uitextfield - iOS编程怎么给自定义键盘添加一个切换输入法的按钮

Question

UITextfield里面的自定键盘, 我想加一个按钮,点击之后切换到手机自身的输入法,请问需要调用系统的哪个方法呢?

Answer 1

textField.inputView = nil;

Answer 2

        self.field.inputView = nil;
        self.field.inputAccessoryView = nil;
        [self.field reloadInputViews];