Photoshop脚本代码一键生成所有android图标

Copy to path:
	MAC: /Applications/Adobe Photoshop CS5/Presets/Scripts
	PC: c:\program files\Adobe Photoshop CS5\Presets\Scripts

	//
	// WARNING!!! In the rare case that there are name collisions, this script will
	// overwrite (delete perminently) files in the same folder in which the selected
	// iTunesArtwork file is located. Therefore, to be safe, before running the
	// script, it's best to make sure the selected iTuensArtwork file is the only
	// file in its containing folder.
	//
	// Copyright (c) 2010 Matt Di Pasquale
	// Added tweaks Copyright (c) 2012 by Josh Jones http://www.appsbynight.com
	//
	// Permission is hereby granted, free of charge, to any person obtaining a copy
	// of this software and associated documentation files (the "Software"), to deal
	// in the Software without restriction, including without limitation the rights
	// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	// copies of the Software, and to permit persons to whom the Software is
	// furnished to do so, subject to the following conditions:
	//
	// The above copyright notice and this permission notice shall be included in
	// all copies or substantial portions of the Software.
	//
	// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	// THE SOFTWARE.
	//
	// Prerequisite:
	// First, create at least a 1024x1024 px PNG file according to:
	// http://developer.apple.com/library/ios/#documentation/iphone/conceptual/iphoneosprogrammingguide/BuildTimeConfiguration/BuildTimeConfiguration.html
	//
	// Install - Save Create Icons.jsx to:
	// Win: C:\Program Files\Adobe\Adobe Utilities\ExtendScript Toolkit CS5\SDK
	// Mac: /Applications/Utilities/Adobe Utilities/ExtendScript Toolkit CS5/SDK
	// * Restart Photoshop
	//
	// Update:
	// * Just modify & save, no need to resart Photoshop once it's installed.
	//
	// Run:
	// * With Photoshop open, select File > Scripts > Create Icons
	// * When prompted select the prepared iTunesArtwork file for your app.
	// * The different version of the icons will get saved to the same folder that
	// the iTunesArtwork file is in.
	//
	// Adobe Photoshop JavaScript Reference
	// http://www.adobe.com/devnet/photoshop/scripting.html
	// Turn debugger on. 0 is off.
	// $.level = 1;
	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-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
	}