prevent iphone default keyboard when focusing an <input>
inputmode attribute
<input inputmode='none'>
The
inputmodeglobal attribute is an enumerated attribute that hints at the type of data that might be entered by the user while editing the element or its contents. It can have the following values:
none- No virtual keyboard. For when the page implements its own keyboard input control.
I am using this successfully (Tested on Chrome/Android)
CSS-Tricks: Everything You Ever Wanted to Know About inputmode
By adding the attribute readonly (or readonly="readonly") to the input field you should prevent anyone typing anything in it, but still be able to launch a click event on it.
This is also usefull in non-mobile devices as you use a date/time picker