[android] How to import set of icons into Android Studio project

I downloaded collection of icons from Android Developers center Each icon in this collection is ordered in forlders according to its resolution: drawable-hdpi, drawable-mdpi, drawable-xhdpi, drawable-xxhdpi.

Is there a way to import all the 4 icon's files in one action to Android Studio or I need to copy it one by one? (when I used new->Image Asset , I had to fill a file path, I couldn't fill it with folder path)

Update 25/2/15:
According to this SO question, seems like there is a way to generate the 4 size of icons by Android Asset Studio, and then import the zip file directly to your Android Studio project res folder - has anyone used it?

If for some reason you don't want to use the plugin, then here's the script you can use to copy the resources to your android studio project:

echo "..:: Copying resources ::.."
echo "Enter folder:"
read srcFolder
echo "Enter filename with extension:"
read srcFile
cp /Users/YOUR_USER/Downloads/material-design-icons-master/"$srcFolder"/drawable-xxxhdpi/"$srcFile" /Users/YOUR_USER/AndroidStudioProjects/YOUR_PROJECT/app/src/main/res/drawable-xxxhdpi/"$srcFile"/
echo "xxxhdpi copied"
cp /Users/YOUR_USER/Downloads/material-design-icons-master/"$srcFolder"/drawable-xxhdpi/"$srcFile" /Users/YOUR_USER/AndroidStudioProjects/YOUR_PROJECT/app/src/main/res/drawable-xxhdpi/"$srcFile"/
echo "xxhdpi copied"
cp /Users/YOUR_USER/Downloads/material-design-icons-master/"$srcFolder"/drawable-xhdpi/"$srcFile" /Users/YOUR_USER/AndroidStudioProjects/YOUR_PROJECT/app/src/main/res/drawable-xhdpi/"$srcFile"/
echo "xhdpi copied"
cp /Users/YOUR_USER/Downloads/material-design-icons-master/"$srcFolder"/drawable-hdpi/"$srcFile" /Users/YOUR_USER/AndroidStudioProjects/YOUR_PROJECT/app/src/main/res/drawable-hdpi/"$srcFile"/
echo "hdpi copied"
cp /Users/YOUR_USER/Downloads/material-design-icons-master/"$srcFolder"/drawable-mdpi/"$srcFile" /Users/YOUR_USER/AndroidStudioProjects/YOUR_PROJECT/app/src/main/res/drawable-mdpi/"$srcFile"/
echo "mdpi copied"

Since Android Studio 3.4, there is a new tool called Resource manager. It supports importing many drawables at once (vectors, pngs, ...) . Follow the official documentation.

what u need to do is icons downloaded from material design, open that folder there are lots of icons categories specified, open any of it choose any icon and go to this folder -> drawable-anydpi-v21. this folder contains xml files copy any xml file and paste it to this location -> C:\Users\Username\AndroidStudioProjects\ur project name\app\src\main\res\drawable. That's it !! now you can use the icon in ur project.

just like Gregory Seront said here:

Actually if you downloaded the icons pack from the android web site, you will see that you have one folder per resolution named drawable-mdpi etc. Copy all folders into the res (not the drawable) folder in Android Studio. This will automatically make all the different resolution of the icon available.

but if your not getting the images from a generator site (maybe your UX team provides them), just make sure your folders are named drawable-hdpi, drawable-mdpi, etc. then in mac select all folders by holding shift and then copy them (DO NOT DRAG). Paste the folders into the res folder. android will take care of the rest and copy all drawables into the correct folder.

Actually if you downloaded the icons pack from the android web site, you will see that you have one folder per resolution named drawable-mdpi etc. Copy all folders into the res (not the drawable) folder in Android Studio. This will automatically make all the different resolution of the icon available.

For custom images you created yourself, you can do without the plugin:

Right click on res folder, selecting New > Image Asset. browse image file. Select the largest image you have.

It will create all densities for you. Make sure you select an original image, not an asset studio image with an alpha, or you will semi-transpartent it twice.

Newer versions of Android support vector graphics, which is preferred over PNG icons. Android Studio 2.1.2 (and probably earlier versions) comes with Vector Asset Studio, which will automatically create PNG files for vector graphics that you add.

The Vector Asset Studio supports importing vector icons from the SDK, as well as your own SVG files.

This article describes Vector Asset Studio: https://developer.android.com/studio/write/vector-asset-studio.html

Summary for how to add a vector graphic with PNG files (partially copied from that URL):

1. In the Project window, select the Android view.
2. Right-click the res folder and select New > Vector Asset.
3. The Material Icon radio button should be selected; then click Choose
4. Select your icon, tweak any settings you need to tweak, and Finish.
5. Depending on your settings (see article), PNGs are generated during build at the app/build/generated/res/pngs/debug/ folder.