잡히지 않은 예외가 어디서 오는지 알아내는 방법을 모르겠습니다. 나는 stackoverflow 게시물을 살펴보고 몇 가지 솔루션을 찾아 보았습니다. 내가 알 수있는 한, 내 매니페스트에 내 활동 "모니터"가 나열되어 있으며 패키지의 일부입니다. 그러나 "모니터"활동을 시작할 때 널 포인터 예외가 발생합니다. 이 예외를 찾으려면 무엇을 찾아야합니까?
02-03 21:44:14.192: E/Trace(19701): error opening trace file: No such file or directory (2)
02-03 21:44:14.262: I/BugSenseHandler(19701): Registering default exceptions handler
02-03 21:44:14.633: I/Setup(19701): Setup activity created
02-03 21:44:14.813: I/BugSenseHandler(19701): Flushing...
02-03 21:44:14.823: I/BugSenseHandler(19701): Registering default exceptions handler
02-03 21:44:15.023: W/BugSenseHandler(19701): Transmitting ping Exception No peer certificate
02-03 21:44:15.403: I/Adreno200-EGLSUB(19701): <ConfigWindowMatch:2087>: Format RGBA_8888.
02-03 21:44:15.594: E/(19701): <s3dReadConfigFile:75>: Can't open file for reading
02-03 21:44:15.594: E/(19701): <s3dReadConfigFile:75>: Can't open file for reading
02-03 21:44:19.318: W/dalvikvm(19701): threadid=1: thread exiting with uncaught exception (group=0x41bfb438)
02-03 21:44:22.401: E/AndroidRuntime(19701): FATAL EXCEPTION: main
02-03 21:44:22.401: E/AndroidRuntime(19701): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.mpeterson.sousvide/com.mpeterson.sousvide.Monitor}: java.lang.NullPointerException
02-03 21:44:22.401: E/AndroidRuntime(19701): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2024)
02-03 21:44:22.401: E/AndroidRuntime(19701): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2132)
02-03 21:44:22.401: E/AndroidRuntime(19701): at android.app.ActivityThread.access$600(ActivityThread.java:139)
02-03 21:44:22.401: E/AndroidRuntime(19701): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1231)
02-03 21:44:22.401: E/AndroidRuntime(19701): at android.os.Handler.dispatchMessage(Handler.java:99)
02-03 21:44:22.401: E/AndroidRuntime(19701): at android.os.Looper.loop(Looper.java:137)
02-03 21:44:22.401: E/AndroidRuntime(19701): at android.app.ActivityThread.main(ActivityThread.java:5021)
02-03 21:44:22.401: E/AndroidRuntime(19701): at java.lang.reflect.Method.invokeNative(Native Method)
02-03 21:44:22.401: E/AndroidRuntime(19701): at java.lang.reflect.Method.invoke(Method.java:511)
02-03 21:44:22.401: E/AndroidRuntime(19701): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
02-03 21:44:22.401: E/AndroidRuntime(19701): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:556)
02-03 21:44:22.401: E/AndroidRuntime(19701): at dalvik.system.NativeStart.main(Native Method)
02-03 21:44:22.401: E/AndroidRuntime(19701): Caused by: java.lang.NullPointerException
02-03 21:44:22.401: E/AndroidRuntime(19701): at android.app.Activity.findViewById(Activity.java:1851)
02-03 21:44:22.401: E/AndroidRuntime(19701): at com.mpeterson.sousvide.Monitor.<init>(Monitor.java:51)
02-03 21:44:22.401: E/AndroidRuntime(19701): at java.lang.Class.newInstanceImpl(Native Method)
02-03 21:44:22.401: E/AndroidRuntime(19701): at java.lang.Class.newInstance(Class.java:1319)
02-03 21:44:22.401: E/AndroidRuntime(19701): at android.app.Instrumentation.newActivity(Instrumentation.java:1053)
02-03 21:44:22.401: E/AndroidRuntime(19701): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2015)
02-03 21:44:22.401: E/AndroidRuntime(19701): ... 11 more
your_layout_file.xml의 TextView로 editTextCurTemp를 정의한 경우 다음을 호출해야합니다.
setContentView(R.layout.your_layout_file)
findViewById ()를 수행하기 전에 그렇지 않으면 NPE를 얻게됩니다.
이 기사는 인터넷에서 수집됩니다. 재 인쇄 할 때 출처를 알려주십시오.
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