Android - 从另一个活动启动一个活动时可以强制调用 View.onSizeChanged
我有一个基本上只是闪屏的活动。此活动中的按钮启动一个新活动，其中有一个视图，该视图依赖于 View.onSizeChanged 回调来设置关键资源（它需要大小值来设置图块网格）。
我第一次运行该应用程序时，一切正常。 onSizeChanged 回调在创建视图后的某个时刻被调用，并且图块网格被正确设置。如果我然后点击后退按钮（这会让我返回到启动屏幕活动并清理/销毁其他活动），一切仍然没问题。从启动屏幕（无需完全退出应用程序），如果我再次单击开始按钮，当尝试设置第一个图块时，我会收到空指针异常（因为网格为空，因为 View .onSizeChanged 未调用）。
有没有一种方法，或者甚至是否适合，在每次启动第二个活动时强制保证调用 View.onSizeChanged ，从而创建需要它的视图？
如果不发布代码，这是否足够有意义？
I have an activity that is basically just a splash screen. A button in this activity starts a new activity which has a view in it that depends on the View.onSizeChanged callback to setup critical resources, (it needs the size values to set up a grid of tiles).
The first time i run the app, everything works fine. The onSizeChanged callback is called at some point after the view is created, and the tile grid gets set up correctly. If I then hit the back button, (which takes me back to the splash screen activity and cleans up/destroys the other activity), things are still ok. From the splash screen, (without exiting the app altogether), if I then click the start button again, I get a null pointer exception when the first tile is trying to be set, (because the grid is null, because View.onSizeChanged was not called).
Is there a way to, or is it even appropriate to, force a guaranteed call to View.onSizeChanged every time the second activity is started, and hence the view needing it is created?
Does this make enough sense without posting the code?
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