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Feb 15th, 2019
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  1. import UIKit
  2. class PostViewController : UIViewController {
  3.  
  4. // 省略..
  5.  
  6. override func viewDidLoad() {
  7.  
  8. // textView の Delegate 設定.
  9. self.textView.delegate = self
  10. }
  11.  
  12. // 省略..
  13. }
  14.  
  15. // TextView の Delegate.
  16. extension PostViewController : UITextViewDelegate {
  17.  
  18. // 文字が入力された.
  19. func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool {
  20.  
  21. // 改行だったら、キーボードを閉じる.
  22. if text == "\n" {
  23. self.textView.resignFirstResponder()
  24. return false
  25. }
  26.  
  27. // 改行以外は、入力を許可.
  28. return true
  29. }
  30. }
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