How can I define my own InputFilter and allow for only certain types (see post) of input?
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22-06-2021 - |
Frage
Let's say I have an EditText and I want to restrict it to 0-9 and A-F (inclusive), for hex input. Is there a way I can do that? I tried looking at InputFilters and I'm not sure that's the right way. Has anyone achieved this?
Lösung
Set the input type to number and digits to "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" In an xml file it would look like this:
<EditText
android:id="@+id/hexedit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:digits="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
android:inputType="number"
/>
You can experiment with different inputTypes to see which soft keyboard layout they bring up.
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