The delete key in the keypad should have an auto-repeat capability to allow the user to efficiently delete a long number quickly and efficiently. It should behave while the key is being pressed and after a delay.
The native delete key on iOS will delete the first character on the initial press and then start repeating the delete after an initial delay of about 100ms. Each character is deleted at a rate of about 50ms. These numbers are just ballpark and would have to be tweaked.
The delete key in the keypad should have an auto-repeat capability to allow the user to efficiently delete a long number quickly and efficiently. It should behave while the key is being pressed and after a delay.
The native delete key on iOS will delete the first character on the initial press and then start repeating the delete after an initial delay of about 100ms. Each character is deleted at a rate of about 50ms. These numbers are just ballpark and would have to be tweaked.