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back_handler_api.md

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druid.back_handler API

at /druid/base/back_handler.lua

Component to handle back button. It handles Android back button and Backspace key.

Setup

Create back handler component with druid: druid:new_back_handler(callback)

Notes

  • Key triggers in input.binding should be setup for correct working
  • It uses a key_back and key_backspace action ids

Functions

Fields

init

back_handler:init([callback], [params])

The Back Handler constructor

  • Parameters:
    • [callback] (function|nil): The callback to call when the back handler is triggered
    • [params] (any): Custom args to pass in the callback

Fields

  • on_back (event): fun(self: druid.back_handler, params: any?) Trigger on back handler action

  • params (any): Custom args to pass in the callback