android 快速生成图标文件（mipmap）

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android的同一个图标因为大小匹配，对应的文件夹有这么多，我们可以通过代码将一张准备好的图标文件按照文件目录层级和大小直接进行保存

我这里用的是python的代码实现：

#coding=utf-8
import tkinter as tk
import threading
import tkinter.messagebox as tkMB
import tkinter.filedialog as tkFD
import os
from PIL import Image


class Application(tk.Frame):
    def __init__(self, master=None):
        super().__init__(master)

        self.pack()
        self.create_widgets()
    def create_widgets(self):
        self.L = tk.Label(self,text="选择图像", fg="black", bg="white")
        self.L.pack()

        self.BtnRun = tk.Button(self,width=15, height=5,text = "Run",command = self.__Run)
        self.BtnRun.pack(padx=20, side='left')
    def __Run(self):
        self.filePathName = tkFD.askopenfilename(filetypes=[('图像', '.png')])
        if('' == self.filePathName): return

        self.L['text'] = self.filePathName

        _thread = threading.Thread(target=self.__thrRun)
        _thread.setDaemon(True)
        _thread.start()
    def __thrRun(self):
        path = os.path.splitext(self.filePathName)
        retpath = path[0]
        if(not os.path.exists(retpath)):
            os.mkdir(retpath)

        self.__Save(retpath, "mipmap-hdpi", 72)
        self.__Save(retpath, "mipmap-mdpi", 48)
        self.__Save(retpath, "mipmap-xhdpi", 96)
        self.__Save(retpath, "mipmap-xxhdpi", 144)
        self.__Save(retpath,"mipmap-xxxhdpi",192)

        tkMB.showinfo("提示", "处理完成")
        self.BtnRun['state'] = tk.NORMAL
    def __Save(self,retpath,dirName,size):
        retpathName = retpath + os.sep + dirName + os.sep
        if(not os.path.exists(retpathName)):
            os.mkdir(retpathName)

        retpathName1 = retpathName + "ic_launcher.png"
        retpathName2 = retpathName + "ic_launcher_round.png"
        im = Image.open(self.filePathName)
        out = im.resize((size, size), Image.ANTIALIAS)
        out.save(retpathName1)
        out.save(retpathName2)


root = tk.Tk()
root.title('title')
root.geometry('400x200')
root.maxsize(400, 200)
root.minsize(400, 200)
app = Application(master=root)
app.mainloop()