自动生成Android不同分辨率下的图片

转自: http://blog.csdn.net/offbye/article/details/50012605
Android屏幕分辨率适配的图标处理比较麻烦，让UI做不同尺寸的图片也挺浪费时间的，并且容易出错，于是用Python写了个工具自动化处理图片，UI只需要做好1080*1920分辨率下的图片就可以了，其它分辨率的图片自动生成。

[python] view
plain copy

import os.path

import sys

from PIL import Image

"""

自动生成不同分辨率下的App图片

UI设计1080*1920分辨率图片，放在drawable-xxhdpi目录下，自动生成其它的分辨率图片

"""

__author__ = ['"Xitao":<offbye@gmail.com>']

def image_resize(img_file, target, percent):

"""resize image and save to target path

:param img_file: image file path

:param target: save path

:param percent: resize percent

:return:

"""

img = Image.open(img_file)

print(img.size)

width, height = img.size

target_img = img.resize((int(width * percent), int(height * percent)), Image.ANTIALIAS)

target_img.save(target)

img.close()

target_img.close()

print(" save target image to " + target)

def path_resize(src, target, percent):

if not os.path.isdir(src):

print(src + " must be a dir")

return -1

os.chdir(src)

cwd = os.getcwd()

dirs = os.listdir(cwd)

for file_name in dirs:

print file_name

if file_name.endswith('.9.png'):

continue

src_file = os.path.join(cwd, file_name)

if not os.path.exists(target):

os.mkdir(target)

image_resize(src_file, target + '/' + file_name, percent)

def android(res_dir):

xxhdpi_path = res_dir + "/drawable-xxhdpi/"

if not os.path.isdir(xxhdpi_path):

print("xxhdpi_path must be a dir")

return -1

path_resize(xxhdpi_path, res_dir + '/drawable-xhdpi', 0.667)

path_resize(xxhdpi_path, res_dir + '/drawable-hdpi', 0.444)

path_resize(xxhdpi_path, res_dir + '/drawable-mdpi', 0.296)

if __name__ == "__main__":

print('please input your androd res dir path')

print(sys.argv)

if sys.argv[1]:

android(sys.argv[1])