Ios 禁用UITextField键盘快捷键建议

是否有一种简单的方法可以从

UITextField

中删除键盘快捷键建议

可以使用以下命令删除键入更正：

[textField setAutocorrectionType:UITextAutocorrectionTypeNo]但是，这对快捷方式没有影响

影响sharedMenuController也不会挤压它

- (BOOL)canPerformAction:(SEL)action withSender:(id)sender {
    [UIMenuController sharedMenuController].menuVisible = NO;
    return  NO;
}

目标-C

textField.autocorrectionType = UITextAutocorrectionTypeNo;


Swift

textField.autocorrectionType = .no


文档
仅使用此选项

  textField.autocorrectionType = UITextAutocorrectionTypeNo;

通过实现
UITextFieldDelegate
方法并手动设置UITextField的text属性，解决了这个问题

默认情况下，在模拟器中，您可以通过键入“omw”来测试这种行为，它应该建议“在我的路上！”。下面的代码将阻止此操作注意：这也会禁用自动更正和检查拼写，这在我的情况下是正常的。

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
    // Pass through backspace and character input
    if (range.length > 0 && [string isEqualToString:@""]) {
        textField.text = [textField.text substringToIndex:textField.text.length-1];
    } else {
        textField.text = [textField.text stringByAppendingString:string];
    }
    // Return NO to override default UITextField behaviors
    return NO;
}

上述答案可能不适用于剪切/复制/粘贴情况。例如，在UITextField中剪切和粘贴文本时，结果与默认功能不同

下面是一个类似的方法：

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

NSString *textFieldNewText = [textField.text stringByReplacingCharactersInRange:range withString:string];

    if ([string isEqualToString:@""]) {
        // return when something is being cut
        return YES;
    }
    else
    {
        //set text field text
        textField.text=textFieldNewText;
        range.location=range.location+[string length];
        range.length=0;
        [self selectTextInTextField:textField range:range];
    }
    return NO;
}


//for handling cursor position when setting textfield text through code
- (void)selectTextInTextField:(UITextField *)textField range:(NSRange)range {

    UITextPosition *from = [textField positionFromPosition:[textField beginningOfDocument] offset:range.location];
    UITextPosition *to = [textField positionFromPosition:from offset:range.length];
    [textField setSelectedTextRange:[textField textRangeFromPosition:from toPosition:to]];
}

使用自动更正类型：

[mailTextField setAutocorrectionType:UITextAutocorrectionTypeNo]
 Swift 3.x或更高版本：

textField.autocorrectionType = .no

Matt的解决方案转换为Swift 5：

func textField(_ textField: UITextField,
               shouldChangeCharactersIn range: NSRange,
               replacementString string: String) -> Bool {
    // Pass through backspace and character input
    if (range.length > 0 && string.isEmpty) {
        textField.text?.removeLast()
    } else {
        textField.text?.append(string)
    }
    // Return false to override default UITextField behaviors
    return false
}

textField.autocorrectionType = .no

func textField(_ textField: UITextField,
               shouldChangeCharactersIn range: NSRange,
               replacementString string: String) -> Bool {
    // Pass through backspace and character input
    if (range.length > 0 && string.isEmpty) {
        textField.text?.removeLast()
    } else {
        textField.text?.append(string)
    }
    // Return false to override default UITextField behaviors
    return false
}