Move images into Android drawable directories

images2drawables.sh

#!/bin/bash

# Moves assets into android drawable folders and normalise file names.
# file@mdpi.png     -> drawable-mdpi
# file@hdpi.png     -> drawable-hdpi
# file@xhdpi.png    -> drawable-xhdpi
# file@xxhdpi.png   -> drawable-xxhdpi
# file@xxxhdpi.png  -> drawable-xxxhdpi
# file.svg          -> drawable-anydpi-v21 (svgs need converted to vector drawables using android studio vector asset import tool)
# Based on https://github.com/Ninjanetic/ios2android MIT License (MIT)

rm -rf drawable-anydpi-v21
rm -rf drawable-mdpi
rm -rf drawable-hdpi
rm -rf drawable-xhdpi
rm -rf drawable-xxhdpi
rm -rf drawable-xxxhdpi
mkdir drawable-anydpi-v21
mkdir drawable-mdpi
mkdir drawable-hdpi
mkdir drawable-xhdpi
mkdir drawable-xxhdpi
mkdir drawable-xxxhdpi

function image2drawable {
    x=${1/$2./.}
    x=${x//-/_}
    x=${x//+/_}
    x=`echo $x | tr "[:upper:]" "[:lower:]"`
    echo $1
    cp $1 $3/$x
}

for ii in *.jpg *.png *.svg; do 
    if [ -f $ii ];
    then
        if [[ ${ii} =~ @xxxhdpi ]]; then
            image2drawable ${ii} @xxxhdpi drawable-xxxhdpi
        elif [[ ${ii} =~ @xxhdpi ]]; then
            image2drawable ${ii} @xxhdpi drawable-xxhdpi
        elif [[ ${ii} =~ @xhdpi ]]; then
            image2drawable ${ii} @xhdpi drawable-xhdpi
        elif [[ ${ii} =~ @hdpi ]]; then
            image2drawable ${ii} @hdpi drawable-hdpi
        elif [[ ${ii} =~ @mdpi ]]; then
            image2drawable ${ii} @mdpi drawable-mdpi
        else
            image2drawable ${ii} "" drawable-anydpi-v21
        fi
    fi
done

echo ''
echo 'svg files in drawable-anydpi-v21 should be converted to vector drawables using android studio vector asset import tool'
echo ''