iPhone Mobile Safari: Force keyboard open

Try this

Tested on Safari iPhone 7 & iPhone 6 Plus, Android 4.4

and it opened iOS virtual keyboard successfully when I touched the button.

condition

1) make a Button to trigger keypress event => $('.btn_abc')

2) make a text input tag, and set the ID to this element => $('#search_input')

$( document ).ready(function() {

  var focusTextField = function(){
    console.log("focusElement");
  };

  var onKeypressHandler = function(){
    console.log("* * * keypress event handler")
    $('#search_input').blur().focus();
  };

  var onClickHandler = function() {
    $('.btn_abc').trigger('keypress');
  };

  $('#search_input').bind('focus', focusTextField);
  $('.btn_abc').bind('click', onClickHandler);
  $('.btn_abc').bind('keypress', onKeypressHandler);

});