Preventing/catching “IllegalArgumentException: parameter must be a descendant of this view” error

problem ：

I have a ListView with some focusable components inside (mostly EditText s). I have one ListView There are some components that can be focused （ Mainly EditText s）.Yeah, I know this isn't exactly recommended, but in general, almost everything is working fine and the focus goes where it has to go (with a few tweaks I had to code). Yes , I know this is not completely recommended , But on the whole , Almost everything is normal , And focus on where it has to go （ I have to code some adjustments ）.Anyway, my problem is that there's a weird race condition when scrolling the list with your finger and then suddenly using the trackball when the IME keyboard is being displayed . in any case , My problem is when I scroll through the list with my finger and Showing IME Keyboard time Suddenly use the trackball when There will be strange competitive conditions .Something must go out of bounds and get recycled at which point the offsetRectBetweenParentAndChild() method must kick in and throw the IllegalArgumentException . Something has to cross the border and be recycled , here offsetRectBetweenParentAndChild() Method must be started and thrown IllegalArgumentException .

The problem is that this exception is thrown outside of any block in which I can insert a try/catch (as far as I know). The problem is that this exception is when I can insert try/catch Thrown outside any block of （ as far as I am concerned ）.So there are two valid solutions to this question, either: So there are two effective solutions to this problem , or ：

1. Someone knows why this exception being thrown and how to stop it from happening Someone knows Why? Throw this exception and how to prevent it from happening
2. Someone knows how to put a try/catch block somewhere that will at least let my application survive. Someone knows how to try/catch The block is placed where my application can at least survive .As far as I know the problem is that of focus, so it definitely shouldn't kill my application (which is what it's doing). as far as I am concerned , The problem is the focus , So it should never kill my application （ This is what it is doing ）.I tried overriding the ViewGroup 's methods but those two offset* methods are marked as final. I try to overwrite ViewGroup Methods , But these two offset* Method is marked as final.

Stack trace: stack trace ：

08-17 18:23:09.825: ERROR/AndroidRuntime(1608): FATAL EXCEPTION: main08-17 18:23:09.825: ERROR/AndroidRuntime(1608): java.lang.IllegalArgumentException: parameter must be a descendant of this view08-17 18:23:09.825: ERROR/AndroidRuntime(1608):     at android.view.ViewGroup.offsetRectBetweenParentAndChild(ViewGroup.java:2633)08-17 18:23:09.825: ERROR/AndroidRuntime(1608):     at android.view.ViewGroup.offsetDescendantRectToMyCoords(ViewGroup.java:2570)08-17 18:23:09.825: ERROR/AndroidRuntime(1608):     at android.view.ViewRoot.scrollToRectOrFocus(ViewRoot.java:1624)08-17 18:23:09.825: ERROR/AndroidRuntime(1608):     at android.view.ViewRoot.draw(ViewRoot.java:1357)08-17 18:23:09.825: ERROR/AndroidRuntime(1608):     at android.view.ViewRoot.performTraversals(ViewRoot.java:1258)08-17 18:23:09.825: ERROR/AndroidRuntime(1608):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1859)08-17 18:23:09.825: ERROR/AndroidRuntime(1608):     at android.os.Handler.dispatchMessage(Handler.java:99)08-17 18:23:09.825: ERROR/AndroidRuntime(1608):     at android.os.Looper.loop(Looper.java:130)08-17 18:23:09.825: ERROR/AndroidRuntime(1608):     at android.app.ActivityThread.main(ActivityThread.java:3683)08-17 18:23:09.825: ERROR/AndroidRuntime(1608):     at java.lang.reflect.Method.invokeNative(Native Method)08-17 18:23:09.825: ERROR/AndroidRuntime(1608):     at java.lang.reflect.Method.invoke(Method.java:507)08-17 18:23:09.825: ERROR/AndroidRuntime(1608):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)08-17 18:23:09.825: ERROR/AndroidRuntime(1608):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)08-17 18:23:09.825: ERROR/AndroidRuntime(1608):     at dalvik.system.NativeStart.main(Native Method)

---

Solution ：

Reference resources ： https://stackoom.com/en/question/TnB5