UITextField佔位符在子類化時移位

我使用子類型UITextField來使用自定義字體。當我爲該textfield設置一個佔位符時，它會稍微向上移動，但是當我開始輸入文本時，文本的frame沒有問題。有沒有辦法解決佔位符轉移問題。UITextField佔位符在子類化時移位

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2013-02-26 Nassif

請參閱：http://stackoverflow.com/questions/1340224/iphone-uitextfield-change-placeholder-text-color＆http://stackoverflow.com/questions/11539404/centering-placeholder-text-in-子類的-的UITextField – Vishal 2013-02-26 04:37:28

self.txtFirstName.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter; 
self.txtFirstName.autocapitalizationType = UITextAutocapitalizationTypeSentences; 
self.txtFirstName.placeholder = @"Enter First Name here"; 
self.txtFirstName.textAlignment = UITextAlignmentLeft;

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2013-02-26 04:42:40 iPatel

我有同樣的問題，我試圖setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter這解決了我的問題。

  UITextField *txtPassword = [[UITextField alloc] initWithFrame:CGRectMake(15,55, 255, 25)]; 
      [txtPassword setPlaceholder:@"Password..."]; 
      [txtPassword setBackgroundColor:[UIColor whiteColor]]; 
      [txtPassword setFont:[UIFont fontWithName:@"Helvetica" size:15]]; 
      [txtPassword setSecureTextEntry:YES]; 
      [txtPassword setTextAlignment:NSTextAlignmentCenter]; 
      [txtPassword setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter]; 
      [txtPassword becomeFirstResponder];

希望這會有所幫助。

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2013-02-26 04:48:14

UITextField佔位符在子類化時移位

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