android - 是否有可能没有 Activity 的 fragment ？

Question

这不太可能，但它可能会为我节省大量时间来重新编写相同的代码。我想使用警报类型服务(如 Chathead)实现 UI，但我仍然想使用我的 fragment 。可能吗？我知道我可以向窗口添加 View 但 fragment ？

Answer 1

fragment 是 Activity 的一部分，因此不能替代 Activity 。虽然他们表现得像 Activity ，但他们不能自己站立。它的 like view 本身不能表现得像 activity。

From Android Developers :

A Fragment represents a behavior or a portion of user interface in an Activity. You can combine multiple fragments in a single activity to build a multi-pane UI and reuse a fragment in multiple activities. You can think of a fragment as a modular section of an activity, which has its own lifecycle, receives its own input events, and which you can add or remove while the activity is running (sort of like a "sub activity" that you can reuse in different activities).

希望对您有所帮助。