67 lines
1.6 KiB
Python
67 lines
1.6 KiB
Python
"""Shared functionality for home screen apps
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Apps in the "homescreen" should behave in a similar manner to not confuse users.
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In particular, they *should*:
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* Call "homescreen.init()" at the beginning. This will initiate ugfx, clear the screen and
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initiate button handline.
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* Use "pyb.wfi()" as much as possible to avoid draining the battery.
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* Not use
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They also *may*:
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* Display a name, returned by "homescreen.name()"
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* Display network strength "homescreen.wifi_strength()" (0-1, might return "None" if not connected)
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* Display remaining battery "homescreen.battery()" (0-1)
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"""
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___license___ = "MIT"
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___dependencies___ = ["database", "buttons", "random", "app"]
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import database, ugfx, random, buttons, time, select
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from app import App
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_state = None
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def init(enable_menu_button = True):
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global _state
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_state = {"menu": False}
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ugfx.init()
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ugfx.orientation(90)
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if enable_menu_button:
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buttons.init()
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buttons.enable_interrupt("BTN_MENU", lambda t: set_state("menu"), on_release = True)
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def set_state(key, value = True):
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# we can't allocate memory in interrupts, so make sure all keys are set beforehand and
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# you're only using numbers and booleans
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global _state
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_state[key] = value
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def clean_up():
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buttons.disable_all_interrupt()
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def check():
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global _state
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if _state["menu"]:
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clean_up()
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App("launcher").boot()
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def sleep(interval = 500):
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check()
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time.sleep_ms(interval) # todo: deep sleep
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check()
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def name(default = None):
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return database.get("homescreen.name", default)
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def wifi_strength():
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return random.random()
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def battery():
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return random.random()
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