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Show warning when no matches

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Sylvia van Os
2019-11-22 20:46:06 +01:00
parent e048fdff59
commit 21a8dc6867
4 changed files with 43 additions and 0 deletions
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24
app/src/main/java/protect/card_locker/DBHelper.java
View File

@@ -175,5 +175,29 @@ public class DBHelper extends SQLiteOpenHelper
return numItems;
}
public int getFilteredLoyaltyCardCount(String filter)
{
String actualFilter = String.format("%%%s%%", filter);
String[] selectionArgs = { actualFilter, actualFilter };
SQLiteDatabase db = getReadableDatabase();
Cursor data = db.rawQuery("SELECT Count(*) FROM " + LoyaltyCardDbIds.TABLE +
" WHERE " + LoyaltyCardDbIds.STORE + " LIKE ? " +
" OR " + LoyaltyCardDbIds.NOTE + " LIKE ? "
, selectionArgs, null);
int numItems = 0;
if(data.getCount() == 1)
{
data.moveToFirst();
numItems = data.getInt(0);
}
data.close();
return numItems;
}
}

10
app/src/main/java/protect/card_locker/MainActivity.java
View File

@@ -87,6 +87,7 @@ public class MainActivity extends AppCompatActivity
final EditText filter = findViewById(R.id.menu_filter);
final ListView cardList = findViewById(R.id.list);
final TextView helpText = findViewById(R.id.helpText);
final TextView noMatchingCardsText = findViewById(R.id.noMatchingCardsText);
final DBHelper db = new DBHelper(this);
if(db.getLoyaltyCardCount() > 0)
@@ -94,12 +95,21 @@ public class MainActivity extends AppCompatActivity
filter.setVisibility(View.VISIBLE);
cardList.setVisibility(View.VISIBLE);
helpText.setVisibility(View.GONE);
if(db.getFilteredLoyaltyCardCount(filterText) > 0)
{
noMatchingCardsText.setVisibility(View.GONE);
}
else
{
noMatchingCardsText.setVisibility(View.VISIBLE);
}
}
else
{
filter.setVisibility(View.GONE);
cardList.setVisibility(View.GONE);
helpText.setVisibility(View.VISIBLE);
noMatchingCardsText.setVisibility(View.GONE);
}
Cursor cardCursor = db.getLoyaltyCardCursor(filterText);