我的應用的流程如下：主要活動： 家居碎片 ->停電設置碎片 ->停電碎片 ->家居碎片出于某種原因，當我嘗試從BlackoutFragment轉到HomeFragment時，MainActivity變為空，并且在我離開應用程序并返回它之前沒有任何渲染。左邊是HomeFragment通常的樣子，右邊是當我導航回它時的樣子：我用來設置片段的方法集： // Which is invoked like // SetFragment(typeof(HomeFragment), "Home", true, true, false); public void SetFragment(Type fragmentType, string fragmentName, bool addToBackStack, bool showNavigationIndicator, bool useSlideAnimation) { if (fragmentType == typeof(HomeFragment)) SetFragment(new HomeFragment(), fragmentType, fragmentName, addToBackStack, showNavigationIndicator, useSlideAnimation); else if (fragmentType == typeof(BlackoutFragment)) SetFragment(new BlackoutFragment(), fragmentType, fragmentName, addToBackStack, showNavigationIndicator, useSlideAnimation); else if (fragmentType == typeof(BlackoutSetupFragment)) SetFragment(new BlackoutSetupFragment(), fragmentType, fragmentName, addToBackStack, showNavigationIndicator, useSlideAnimation); } private void SetFragment(Fragment fragment, Type fragmentType, string fragmentName, bool addToBackStack, bool showNavigationIndicator, bool useSlideAnimation) { FragmentTransaction transaction = this.FragmentManager.BeginTransaction(); if (useSlideAnimation) transaction.SetCustomAnimations(Resource.Animator.enter_from_left, Resource.Animator.exit_to_right, Resource.Animator.enter_from_right, Resource.Animator.exit_to_left); transaction.Replace(Resource.Id.content_main_fragment_layout, fragment, fragmentType.Name); if (addToBackStack) transaction.AddToBackStack(null); transaction.Commit(); this.FragmentManager.ExecutePendingTransactions(); if (!string.IsNullOrWhiteSpace(fragmentName)) SetAppBarTitle(fragmentName); if (showNavigationIndicator) _navDrawerToggle.DrawerIndicatorEnabled = true; else _navDrawerToggle.DrawerIndicatorEnabled = false; }
片段交易.替換導致應用程序中的白色（空白？）屏幕
慕田峪4524236
2022-08-20 14:49:57
