UIPickerView練習
Published in
1 min readDec 3, 2017
此次練習比較重要的是,類似cell的Delegate及DataSource,記得把Picker左述的兩個最重要的東西對著controller拉線
然後在controller裡面宣告要顯示的array,原本是顯示星期及早午餐,後來決定改成表情
比較重要的就是要宣告三個func,
func numberOfComponents(in pickerView: UIPickerView) -> Int (宣告picker的橫列有幾個)
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int(宣告直列要顯示的數量)
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String?(宣告pickerView要顯示的內容)