WebJul 17, 2024 · The requireActivity () and requireContext () example. July 17, 2024. When we use Fragment in our app, we often time need access to Context or Activity. We do it by … WebMay 14, 2024 · 与getActivity()和getContext()相比,这些方法的目的是什么,因为它们仍然可以抛出IllegalStateExceptions?在找不到活动或上下文时,这比返回null更可取 …
android - What is the difference between requireActivity and ...
WebApr 11, 2024 · 1 .主内容视图一定要是DrawerLayout的第一个子视图. 2 .主内容视图宽度和高度需要match_parent. 3 .必须显示指定侧滑视图的android: layout_gravity属性 android:layout_gravity = "start"时,从左向右滑出菜单android:layout_gravity = "end"时,从右向左滑出菜单不推荐使用left和right!!! 侧滑 ... Web可以看到在activityViewModels方法中实际是调用了requireActivity来进行创建。如果我们需要实现activity和Fragment的数据共享就可以通过这种方式去创建。 通过反射创建ViewModel. 虽然经过上面引入KTX库来处理,可能还是不能满足某些人的胃口。 flyers for healthcare provider services
Android支持库27.1.0新方法requireActivity(),requireContext()
WebJun 4, 2024 · Solution 1. We should split this answer in two parts. 1. The difference between activity!! and requireActivity () They both invoke getActivity () and they both throw an exception if the Activity is null. The only difference is the type of the returned exception and its message. Certainly, requireActivity () throws a more explicit exception. WebJul 31, 2024 · 1. You can use requireActivity () inside the scope of a fragment lifecycle. Inside fragment lifecycle, i.e. between onAttach () and onDetach (), you are sure that the … WebBest Java code snippets using androidx.fragment.app. FragmentActivity.setTitle (Showing top 12 results out of 315) androidx.fragment.app FragmentActivity setTitle. green island bay of green bay