У меня есть два списка, каждое из которых находится в отдельном действии, и я использую намерение, чтобы отправить каждую строку из первого списка в другое, намерение прекрасно работает, но когда я открываю второе действие, ничто не сохраняется в моей базе данных здесь мой код:
Main Activity(the first Activity)
listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long l) {
Intent intent = new Intent(MainActivity.this, cc.class);
intent.putExtra("EXTRAKEY_ID",l);// THIS ADDED
startActivity(intent);
fav_name = getAllDataInCurrentLocale.getString(getAllDataInCurrentLocale.getColumnIndex(FAVOURITES_COL_NAME));
Toast.makeText(MainActivity.this, fav_name+" Added To Favorite", Toast.LENGTH_SHORT).show();
return true;
}
});
CC Activity(The Second Activity)
fav_id = getIntent().getLongExtra("EXTRAKEY_ID", 0);
manageFavouritesListView();
if (fav_id==0){
}
getDataInCurrentLocaleById = dbSqlite.getDataInCurrentLocaleById(this,fav_id);
if (getDataInCurrentLocaleById.moveToFirst()) {
fav_name = getDataInCurrentLocaleById.getString(getDataInCurrentLocaleById.getColumnIndex(FAVOURITES_COL_NAME));
}
getDataInCurrentLocaleById.close();
}
private void manageFavouritesListView() {
getDataInCurrentLocaleById = dbSqlite.getDataInCurrentLocaleById(this,fav_id);
if (favourites_adapter == null) {
favourites_adapter = new SimpleCursorAdapter(
this,
R.layout.textview2,
getDataInCurrentLocaleById,
new String[]{FAVOURITES_COL_NAME},
new int[]{R.id.textview10},
0
);
listView1.setAdapter(favourites_adapter);
favourites_adapter.notifyDataSetChanged();
setListViewHandler(listView1);
} else {
favourites_adapter.swapCursor(getDataInCurrentLocaleById);
}
}
My DataBase(DB_Sqlite)
public class DB_Sqlite extends SQLiteOpenHelper {
public static final String BDname = "data.db";
public static final int DBVERSION = 1; /*<<<<< ADDED BUT NOT NEEDED */
public static final String TABLE_FAVOURITES = "mytable";
public static final String FAVOURITES_COL_ID = BaseColumns._ID; /*<<<< use the Android stock ID name*/
public static final String FAVOURITES_COL_NAME = "name";
public static final String FAVOURITES_COL_FAVOURITEFLAG = "favourite_flag"; /*<<<<< NEW COLUMN */
public DB_Sqlite(@Nullable Context context) {
super(context, BDname, null, DBVERSION /*<<<<< used constant above */);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("create table " + TABLE_FAVOURITES + " (" +
FAVOURITES_COL_ID + " INTEGER PRIMARY KEY," + /*<<<<< AUTOINCREMENT NOT NEEDED AND IS INEFFICIENT */
FAVOURITES_COL_NAME + " TEXT, " +
FAVOURITES_COL_FAVOURITEFLAG + " INTEGER DEFAULT 0" + /*<<<<< COLUMN ADDED */
")");
/* CHANGES HERE BELOW loop adding all Resource names NOT VALUES */
ContentValues cv = new ContentValues();
for (String s: StringResourcesHandling.getAllStringResourceNames()) {
cv.clear();
cv.put(FAVOURITES_COL_NAME,s);
db.insert(TABLE_FAVOURITES,null,cv);
}
}
@Override
public void onUpgrade(SQLiteDatabase db, int i, int i1) {
db.execSQL("DROP TABLE IF EXISTS " + TABLE_FAVOURITES);
onCreate(db);
}
public boolean insertData(long id){
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(FAVOURITES_COL_ID, id);
long result = db.insert("favorite",null, contentValues);
if (result == -1)
return false;
else
return true;
}
/* Getting everything and make MatrixCursor VALUES from Resource names from Cursor with Resource names */
public Cursor getAllDataInCurrentLocale(Context context) {
SQLiteDatabase db = this.getWritableDatabase();
Cursor csr = db.query(TABLE_FAVOURITES,null,null,null,null,null,null);
if (csr.getCount() < 1) return csr;
MatrixCursor mxcsr = new MatrixCursor(csr.getColumnNames(),csr.getCount());
while (csr.moveToNext()) {
mxcsr.addRow(convertCursorRow(context,csr,new String[]{FAVOURITES_COL_NAME}));
}
csr.close();
return mxcsr;
}
public Cursor getDataInCurrentLocaleById(Context context, long id) {
SQLiteDatabase db = this.getWritableDatabase();
String wherepart = FAVOURITES_COL_ID + "=?";
String[] args = new String[]{String.valueOf(id)};
Cursor csr = db.query(TABLE_FAVOURITES,null,wherepart,args,null,null,null);
if (csr.getCount() < 1) return csr;
MatrixCursor mxcsr = new MatrixCursor(csr.getColumnNames(),csr.getCount());
while (csr.moveToNext()) {
mxcsr.addRow(convertCursorRow(context,csr,new String[]{FAVOURITES_COL_NAME}));
}
csr.close();
return mxcsr;
}
/* This getting columns from Cursor into String array (no BLOB handleing)*/
public String[] convertCursorRow(Context context, Cursor csr, String[] columnsToConvert) {
String[] rv = new String[csr.getColumnCount()];
for (String s: csr.getColumnNames()) {
boolean converted = false;
for (String ctc: columnsToConvert) {
if (csr.getType(csr.getColumnIndex(s)) == Cursor.FIELD_TYPE_BLOB) {
//........ would have to handle BLOB here if needed (another question if needed)
}
if (ctc.equals(s)) {
rv[csr.getColumnIndex(s)] = StringResourcesHandling.getStringByName(context,csr.getString(csr.getColumnIndex(s)));
converted = true;
}
} if (!converted) {
rv[csr.getColumnIndex(s)] = csr.getString(csr.getColumnIndex(s));
}
}
return rv;
}
}
Я не знаю, в чем проблема, пожалуйста, помогите спасибо заранее