BadParcelable异常偶尔会导致应用程序崩溃

Question

我收到错误android.os.BadParcelableException: Parcelable protocol requires a Parcelable.Creator object called CREATOR，但它只发生偶尔和随机。我不知道为什么有时它会导致应用程序崩溃，而其他时间则不会。

在我的对象类中，我的writeToParcel方法是完全空的，我认为这可能与它有关。

@Override 
public void writeToParcel(Parcel dest, int flags) { 
    // TODO Auto-generated method stub 


} 

变量我穿过parcelable对象的类型是布尔值，字符串，整数，字符串数组列表，布尔数组，我提出另一个parcelable对象的ArrayList。

什么导致偶尔的崩溃任何想法？

完全logcat的下面

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.OptimusApps.stayhealthy/com.OptimusApps.stayhealthy.MainActivity}: android.os.BadParcelableException: Parcelable protocol requires a Parcelable.Creator object called CREATOR on class com.OptimusApps.stayhealthy.DatabaseHelper.Workout 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2596) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2653) 
at android.app.ActivityThread.access$800(ActivityThread.java:156) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1355) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:157) 
at android.app.ActivityThread.main(ActivityThread.java:5872) 
at java.lang.reflect.Method.invokeNative(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:515) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:674) 
at dalvik.system.NativeStart.main(Native Method) 
Caused by: android.os.BadParcelableException: Parcelable protocol requires a Parcelable.Creator object called CREATOR on class com.OptimusApps.stayhealthy.DatabaseHelper.Workout 
at android.os.Parcel.readParcelableCreator(Parcel.java:2165) 
at android.os.Parcel.readParcelable(Parcel.java:2106) 
at android.os.Parcel.readValue(Parcel.java:2022) 
at android.os.Parcel.readArrayMapInternal(Parcel.java:2323) 
at android.os.Bundle.unparcel(Bundle.java:249) 
at android.os.Bundle.getParcelable(Bundle.java:1206) 
at com.OptimusApps.stayhealthy.WorkoutPreview.initializeVariables(WorkoutPreview.java:175) 
at com.OptimusApps.stayhealthy.WorkoutPreview.onCreateView(WorkoutPreview.java:84) 
at android.support.v4.app.Fragment.performCreateView(Fragment.java:1500) 
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:927) 
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104) 
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1086) 
at android.support.v4.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManager.java:1884) 
at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:566) 
at com.OptimusApps.stayhealthy.MainActivity.onStart(MainActivity.java:295) 
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1239) 
at android.app.Activity.performStart(Activity.java:5322) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2569) 
... 11 more 

Answer 1

你缺少Parcelable.Creator。您必须在对象中添加创建者

public static final Parcelable.Creator<YourObject> CREATOR = new Creator<YourObject>() { 
    @Override 
    public YourObject[] newArray(int size) { 
     // TODO Auto-generated method stub 
     return new YourObject[size]; 
    } 

    @Override 
    public YourObject createFromParcel(Parcel source) { 
     // TODO Auto-generated method stub 
     return new YourObject(source); 
    } 
};