Module ui.widget.container.inputcontainer

An InputContainer is a WidgetContainer that handles user input events including multi touches and key presses.

See InputContainer:registerTouchZones for examples of how to listen for multi touch input.

This example illustrates how to listen for a key press input event:

PanBy20 = {
    { "Shift", Input.group.Cursor },
    seqtext = "Shift+Cursor",
    doc = "pan by 20px",
    event = "Pan", args = 20, is_inactive = true,
},
PanNormal = {
    { Input.group.Cursor },
    seqtext = "Cursor",
    doc = "pan by 10 px", event = "Pan", args = 10,
},
Quit = { {"Home"} },

It is recommended to reference configurable sequences from another table and to store that table as a configuration setting.

Functions

InputContainer:registerTouchZones (zones) Register touch zones into this InputContainer.
InputContainer:updateTouchZonesOnScreenResize (new_screen_dimen) Updates touch zones based on new screen dimensions.


Functions

InputContainer:registerTouchZones (zones)
Register touch zones into this InputContainer.

See gesturedetector for a list of supported gestures.

NOTE: You are responsible for calling self:updateTouchZonesOnScreenResize with the new screen dimensions whenever the screen is rotated or resized.

Parameters:

  • zones table list of touch zones to register

Usage:

    local InputContainer = require("ui/widget/container/inputcontainer")
local test_widget = InputContainer:new{}
test_widget:registerTouchZones({
    {
        id = "foo_tap",
        ges = "tap",
        -- This binds the handler to the full screen
        screen_zone = {
            ratio_x = 0, ratio_y = 0, ratio_w = 1, ratio_h = 1,
        },
        handler = function(ges)
            print('User tapped on screen!')
            return true
        end
    },
    {
        id = "foo_swipe",
        ges = "swipe",
        -- This binds the handler to bottom half of the screen
        screen_zone = {
            ratio_x = 0, ratio_y = 0.5, ratio_w = 1, ratio_h = 0.5,
        },
        handler = function(ges)
            print("User swiped at the bottom with direction:", ges.direction)
            return true
        end
    },
})
require("ui/uimanager"):show(test_widget)
InputContainer:updateTouchZonesOnScreenResize (new_screen_dimen)
Updates touch zones based on new screen dimensions.

Parameters:

generated by LDoc 1.4.6 Last updated 2022-06-26 07:43:26