나는이 예외를 잡을 수 없을 것 같아 앱이 충돌한다. 난 그냥 앱 충돌 및 널 포인터 예외 여기내 예외를 잡을 수 없다
가 계속
public void GoToStation(View v)
{
try
{
Intent myIntent = new Intent(MainActivity.this, CustomizedListViewStudentZone.class);
startActivityForResult(myIntent, 0);
}
}
catch (Exception e)
{
Toast.makeText(this, "You need a data connection to view Safety Zones", Toast.LENGTH_LONG).show();
}
은 오류가 CustomizedListViewStation
의 onCreate
에, 가브리엘 네토에 의해 언급 한 바와 같이 내 로그인 고양이
01-06 04:55:28.667: E/AndroidRuntime(2983): FATAL EXCEPTION: main
01-06 04:55:28.667: E/AndroidRuntime(2983): java.lang.RuntimeException: Unable to start activity ComponentInfo{police.uk.greatermanchesterpoliceandroid/police.uk.greatermanchesterpoliceandroid.CustomizedListViewStation}: java.lang.NullPointerException
01-06 04:55:28.667: E/AndroidRuntime(2983): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1830)
01-06 04:55:28.667: E/AndroidRuntime(2983): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1851)
01-06 04:55:28.667: E/AndroidRuntime(2983): at android.app.ActivityThread.access$1500(ActivityThread.java:132)
01-06 04:55:28.667: E/AndroidRuntime(2983): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1038)
01-06 04:55:28.667: E/AndroidRuntime(2983): at android.os.Handler.dispatchMessage(Handler.java:99)
01-06 04:55:28.667: E/AndroidRuntime(2983): at android.os.Looper.loop(Looper.java:150)
01-06 04:55:28.667: E/AndroidRuntime(2983): at android.app.ActivityThread.main(ActivityThread.java:4277)
01-06 04:55:28.667: E/AndroidRuntime(2983): at java.lang.reflect.Method.invokeNative(Native Method)
01-06 04:55:28.667: E/AndroidRuntime(2983): at java.lang.reflect.Method.invoke(Method.java:507)
01-06 04:55:28.667: E/AndroidRuntime(2983): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
01-06 04:55:28.667: E/AndroidRuntime(2983): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
01-06 04:55:28.667: E/AndroidRuntime(2983): at dalvik.system.NativeStart.main(Native Method)
01-06 04:55:28.667: E/AndroidRuntime(2983): Caused by: java.lang.NullPointerException
01-06 04:55:28.667: E/AndroidRuntime(2983): at police.uk.greatermanchesterpoliceandroid.CustomizedListViewStation.onCreate(CustomizedListViewStation.java:100)
01-06 04:55:28.667: E/AndroidRuntime(2983): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1072)
01-06 04:55:28.667: E/AndroidRuntime(2983): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1794)
01-06 04:55:28.667: E/AndroidRuntime(2983): ... 11 more
예외 로그캣을 게시하십시오 –
NPE를 잡으실 필요가 있습니다 CustomizedListViewStudentZone.onCreate – roostertech
오류가 주어진 코드에 없습니다. 당신이 시작하는 활동에 있습니다. '01-06 04 : 55 : 28.667 : E/AndroidRuntime (2983) : police.uk.greatermanchesterpoliceandroid.CustomizedListViewStation.onCreate (CustomizedListViewStation.java:100)' –