How to handle uppercase and lowercase characters when using UIKeyCommand

Question

We are in the process of receiving and processing keyboard input.

Among my source code,

UIKeyCommand *menuKey = [UIKeyCommand keyCommandWithInput:[NSString stringWithFormat:@"%c", 77]
                                                modifierFlags:0
                                                       action:@selector(menuKey:)];

There is this part.

However, if you process it like this, it will only react when it is an uppercase 'M', and it does not respond when it is a lowercase 'm'.

Is there a way to handle UIKeyCommand with all uppercase and lowercase characters?

check if this link can help you http://nshipster.com/uikeycommand/ — Dattatray Deokar, Nov 17 '17 at 08:05

score 1 · Answer 1 · answered Nov 17 '17 at 08:07

1

You can add command for both Upper case Character and lowercase character

answered Nov 17 '17 at 08:07

Dattatray Deokar

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UIKeyCommand *menuKeyUpperCase = [UIKeyCommand keyCommandWithInput:[NSString stringWithFormat:@"%c", 77] modifierFlags:UIKeyModifierShift action:@selector(menuKey:)]; Should I add this? Is there no other way without adding? – Nam Nov 17 '17 at 08:38
I don't see any other option. – Dattatray Deokar Nov 17 '17 at 09:14

score 1 · Accepted Answer · answered Nov 17 '17 at 08:25

1

The reason is that you only look for 77 which is ASCII code for M. In order to allow m, you need to add 109 as well

answered Nov 17 '17 at 08:25

Malik

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UIKeyCommand *menuKeyUpperCase = [UIKeyCommand keyCommandWithInput:[NSString stringWithFormat:@"%c", 77] modifierFlags:UIKeyModifierShift action:@selector(menuKey:)]; Should I add this? Is there no other way without adding? – Nam Nov 17 '17 at 08:38

How to handle uppercase and lowercase characters when using UIKeyCommand

2 Answers2