英文:
How to create a List which of type Activity in android
问题
如何创建一个类型为Activity的List？
英文:
List<Activity> allowedActivites = new ArrayList<>();
allowedActivites.add(SplashActivity.class);
allowedActivites.add(SubscriptionActivity.class);
How to create a List which is of type activity?
答案1
得分: 2
你尝试添加到列表的项目是类。如果你想要一个扩展Activity的类的列表，类型是List<Class<? extends Activity>>。
所以你可以这样做：
List<Class<? extends Activity>> allowedActivites = new ArrayList<>();
allowedActivites.add(SplashActivity.class);
allowedActivites.add(SubscriptionActivity.class);
只要它们是Activity的子类。
英文:
The items that you're trying to add to your list are classes. If you want a list of classes that extend Activity, the type is List<Class<? extends Activity>>.
So you can do
List<Class<? extends Activity>> allowedActivites = new ArrayList<>();
allowedActivites.add(SplashActivity.class);
allowedActivites.add(SubscriptionActivity.class);
as long as those are subclasses of Activity.
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