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android - 在 Parcelable 类中使用 Parcelable 属性的问题

问题描述

我正在尝试实现一个“调查”类型的应用程序，该应用程序需要在活动之间传递数据，以便最终可以将其写入 Excel 文档，因此我需要将具有不同数据类型的实例化类传递给新活动，以便我可以收集更多数据。但是，我正在使用 @Parcelize 并认为它会导致隐藏的样板代码在包裹之间来回弹跳的问题。我希望在不删除 @Parcelize 的情况下有一个解决方案，因为我是 Kotlin 和应用程序开发的新手，但如果没有，那也没关系。

这是长的无限循环错误：

E/AndroidRuntime: FATAL EXCEPTION: main
              Process: com.raymondllc.testapp, PID: 5396
              java.lang.IllegalStateException: Could not execute method for android:onClick
                  at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:389)
                  at android.view.View.performClick(View.java:6294)
                  at android.view.View$PerformClick.run(View.java:24770)
                  at android.os.Handler.handleCallback(Handler.java:790)
                  at android.os.Handler.dispatchMessage(Handler.java:99)
                  at android.os.Looper.loop(Looper.java:164)
                  at android.app.ActivityThread.main(ActivityThread.java:6494)
                  at java.lang.reflect.Method.invoke(Native Method)
                  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
               Caused by: java.lang.reflect.InvocationTargetException
                  at java.lang.reflect.Method.invoke(Native Method)
                  at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:384)
                  at android.view.View.performClick(View.java:6294) 
                  at android.view.View$PerformClick.run(View.java:24770) 
                  at android.os.Handler.handleCallback(Handler.java:790) 
                  at android.os.Handler.dispatchMessage(Handler.java:99) 
                  at android.os.Looper.loop(Looper.java:164) 
                  at android.app.ActivityThread.main(ActivityThread.java:6494) 
                  at java.lang.reflect.Method.invoke(Native Method) 
                  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438) 
                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807) 
               Caused by: java.lang.StackOverflowError: stack size 8MB
                  at android.os.Parcel$ReadWriteHelper.writeString(Parcel.java:353)
                  at android.os.Parcel.writeString(Parcel.java:675)
                  at android.os.Parcel.writeParcelableCreator(Parcel.java:1797)
                  at android.os.Parcel.writeParcelable(Parcel.java:1790)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
E/AndroidRuntime:     at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
I/zygote: Do partial code cache collection, code=59KB, data=48KB
I/zygote: After code cache collection, code=59KB, data=48KB
      Increasing code cache capacity to 256KB
I/zygote: Background concurrent copying GC freed 3584(1418KB) AllocSpace objects, 2(1572KB) LOS objects, 17% free, 28MB/34MB, paused 720us total 341.766ms
I/zygote: Background concurrent copying GC freed 184569(14MB) AllocSpace objects, 0(0B) LOS objects, 15% free, 31MB/37MB, paused 671us total 213.138ms
I/chatty: uid=10080(com.raymondllc.testapp) identical 3054 lines
E/AndroidRuntime:     at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
E/AndroidRuntime:     at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Facility.writeToParcel(Unknown Source:47)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at com.raymondllc.testapp.Building.writeToParcel(Unknown Source:55)
                  at android.os.Parcel.writeParcelable(Parcel.java:1791)
                  at android.os.Parcel.writeValue(Parcel.java:1697)
                  at android.os.Parcel.writeArrayMapInternal(Parcel.java:838)
                  at android.os.BaseBundle.writeToParcelInner(BaseBundle.java:1542)
                  at android.os.Bundle.writeToParcel(Bundle.java:1232)
                  at android.os.Parcel.writeBundle(Parcel.java:878)
                  at android.content.Intent.writeToParcel(Intent.java:9599)
                  at android.app.IActivityManager$Stub$Proxy.startActivity(IActivityManager.java:4327)
                  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1611)
                  at android.app.Activity.startActivityForResult(Activity.java:4487)
                  at android.support.v4.app.BaseFragmentActivityApi16.startActivityForResult(BaseFragmentActivityApi16.java:54)
                  at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:68)
                  at android.app.Activity.startActivityForResult(Activity.java:4445)
                  at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:751)
                  at android.app.Activity.startActivity(Activity.java:4806)
                  at android.app.Activity.startActivity(Activity.java:4774)
                  at com.raymondllc.testapp.MainActivity.nextButton(MainActivity.kt:25)
                    ... 11 more

我认为它在“未知来源”中的读/写之间来回弹跳，当我在 Android Studio 中单击时，它会在我编写的两个不同类之间弹跳。以下是类的定义：

@Parcelize
class Facility(private var facID : String,
               private var buildings: Array<Building>) : Parcelable {
    ...


@Parcelize
class Building(private var bldgID: String = "",
               private var sections : Array<Section> = emptyArray(),
               private var facility: Facility? = null) : Parcelable {
    ...

非常感谢任何帮助/建议！

编辑 1： 我已经删除了类前面的 @Parcelize 并允许 Android Studio 自动生成样板代码，现在我可以看到问题但不知道如何解决它。writeToParcelBuilding 类中的函数调用，writeParcelable(facility, flags)它调用writeToParcelFacility 类中的函数，它调用writeTypedArray(building, flags)，它调用writeToParcel给定设施中的每个建筑物，依次重复列出的过程直到停止。想法？

标签： androidkotlin

解决方案

您将需要打破循环依赖。一种方法是仅存储设施或建筑物的 ID，而不是存储整个对象。您可以编写一个单独的类来存储对象的精简版本，然后使用 Id 重建原始对象。

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