Parcelling ArrayList of Integers Android

Question

Ich habe eine benutzerdefinierte Klasse, die ich an eine andere Aktivität übergeben möchte, und ich habe gelesen, dass eine gute Möglichkeit, dies zu tun, Parcelable Schnittstelle verwenden.

public class MatchData implements Parcelable{ 

    private long mId; 
    private int kills, assists, deaths, creeps, ssp1, ssp2, playerRole; 
    private String type; 
    private String champion; 
    private ArrayList<Integer> items; 
    private boolean won; 

    MatchData(long m, int k, int d, int a, String id, int cr, int s1, int s2, int pr, String t, ArrayList<Integer> it, boolean w) { 
     mId = m; 
     kills = k; 
     assists = a; 
     deaths = d; 
     champion = id; 
     creeps = cr; 
     ssp1 = s1; 
     ssp2 = s2; 
     playerRole = pr; 
     type = t; 
     items = it; 
     won = w; 
    } 

    MatchData(Parcel in) { 
     mId = in.readInt(); 
     kills = in.readInt(); 
     deaths = in.readInt(); 
     assists = in.readInt(); 
     champion = in.readString(); 
     creeps = in.readInt(); 
     ssp1 = in.readInt(); 
     ssp2 = in.readInt(); 
     playerRole = in.readInt(); 
     type = in.readString(); 
     items = new ArrayList<>(); 
     in.readList(items, null); // right here 
     won = Boolean.valueOf(in.readString()); 
    } 

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

    @Override 
    public void writeToParcel(Parcel out, int flags) { 
     out.writeLong(this.getmId()); 
     out.writeInt(this.getKills()); 
     out.writeInt(this.getDeaths()); 
     out.writeInt(this.getAssists()); 
     out.writeString(this.getChampion()); 
     out.writeInt(this.getCreeps()); 
     out.writeInt(this.getSsp1()); 
     out.writeInt(this.getSsp2()); 
     out.writeInt(this.getPlayerRole()); 
     out.writeString(this.getType()); 
     out.writeList(this.getItems()); 
     out.writeString(String.valueOf(this.isWon())); 
    } 

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

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

} 

Ich habe die Getters und Setter nicht kopiert, aber sie sind da. Das Problem, dem ich gegenüberstehe, kommt, wenn ich versuche, die Arraylist von ganzen Zahlen aus dem Paket zu lesen (ich habe die Zeile kommentiert).

Edit: ersetzt ich in dieser Zeile null mit Integer.class.getClassLoader() und das ist die neue stacktrace

06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime: FATAL EXCEPTION: main 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime: Process: com.nicu.bogdan.lolstats, PID: 2429 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.nicu.bogdan.lolstats/com.nicu.bogdan.playerInfo.MatchActivity}: java.lang.RuntimeException: Parcel android.os.Parcel@24a39bfa: Unmarshalling unknown type code 4915278 at offset 168 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2325) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.app.ActivityThread.access$800(ActivityThread.java:151) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.os.Handler.dispatchMessage(Handler.java:102) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.os.Looper.loop(Looper.java:135) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.app.ActivityThread.main(ActivityThread.java:5254) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at java.lang.reflect.Method.invoke(Native Method) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at java.lang.reflect.Method.invoke(Method.java:372) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime: Caused by: java.lang.RuntimeException: Parcel android.os.Parcel@24a39bfa: Unmarshalling unknown type code 4915278 at offset 168 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.os.Parcel.readValue(Parcel.java:2228) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.os.Parcel.readListInternal(Parcel.java:2526) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.os.Parcel.readList(Parcel.java:1661) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at com.nicu.bogdan.jsonParser.MatchData.<init>(MatchData.java:140) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at com.nicu.bogdan.jsonParser.MatchData$1.createFromParcel(MatchData.java:167) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at com.nicu.bogdan.jsonParser.MatchData$1.createFromParcel(MatchData.java:165) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.os.Parcel.readParcelable(Parcel.java:2252) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.os.Parcel.readValue(Parcel.java:2152) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.os.Parcel.readArrayMapInternal(Parcel.java:2485) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.os.BaseBundle.unparcel(BaseBundle.java:221) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.os.Bundle.getParcelable(Bundle.java:755) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.content.Intent.getParcelableExtra(Intent.java:5088) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at com.nicu.bogdan.playerInfo.MatchActivity.onCreate(MatchActivity.java:43) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.app.Activity.performCreate(Activity.java:5990) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278) 
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)  
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.app.ActivityThread.access$800(ActivityThread.java:151)  
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)  
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.os.Handler.dispatchMessage(Handler.java:102)  
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.os.Looper.loop(Looper.java:135)  
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at android.app.ActivityThread.main(ActivityThread.java:5254)  
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at java.lang.reflect.Method.invoke(Native Method)  
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at java.lang.reflect.Method.invoke(Method.java:372)  
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)  
06-23 13:26:35.479 2429-2429/com.nicu.bogdan.lolstats E/AndroidRuntime:  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)  

Answer 1

Integer nicht standardmäßig parcel ist. Versuchen Sie folgendes:

in.readList(ids, Integer.class.getClassLoader());