随时监测UITextField内容变化

//实时监测textField的值得变化

NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(infoAction), name:UITextFieldTextDidChangeNotification , object: nil)

func infoAction()  {

if textView.text == nil {

textFieldClicked()

}

let tips = AMapInputTipsSearchRequest()

tips.keywords=textView.text

tips.city="合肥"

print(textView.text)

self.search.AMapInputTipsSearch(tips)

}