NO , we cannot disable or Hidden properties of the keyboard, it is impossible to process the default property of Keyboardtype in iOS , if you want to do this your own setting, then you go to Custom Keyboard Concept. try again once with Keyboard Types
Choice 2
in this place you can add one Overlay to disable, you can get a sample from here .but
If Apple finds out that the key is private or. disabled, they will most likely reject the application.
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