Issue with DatePickerDialog

Hi, I'm trying to use this Unity's example. I would like to use the DatePickerDialog in my project.

I've created an empty GameObject and attached the above script to it. But, when I run it I get:

Code (plain):

1. java.lang.NoSuchFieldError: no "Ljava/lang/Class;" field "currentActivity" in class "Lcom/unity3d/player/UnityPlayer;" or its superclasses
2. com.unity3d.player.UnityPlayer.nativeRender(Native Method)
3. com.unity3d.player.UnityPlayer.c(Unknown Source:0)
4. com.unity3d.player.UnityPlayer$e$2.queueIdle(Unknown Source:72)
5. android.os.MessageQueue.next(MessageQueue.java:479)
6. android.os.Looper.loop(Looper.java:144)
7. com.unity3d.player.UnityPlayer$e.run(Unknown Source:33)
8. UnityEngine.AndroidJNISafe.CheckException () (at /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJNISafe.cs:25)
9. UnityEngine.AndroidJNISafe.GetStaticFieldID (IntPtr clazz, System.String name, System.String sig) (at /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJNISafe.cs:78)
10. UnityEngine._AndroidJNIHelper.GetFieldID (IntPtr jclass, System.String fieldName, System.String signature, Boolean isStatic) (at /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJavaImpl.cs:1182)
11. UnityEngine.AndroidJNIHelper.GetFieldID (IntPtr javaClass, System.String fieldName, System.String signature, Boolean isStatic) (at /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJNI.bindings.cs:83)
12. UnityEngine._AndroidJNIHelper.GetFieldID[AndroidJavaClass] (IntPtr jclass, System.String fieldName, Boolean isStatic) (at /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJavaImpl.cs:1110)
13. UnityEngine.AndroidJNIHelper.GetFieldID[AndroidJavaClass] (IntPtr jclass, System.String fieldName, Boolean isStatic) (at /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJNI.bindings.cs:165)
14. UnityEngine.AndroidJavaObject._GetStatic[AndroidJavaClass] (System.String fieldName) (at /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJavaImpl.cs:480)
15. UnityEngine.AndroidJavaObject.GetStatic[AndroidJavaClass] (System.String fieldName) (at /Users/builduser/buildslave/unity/build/Runtime/Export/AndroidJava.bindings.cs:57)
16. ExampleClass.OnGUI () (at C:/Path/To/ExampleClass.cs:16)
17. AndroidJavaException: java.lang.NoSuchFieldError: no "Ljava/lang/Class;" field "currentActivity" in class "Lcom/unity3d/player/UnityPlayer;" or its superclasses

and obviously it doesn't work. What am I missing? Thank you!

 

I had this issue myself when trying to figure this out. Replace `AndroidJavaClass` with `
AndroidJavaObject`. Here's the code that's worked for me:
```
var player = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
var activity = player.GetStatic<AndroidJavaObject>("currentActivity");
```

 

how ?