I am using the digitalbush masked input jQuery plugin. It is working fine in web browsers and the iPhone browser perfectly, but it is not working for Android mobile devices.
To further enhance the accepted answer of Tony Brasunas, add following snippet in jquery.maskedinput.js for point number 3 to dynamically increase maxlength so it doesn't interfere with caret action.
Remove the input's maxlength attribute or set it to a value certain not to interfere with the caret action, like 20.
defs = $.mask.definitions;
tests = [];
partialPosition = len = mask.length;
firstNonMaskPos = null;
//insert snippet below
if (chrome && android) {
console.log("chrome && android");
var allAllowedRegExps = '';
jQuery.each(defs, function (key, value) {
allAllowedRegExps = allAllowedRegExps + key;
});
allAllowedRegExps = allAllowedRegExps.replace(/\[/g, '');
allAllowedRegExps = allAllowedRegExps.replace(/\]/g, '');
allAllowedRegExps = '[^' + allAllowedRegExps + ']';
var re = new RegExp(allAllowedRegExps, "g");
var actual = mask;
var replacedVal = actual.replace(re, "");
var actualValue = actual.length - replacedVal.length;
if ($(this).attr('maxlength') !== undefined) {
$(this).attr('maxlength', parseInt(this.attr('maxlength')) + parseInt(actualValue));
}
}
mask = String(mask);