用Python為iOS10生成圖示和截圖

簡介

這兩天更新完Xcode8之後發現Xcode對圖示的要求又有了變化，之前用的一個小應用“IconKit”還沒趕上節奏，已經不能滿足Xcode8的要求了。

於是就想起來用Python自己做個指令碼來生成圖示。

其實這個指令碼很早就寫了，現在為了適應iOS10，就修改完善下，並且放到了GitHub。

可以看看效果圖：

程式碼：

#encoding=utf-8

#by 不滅的小燈燈

#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 = [(640,960),(640, 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':

#安卓圓角

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])#倍數

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':#處理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':#預設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]:#如果是橫屏，交換座標

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" !'

指令碼環境要求

Python 2.7

PIL or Pillow

筆者親測，也許是筆者太菜，試了各種方法安裝PIL總是出錯，最後還是用了Pillow，效果一樣的。

怎麼使用指令碼

在Windows的命令列或者Mac的終端，輸入:

python tool.py [action] [filename] [platform]

action：icon 或者 screenshot

filename：圖示檔名，截圖不需要檔名，自動遍歷

platform：ios 或者 android

舉一些例子:

生成iOS的圖示：python tool.py icon icon.jpg ios

生成安卓的圖示：python tool.py icon icon.jpg android

生成iOS的截圖：python tool.py screenshot ios

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

注意注意

生成安卓圓角圖示需要一張PNG來裁剪，尺寸512x512，70圓角，GitHub中已經附帶。

生成截圖時會自動遍歷所有JPG和PNG檔案，自動識別橫豎

GitHub地址