Filter with Invalid Date on ScreenRotation

[anlalalu]

Describe the bug
A clear and concise description of what the bug is.
error exists when operating in GaleeryFilterActivity

To Reproduce
Steps to reproduce the behavior:

1. tap 'more options'
2. tap 'Filter'
3. text in an invalid date
4. tap 'date_from_history' and there should be a box with some history data to select
5. rotate the screen

Expected behavior
A clear and concise description of what you expected to happen.

no error logs during operation

Smartphone (please complete the following information):

• Android version [e.g. Android-7.1] : 4.4.4
• A Photo Manager Version (i.e. 0.4.6.160304) : 4.4.4

Additional context
Add any other context about the problem here.

Crash Report
If you report an app crash: Can you add the crash logfile to this ticket?

When APhotoManager crashes it tries to write a crash log file in the Error Log Folder.

• [ExternalStorageDirectory]/copy/log/androFotofinder.logcat-2017....txt
  • i.e. /storage/sdcard0/copy/log/androFotofinder.logcat-20170728-135704.txt
    • crash data from 2017-07-28 13:57

For more details on Error Loging see diagnostic settings.

E/k3bFoto: GalF-'1334' is not a valid date.
java.lang.RuntimeException: '1334' is not a valid date.
at de.k3b.android.androFotoFinder.GalleryFilterActivity$FilterValue.convertDate(GalleryFilterActivity.java:730)
at de.k3b.android.androFotoFinder.GalleryFilterActivity$FilterValue.getDateMin(GalleryFilterActivity.java:618)
at de.k3b.io.GalleryFilterParameter.get(GalleryFilterParameter.java:66)
at de.k3b.io.GalleryFilterParameter.get(GalleryFilterParameter.java:36)
at de.k3b.android.androFotoFinder.GalleryFilterActivity.fromGui(GalleryFilterActivity.java:743)
at de.k3b.android.androFotoFinder.GalleryFilterActivity.onSaveInstanceState(GalleryFilterActivity.java:132)
at android.app.Activity.performSaveInstanceState(Activity.java:1153)
at android.app.Instrumentation.callActivityOnSaveInstanceState(Instrumentation.java:1223)
at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:3698)
at android.app.ActivityThread.access$900(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1202)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5001)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.text.ParseException: Unparseable date: "1334" (at offset 4)
at java.text.DateFormat.parse(DateFormat.java:555)
at de.k3b.android.androFotoFinder.GalleryFilterActivity$FilterValue.convertDate(GalleryFilterActivity.java:728)

E/WindowManager: android.view.WindowLeaked: Activity de.k3b.android.androFotoFinder.GalleryFilterActivity has leaked window android.widget.PopupWindow$PopupViewContainer{52a81e18 V.E..... ........ 0,0-424,226} that was originally added here
at android.view.ViewRootImpl.(ViewRootImpl.java:346)
at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:248)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
at android.widget.PopupWindow.invokePopup(PopupWindow.java:1019)
at android.widget.PopupWindow.showAsDropDown(PopupWindow.java:925)
at android.widget.ListPopupWindow.show(ListPopupWindow.java:625)
at com.android.internal.view.menu.MenuPopupHelper.tryShow(MenuPopupHelper.java:148)
at com.android.internal.view.menu.MenuPopupHelper.show(MenuPopupHelper.java:113)
at android.widget.PopupMenu.show(PopupMenu.java:167)
at de.k3b.android.widget.HistoryEditText$EditorHandler.showHistory(HistoryEditText.java:187)
at de.k3b.android.widget.HistoryEditText$EditorHandler.onClick(HistoryEditText.java:254)
at android.view.View.performClick(View.java:4438)
at android.view.View$PerformClick.run(View.java:18422)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5001)
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:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)

[k3b]

Not a bug

Gui shows short tooltip (i.e. "//// is not a valid date") as expected.

Changed logging from log-error to log-info