Application did not close the cursor or database object that was opened here :
My code is :
public class EventDataSQLHelper extends SQLiteOpenHelper {
private static final String DATABASE_NAME = "my.db";
}
public class Test extends Activity {
EventDataSQLHelper eventsData;
@Override
protected void onDestroy() {
System.out.println("onDestroy");
close();
if (db!=null){
db.close();
}
super.onDestroy();
}
public void close() {
eventsData.close();
}
I have closed the db here.. In all my activities except this its working(no exception is shown).. Here when i press back button from this Test activity the below exception is thrown
02-14 15:59:34.642: ERROR/Database(535): close() was never explicitly called on database '/data/data/com.tesy.connect/databases/test.db'
02-14 15:59:34.642: ERROR/Database(535): android.database.sqlite.DatabaseObjectNotClosedException: Application did not close the cursor or database object that was opened here
02-14 15:59:34.642: ERROR/Database(535): at android.database.sqlite.SQLiteDatabase.<init>(SQLiteDatabase.java:1810)
02-14 15:59:34.642: ERROR/Database(535): at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:817)
02-14 15:59:34.642: ERROR/Database(535): at android.database.sqlite.SQLiteDatabase.openOrCreateDatabase(SQLiteDatabase.java:851)
02-14 15:59:34.642: ERROR/Database(535): at android.database.sqlite.SQLiteDatabase.openOrCreateDatabase(SQLiteDatabase.java:844)
02-14 15:59:34.642: ERROR/Database(535): at android.app.ContextImpl.openOrCreateDatabase(ContextImpl.java:540开发者_JAVA技巧)
02-14 15:59:34.642: ERROR/Database(535): at android.content.ContextWrapper.openOrCreateDatabase(ContextWrapper.java:203)
02-14 15:59:34.642: ERROR/Database(535): at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:98)
02-14 15:59:34.642: ERROR/Database(535): at android.database.sqlite.SQLiteOpenHelper.getReadableDatabase(SQLiteOpenHelper.java:158)
02-14 15:59:34.642: ERROR/Database(535): at com.connect.Test.getEvents(Connect_EY.java:755)
02-14 15:59:34.642: ERROR/Database(535): at com.connect.Test.onCreate(Connect_EY.java:662)
02-14 15:59:34.642: ERROR/Database(535): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
02-14 15:59:34.642: ERROR/Database(535): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
02-14 15:59:34.642: ERROR/Database(535): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
02-14 15:59:34.642: ERROR/Database(535): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
02-14 15:59:34.642: ERROR/Database(535): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
02-14 15:59:34.642: ERROR/Database(535): at android.os.Handler.dispatchMessage(Handler.java:99)
02-14 15:59:34.642: ERROR/Database(535): at android.os.Looper.loop(Looper.java:123)
The exception is thrown on this getEvents line :
public class Test extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.pageview);
startRefreshActivity();
try { /* If No Record Exists Create a New One */
eventsData = new EventDataSQLHelper(this);
Cursor cursor = getEvents();
startManagingCursor(cursor);
}
}
private Cursor getEvents() {
try {
db = eventsData.getReadableDatabase();
Cursor cursor = db.query(EventDataSQLHelper.TABLE, null, null,
null, null, null, null);
startManagingCursor(cursor);
return cursor;
} catch (Exception ex) {
System.out.println("Exception Occured : " + ex.toString());
return null;
}
}
Exception :
02-14 15:59:34.642: ERROR/Database(535): at com.testconnect.Test.getEvents(Test.java:755)
02-14 15:59:34.642: ERROR/Database(535): at com.testconnect.Test.onCreate(Test.java:662)
I resolved the exception. I was calling
db = eventsData.getReadableDatabase();
twice thats why the exception is thrown
Did you try:
Cursor cursor = getEvents();
startManagingCursor(cursor);
cursor.close();
?
Did you try After pass return value close cursor like cursor.close
private Cursor getEvents() {
try {
db = eventsData.getReadableDatabase();
Cursor cursor = db.query(EventDataSQLHelper.TABLE, null, null,
null, null, null, null);
startManagingCursor(cursor);
cursor.close();
return cursor;
} catch (Exception ex) {
System.out.println("Exception Occured : " + ex.toString());
return null;
}
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