안드로이드 개발 질문/답변
(글 수 45,052)
로그입니다.
08-15 14:47:49.565: ERROR/AndroidRuntime(981): FATAL EXCEPTION: main
08-15 14:47:49.565: ERROR/AndroidRuntime(981): java.lang.RuntimeException: Unable to start activity ComponentInfo{exam.Test/exam.Test.Bonbu1}: java.lang.NullPointerException
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.os.Handler.dispatchMessage(Handler.java:99)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.os.Looper.loop(Looper.java:123)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.app.ActivityThread.main(ActivityThread.java:4627)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at java.lang.reflect.Method.invokeNative(Native Method)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at java.lang.reflect.Method.invoke(Method.java:521)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at dalvik.system.NativeStart.main(Native Method)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): Caused by: java.lang.NullPointerException
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at exam.Test.Bonbu1.onCreate(Bonbu1.java:35)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): ... 11 more
08-15 14:47:49.565: ERROR/AndroidRuntime(981): java.lang.RuntimeException: Unable to start activity ComponentInfo{exam.Test/exam.Test.Bonbu1}: java.lang.NullPointerException
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.os.Handler.dispatchMessage(Handler.java:99)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.os.Looper.loop(Looper.java:123)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.app.ActivityThread.main(ActivityThread.java:4627)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at java.lang.reflect.Method.invokeNative(Native Method)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at java.lang.reflect.Method.invoke(Method.java:521)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at dalvik.system.NativeStart.main(Native Method)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): Caused by: java.lang.NullPointerException
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at exam.Test.Bonbu1.onCreate(Bonbu1.java:35)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
08-15 14:47:49.565: ERROR/AndroidRuntime(981): ... 11 more
소스입니다.
mHelper = new PhonebookDBHelper(this);
Cursor cursor;
SQLiteDatabase db = mHelper.getWritableDatabase();
cursor = db.rawQuery("SELECT _id, loc3, phonenum FROM phonebook WHERE loc1='본부' AND loc2='대표전화'",null);
startManagingCursor(cursor);
SimpleCursorAdapter Adapter = null;
Adapter = new SimpleCursorAdapter(this,
android.R.layout.simple_list_item_2,
cursor, new String[] { "loc3", "phonenum" },
new int[] { android.R.id.text1, android.R.id.text2});
ListView list = (ListView)findViewById(R.id.listbonbu1);
list.setAdapter(Adapter);
Adapter = new SimpleCursorAdapter(this,
android.R.layout.simple_list_item_2,
cursor, new String[] { "loc3", "phonenum" },
new int[] { android.R.id.text1, android.R.id.text2});
ListView list = (ListView)findViewById(R.id.listbonbu1);
list.setAdapter(Adapter);
쿼리문에 _id집어너으니 아까문제는 해결이됫는데
커스바이 찍어보면list.setAdapter(Adapter);
요부분이 에러인데요 값이안들어가는거같아요ㅠㅠ
// ArrayList<String> listbonbu1 = new ArrayList<String>();
// ArrayAdapter<String> Adapter;
// Adapter = new ArrayAdapter<String>(Bonbu1.this,R.layout.simplelist,listbonbu1);
// ListView list = (ListView)findViewById(R.id.listbonbu1);
//while (cursor.moveToNext()){
// String loc1 = cursor.getString(0);
// String pnum = cursor.getString(1);
// String result = (loc1 + " "+ pnum + "\n");
//String Result = (loc1+"\n");
// listbonbu1.add(result);
// }
//list.setAdapter(Adapter);
// cursor.close();
// mHelper.close();
// ArrayAdapter<String> Adapter;
// Adapter = new ArrayAdapter<String>(Bonbu1.this,R.layout.simplelist,listbonbu1);
// ListView list = (ListView)findViewById(R.id.listbonbu1);
//while (cursor.moveToNext()){
// String loc1 = cursor.getString(0);
// String pnum = cursor.getString(1);
// String result = (loc1 + " "+ pnum + "\n");
//String Result = (loc1+"\n");
// listbonbu1.add(result);
// }
//list.setAdapter(Adapter);
// cursor.close();
// mHelper.close();
이렇게 코딩해도 같은부분에서 같은에러입니다 ㅠㅠ



