FRAMEWORK_EXECUTABLE_PATH="$FRAMEWORK/$FRAMEWORK_EXECUTABLE_NAME"
echo "Executable is $FRAMEWORK_EXECUTABLE_PATH"
EXTRACTED_ARCHS=()
for ARCH in $ARCHS
do
echo "Extracting $ARCH from $FRAMEWORK_EXECUTABLE_NAME"
lipo -extract "$ARCH" "$FRAMEWORK_EXECUTABLE_PATH" -o "$FRAMEWORK_EXECUTABLE_PATH-$ARCH"
EXTRACTED_ARCHS+=("$FRAMEWORK_EXECUTABLE_PATH-$ARCH")
done
echo "Merging extracted architectures: ${ARCHS}"
lipo -o "$FRAMEWORK_EXECUTABLE_PATH-merged" -create "${EXTRACTED_ARCHS[@]}"
rm "${EXTRACTED_ARCHS[@]}"
echo "Replacing original executable with thinned version"
rm "$FRAMEWORK_EXECUTABLE_PATH"
mv "$FRAMEWORK_EXECUTABLE_PATH-merged" "$FRAMEWORK_EXECUTABLE_PATH"
done

我从构建设置-有效架构-发布中删除了i386和x64_86架构，一切都工作得很好。

现在唯一的问题是您不能为了测试目的在模拟器上运行RELEASE版本。但是，如果你想的话，你可以很容易地把它们加回来。

pAkY88给出的答案是有效的，但我在https://stackoverflow.com/a/35240555/5272316:中遇到了马里奥·古兹曼(Mario A Guzman)一样的问题，一旦我们切断了未使用的架构，我们就不能再运行脚本了，因为它试图删除不存在的切片，因为xcode不会每次都重新嵌入二进制。 想法是-只是删除i386和x86_64切片时构建存档，所以我修改了脚本:

echo "Target architectures: $ARCHS"

APP_PATH="${TARGET_BUILD_DIR}/${WRAPPER_NAME}"

find "$APP_PATH" -name '*.framework' -type d | while read -r FRAMEWORK
do
FRAMEWORK_EXECUTABLE_NAME=$(defaults read "$FRAMEWORK/Info.plist" CFBundleExecutable)
FRAMEWORK_EXECUTABLE_PATH="$FRAMEWORK/$FRAMEWORK_EXECUTABLE_NAME"
echo "Executable is $FRAMEWORK_EXECUTABLE_PATH"
echo $(lipo -info "$FRAMEWORK_EXECUTABLE_PATH")

FRAMEWORK_TMP_PATH="$FRAMEWORK_EXECUTABLE_PATH-tmp"

# remove simulator's archs if location is not simulator's directory
case "${TARGET_BUILD_DIR}" in
*"iphonesimulator")
    echo "No need to remove archs"
    ;;
*)
    if $(lipo "$FRAMEWORK_EXECUTABLE_PATH" -verify_arch "i386") ; then
    lipo -output "$FRAMEWORK_TMP_PATH" -remove "i386" "$FRAMEWORK_EXECUTABLE_PATH"
    echo "i386 architecture removed"
    rm "$FRAMEWORK_EXECUTABLE_PATH"
    mv "$FRAMEWORK_TMP_PATH" "$FRAMEWORK_EXECUTABLE_PATH"
    fi
    if $(lipo "$FRAMEWORK_EXECUTABLE_PATH" -verify_arch "x86_64") ; then
    lipo -output "$FRAMEWORK_TMP_PATH" -remove "x86_64" "$FRAMEWORK_EXECUTABLE_PATH"
    echo "x86_64 architecture removed"
    rm "$FRAMEWORK_EXECUTABLE_PATH"
    mv "$FRAMEWORK_TMP_PATH" "$FRAMEWORK_EXECUTABLE_PATH"
    fi
    ;;
esac

echo "Completed for executable $FRAMEWORK_EXECUTABLE_PATH"
echo $(lipo -info "$FRAMEWORK_EXECUTABLE_PATH")

done

如果不是为模拟器(这意味着目标文件夹不像“debug - iphonessimulator”)运行，这个脚本只是从胖二进制文件(如果它们存在的话)中删除i386和x86_64切片。

对不起，我不熟悉shell脚本，所以可能有人可以用更优雅的方式编写它。但它确实有效)

下面是我专门用来从可执行文件中删除一个框架架构的脚本。

# Remove unused Framework architecture from "YourApp" framework.

FRAMEWORK_EXECUTABLE_PATH="${TARGET_BUILD_DIR}/${WRAPPER_NAME}/Frameworks/YourApp.framework/YourApp"

echo "$FRAMEWORK_EXECUTABLE_PATH"

cp "$FRAMEWORK_EXECUTABLE_PATH" "${FRAMEWORK_EXECUTABLE_PATH}_X86_64"

echo "Executing following command to remove x86_64 arch from YourApp framework executable"
echo "lipo -remove x86_64 \"$FRAMEWORK_EXECUTABLE_PATH\" -o \"${FRAMEWORK_EXECUTABLE_PATH}_X86_64\""

lipo -remove x86_64 "${FRAMEWORK_EXECUTABLE_PATH}_X86_64" -o "$FRAMEWORK_EXECUTABLE_PATH"

rm "${FRAMEWORK_EXECUTABLE_PATH}_X86_64"

将此脚本添加到项目目标的“构建阶段”中。请务必选中复选框:“仅在安装时运行脚本”

即使在添加脚本和更新框架几次之后，我也遇到了同样的问题。

确保在xCode中脚本被添加在嵌入之后的末尾。我想我不小心在嵌入框架之前移动了脚本。

注意:我有xCode 9.1

问题是Buy框架包含模拟器(x86_64)和实际设备(ARM)的构建。

当然，你不允许向App Store提交不受支持的架构的二进制文件，所以解决方案是在提交之前“手动”从最终二进制文件中删除不需要的架构。

Daniel Kennett提出了一个很好的解决方案，并提供了这个脚本添加到构建阶段:

APP_PATH="${TARGET_BUILD_DIR}/${WRAPPER_NAME}"

# This script loops through the frameworks embedded in the application and
# removes unused architectures.
find "$APP_PATH" -name '*.framework' -type d | while read -r FRAMEWORK
do
    FRAMEWORK_EXECUTABLE_NAME=$(defaults read "$FRAMEWORK/Info.plist" CFBundleExecutable)
    FRAMEWORK_EXECUTABLE_PATH="$FRAMEWORK/$FRAMEWORK_EXECUTABLE_NAME"
    echo "Executable is $FRAMEWORK_EXECUTABLE_PATH"

    EXTRACTED_ARCHS=()

    for ARCH in $ARCHS
    do
        echo "Extracting $ARCH from $FRAMEWORK_EXECUTABLE_NAME"
        lipo -extract "$ARCH" "$FRAMEWORK_EXECUTABLE_PATH" -o "$FRAMEWORK_EXECUTABLE_PATH-$ARCH"
        EXTRACTED_ARCHS+=("$FRAMEWORK_EXECUTABLE_PATH-$ARCH")
    done

    echo "Merging extracted architectures: ${ARCHS}"
    lipo -o "$FRAMEWORK_EXECUTABLE_PATH-merged" -create "${EXTRACTED_ARCHS[@]}"
    rm "${EXTRACTED_ARCHS[@]}"

    echo "Replacing original executable with thinned version"
    rm "$FRAMEWORK_EXECUTABLE_PATH"
    mv "$FRAMEWORK_EXECUTABLE_PATH-merged" "$FRAMEWORK_EXECUTABLE_PATH"

done

我用过，效果很好。

编辑:请务必查看Varrry发布的修改后的脚本，因为这个脚本有一些小问题。