-1
저는 Android에 정말 익숙합니다. 따라서 내 잘못은 매우 어리 석습니다.하지만 내 애플리케이션은 볼 수있는 이유로 인해 추락했습니다.아무 이유없이 Android 앱이 다운 됨
내 로그 캣 출력 :
05-25 19:15:25.656: D/dalvikvm(25858): threadid=1: still suspended after undo (sc=1 dc=1)
05-25 19:15:30.171: D/AndroidRuntime(25858): Shutting down VM
05-25 19:15:30.171: W/dalvikvm(25858): threadid=1: thread exiting with uncaught exception (group=0x40e1aa08)
05-25 19:15:30.251: E/AndroidRuntime(25858): FATAL EXCEPTION: main
05-25 19:15:30.251: E/AndroidRuntime(25858): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{de.mo.securegate/de.mo.securegate.MainActivity}: java.lang.NullPointerException
05-25 19:15:30.251: E/AndroidRuntime(25858): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2228)
05-25 19:15:30.251: E/AndroidRuntime(25858): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2362)
05-25 19:15:30.251: E/AndroidRuntime(25858): at android.app.ActivityThread.access$600(ActivityThread.java:156)
05-25 19:15:30.251: E/AndroidRuntime(25858): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1250)
05-25 19:15:30.251: E/AndroidRuntime(25858): at android.os.Handler.dispatchMessage(Handler.java:99)
05-25 19:15:30.251: E/AndroidRuntime(25858): at android.os.Looper.loop(Looper.java:137)
05-25 19:15:30.251: E/AndroidRuntime(25858): at android.app.ActivityThread.main(ActivityThread.java:5229)
05-25 19:15:30.251: E/AndroidRuntime(25858): at java.lang.reflect.Method.invokeNative(Native Method)
05-25 19:15:30.251: E/AndroidRuntime(25858): at java.lang.reflect.Method.invoke(Method.java:525)
05-25 19:15:30.251: E/AndroidRuntime(25858): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:799)
05-25 19:15:30.251: E/AndroidRuntime(25858): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:566)
05-25 19:15:30.251: E/AndroidRuntime(25858): at dalvik.system.NativeStart.main(Native Method)
05-25 19:15:30.251: E/AndroidRuntime(25858): Caused by: java.lang.NullPointerException
05-25 19:15:30.251: E/AndroidRuntime(25858): at android.content.ContextWrapper.getSharedPreferences(ContextWrapper.java:161)
05-25 19:15:30.251: E/AndroidRuntime(25858): at de.mo.securegate.MainActivity.<init>(MainActivity.java:28)
05-25 19:15:30.251: E/AndroidRuntime(25858): at java.lang.Class.newInstanceImpl(Native Method)
05-25 19:15:30.251: E/AndroidRuntime(25858): at java.lang.Class.newInstance(Class.java:1319)
05-25 19:15:30.251: E/AndroidRuntime(25858): at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
05-25 19:15:30.251: E/AndroidRuntime(25858): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2219)
05-25 19:15:30.251: E/AndroidRuntime(25858): ... 11 more
어떤 아이디어?
내가 배운 것은 항상 이유가 있습니다. Activity를 인스턴스화하는 동안 NullPointerExeption처럼 보입니다. ContextWrapper.java에서 161 행을 확인 했습니까? –
라인 번호. NPE를 일으키는 MainActivity에서 28. 이 선을 과시하십시오. – Sunny
아마도 당신은 아마도 메서드 밖에서'SharedPreferences'를 얻으 려하고있을 것입니다. 코드 – codeMagic