From http://ruoyusun.com/2013/08/24/a-glimpse-of-angularjs-scope-via-example.htmlFocus input after ng-show it

Focus after show.js

app = angular.module('App', []);
app.controller('MenuCtrl', function () {});
app.directive('focusIf', [function () {
  return function focusIf(scope, element, attr) {
    scope.$watch(attr.focusIf, function (newVal) {
      if (newVal) {
        scope.$evalAsync(function() {
          element[0].focus();
        });
      }
    });
  }
}]);