2020-03-06 16:14:32.013 2296-2296/com.example.arnavigation E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.arnavigation, PID: 2296
java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.view.View.findViewById(int)' on a null object reference
at com.baidu.platform.comapi.walknavi.g.a.G(WalkUIController.java:849)
at com.baidu.platform.comapi.walknavi.g.a.H(WalkUIController.java:869)
at com.baidu.platform.comapi.walknavi.g.a.<init>(WalkUIController.java:352)
at com.baidu.platform.comapi.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$1.onRoutePlanSuccess(MainActivity.java:178)
at com.baidu.mapapi.walknavi.controllers.a.c.b(WalkNaviManager.java:425)
at com.baidu.platform.comapi.wnplatform.j.e.handleMessage(WRoutePlaner.java:116)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7682)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:516)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950)
這是錯誤資訊，按照官網的格式寫的代碼，不知道有什么問題
uj5u.com熱心網友回復：
findViewById沒有找到物件，你看看是不是你的id有問題，仔細對一下，一般都是低級錯誤導致的轉載請註明出處，本文鏈接：https://www.uj5u.com/yidong/58736.html
標籤：Android
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