I have imported an existing db to my Android Studio Project. I am trying to run a search query on database and feed the results to my recycler view but it seems all I am getting from my db is null or similar.... I tried removing the WHERE arguments but didn't work. Maybe it is a silly question but this is my first real world project and I am kind of lost, I appreciate any help.
class BackgroundRunnable implements Runnable {
private String name;
public BackgroundRunnable(String name) {
this.name = name;
}
@Override
public void run() {
Log.d(TAG, "code is in the Runnable");
final Map<Integer, String> backgroundmap = new HashMap<>();
DatabaseAccess mydatabase = DatabaseAccess.getInstance(getContext());
mydatabase.open();
Cursor cursor = mydatabase.SearchbyName();
if (cursor != null && cursor.moveToFirst()) {
for (int i = 0; i < cursor.getCount(); i++) {
Log.d(TAG, "MainFragment code in cursor result:" + cursor.getString(cursor.getColumnIndex("name")));
backgroundmap.put(cursor.getInt(cursor.getColumnIndex("id")), cursor.getString(cursor.getColumnIndex("name")));
cursor.moveToNext();
}
cursor.close();
mainHandler.post(new Runnable() {
@Override
public void run() {
keyList.addAll(backgroundmap.keySet());
valueList.addAll(backgroundmap.values());
adapter.setvalues(keyList, valueList);
}
});
}
mydatabase.close();
}
}
After 2 days of pulling my hair out, I figured out an answer. In short: create the database using sqlite in the terminal or similar, don't use external .exe like DB Browser. I noticed that the database I create and imported from DB Browser appeared as empty even though a check in DB Browser would tell otherwise. I recreated the tables and values but to no avail. Then I created a new database with another name and changed my Database Helper class, worked like a charm.... –
Collected from the Internet
Please contact [email protected] to delete if infringement.
Comments