coly1194

为什么我是用setEditText方法时总是报on a null object reference

3

调试时不是Null啊，走到这个方法就报错了。  E/AndroidRuntime: FATAL EXCEPTION: main Process: com.oyon.ticketplatform, PID: 19712 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.oyon.ticketplatform/com.oyon.ticketplatform.app_act.QRActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void com.jay.easykeyboard.impl.SystemOnKeyboardActionListener.setEditText(android.widget.EditText)' on a null object reference at...