IOS 商店使用範例

main.lua

local widget = require ("widget") -- build #1034 之前適用
local store = require("store")   -- build #261 後適用

local validProducts, invalidProducts = {}, {} -- 接收有效和無效產品用
-------------------------------------------------------------------------------
-- 處理從商店取得的產品資訊，對每個產品建立按鈕
-------------------------------------------------------------------------------
function unpackValidProducts()
    -- 建立購買按鈕
    function newBuyButton (index)
        local buyThis = function ( product )
            -- 判斷是否能夠購買
            if store.canMakePurchases then
                store.purchase( {product} )
            else
                native.showAlert("無法購買，稍後再試！", 
                { "OK" } )
            end
        end
        -- myButton購買呼叫
        function buyThis_closure ( index )
            return function ( event )
                buyThis (validProducts[index].productIdentifier)  	 
                return true
            end        
        end
        
        local myButton = widget.newButton{
            left = display.contentWidth*.8, 
            top = display.contentHeight*.5,
            yOffset = -1,
            label = validProducts[index].title .. "  " ..string.format("%.2f", validProducts[index].price),
            default = "buttonBuy.png",
            over = "buttonBuyDown.png",
            fontSize = 14,
            width = display.contentWidth*.4, height = display.contentWidth*.1,
            onRelease = buyThis_closure (index)
        }
        return myButton
    end
    
    if not validProducts then
        native.showAlert( "In App features not available", "initStore() failed", { "OK" } )        
    else
        -- 列出有效產品按鈕
        for i=1, #validProducts do            
            local myButton = newBuyButton(i)
            myButton.x = display.contentWidth - myButton.width - 5
            myButton.y = i * 5 + (2 * i - 1) * myButton.height / 2
        end
        -- 列出無效產品
        for i=1, #invalidProducts do
            native.showAlert( "Item " .. invalidProducts[i] .. " is invalid.",
            { "OK" } )
        end
    end
end

-------------------------------------------------------------------------------
-- 取得產品資訊，呼叫 store.loadProducts() 後被喚醒
-------------------------------------------------------------------------------
function loadProductsCallback( event )
    validProducts = event.products
    invalidProducts = event.invalidProducts    
    unpackValidProducts ()
end

-------------------------------------------------------------------------------
-- 專門處理交易的事件，在store.init()裡做設置
-------------------------------------------------------------------------------
function transactionCallback( event )
    if event.transaction.state == "purchased" then
        native.showAlert("state",event.transaction.state,{"ok"})
        native.showAlert("",event.transaction.productIdentifier,{"ok"})

    elseif  event.transaction.state == "restored" then
        native.showAlert("restore","restored",{"ok"})

    elseif event.transaction.state == "cancelled" then
        native.showAlert("cancelled","Transaction cancelled by user.",{"ok"})

    elseif event.transaction.state == "failed" then
        native.showAlert("failed","Transaction failed, type: ", 
        event.transaction.errorType, event.transaction.errorString,{"ok"})

    else
        native.showAlert("Unknown event","Unknown event",{"ok"})

    end
    
    -- 告訴商店已完成交易，若有提供下載的資料，下載完後再呼叫
    store.finishTransaction( event.transaction )
end

-- 產品列表，有列出的才會做讀取
local listOfProducts = 
{
    "coin5",
}

-- 連結到商店，需設定CallBack
store.init (transactionCallback )

store.loadProducts( listOfProducts, loadProductsCallback )