这两天更新完Xcode8之后发现Xcode对图标的要求又有了变化，之前用的一个小应用“IconKit”还没赶上节奏，已经不能满足Xcode8的要求了。

于是就想起来用Python自己做个脚本来生成图标。

其实这个脚本很早就写了，现在为了适应iOS10，就修改完善下，并且放到了GitHub。

可以看看效果图：

1.png

代码：

#encoding=utf-8
#by 不灭的小灯灯
#create date 2016/5/22
#update 2016/9/21
#support iOS 10
#site www.winterfeel.com
import os
import sys
from PIL import Image
 
iosSizes = ['20@1x','20@2x','20@3x','29@1x','29@2x','29@3x','40@1x','40@2x','40@3x','60@2x','60@3x','60@3x','76@1x','76@2x','167@1x']
androidSizes = [32,48,72,96,144,192]
androidNames = ['ldpi','mdpi','hdpi','xhdpi','xxhdpi','xxxhdpi']
 
sizesiOS = [(0,960),(0, 1136),(750, 1334),(1242, 2208),(1536, 2048),(2048, 2732)]
foldersiOS = ['iPhone4s','iPhone5','iPhone6','iPhone6plus','iPad','iPadLarge']
 
sizesAndroid = [(480,800),(720,1280),(1080,1920)]
foldersAndroid = ['480x800','720x1280','1080x1920']
 
def processIcon(filename,platform):
 icon = Image.open(filename).convert("RGBA")
 if icon.size[0] != icon.size[1]:
 print 'Icon file must be a rectangle!'
 return
 if platform == 'android':
 #安卓圆角
 mask = Image.open('mask.png')
 r,g,b,a = mask.split()
 icon.putalpha(a)
 if not os.path.isdir('androidIcon'):
 os.mkdir('androidIcon')
 index = 0
 for size in androidSizes:
 im = icon.resize((size,size),Image.BILINEAR)
 im.save('androidIcon/icon-'+ androidNames[index]+'.png')
 index = index + 1
 else:
 if not os.path.isdir('iosIcon'):
 os.mkdir('iosIcon')
 for size in iosSizes:
 originalSize = int(size.split('@')[0])#原始尺寸
 multiply = int(size.split('@')[1][0:1])#倍数
 im = icon.resize((originalSize*multiply,originalSize*multiply),Image.BILINEAR)
 im.save('iosIcon/icon'+size+'.png')
 print 'Congratulations!It's all done!'
 
def walk_dir(dir,platform):
 files = os.listdir(dir)
 for name in files:
 if name.split('.')[-1] == 'jpg' or name.split('.')[-1] == 'png':#处理jpg和png
 produceImage(name,platform)
 print 'Congratulations!It's all done!'
 
def produceImage(filename,platform):
 print 'Processing:' + filename
 img = Image.open(filename)
 index = 0
 sizes = sizesiOS
 folders = foldersiOS
 if platform == 'android':#默认ios，如果是安卓
 sizes = sizesAndroid
 folders = foldersAndroid
 for size in sizes:
 if not os.path.isdir(folders[index]):
 os.mkdir(folders[index])
 if img.size[0] > img.size[1]:#如果是横屏，交换坐标
 im = img.resize((size[1],size[0]),Image.BILINEAR)
 im.save(folders[index]+'/'+filename)
 else:
 im = img.resize(size,Image.BILINEAR)
 im.save(folders[index]+'/'+filename)
 index = index + 1
 
action = sys.argv[1]#action:icon or screenshot
if action == 'screenshot': 
 platform = sys.argv[2]#platform
 if platform == 'ios':
 walk_dir('./','ios')
 elif platform == 'android':
 walk_dir('./','android')
 else:
 print 'Hey,Platform can only be "ios" or "android" !'
elif action == 'icon':
 filename = sys.argv[2]#image filename
 platform = sys.argv[3]#platform
 if not os.path.exists(filename):
 print 'Hey,File Not Found!'
 else:
 if platform == 'ios':
 processIcon(filename,'ios')
 elif platform == 'android':
 processIcon(filename,'android')
 else:
 print 'Hey,Platform can only be "ios" or "android" !'
else:
 print 'Hey,action can only be "icon" or "screenshot" !'

脚本环境要求

Python 2.7

PIL or Pillow

笔者亲测，也许是笔者太菜，试了各种方法安装PIL总是出错，最后还是用了Pillow，效果一样的。

怎么使用脚本

在Windows的命令行或者Mac的终端，输入:

python tool.py [action] [filename] [platform]
action：icon 或者 screenshot
filename：图标文件名，截屏不需要文件名，自动遍历
platform：ios 或者 android

举一些例子：

生成iOS的图标：python tool.py icon icon.jpg ios

生成安卓的图标：python tool.py icon icon.jpg android

生成iOS的截屏：python tool.py screenshot ios

生成安卓的截屏：python tool.py screenshot android

注意：

生成安卓圆角图标需要一张PNG来裁剪，尺寸512x512，70圆角，GitHub中已经附带。

生成截屏时会自动遍历所有JPG和PNG文件，自动识别横竖屏

结语

如果你觉得有用，欢迎在GitHub中Star一下，也欢迎改进，代码简单易懂加了注释。