3
@IBAction func button(sender : AnyObject) {
var videoConnection : AVCaptureConnection!
videoConnection = nil
var connection : AVCaptureConnection
var port : AVCaptureInputPort
var stillImageOutput : AVCaptureStillImageOutput?
for connection in stillImageOutput?.connections{ //this line is where the error is
}
}
我想拍攝照片與我的自定義相機和我收到此錯誤
@Antonio,感謝您用「nil」替代變量作爲使用可選項的健全性檢查代碼的方法! – rob5408 2014-11-23 00:19:08