在 Dart 中手动注入 [英] Manual injection in Dart

问题描述

如何在 angular dart 中手动注入实例?这将等同于 angularjs 中的以下内容:

How do you manually inject an instance in angular dart? This would be the equivalent to the following in angularjs:

var myInjector = angular.injector(["ng"]);
var $http = myInjector.get("$http");

推荐答案

来自组件内部的代码示例.

A code example from inside a component.

@NgComponent(
    selector: 'rating',
    publishAs: 'ctrl')
class RatingComponent {
  Injector _injector;
  RatingConfig _config;

  RatingComponent(this._injector) {
    _config = _injector.get(RatingConfig);
    // or
    _config = injectByName("RatingConfig");
  }

  void injectByName(String typeName) {
    _injector.types.takeWhile((Type e) {
      if (e.toString() == typeName) {
        _config = _injector.get(e);
        return false;
      }
      return true;
    });    
  }
}

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