質問: com.example.user.viewpagertest.Product) at android.os.Parcel.writeSerializable(Parcel.java:1316) at android.os.Parcel.writeValue(Parcel.java:1264) (略) Caused by: java.io.NotSerializableException: com.example.user.viewpagertest.ProductDetail at java.io.ObjectOutputStream.writeNewObject(ObjectOutputStream.java:1364) at java.io.ObjectOutputStream.writeObjectInternal(ObjectOutputStream.java:1671) (略) at dalvik.system.NativeStart.main(Native Method) 08-02 00:35:57.644 1595-1716/system_process W/ActivityManager: Force finishing activity com.example.user.viewpagertest/.OrderActivity 08-02 00:35:58.154 1595-1610/system_process W/ActivityManager: Activity pause timeout for ActivityRecord{9d293160 u0 com.example.user.viewpagertest/.OrderActivity t9 f} 08-02 00:36:07.594 1595-1610/system_process W/ActivityManager: Activity stop timeout for ActivityRecord{9d1c56b8 u0 com.example.user.viewpagertest/.ProductsActivity t9} 08-02 00:36:07.594 1595-1610/system_process I/ActivityManager: Activity reported stop, but no longer stopping: ActivityRecord{9d1c56b8 u0 com.example.user.viewpagertest/.ProductsActivity t9} 08-02 00:36:07.654 1595-1610/system_process W/ActivityManager: Launch timeout has expired, giving up wake lock! 08-02 00:37:08.284 1595-1616/system_process W/BatteryStatsImpl: Couldn't get kernel wake lock stats
回答: ProductDetailに適切にシリアライズ実装がなされていないようです。