tkinter : fast image tool on pydroid3.

Today, one simple example fast tool for images:

Let's see this start source code:

# -*- coding: utf-8 -*-
"""Image Editor - consistent GUI sizes (Pydroid / Android)"""
import os
import shutil
import zipfile
from datetime import datetime
import tkinter as tk
from tkinter import ttk, filedialog, messagebox, font as tkfont
from PIL import Image, ImageTk, ImageOps, ImageEnhance
VALID_EXTS = (".png", ".jpg", ".jpeg", ".bmp", ".webp", ".gif", ".tiff", ".tif")
def get_android_start_dir():
    candidates = [
        "/storage/emulated/0", "/sdcard",
        "/storage/emulated/0/Download", "/sdcard/Download",
        "/storage/emulated/0/DCIM", "/sdcard/DCIM",
        "/storage/emulated/0/Pictures", "/sdcard/Pictures",
        os.path.expanduser("\~"), "/",
    ]
    for path in candidates:
        if os.path.isdir(path) and os.access(path, os.R_OK):
            return path
    return os.getcwd()
...