How to reduce the size of my iPhone application?

Question

Alternative Titles (to aid searches)

Compressing PNGs

Reduce the size of an iPhone Archive (.ipa)

Adding a build rule to compress images i

Answer 1

@rjstelling has a really nice answer, and I couldn't begin to say it better, but there is one small problem with it. It won't work with localized images. This is only a problem if you embed text in images, which is something I highly recommend never doing if you can avoid it. However, if you have to use localized images, follow all of rjstelling 's steps except instead of using:

if [ "${BUILD}" == "DISTRIBUTION_BUILD" ]; then
echo "COMPRESS" >> "${DERIVED_FILES_DIR}/pngout-log.txt"
"${PROJECT_DIR}/build-process/pngout" -y -q -force "${INPUT_FILE_PATH}" "${DERIVED_FILES_DIR}/${INPUT_FILE_NAME}"
else
echo "COPY" >> "${DERIVED_FILES_DIR}/pngout-log.txt"
cp -f "${INPUT_FILE_PATH}" "${DERIVED_FILES_DIR}/${INPUT_FILE_NAME}"
fi

use the code below:

if [ "${BUILD}" == "DISTRIBUTION_BUILD" ]; then
echo "COMPRESS" >> "${DERIVED_FILES_DIR}/pngout-log.txt"
"${PROJECT_DIR}/build-process/pngout" -y -q -force "${INPUT_FILE_PATH}" "${DERIVED_FILES_DIR}/${INPUT_FILE_REGION_PATH_COMPONENT}${INPUT_FILE_NAME}"
else
echo "COPY" >> "${DERIVED_FILES_DIR}/pngout-log.txt"
cp -f "${INPUT_FILE_PATH}" "${DERIVED_FILES_DIR}/${INPUT_FILE_REGION_PATH_COMPONENT}${INPUT_FILE_NAME}"
fi

Note the only change is to the export file path. You have to prepend INPUT_FILE_REGION_PATH_COMPONENT to the export path to get localization of image to work properly. INPUT_FILE_REGION_PATH_COMPONENT is empty normally unless there is localized folder for the specific file. That being the case, it provides the folder name and a trailing slash, so you don't have to.

You must also change your Output Files setting to ${DERIVED_FILES_DIR}/${INPUT_FILE_REGION_PATH_COMPONENT}${INPUT_FILE_NAME} in order for this to work.

Not sure if I'm the only one who's ever had that problem, but hopefully it helps someone.