Angularjs：如何在页面加载时预先选择输入文本字段？

Question

I have a simple text input field in my angular app which is prefilled with a default value. I want to preselect the text on page load.

Input field:

<input type="text" ng-model="city" class="form-control" select-on-load />

Directive:

weatherApp.directive('selectOnLoad', function () {
// Linker function
return function (scope, element, attrs) {
    element.bind('load', function () {
        this.select();
    });
};

});

But nothing happens.

Answer 1

The answers to this question suggest that there is no load event for input elements. However, maybe you could attach the handle once the view content has loaded ?

$scope.$on('$viewContentLoaded', function(){
    // Set a flag
  });

It isn't as neat as a directive, but it's the simplest alternative to my knowledge. The event sets a flag, the element uses an ng-focus depending on that flag, and your original directive can be updated to listen for focus, not load.

---

EDIT: I've done some searching, and can't find any ideas of a better alternative. It does feel a lot like a hack, so I welcome anyone with a better suggestion.

Answer 2

Super late but you can easily accomplish this using JS. Inside your controller...

Example...

Then inside your html id you have an input tag with a matching id

Easy peasy

Hope that helped!

Answer 3

Try this.

function selectOnLoadDirective() {
  return {
    link: function(scope, elem) {
      elem.focus().select();
    }
  };
}