@Override
public void onEdit(Exercise exercise, int position) {
if (position == -1) {
for (Exercise e : workout.getExercises()) {
String name = e.getName();
if (name.equals(exercise.getName())) {
Toast toast = Toast.makeText(this, "Exercise already exists!", Toast.LENGTH_SHORT);
toast.setGravity(Gravity.CENTER, 0, 0);
toast.show();
return;
}
}
}
ArrayList<Integer> positions = adapter.getCursorPositions();
MatrixCursor newcursor = new MatrixCursor(new String[] {"_id", "name"});
// int lastCursorPosition = cursor.getPosition();
// copy over old cursor items to the new one.
if (cursor != null) {
cursor.moveToFirst();
for (int i = 0; i < positions.size(); i++) {
int cursorPosition = positions.get(i);
int listPosition = adapter.getListPosition(positions.get(i));
// dont add to new cursor if item has been removed.
if (listPosition == DragSortCursorAdapter.REMOVED) continue;
cursor.moveToPosition(cursorPosition);
String c = cursor.getString(1);
// if its not a new exercise, check to see if the current cursor list position mapping
// matches the one we are working with. If yes, set c to be the new exercise.
if (position >= 0) {
if (position == listPosition) {
c = exercise.getName();
}
}
newcursor.newRow().add(listPosition).add(c);
}
}
// add the new row
if (position < 0 && exercise != null) {
newcursor.newRow().add(newcursor.getCount()).add(exercise.getName());
}
ArrayList<Exercise> newExercises = new ArrayList<Exercise>();
newcursor.moveToFirst();
for (int i = 0; i < newcursor.getCount(); i++) {
String ename = newcursor.getString(1);
Exercise e = workout.getExercise(ename);
if (e != null) newExercises.add(e);
else if (i == newcursor.getCount() - 1) newExercises.add(exercise);
if (!newcursor.moveToNext()) break;
}
adapter.changeCursor(newcursor);
cursor = newcursor;
// modify workout to reflect the change
workout.setExercises(newExercises);
}
// checks if any exercises have been removed and updates the global list accordingly
// also rewrites the workouts file on the device
private void checkRemoved() {
ArrayList<Integer> positions = adapter.getCursorPositions();
ArrayList<Exercise> newExercises = new ArrayList<Exercise>();
if (cursor != null) {
cursor.moveToFirst();
for (int i = 0; i < positions.size(); i++) {
int cursorPosition = positions.get(i);
cursor.moveToPosition(cursorPosition);
String c = cursor.getString(1);
newExercises.add(workout.getExercise(c));
}
workout.setExercises(newExercises);
}
}