NullPointException 오류 해석좀 부탁드려요..

Question

오류 좀 봐주세요...

NullPointException 오류인데 setEnabled 오류는 처음 겪어봐서 뭐가 문제인지 모르겠어요...

setEnabled에서도 null 오류가 날 수 있는 건가요..?

 

?

08-18 15:14:26.890 18302-18302/com.example.user E/AndroidRuntime: FATAL EXCEPTION: main                                                                      Process: com.example.user, PID: 18302                                                                      java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.setEnabled(boolean)' on a null object reference                                                                          at com.example.geulgil.Mygil.showMenu(Mygil.java:305)                                                                          at com.example.geulgil.Mygil.ongotomenuClick(Mygil.java:277)                                                                          at com.example.geulgil.Mygil.onClick(Mygil.java:203)                                                                          at android.view.View.performClick(View.java:5697)                                                                          at android.view.View$PerformClick.run(View.java:22526)                                                                          at android.os.Handler.handleCallback(Handler.java:739)                                                                          at android.os.Handler.dispatchMessage(Handler.java:95)                                                                          at android.os.Looper.loop(Looper.java:158)                                                                          at android.app.ActivityThread.main(ActivityThread.java:7229)                                                                          at java.lang.reflect.Method.invoke(Native Method)                                                                          at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)                                                                          at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)

 

Answer 1

view 자체가 null일 듯 한데요.

Comments

view 자체가 null이었어요! 리스트뷰안에 아이템이 있다고 생각했는데 그게 아니었나봐요! if문을 써서 잘 해결했습니다..!

Answer 2

왠지 view 선언되기도 전에 호출해서 null 뜨시는거같은데