RecyclerView expanding all items

[vlafourcade]

Hi,

I'm using the ExpansiveLinearLayout and I'm setting the adapter in the onResume method of my activity. All items are collapsed but when I return to this activity all items are expanded. Is there any problem related to setting the adapter for the ExpandableLinearLayout in the onResume method?

Following my code:

activity_items.xml

<com.github.aakira.expandablelayout.ExpandableLinearLayout
    android:id="@+id/list_item_car_expandable_layout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    app:ael_duration="400"
    app:ael_expanded="false">

    <TextView
        android:id="@+id/list_item_car_expandable_layout_information"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:gravity="center_vertical"/>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="8dp"
        android:visibility="visible"
        android:weightSum="2">
    </LinearLayout>
</com.github.aakira.expandablelayout.ExpandableLinearLayout>

CustomAdapter.java

private final List<Item> mItems;
private Context mContext;
private SparseBooleanArray mExpandState = new SparseBooleanArray();

public static class ItemView extends RecyclerView.ViewHolder {
    TextView textDisplayName;
    TextView textInformation;
    ExpandableLinearLayout expandableLayout;
    View buttonLayout;

    public ItemView(View view) {
        super(view);

        textDisplayName = (TextView) view.findViewById(R.id.list_item_car_display_name);
        textInformation = (TextView) view.findViewById(R.id.list_item_car_expandable_layout_information);
        expandableLayout = (ExpandableLinearLayout) view.findViewById(R.id.list_item_car_expandable_layout);
        buttonLayout = view.findViewById(R.id.list_item_car_expand_button);
    }
}

public CustomAdapter(final List<Item> aItems) {
    this.mItems = aItems;
    for (int i = 0; i < mItems.size(); i++) {
        mExpandState.append(i, false);
    }
}

@Override
public ItemView onCreateViewHolder(final ViewGroup parent, final int viewType) {
    this.mContext = parent.getContext();
    return new ItemView(LayoutInflater.from(mContext).inflate(R.layout.list_item_custom, parent, false));
}

private void onClickButton(final ExpandableLinearLayout expandableLayout) {
    expandableLayout.toggle();
}

@Override
public void onBindViewHolder(final ItemView holder, final int position) {
    final Item item = mItems.get(position);
    holder.setIsRecyclable(true);
    holder.textDisplayName.setText(item.getDisplayName());
    holder.textDisplayName.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            onClickButton(holder.expandableLayout);
        }
    });
    holder.expandableLayout.setInRecyclerView(true);
    holder.expandableLayout.setExpanded(mExpandState.get(position));
    holder.expandableLayout.setListener(new ExpandableLayoutListenerAdapter() {
        @Override
        public void onPreOpen() {
            createRotateAnimator(holder.buttonLayout, 0f, 180f).start();
            mExpandState.put(position, true);
        }

        @Override
        public void onPreClose() {
            createRotateAnimator(holder.buttonLayout, 180f, 0f).start();
            mExpandState.put(position, false);
        }
    });

    holder.buttonLayout.setRotation(mExpandState.get(position) ? 180f : 0f);
    holder.buttonLayout.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(final View v) {
            onClickButton(holder.expandableLayout);
        }
    });

    holder.textInformation.setText(tem.getInformation());
}

@Override
public int getItemCount() {
    return mItems.size();
}

public ObjectAnimator createRotateAnimator(final View target, final float from, final float to) {
    ObjectAnimator animator = ObjectAnimator.ofFloat(target, "rotation", from, to);
    animator.setDuration(300);return animator;
}

MyActivity.java

public class MyActivity extends AppCompatActivity {
  @ViewById(R.id.activity_cars_recycler_view)
  protected RecyclerView mRecyclerView;

  @Override
  protected void onCreate(Bundle savedInstance){
      super.onCreate(savedInstance);
      setContentView(R.layout.activity_items);
      mRecyclerView = (RecyclerView) findViewById(R.id.activity_recycler_view);
  }

  @Override
  public void onResume(){
      super.onResume();

      loadItems();
  }

  private void loadItems(){
      mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
      List<Item> items = CustomController.getInstance.getAllItems();;
      mRecyclerViewsetAdapter(new CustomAdapter(items));
  }
}

Thanks in advance, Vinicius Lafourcade

[razon30]

I am facing the same problem. Why the there is no remedy of this? I have followed the document but still no solution. Its frustrating.

[aazam-nouri]

I think you should use holder.setIsRecyclable(false) instead of holder.setIsRecyclable(true);