Druid Back Handler Component

Description

The Back Handler component is designed to handle back button actions, including the Android back button and the Backspace key. It provides a simple way to implement back navigation or other actions when the user presses the back button.

Features

Handles Android back button and Backspace key presses
Customizable callback function
Optional parameters to pass to the callback
Event-based architecture

Basic Usage

local callback = function(self, params)
    -- Handle back action here
    print("Back button pressed!")
end

local params = { custom_data = "value" }
local back_handler = self.druid:new_back_handler(callback, params)

Parameters

callback: (optional) Function to call when back button is pressed
params: (optional) Custom data to pass to the callback

Events

The Back Handler component provides an event you can subscribe to:

-- Subscribe to back event
back_handler.on_back:subscribe(function(self, params)
    print("Back button was pressed!")
end)

Notes

The Back Handler component requires proper key triggers setup in your input.binding file for correct operation
Back Handler is recommended to be placed in every game window to handle closing or in the main screen to call settings windows
Multiple Back Handlers can be active at the same time, but only the first one that processes the input will trigger its callback
Back Handler reacts on release action of ACTION_BACK or ACTION_BACKSPACE

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