UITextField 清除按钮不显示 [英] UITextField Clear Button Does Not Show

问题描述

我想始终在 UITextField 中显示一个清除按钮.我试图在 .xib Interface Builder 中设置它:并在代码中使用这一行:[_firstNameField setClearButtonMode:UITextFieldViewModeAlways];

I want to show a clear button always in a UITextField. I have tried to both set this in .xib Interface Builder: and in code using this line: [_firstNameField setClearButtonMode:UITextFieldViewModeAlways];

两者都不会导致按钮显示.请帮忙.

Neither causes the button to show. Help please.

推荐答案

当您将其设置为 UITextFieldViewModeAlways 时，只要 UITextField 上有文本，就会出现清除按钮.

When you set it to UITextFieldViewModeAlways the clear button appears as long as there is text on the UITextField.

希望这会有所帮助！

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