android.database.Cursor is a class that represents a cursor object over a database query result set. It allows developers to iterate over the rows returned by a SQL query and retrieve column data. The method isLast() checks whether the cursor is pointing to the last row in the result set. It returns true if the cursor is positioned on the last row.
Example 1:
// Assume a cursor object has been initialized
if(cursor.moveToFirst()){ do { // Do something with the row data
if (cursor.isLast()) { // Do something if it is the last row }
} while (cursor.moveToNext()); }
In this example, we use the do-while loop to iterate over rows returned by the query. Inside the loop, we check if the current row is the last row using the isLast() method. If it is the last row, we can perform certain operations.
Example 2:
// Assume a cursor object has been initialized // Retrieve column data
if(cursor.moveToFirst()){ do { String name = cursor.getString(cursor.getColumnIndex("name")); String email = cursor.getString(cursor.getColumnIndex("email"));
// Do something with the data } while (cursor.moveToNext());
if (cursor.isLast()) { // Notify that the result set is complete // Send a toast message to the user } }
In this example, we retrieve column data from each row returned by the query. After processing all rows, we check if the cursor is the last row. If it is the last row, we can notify that the result set is complete to the user. We can do so by displaying a message using the Toast class.
The android.database.Cursor is part of the Android SDK (Software Development Kit) and is included in the android.database package.
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