我想在 textField 中设置一个值并且无法更改该值，只能插入新值。 （科特林）

Question

我有一个注册表单，当我在输入时选择一个特定的选项时，这个表单的一个 textField 会收到一个无法更改的值，只能在这个 textField 中输入其他值。

Answer 1

If you want to have a text field only the app can update (and the user can't type into), use a TextView .

If you want them to be able to type into it, but you want to be able to set a value and "lock" it so they can't edit it anymore, you can use an EditText and do enabled = false . That also greys out the field - if you don't want that, you can do inputType = EditorInfo.TYPE_NULL to prevent the keyboard from appearing.

If you want a fixed set of options that the user can choose from, you can use an AutoCompleteTextView or the Material Components equivalent