不能包裹地圖

我想從一個活動傳遞XMPPConnection對象到另一個。我寫了一個實現Parcelable並使用HashMap存儲對象的類。不能包裹地圖

這裏是我的代碼：

class MyParcelable implements Parcelable { 


    Map val=new HashMap<String, XMPPConnection>(); 

    public XMPPConnection getConnection(String s){ 
     return (XMPPConnection) val.get(s); 
    } 

    public void setConnection(String s,XMPPConnection conn){ 
     val.put(s, conn); 
    } 

    MyParcelable() { 

     val=new HashMap<String, XMPPConnection>(); 
    } 

    public MyParcelable(Parcel in) { 
     in.readMap(val, MyParcelable.class.getClassLoader()); 
    } 

    @Override 
    public int describeContents() { 
     return 0; 
    } 

    @Override 
    public void writeToParcel(Parcel outParcel, int flags) { 

     outParcel.writeMap(val); 
    } 

    public static final Parcelable.Creator<MyParcelable> CREATOR = new Parcelable.Creator<MyParcelable>() { 

     @Override 
     public MyParcelable createFromParcel(Parcel in) { 
      return new MyParcelable(in); 
     } 

     @Override 
     public MyParcelable[] newArray(int size) { 
      return new MyParcelable[size]; 
     } 
    }; 
}

在創建意圖，我這樣做：

MyParcelable pr=new MyParcelable(); 
     pr.setConnection("connectionobj", connection); 
     Intent i=new Intent(TestActivity2.this,TestActivity.class); 
     i.putExtra("connection", pr); 
     startActivity(i);

在拿多餘的，我這樣做：

Bundle b = getIntent().getExtras(); 
MyParcelable object = b.getParcelable("connection"); 
this.connection=object.getConnection("connectionobj");

但每次我從這個例外：

outParcel.writeMap(val);

例外：

06-04 16:04:23.443: E/AndroidRuntime(708): FATAL EXCEPTION: main 
06-04 16:04:23.443: E/AndroidRuntime(708): java.lang.RuntimeException: Parcel: unable to marshal value [email protected] 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.os.Parcel.writeValue(Parcel.java:1116) 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.os.Parcel.writeMapInternal(Parcel.java:479) 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.os.Parcel.writeMap(Parcel.java:463) 
06-04 16:04:23.443: E/AndroidRuntime(708): at com.demo.xmppchat.MyParcelable.writeToParcel(TestActivity2.java:1330) 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.os.Parcel.writeParcelable(Parcel.java:1135) 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.os.Parcel.writeValue(Parcel.java:1054) 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.os.Parcel.writeMapInternal(Parcel.java:479) 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.os.Bundle.writeToParcel(Bundle.java:1552) 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.os.Parcel.writeBundle(Parcel.java:493) 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.content.Intent.writeToParcel(Intent.java:5438) 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.app.ActivityManagerProxy.startActivity(ActivityManagerNative.java:1288) 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1373) 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.app.Activity.startActivityForResult(Activity.java:2817) 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.app.Activity.startActivity(Activity.java:2923) 
06-04 16:04:23.443: E/AndroidRuntime(708): at com.demo.xmppchat.TestActivity2.sendmessages(TestActivity2.java:955) 
06-04 16:04:23.443: E/AndroidRuntime(708): at com.demo.xmppchat.IQDepartmentProvider2$1.run(TestActivity2.java:1040) 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.os.Handler.handleCallback(Handler.java:587) 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.os.Handler.dispatchMessage(Handler.java:92) 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.os.Looper.loop(Looper.java:123) 
06-04 16:04:23.443: E/AndroidRuntime(708): at android.app.ActivityThread.main(ActivityThread.java:4627) 
06-04 16:04:23.443: E/AndroidRuntime(708): at java.lang.reflect.Method.invokeNative(Native Method) 
06-04 16:04:23.443: E/AndroidRuntime(708): at java.lang.reflect.Method.invoke(Method.java:521) 
06-04 16:04:23.443: E/AndroidRuntime(708): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 
06-04 16:04:23.443: E/AndroidRuntime(708): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 
06-04 16:04:23.443: E/AndroidRuntime(708): at dalvik.system.NativeStart.main(Native Method)

我做錯了什麼？任何輸入都會有幫助。提前致謝。

來源

2013-06-04 Abhishek

親愛的，第一行明確告知問題

06-04 16:04:23.443: E/AndroidRuntime(708): java.lang.RuntimeException: Parcel: unable to marshal value [email protected]

你XMPPConnection不是parcelable isntance。如果你班上的單個東西是不可分類的，那麼你將無法傳遞給另一個活動作爲可以parcelable或可序列化的實例

來源

2013-06-04 12:53:50

我的不好...我應該注意到它。感謝您指出:) – Abhishek

:)沒問題，你可以感謝排名我的答案：D –

不能包裹地圖

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