MAC: /Applications/Adobe Photoshop CS5/Presets/Scripts
PC: c:\program files\Adobe Photoshop CS5\Presets\Scripts
With Photoshop open, select File > Scripts > Create Icons
Adobe Photoshop JavaScript Reference http://www.adobe.com/devnet/photoshop/scripting.html
try {
// Prompt user to select iTunesArtwork file. Clicking "Cancel" returns null.
var iTunesArtwork = File.openDialog("Select a sqaure PNG file that is at least 1024x1024.", "*.png", false);
if (iTunesArtwork !== null) {
var doc = open(iTunesArtwork, OpenDocumentType.PNG);
if (doc == null) {
throw "Something is wrong with the file. Make sure it's a valid PNG file.";
}
var startState = doc.activeHistoryState; // save for undo
var initialPrefs = app.preferences.rulerUnits; // will restore at end
app.preferences.rulerUnits = Units.PIXELS; // use pixels
if (doc.width != doc.height) {
throw "Image is not square";
}
else if ((doc.width < 1024) && (doc.height < 1024)) {
throw "Image is too small! Image must be at least 1024x1024 pixels.";
}
else if (doc.width < 1024) {
throw "Image width is too small! Image width must be at least 1024 pixels.";
}
else if (doc.height < 1024) {
throw "Image height is too small! Image height must be at least 1024 pixels.";
}
// Folder selection dialog
var destFolder = Folder.selectDialog("Choose an output folder");
if (destFolder == null) {
// User canceled, just exit
throw "";
}
// Save icons in PNG using Save for Web.
var sfw = new ExportOptionsSaveForWeb();
sfw.format = SaveDocumentType.PNG;
sfw.PNG8 = false; // use PNG-24
sfw.transparency = true;
doc.info = null; // delete metadata
var icons = [
{ "name": "ic_launcher-web", "size": 512 },
{ "name": "ic_launcher-xxxhdpi", "size": 192 },
{ "name": "ic_launcher-xxhdpi", "size": 144 },
{ "name": "ic_launcher-xhdpi", "size": 96 },
{ "name": "ic_launcher-hdpi", "size": 72 },
{ "name": "ic_launcher-mdpi", "size": 48 },
{ "name": "ic_launcher-ldpi", "size": 36 }
];
var icon;
for (i = 0; i < icons.length; i++) {
icon = icons[i];
doc.resizeImage(icon.size, icon.size, // width, height
null, ResampleMethod.BICUBICSHARPER);
var destFileName = icon.name + ".png";
doc.exportDocument(new File(destFolder + "/" + destFileName), ExportType.SAVEFORWEB, sfw);
doc.activeHistoryState = startState; // undo resize
}
alert("Android Icons created!");
}
}
catch (exception) {
// Show degbug message and then quit
if ((exception != null) && (exception != ""))
alert(exception);
}
finally {
if (doc != null)
doc.close(SaveOptions.DONOTSAVECHANGES);
app.preferences.rulerUnits = initialPrefs; // restore prefs
}