类型 布尔值 事件 completion 修订版本 版本 2024.3703 关键词 completion, completed 
如果用户成功完成了模态交互(例如使用相机),则该布尔属性值为 true。
-- Video completion listener
local onVideoComplete = function( event )
    print( "video session ended" )
end
-- Capture completion listener
local function onComplete( event )
    if event.completed then
        media.playVideo( event.url, media.RemoteSource, true, onVideoComplete )
        print( event.duration )
        print( event.fileSize )
    end
end
if media.hasSource( media.Camera ) then
    media.captureVideo( { listener=onComplete } )
else
    native.showAlert( "Corona", "This device does not have a camera.", { "OK" } )
end