按“完成/返回”按钮时隐藏文本框键盘Angularjs

Question

我创建了一个指令，当用户点击我的应用中的提交按钮时，该指令会隐藏键盘。我面临的问题仍然是如果有人点击完成或返回，它将提交表单但不会隐藏键盘。

我怎么能用我当前的指令实现这样的东西？

指令

(function() {
  'use strict';

  angular
    .module('resonance.components.directives')
    .directive('touchSubmit', function () {
    return function (scope, element, attr) {
        log('touchSubmit()');

        var textFields = element.find('input');
        element.bind('submit', function() {
            log('touchSubmit() > form was submitted');

            /* To dismiss onscreen keyboard */
            // In some cases, focus was needed before blur to dismiss onscreen keyboard
            textFields[0].focus();
            textFields[0].blur();

            /* To ensure status messages are visible on small screens */
            $window.scrollTo(0, 0);

      });
    };
  });

})();