Android | 在捆绑包中使用Parcelable数据时解组未知类型

Question

我在使用Android.Bundle通过两个活动发送的ArrayList中遇到Parcelable Data问题

我有两个活动(A和B).

在Aaaa.class中:

ArrayList<Model> mModelList = new ArrayList<Model>
//Fill ArrayList with a few Model-Objects

Bundle mBundle = new Bundle;
Intent mIntent = new Intent(Aaaa.this, Bbbb.class);

mBundle.putParcelableArrayList("models", mModelList);
mIntent.putExtras(mBundle);

startActivity(mIntent);

在Bbbb.class中:

Bundle mBundle = getIntent().getExtras();
ArrayList<Model> = mBundle.getParcelableArrayList("models");

Model.class正在实现Parcelable.

所以,问题是.当我填充ArrayList(在Aaaa.class中)并将其放入Bundle时,我可以看到Bundle包含List中的varios对象.当我尝试在Bbbb.class中填充List时,抛出异常.

 ERROR/AndroidRuntime(11109): FATAL EXCEPTION: main
    java.lang.RuntimeException: Unable to start activity ComponentInfo{test/test.activities.Bbbb}: java.lang.RuntimeException: Parcel android.os.Parcel@405585d0: Unmarshalling unknown type code 7667810 at offset 144
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
    at android.app.ActivityThread.access$1500(ActivityThread.java:117)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:123)
    at android.app.ActivityThread.main(ActivityThread.java:3687)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:507)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
    at dalvik.system.NativeStart.main(Native Method)
    Caused by: java.lang.RuntimeException: Parcel android.os.Parcel@405585d0: Unmarshalling unknown type code 7667810 at offset 144
    at android.os.Parcel.readValue(Parcel.java:1913)
    at android.os.Parcel.readListInternal(Parcel.java:2092)
    at android.os.Parcel.readArrayList(Parcel.java:1536)
    at android.os.Parcel.readValue(Parcel.java:1867)
    at android.os.Parcel.readMapInternal(Parcel.java:2083)
    at android.os.Bundle.unparcel(Bundle.java:208)
    at android.os.Bundle.getParcelableArrayList(Bundle.java:1144)
    at test.activities.Bbbb.onCreate(Bbbb.java:52)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615)
    ... 11 more

Line52是

ArrayList<Model> = mBundle.getParcelableArrayList("models");

我绝对没有想法这里的问题在哪里,Model.class与其他Bundle - Intents一起工作正常.

更新:

模型类如下.

public class Model implements Parceleble{

  private String name;
  private String address;

  public Model(Parcel parcel){
  }
  public Model(){
  }
  public Model(String name, String address){
    this.name = name;
    this.address = address;
  }

  //Getter and Setter

  //equals, HashCode, toString (autoGenerated from Idea)

  @Override
  public void writeToParcel(Parcel parcel, int i){
    parcel.writeString(name);
    parcel.writeString(address);
  }

  public void readFromParcel(Parcel parcel){
    this.name = parcel.readString();
    this.address = parcel.readString();
  }

  public static Parcelable.Creator<Model> CREATOR = new Parcelable.Creator<Model>(){
  @Override
  public Model createFromParcel(Parcel parcel){
    return new Model(parcel);
  }

  @Override
  public Model[] new Array(int size){
    return new Model[size]
  }
};
}

Answer 1

您的Parceleble实现对我来说看起来不太正确,请查看API中的示例代码,以查看需要覆盖的所需方法/构造函数:

... ...

// ==================== Parcelable ====================
public int describeContents() {
  return 0;
}

public void writeToParcel(Parcel parcel, int flags) {
  parcel.writeString(name);
  parcel.writeString(address);
}

private Model(Parcel in) {
  name = in.readString();
  address = in.readString();
}

public static final Parcelable.Creator<Model> CREATOR = new Parcelable.Creator<Model>() {
  public Model createFromParcel(Parcel in) {
    return new Model(in);
  }

  public Model[] newArray(int size) {
    return new Model[size];
  }
};

... ...

尝试此代码,看看它是否有帮助.