从flutter页面退回到原生页面崩溃,手机型号华为荣耀20，android 版本9

[RootKatherine]

2019-08-31 14:13:34.507 29446-30040E/SurfaceView: surfacePositionLost_uiRtSync mSurfaceControl = null
2019-08-31 14:13:34.509 29446-29446/ E/flutter: [ERROR:flutter/shell/platform/android/platform_view_android_jni.cc(40)] java.lang.NullPointerException: Attempt to invoke interface method 'boolean android.view.ViewParent.requestSendAccessibilityEvent(android.view.View, android.view.accessibility.AccessibilityEvent)' on a null object reference
at io.flutter.view.AccessibilityBridge.sendAccessibilityEvent(AccessibilityBridge.java:1461)
at io.flutter.view.AccessibilityBridge.createAndSendWindowChangeEvent(AccessibilityBridge.java:1478)
at io.flutter.view.AccessibilityBridge.updateSemantics(AccessibilityBridge.java:1268)
at io.flutter.view.AccessibilityBridge$1.updateSemantics(AccessibilityBridge.java:269)
at io.flutter.embedding.engine.FlutterJNI.updateSemantics(FlutterJNI.java:439)
at android.os.MessageQueue.nativePollOnce(Native Method)
at android.os.MessageQueue.next(MessageQueue.java:386)
at android.os.Looper.loop(Looper.java:175)
at android.app.ActivityThread.main(ActivityThread.java:7625)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:524)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:987)
2019-08-31 14:13:34.510 29446-29446/ A/flutter: [FATAL:flutter/shell/platform/android/platform_view_android_jni.cc(96)] Check failed: CheckException(env).
2019-08-31 14:13:34.512 2408-7673/? E/HsmCoreServiceImpl: onTransact in code is: 103
2019-08-31 14:13:34.637 1465-1871/? E/WindowManager: win=Window{b9d4b48 u0 GestureNavAnim} destroySurfaces: appStopped=true win.mWindowRemovalAllowed=false win.mRemoveOnExit=false
2019-08-31 14:13:34.826 29446-30331/ E/Ingkee:a: [, , 0]:CrashType : 2
2019-08-31 14:13:34.826 29446-30331/ E/Ingkee:a: [, , 0]:ErrorType : SIGABRT
2019-08-31 14:13:34.826 29446-30331/ E/Ingkee:a: [, , 0]:ErrorMessage :
2019-08-31 14:13:34.826 29446-30331/ E/Ingkee:a: [, , 0]:ErrorStack : #00 pc 0001d796 /system/lib/libc.so (abort+57) [armeabi-v7a::f76ceabc8d849a203baefd7b78a981d0]
#1 pc 001374df /data/ap-uAg21UU4vQHZ5_DjRf7LLw==/lib/arm/libflutter.so [armeabi-v7a::bb45fd19f169eb5441970181b0b00b84]
#2 pc 0012ccbb /data/app/-uAg21UU4vQHZ5_DjRf7LLw==/lib/arm/libflutter.so [armeabi-v7a::bb45fd19f169eb5441970181b0b00b84]
#3 pc 0015ec51 /data/app-uAg21UU4vQHZ5_DjRf7LLw==/lib/arm/libflutter.so [armeabi-v7a::bb45fd19f169eb5441970181b0b00b84]
#4 pc 00137b09 /data/app-uAg21UU4vQHZ5_DjRf7LLw==/lib/arm/libflutter.so [armeabi-v7a::bb45fd19f169eb5441970181b0b00b84]
#5 pc 0013a401 /data/app/-uAg21UU4vQHZ5_DjRf7LLw==/lib/arm/libflutter.so [armeabi-v7a::bb45fd19f169eb5441970181b0b00b84]
#6 pc 0000f3b7 /system/lib/libutils.so (_ZN7android6Looper9pollInnerEi+726) [armeabi-v7a::b85a212d01259cb4100ed3309e39b921]
#7 pc 0000f05f /system/lib/libutils.so (_ZN7android6Looper8pollOnceEiPiS1_PPv+26) [armeabi-v7a::b85a212d01259cb4100ed3309e39b921]
#8 pc 000aea79 /system/lib/libandroid_runtime.so [armeabi-v7a::b8059c37da3d21b0248d4c0f149190cb]
#9 pc 003fc45d /system/framework/arm/boot-framework.oat [armeabi::64e762ce2b84cfd626794b8923b7f308]
java:
android.os.MessageQueue.next(MessageQueue.java:386)
android.os.Looper.loop(Looper.java:175)
android.app.ActivityThread.main(ActivityThread.java:7625)
java.lang.reflect.Method.invoke(Native Method)
com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:524)
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:987)

[zjuwjf]

能提供你使用的flutter-sdk版本和flutter-boost的版本么？
如果可以，请提供下最小化的demo。

[RootKatherine]

flutter boost demo就会，
flutter sdk : 1.7.8.4，
flutter-boost 0.4.20

[zjuwjf]

flutter 1.7 我们目前还未支持， 请使用flutter 1.5的stable 版本