HTML Mobile -forcing the soft keyboard to hide

陌路散爱 提交于 2019-11-26 22:06:32

Since the soft keyboard is part of the OS, more often than not, you won't be able to hide it - also, on iOS, hiding the keyboard drops focus from the element.

However, if you use the onFocus attribute on the input, and then blur() the text input immediately, the keyboard will hide itself and the onFocus event can set a variable to define which text input was focused last.

Then alter your on-page keyboard to only alter the last-focused (check using the variable) text input, rather than simulating a key press.

Scott S's answer worked perfectly.

I was coding a web-based phone dialpad for mobile, and every time the user would press a number on the keypad (composed of td span elements in a table), the softkeyboard would pop up. I also wanted the user to not be able to tap into the input box of the number being dialed. This actually solved both problems in 1 shot. The following was used:

<input type="text" id="phone-number" onfocus="blur();" />
dagopert

For further readers/searchers:

As Rene Pot points out on this topic,

By setting the input field to readonly="true" you should prevent anyone typing anything in it, but still be able to launch a click event on it.

With this method, you can avoid popping up the "soft" Keyboard and still launch click events / fill the input by any on-screen keyboard.

This solution also works fine with date-time-pickers which generally already implement controls.

Bob Jase

Those answers aren't bad, but they are limited in that they don't actually allow you to enter data. We had a similar problem where we were using barcode readers to enter data into a field, but we wanted to suppress the keyboard.

This is what I put together, it works pretty well:

https://codepen.io/bobjase/pen/QrQQvd/

<!-- must be a select box with no children to suppress the keyboard -->
input: <select id="hiddenField" /> 
<span id="fakecursor" />

<input type="text" readonly="readonly" id="visibleField" />
<div id="cursorMeasuringDiv" />

#hiddenField {
  height:17px; 
  width:1px;
  position:absolute;
  margin-left:3px;
  margin-top:2px;
  border:none;
  border-width:0px 0px 0px 1px;
}

#cursorMeasuringDiv {
  position:absolute;
  visibility:hidden;
  margin:0px;
  padding:0px;
}

#hiddenField:focus {
  border:1px solid gray;  
  border-width:0px 0px 0px 1px;
  outline:none;
  animation-name: cursor;
  animation-duration: 1s;
  animation-iteration-count: infinite;
}

@keyframes cursor {
    from {opacity:0;}
    to {opacity:1;}
}

// whenever the visible field gets focused
$("#visibleField").bind("focus", function(e) {
  // silently shift the focus to the hidden select box
  $("#hiddenField").focus();
  $("#cursorMeasuringDiv").css("font", $("#visibleField").css("font"));
});

// whenever the user types on his keyboard in the select box
// which is natively supported for jumping to an <option>
$("#hiddenField").bind("keypress",function(e) {
  // get the current value of the readonly field
  var currentValue = $("#visibleField").val();

  // and append the key the user pressed into that field
  $("#visibleField").val(currentValue + e.key);
  $("#cursorMeasuringDiv").text(currentValue + e.key);

  // measure the width of the cursor offset
  var offset = 3;
  var textWidth = $("#cursorMeasuringDiv").width();
  $("#hiddenField").css("marginLeft",Math.min(offset+textWidth,$("#visibleField").width()));

});

When you click in the <input> box, it simulates a cursor in that box but really puts the focus on an empty <select> box. Select boxes naturally allow for keypresses to support jumping to an element in the list so it was only a matter of rerouting the keypress to the original input and offsetting the simulated cursor.

This won't work for backspace, delete, etc... but we didn't need those. You could probably use jQuery's trigger to send the keyboard event directly to another input box somewhere but we didn't need to bother with that so I didn't do it.

example how i made it , After i fill a Maximum length it will blur from my Field (and the Keyboard will disappear ) , if you have more than one field , you can just add the line that i add '//'

var MaxLength = 8;
    $(document).ready(function () {
        $('#MyTB').keyup(function () {
            if ($(this).val().length >= MaxLength) {
               $('#MyTB').blur();
             //  $('#MyTB2').focus();
         }
          }); });
user10226243

I could not use some of the suggestions provided.

In my case I had Google Chrome being used to display an Oracle APEX Application. There were some very specific input fields that allowed you to start typing a value and a list of values would begin to be displayed and reduced as you became more specific in your typing. Once you selected the item from the list of available options, the focus would still be on the input field.

I found that my solution was easily accomplished with a custom event that throws a custom error like the following:

throw "throwing a custom error exits input and hides keyboard";
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