我一直收到错误＆＃34; DatabaseObjectNotClosedException：应用程序未关闭此处打开的游标或数据库对象＆＃34;，但我找不到游标/数据库已关闭。
有人可以告诉我忘记关闭的地方吗？
我正在使用自定义适配器：
OnCreate MainActivity ：
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
gridview = (GridView) findViewById(R.id.gridview);
db = new DatabaseHelper(this);
db.open();
mCursor = db.getAllRecords();
MyCursorAdapter mAdapter = new MyCursorAdapter(MyActivity.this, mCursor, false);
mAdapter.notifyDataSetChanged();
gridview.setAdapter(mAdapter);
mCursor.close();
db.close();
}
MyCursorAdapter.java
import android.app.ProgressDialog;
import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CursorAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
public class MyCursorAdapter extends CursorAdapter {
private final LayoutInflater mInflater;
private ContentResolver mContent;
public Context cContext ;
public MyCursorAdapter(Context context, Cursor c, boolean autoRequery) {
super(context, c, autoRequery);
mInflater = LayoutInflater.from(context);
mContent = context.getContentResolver();
}
ImageView iv;
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return mInflater.inflate(R.layout.list_item, parent, false);
}
@Override
public void bindView(View view, Context context, Cursor cursor) {
String path = cursor.getString(cursor.getColumnIndex("path"));
iv = (ImageView) view.findViewById(R.id.imageView);
new loadImage().execute(path);
String userName = cursor.getString(cursor.getColumnIndex("title"));
TextView userNameTV = (TextView) view.findViewById(R.id.textView);
userNameTV.setText(userName);
cursor.close();
}
private class loadImage extends AsyncTask<String, Integer, Bitmap> {
ProgressDialog dialog;
@Override
protected void onPreExecute() {
// example of setting up something
dialog = new ProgressDialog(cContext);
dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
dialog.setMax(100);
dialog.show();
}
@Override
protected Bitmap doInBackground(String... strings) {
for (int i = 0; i < 20; i++) {
publishProgress(5);
try {
Thread.sleep(88);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
dialog.dismiss();
FileInputStream fin;
try {
fin = cContext.openFileInput(strings[0]);
if(fin !=null && fin.available() > 0) {
return BitmapFactory.decodeStream(fin);
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Bitmap bitmap) {
iv.setImageBitmap(bitmap);
}
@Override
protected void onProgressUpdate(Integer... progress) {
dialog.incrementProgressBy(progress[0]);
}
}
}
可以肯定的是，我在MainActivity的OnPause和OnDestroy中添加了我的附件，如下所示：
@Override
protected void onDestroy() {
if (mCursor != null) {
mCursor.close();
}
if (db != null) {
db.close();
}
}
@Override
protected void onPause() {
if (mCursor != null) {
mCursor.close();
}
if (db != null) {
db.close();
}
}
整个错误：
06-27 16:29:52.238 879-888/com.android.email E/StrictMode﹕ Finalizing a Cursor that has not been deactivated or closed. database = /data/data/com.android.email/databases/EmailProvider.db, table = null, query = SELECT _id AS _id,'SW5ib3g' AS persistentId,
'content://com.android.email.provider/uifolder/' || _id AS folderUri,displayName AS name,flags&1 AS hasChildren,'16424' AS capabilities,3 AS syncWindow,'content://com.android.email.provider/uimessages/' || _id AS conversationListUri,
'content://com.android.email.provider/uisubfolders/' || _id AS childFoldersListUri,NULL AS unseenCount,unreadCount AS unreadCount,CASE WHEN totalCount<0 OR type=3 OR type=4 OR type=6 THEN messageCount ELSE totalCount END AS totalCount,
'content://com.android.email.provider/uirefresh/' || _id AS refreshUri,uiSyncStatus AS syncStatus,uiLastSyncResult AS lastSyncResult,CASE type WHEN 0 THEN 2 WHEN 3 THEN 4 WHEN 4 THEN 8 WHEN 5 THEN 16 WHEN 6 THEN 32 WHEN 7 THEN 64 WHEN 9 THEN 128 WHEN 10 THEN
2048 WHEN 8 THEN 4097 ELSE 1 END AS type,CASE type WHEN 0 THEN 2130837570 WHEN 3 THEN 2130837566 WHEN 4 THEN 2130837574 WHEN 5 THEN 2130837578 WHEN 6 THEN 2130837586 WHEN 9 THEN 2130837582 ELSE -1 END AS iconResId,NULL AS notific
android.database.sqlite.DatabaseObjectNotClosedException: Application did not close the cursor or database object that was opened here
at android.database.sqlite.SQLiteCursor.<init>(SQLiteCursor.java:98)
at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:50)
at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1314)
at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1253)
at com.android.email.provider.EmailProvider.uiQuery(EmailProvider.java:4302)
at com.android.email.provider.EmailProvider.query(EmailProvider.java:1212)
at android.content.ContentProvider.query(ContentProvider.java:857)
at android.content.ContentProvider$Transport.query(ContentProvider.java:200)
at android.content.ContentResolver.query(ContentResolver.java:461)
at android.content.ContentResolver.query(ContentResolver.java:404)
at com.android.email.NotificationController.refreshNotificationsForAccountInternal(NotificationController.java:635)
at com.android.email.NotificationController.refreshNotificationsForAccount(NotificationController.java:588)
at com.android.email.NotificationController.access$1200(NotificationController.java:65)
at com.android.email.NotificationController$MessageContentObserver.onChange(NotificationController.java:705)
at android.database.ContentObserver.onChange(ContentObserver.java:129)
at android.database.ContentObserver$NotificationRunnable.run(ContentObserver.java:180)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at com.android.email.NotificationController$NotificationThread.run(NotificationController.java:792)
at java.lang.Thread.run(Thread.java:841)