Interface Builder 中的导航栏后退按钮问题
我不确定我的导航控制器发生了什么。我有一个带有选项卡栏控制器和 3 个导航控制器的窗口，它们在设置的视图之间切换时工作正常。
然而，一个视图控制器在视图中有一个按钮，可以将另一个视图控制器推到导航控制器上，只有后退按钮不会出现。我制作了一个屏幕，它将自身的副本弹出到视图堆栈中，当堆栈上有 3 个或更多视图时，后退按钮就会显示，直到再次到达第二个视图，然后它就会消失。以前有人遇到过这个问题吗？
I'm not sure what's happening with my Navigation Controller. I have a window with a Tab Bar Controller and 3 Navigation Controllers, they work fine when switching between the views they're set to.
However one View Controller has a Button in the View that pushes another View Controller onto the Navigation Controller, only the back button doesn't come up. I've made a screen that pops a copy of itself to the View Stack and when there are 3 or more Views on the stack, the back button shows up, until it gets to that second view again, and it disappears. Has anyone run into this problem before?
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