main.lua

local zip = require( "plugin.zip" ) -- 呼應build.settings裡的["plugin.zip"]

local function zipListener( event ) -- 解壓縮完成後呼叫此處
   if ( event.isError ) then -- 若解壓有錯誤會跑至此處
      print( "Unzip error" )
   else
      print( "event.name:" .. event.name ) -- event.name:zip
      print( "event.type:" .. event.type ) -- event.type:uncompress
      if ( event.response and type(event.response) == "table" ) then -- 這裡會印出所有在ZIP檔的檔名
         for i = 1, #event.response do
            print( event.response[i] )
         end
      end    
   end
end

local function networkListener( event ) -- 判斷ZIP下載成功或失敗

   if ( event.isError ) then
      print( "Network error - download failed" )
   elseif ( event.phase == "began" ) then
      print( "Progress Phase: began" )
   elseif ( event.phase == "progress" ) then -- 當progress 設為download 時，下載階段將會回傳下載進度，讓使用者能知道進度
      if event.bytesEstimated <= 0 then
          print( "Download progress: " .. event.bytesTransferred )
      else
          print( "Download progress: " .. event.bytesTransferred .. " of estimated: " .. event.bytesEstimated )
      end
   elseif ( event.phase == "ended" ) then
      if ( math.floor(event.status/100) > 3 ) then 
        --會得到一個網路的status code，3xx以上的代表下載失敗
        --404代表找不到檔案
         print( "Network error - download failed", event.status )
      else -- 成功的話跑這裡

         local options = { -- 設置壓縮或解壓的參數
           zipFile = event.response.filename, -- 在這裡filename會是test.zip
            zipBaseDir = event.response.baseDirectory, -- zip檔所在位置
            dstBaseDir = system.DocumentsDirectory, -- 解壓縮後目標位置
            listener = zipListener,
         }

         zip.uncompress( options ) -- 完成後會呼叫zipListener
      end
   end
end

local params = {}
params.progress = "download" -- 設progress 為"download"就會回傳下載進度喔！！
local URL = "http://coronaisland.s3.amazonaws.com/coronabook/coronaisland_ziptest.zip"
network.download( URL, "GET", networkListener, params, "test.zip", system.TemporaryDirectory ) -- 預設一個下載檔名後放在暫存資料夾來作處理