How to use

select

method

in

com.mikepenz.fastadapter.FastAdapter

private void undoChange() {
  if (mHistory != null) {
    if (mHistory.action == ACTION_REMOVE) {
      for (int i = 0, size = mHistory.items.size(); i < size; i++) {
        FastAdapter.RelativeInfo<Item> relativeInfo = mHistory.items.get(i);
        if (relativeInfo.adapter instanceof IItemAdapter) {
          IItemAdapter<?, Item> adapter = (IItemAdapter<?, Item>) relativeInfo.adapter;
          adapter.addInternal(relativeInfo.position, asList(relativeInfo.item));
          if (relativeInfo.item.isSelected()) {
            mAdapter.select(relativeInfo.position);
          }
        }
      }
    }
  }
  mHistory = null;
}

  @Override
  public void onClick(View v, int position, FastAdapter<RadioButtonSampleItem> fastAdapter, RadioButtonSampleItem item) {
    if (!item.isSelected()) {
      Set<Integer> selections = fastAdapter.getSelections();
      if (!selections.isEmpty()) {
        int selectedPosition = selections.iterator().next();
        fastAdapter.deselect();
        fastAdapter.notifyItemChanged(selectedPosition);
      }
      fastAdapter.select(position);
    }
  }
}

@Test
public void select() throws Exception {
  adapter.withSelectable(true);
  itemAdapter.set(TestDataGenerator.genTestItemList(100));
  assertThat(adapter.getSelectedItems().size()).isEqualTo(0);
  assertThat(adapter.getSelections().size()).isEqualTo(0);
  adapter.select(10);
  assertThat(adapter.getSelectedItems().size()).isEqualTo(1);
  assertThat(adapter.getSelectedItems().iterator().next().getIdentifier()).isEqualTo(10);
  assertThat(adapter.getSelections().size()).isEqualTo(1);
  assertThat(adapter.getSelections().iterator().next()).isEqualTo(10);
}

/**
 * set the selection of the MiniDrawer
 *
 * @param identifier the identifier of the item which should be selected (-1 for none)
 */
public void setSelection(long identifier) {
  if (identifier == -1) {
    mAdapter.deselect();
  }
  int count = mAdapter.getItemCount();
  for (int i = 0; i < count; i++) {
    IDrawerItem item = mAdapter.getItem(i);
    if (item.getIdentifier() == identifier && !item.isSelected()) {
      mAdapter.deselect();
      mAdapter.select(i);
    }
  }
}

mAdapter.select(mSelectedItemPosition);

mAdapter.select(select + profileOffset);