我可以限制一个UITextField的字符集吗？ [英] Can I limit the character set for a UITextField?

问题描述

我有一个位图字体，它没有每个字符，如重音字符（éîü等）或符号如¥或©，我用来显示用户名在一个Highscore表中一个游戏。

I have a bitmap font which which doesn't have every single character, such as accented characters (é î ü etc) or symbols such as "¥" or © which I'm using to display usernames in a Highscore table for a game.

是否可以将UIKit键盘限制为特定字符，或只允许UITextField中的某些字符？还是我要滚动我自己的输入机制？

Is it possible to limit the UIKit keyboard to certain characters, or only allow certain characters in the UITextField? Or will I have to roll my own input mechanism? I'm thinking and old school, Arcade style, one letter at a time "thing" would be ok.

推荐答案

你可以尝试使用以下UITextFieldDelegate方法：

You could try using the following UITextFieldDelegate method:

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string;

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