Android 自定义可序列化对象的数组列表出现意图错误
我试图将自定义对象的arraylist从一个活动传递到另一个活动。arrayList包含非常简单的对象。下面是课堂:Android 自定义可序列化对象的数组列表出现意图错误,android,android-intent,arraylist,serializable,Android,Android Intent,Arraylist,Serializable,我试图将自定义对象的arraylist从一个活动传递到另一个活动。arrayList包含非常简单的对象。下面是课堂: public class MaPin implements Serializable{ private Location pLocation; private String pMessage; public MaPin(Location location, String message){ this.pLocation = locatio
public class MaPin implements Serializable{
private Location pLocation;
private String pMessage;
public MaPin(Location location, String message){
this.pLocation = location;
this.pMessage = message;
}
public Location getpLocation() {return this.pLocation; }
public String getpMessage(){ return this.pMessage; }
}
如您所见,它实现了可序列化。然后根据这篇文章:,使用数据包装器是很方便的。所以我用了一个:
public class DataWrapper implements Serializable {
private ArrayList<MaPin> mMapArr;
public DataWrapper(ArrayList<MaPin> data) { this.mMapArr = data; }
public ArrayList<MaPin> getmMapArr() { return this.mMapArr; }
}
其中,mMapinHistory
是`MaPin的ArrayList
。
为了接收,我在目的地活动中使用:
Intent intent = new Intent(MainActivity.this, HistoryActivity.class);
intent.putExtra(EXTRA_MESSAGE, new DataWrapper(mMapinHistory));
startActivity(intent);
Intent intent = getIntent();
DataWrapper wp = (DataWrapper) getIntent().getSerializableExtra(MainActivity.EXTRA_MESSAGE);
mPositionHistory = wp.getmMapArr();
正如你所看到的,我认为我尊重帖子中提到的内容。但是,我仍然有以下错误:
java.lang.RuntimeException: Parcelable encountered IOException writing serializable object (name = ovh.trimard.locapp.DataWrapper)
我不知道为什么,因为DataWrapper和MaPin都实现了可序列化
我做错了什么
编辑
按要求完成Stacktrace:
05-12 15:11:32.370 2531-2531/ovh.trimard.locapp E/AndroidRuntime: FATAL EXCEPTION: main
Process: ovh.trimard.locapp, PID: 2531
java.lang.RuntimeException: Parcelable encountered IOException writing serializable object (name = ovh.trimard.locapp.DataWrapper)
at android.os.Parcel.writeSerializable(Parcel.java:1527)
at android.os.Parcel.writeValue(Parcel.java:1475)
at android.os.Parcel.writeArrayMapInternal(Parcel.java:724)
at android.os.BaseBundle.writeToParcelInner(BaseBundle.java:1408)
at android.os.Bundle.writeToParcel(Bundle.java:1157)
at android.os.Parcel.writeBundle(Parcel.java:764)
at android.content.Intent.writeToParcel(Intent.java:8687)
at android.app.ActivityManagerProxy.startActivity(ActivityManagerNative.java:3082)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1518)
at android.app.Activity.startActivityForResult(Activity.java:4225)
at android.support.v4.app.BaseFragmentActivityJB.startActivityForResult(BaseFragmentActivityJB.java:50)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:79)
at android.app.Activity.startActivityForResult(Activity.java:4183)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:859)
at android.app.Activity.startActivity(Activity.java:4522)
at android.app.Activity.startActivity(Activity.java:4490)
at ovh.trimard.locapp.MainActivity$3.onClick(MainActivity.java:152)
at android.view.View.performClick(View.java:5637)
at android.view.View$PerformClick.run(View.java:22429)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6119)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
Caused by: java.io.NotSerializableException: android.location.Location
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1224)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1584)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1549)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1472)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1218)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:346)
at java.util.ArrayList.writeObject(ArrayList.java:734)
at java.lang.reflect.Method.invoke(Native Method)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:977)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1536)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1472)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1218)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1584)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1549)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1472)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1218)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:346)
at android.os.Parcel.writeSerializable(Parcel.java:1522)
at android.os.Parcel.writeValue(Parcel.java:1475)
at android.os.Parcel.writeArrayMapInternal(Parcel.java:724)
at android.os.BaseBundle.writeToParcelInner(BaseBundle.java:1408)
at android.os.Bundle.writeToParcel(Bundle.java:1157)
at android.os.Parcel.writeBundle(Parcel.java:764)
at android.content.Intent.writeToParcel(Intent.java:8687)
at android.app.ActivityManagerProxy.startActivity(ActivityManagerNative.java:3082)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1518)
at android.app.Activity.startActivityForResult(Activity.java:4225)
at android.support.v4.app.BaseFragmentActivityJB.startActivityForResult(BaseFragmentActivityJB.java:50)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:79)
at android.app.Activity.startActivityForResult(Activity.java:4183)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:859)
at android.app.Activity.startActivity(Activity.java:4522)
at android.app.Activity.startActivity(Activity.java:4490)
at ovh.trimard.locapp.MainActivity$3.onClick(MainActivity.java:152)
at android.view.View.performClick(View.java:5637)
at android.view.View$PerformClick.run(View.java:22429)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6119)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
Location类未实现可序列化
原因:java.io.NotSerializableException:android.location.location
为了正确地打包数据,所有内部类都应该实现parcelable/SerializableLocation类没有实现Serializable
原因:java.io.NotSerializableException:android.location.location
为了正确地打包数据,所有内部类都应该实现parcelable/serialisable请编辑您的问题并发布整个Java堆栈跟踪,而不仅仅是错误消息。Location类实现serialisable?我不知道Location,是defautl类,我没有修改它。(事实上,我对Java和Android还很陌生)。您认为Location应该是可序列化的吗?请编辑您的问题并发布整个Java堆栈跟踪,而不仅仅是错误消息。Location类实现了可序列化?我不知道Location,是defautl类,我没有修改它。(事实上,我对Java和Android还很陌生)。你认为位置应该是可序列化的吗?谢谢你的回答,显然位置是不可序列化的,我想我必须找到一种解决方法。如果位置是谷歌地图位置,你可以简单地提取lat/long并分配给你的自定义字段标记,这就是我要做的!再次感谢您的支持!很高兴为您提供帮助:)谢谢您的回答,显然位置是不可序列化的,我想我必须找到一种解决方法。如果位置是谷歌地图位置,您只需提取lat/long并分配给您的自定义字段标记,这就是我要做的!再次感谢您的支持!很乐意帮忙:)