object:selectValue()

Overview

Selects a specific row within a specific column of the PickerWheelWidget. Optionally allows you to snap directly/instantly to the row instead of via default scrolling motion.

Gotchas

• This call will be ignored if the specified column is being controlled/manipulated by the user via touch at the time of execution.
• If the column is currently scrolling to another row (but is not under the user’s control), this call will interrupt/override that process and proceed as commanded.
• If you have specified an onValueSelected listener function in the widget’s constructor, that function will be called when this command executes.

Syntax

object:selectValue( targetColumn, targetIndex [, snapToIndex] )

Example

local widget = require( "widget" )

-- Set up the picker wheel columns
local columnData = 
{ 
    { 
        align = "left",
        width = 124,
        labelPadding = 20,
        startIndex = 2,
        labels = { "Hoodie", "Short Sleeve", "Long Sleeve", "Sweatshirt" }
    },
    {
        align = "left",
        width = 96,
        labelPadding = 10,
        startIndex = 1,
        labels = { "Dark Grey", "White", "Black", "Orange" }
    },
    {
        align = "left",
        width = 60,
        labelPadding = 10,
        startIndex = 3,
        labels = { "S", "M", "L", "XL", "XXL" }
    }
}

-- Create the widget
local pickerWheel = widget.newPickerWheel(
{
    x = display.contentCenterX,
    top = display.contentHeight - 160,
    columns = columnData,
    style = "resizable",
    width = 280,
    rowHeight = 32,
    fontSize = 14
})

-- Select the third row in the first column
pickerWheel:selectValue( 1, 3 )

-- After 4000 milliseconds (4 seconds), select the fourth row in the second column
timer.performWithDelay( 4000, function() pickerWheel:selectValue( 2, 4 ); end )