A battery widget for the Home Screen monitoring in background.

Battery.py

# Created with Pyto

import widgets as wd
import sf_symbols as sf
import sys
from datetime import time
from UIKit import UIDevice
from background import BackgroundTask
from threading import Thread

if "monitoring_battery" in sys.modules:
    print("Already monitoring")
    raise SystemExit

sys.modules["monitoring_battery"] = True

BACKGROUND = wd.Color.rgb(255/255, 250/255, 227/255)
FOREGROUND = wd.Color.rgb(75/255, 72/255, 55/255)

device = UIDevice.currentDevice
device.setBatteryMonitoringEnabled(True)

def monitor(bg):
    prev_battery = None
    
    while True:
        battery = int(float(device.batteryLevel)*100)
        
        if battery == prev_battery:
            bg.wait(60)
            continue
        
        prev_battery = battery
        
        widget = wd.Widget()
        
        if battery <= 0.1:
            symbol = sf.BATTERY_0
        elif battery <= 0.5:
            symbol = sf.BATTERY_25
        else:
            symbol = sf.BATTERY_100
        
        battery_symbol = wd.SystemSymbol(
            symbol,
            color=FOREGROUND,
            padding=wd.PADDING_ALL,
            font_size=70
        )
        
        battery_level = wd.Text(
            str(battery)+"%",
            color=FOREGROUND,
            font=wd.Font("AmericanTypewriter-Bold", 25),
        )
        
        for layout in [
            widget.small_layout,
            widget.medium_layout,
            widget.large_layout]:
            
            layout.add_row([battery_symbol])
            layout.add_row([battery_level])
            layout.set_background_color(BACKGROUND)
        
        wd.save_widget(widget, "Battery")

def monitor_in_background():
    with BackgroundTask() as bg:
        monitor(bg)

Thread(target=monitor_in_background).start()