Process: com. Example. Arnavigation, PID: 2296
Java. Lang. NullPointerException: Attempt to invoke virtual method 'android. View. The view of the android. View. The view. The findViewById (int)' on a null object reference
At com.baidu.platform.com API. Walknavi. G.A.G (WalkUIController. Java: 849)
At com.baidu.platform.com API. Walknavi. G.A.H (WalkUIController. Java: 869)
At com.baidu.platform.com API. Walknavi. G.a. & lt; init> (WalkUIController. Java: 352)
At com.baidu.platform.com API. Walknavi. B.b (WNavigator. Java: 585)
At com. Baidu. Mapapi. Walknavi. Controllers. A.A.A (WalkNaviManager. Java: 189)
At com. Baidu. Mapapi. Walknavi. WalkNavigateHelper. OnCreate (WalkNavigateHelper. Java: 344)
At com. Example. Arnavigation. MainActivity $1 $1. OnRoutePlanSuccess (MainActivity. Java: 178)
At com. Baidu. Mapapi. Walknavi. Controllers. A.C.B (WalkNaviManager. Java: 425)
At com.baidu.platform.com API. Wnplatform. J.E.H andleMessage (WRoutePlaner. Java: 116)
An android. OS. Handler. DispatchMessage (Handler. Java: 107)
. An android OS. Stars. Loop (214). Which Java:
. An android app. ActivityThread. Main (7682) ActivityThread. Java:
The at Java. Lang. Reflect. Method. Invoke (Native Method)
At com. Android. Internal. OS. RuntimeInit $MethodAndArgsCaller. Run (516) RuntimeInit. Java:
At com. Android. Internal. OS. ZygoteInit. Main (ZygoteInit. Java: 950)
This is the error information, according to the format of the website to write code, don't know what's the problem
CodePudding user response:
The findViewById found no object, you see if your id has a problem, look for, are generally of low-level error