network.cancel()

requestId _{^（必需）}

用户数据。 由 network.request()、network.upload() 或 network.download() 提供的请求句柄。此句柄由这些函数中的每一个返回，并还在 networkRequest 事件中提供。

根据用户输入取消请求

local function networkListener( event )

    if ( event.isError ) then
        print( "Network error: ", event.response )
    else
        print( "Request complete" )
    end
end
 
-- Start the request:
local requestId = network.request( "https://encrypted.google.com", "GET", networkListener )

-- Create a cancel button that can cancel the request:
local cancelButton = display.newImage( "cancelButton.png" )

function cancelButton:tap( event )
    print( "Canceling request via cancel button" )
    network.cancel( requestId )
end

cancelButton:addEventListener( "tap", cancelButton )

在进度侦听器中取消请求

-- The following sample code starts an image download and, in the initial progress
-- notification, determines whether or not to continue based on the file's size.

local function networkListener( event )

    if ( event.isError ) then
        print( "Network error: ", event.response )
    elseif ( event.phase == "began" ) and ( event.bytesEstimated > 80000 ) then
        print( "Canceling request, file is too big!" )
        network.cancel( event.requestId )
    end
end

-- Start the image download
network.download(
    "https://plugins.solar2d.com/images/logo-banner.png",
    "GET",
    networkListener,
    { progress = true },
    "bannerCopy.png",
    system.TemporaryDirectory )