<com.github.aakira.expandablelayout.ExpandableLinearLayout
    android:id="@+id/expandableLayout"
    android:layout_width="match_parent"
    android:layout_below="@+id/overlayText"
    android:layout_height="wrap_content"
    android:background="@color/colorAccent"
    app:ael_expanded="false"
    app:ael_duration="300"
    app:ael_interpolator="fastOutSlowIn"
    app:ael_orientation="vertical">

    <TextView
        android:layout_width="match_parent"
        android:minHeight="206dp"
        android:layout_height="wrap_content"/>

</com.github.aakira.expandablelayout.ExpandableLinearLayout>

    mOverlayText.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            mExpandLayout.toggle();
        }
    });`

<com.github.aakira.expandablelayout.ExpandableLinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/placeholder"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <!--<TextView xmlns:android="http://schemas.android.com/apk/res/android"-->
            <!--android:id="@+id/tv7778"-->
            <!--android:layout_width="match_parent"-->
            <!--android:layout_height="@dimen/input_height"-->
            <!--android:background="@drawable/border11_bottom"-->
            <!--android:gravity="center_vertical"-->
            <!--android:text="WE NEVER FORGET WE NEVER FORGIVE"/>-->

    </com.github.aakira.expandablelayout.ExpandableLinearLayout>

E/AndroidRuntime: FATAL EXCEPTION: main
                  Process: io.test PID: 3618
                  java.lang.ArrayIndexOutOfBoundsException: length=0; index=-1
                      at java.util.ArrayList.get(ArrayList.java:310)
                      at com.github.aakira.expandablelayout.ExpandableLinearLayout.onMeasure(ExpandableLinearLayout.java:126)
                      at android.view.View.measure(View.java:18788)
                      at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715)
                      at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)
                      at android.view.View.measure(View.java:18788)
                      at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715)
                      at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)
                      at android.view.View.measure(View.java:18788)
                      at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
                      at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
                      at android.view.View.measure(View.java:18788)
                      at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
                      at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1465)
                      at android.widget.LinearLayout.measureVertical(LinearLayout.java:748)
                      at android.widget.LinearLayout.onMeasure(LinearLayout.java:630)
                      at android.view.View.measure(View.java:18788)
                      at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5951)
                      at android.widget.FrameLayout.onMeasure(FrameLayout.java:194)
                      at com.android.internal.policy.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2643)
                      at android.view.View.measure(View.java:18788)
                      at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2100)
                      at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1216)
                      at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1452)
                      at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1107)
                      at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6013)
                      at android.view.Choreographer$CallbackRecord.run(Choreographer.java:858)
                      at android.view.Choreographer.doCallbacks(Choreographer.java:670)
                      at android.view.Choreographer.doFrame(Choreographer.java:606)
                      at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:844)
                      at android.os.Handler.handleCallback(Handler.java:739)
                      at android.os.Handler.dispatchMessage(Handler.java:95)
                      at android.os.Looper.loop(Looper.java:148)
                      at android.app.ActivityThread.main(ActivityThread.java:5417)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

                view = getChildAt(i);
                params = (LayoutParams) view.getLayoutParams();
                view.measure(MeasureSpec.makeMeasureSpec(view.getMeasuredWidth()- params.leftMargin -                                 params.rightMargin, MeasureSpec.AT_MOST), MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));

if (!defaultExpanded) {
            setLayoutSize(closePosition);

setLayoutSize(
                (isExpanded()
                ?layoutSize
                :closePosition)
            );

public class Tab3 extends Fragment {

public Tab3 () {
    // Required empty public constructor
}
public Tab3 newInstance() {
    return new Tab3 ();
}

@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    return inflater.inflate(R.layout.tab_3, container, false);
}

@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);

    final RecyclerView recyclerView = (RecyclerView) view.findViewById(R.id.recyclerView);
    recyclerView.setHasFixedSize(true);
    recyclerView.addItemDecoration(new DividerItemDecoration(getActivity()));
    recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));

    final List<DataTab3> data = new ArrayList<>();
    data.add(new DataTab3(
            "CardView no.1",
            Utils.createInterpolator(Utils.FAST_OUT_LINEAR_IN_INTERPOLATOR)));
    data.add(new DataTab3(
            "CardView no.2",
            Utils.createInterpolator(Utils.FAST_OUT_LINEAR_IN_INTERPOLATOR)));
    data.add(new DataTab3(
            "CardView no.3",
            Utils.createInterpolator(Utils.FAST_OUT_LINEAR_IN_INTERPOLATOR)));
    data.add(new DataTab3(
            "CardView no.4",
            Utils.createInterpolator(Utils.FAST_OUT_LINEAR_IN_INTERPOLATOR)));
    data.add(new DataTab3(
            "CardView no.5",
            Utils.createInterpolator(Utils.FAST_OUT_LINEAR_IN_INTERPOLATOR)));

    recyclerView.setAdapter(new NewAdapter(data));
}
}

public class NewAdapter extends RecyclerView.Adapter<NewAdapter.ViewHolder> {

private final List<DataTab3> data;
private Context context;
private SparseBooleanArray expandState = new SparseBooleanArray();

public NewAdapter(final List<DataTab3> data) {
    this.data = data;
    for (int i = 0; i < data.size(); i++) {
        expandState.append(i, false);
    }
}

@Override
public ViewHolder onCreateViewHolder(final ViewGroup parent, final int viewType) {
    this.context = parent.getContext();
    return new ViewHolder(LayoutInflater.from(context)
            .inflate(R.layout.tab_3_adapter, parent, false));
}

@Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
    final DataTab31 item = data.get(position);
    holder.SecondTextView.setText(DataTab3.Tab3Content[position]);
    holder.textView.setText(item.description);
    holder.expandableLayout.setInterpolator(item.interpolator);
    holder.expandableLayout.setExpanded(expandState.get(position));
    holder.expandableLayout.setListener(new ExpandableLayoutListenerAdapter() {
        @Override
        public void onPreOpen() {
            createRotateAnimator(holder.buttonLayout, 0f, 180f).start();
            expandState.put(position, true);
        }

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

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

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

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

public static class ViewHolder extends RecyclerView.ViewHolder {
    public TextView textView;
    public TextView SecondTextView;
    public RelativeLayout buttonLayout;
    public ExpandableRelativeLayout expandableLayout;

    public ViewHolder(View v) {
        super(v);
        SecondTextView = (TextView) v.findViewById(R.id.secondTextView);
        textView = (TextView) v.findViewById(R.id.textView);
        buttonLayout = (RelativeLayout) v.findViewById(R.id.button);
        expandableLayout = (ExpandableRelativeLayout) v.findViewById(R.id.expandableLayout);
    }
}

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

public class ItemModel {
public final String description;
public final TimeInterpolator interpolator;

public ItemModel(String description, TimeInterpolator interpolator) {
    this.description = description;
    this.interpolator = interpolator;
}

public static final String[] Tab3Content = {
        "• This is a simple example, no1\n" +
                "       Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.\n" +
                "\n" +
                "• Sample.sample.Sample.sample.\n" +
                "           Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample." +
                "\n" +
                "• Sample.sample.Sample.sample.\n" +
                "           Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.",

        "• This is a simple example, no2\n" +
                "       Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.\n" +
                "\n" +
                "• Sample.sample.Sample.sample.\n" +
                "           Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample." +
                "\n" +
                "• Sample.sample.Sample.sample.\n" +
                "           Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.",

        "• This is a simple example, no3\n" +
                "       Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.\n" +
                "\n" +
                "• Sample.sample.Sample.sample.\n" +
                "           Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample." +
                "\n" +
                "• Sample.sample.Sample.sample.\n" +
                "           Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.",

        "• This is a simple example, no4\n" +
                "       Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.\n" +
                "\n" +
                "• Sample.sample.Sample.sample.\n" +
                "           Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample." +
                "\n" +
                "• Sample.sample.Sample.sample.\n" +
                "           Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.",

        "• This is a simple example, no5\n" +
                "           Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.Sample.sample.",
};
}

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
xmlns:card_view="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/tools"
android:id="@+id/card_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
card_view:cardCornerRadius="2dp"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:layout_marginTop="5dp"
android:layout_marginBottom="5dp"
android:background="@color/md_white_1000"
app:cardElevation="5dp">

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <RelativeLayout
        android:id="@+id/button"
        android:layout_width="48dp"
        android:layout_height="48dp"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        android:layout_alignParentTop="true"
        android:gravity="center">

        <View
            android:layout_width="12dp"
            android:layout_height="12dp"
            android:background="@drawable/triangle" />
    </RelativeLayout>

    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_alignParentTop="true"
        android:layout_toLeftOf="@id/button"
        android:layout_toStartOf="@+id/button"
        android:padding="8dp"
        android:textColor="@color/green_teal"
        android:textSize="18sp" />

    <com.github.aakira.expandablelayout.ExpandableRelativeLayout
        android:id="@+id/expandableLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/textView"
        android:background="@color/md_white_1000"
        app:ael_expanded="false"
        app:ael_duration="400"
        app:ael_orientation="vertical">

        <TextView
            android:id="@+id/secondTextView"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:padding="5dp"
            android:textColor="@color/md_grey_900"
            android:textSize="18sp" />
    </com.github.aakira.expandablelayout.ExpandableRelativeLayout>
</RelativeLayout>

</android.support.v7.widget.CardView>

<com.github.aakira.expandablelayout.ExpandableRelativeLayout
            android:id="@+id/expandable_layout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/show_button"
            app:ael_duration="700"
            app:ael_expanded="false"
            app:ael_interpolator="bounce"
            app:ael_orientation="horizontal">

            <android.support.v7.widget.RecyclerView
                android:id="@+id/expandable_list"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content">
            </android.support.v7.widget.RecyclerView>

        </com.github.aakira.expandablelayout.ExpandableRelativeLayout>

<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>

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;
}

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));
  }
}

...
<com.github.aakira.expandablelayout.ExpandableLinearLayout
            android:id="@+id/layout_expandable_linear_layout"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_below="@+id/button_expandable_toggle"
            android:orientation="vertical"
            app:ael_duration="500"
            app:ael_expanded="@{viewModel.expandedCheckboxes}"
            app:ael_interpolator="bounce">
        ...
</com.github.aakira.expandablelayout.ExpandableLinearLayout>

<com.github.aakira.expandablelayout.ExpandableRelativeLayout
android:id="@+id/expandableLayout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_below="@id/header"
    android:background="@drawable/recycler_item_bg"
    app:ael_duration="400"
    app:ael_expanded="true"
    app:ael_orientation="vertical"

    >

    <ListView
        android:id="@+id/lv_routes_assigned"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:textColor="@color/fontColor"
        android:textSize="16sp"
        />
</com.github.aakira.expandablelayout.ExpandableRelativeLayout>

   ` playImageView = (ImageView) findViewById(R.id.scale_anim);
    elIV = (ExpandableRelativeLayout) findViewById(R.id.rarticle_el_iv);
    final ImageView ivPlay = (ImageView) findViewById(R.id.scale_play);

    globalLayoutListener = new ViewTreeObserver.OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {
            elIV.move(playImageView.getHeight(), 0, null);

           playImageView.getViewTreeObserver().removeOnGlobalLayoutListener(globalLayoutListener);
        }
    };
   playImageView.getViewTreeObserver().addOnGlobalLayoutListener(globalLayoutListener);

   playImageView.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            ImageAnimation ia = new ImageAnimation(ivPlay, ivPlay.getWidth(), (int) (1.25 * ivPlay.getWidth()), ivPlay.getHeight(), (int) (2 * ivPlay.getHeight()));
            ia.setDuration(2000);
            ia.setFillEnabled(true);
            ia.setFillAfter(true);
            ivPlay.startAnimation(ia);

            playImageView.setVisibility(View.GONE);
            elIV.expand(10000, new FastOutSlowInInterpolator());
        }
    });
}`

  <RelativeLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">

    <ImageView
        android:id="@+id/scale_anim"
        android:layout_width="60dp"
        android:layout_height="60dp"
        android:background="@drawable/play" />

    <com.github.aakira.expandablelayout.ExpandableRelativeLayout
        android:id="@+id/rarticle_el_iv"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <ImageView
            android:id="@+id/scale_play"
            android:layout_width="60dp"
            android:layout_height="60dp"
            android:background="@drawable/play" />

        <TextView
            android:id="@+id/rarticle_tv_article_iv"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/scale_play"
            android:text="There is an idea which generally people or in particular, the quacks have. They impart spirituality without any consideration of the receiver’s capacity. Even when the disciple is full of darkness, they start infusing Divine effulgence into him. The disciple, no doubt, improves by the force they impart, but the already existing darkness also goes on developing. If you add power to an object, its own ingredients will also develop. If the process is continued, the darkness swells and goes on becoming more and more solid. On the contrary, if the correct method is followed, and the darkness removed first, very good results will be obtained." />

    </com.github.aakira.expandablelayout.ExpandableRelativeLayout>

</RelativeLayout>

 <com.github.aakira.expandablelayout.ExpandableLinearLayout
        android:id="@+id/outer_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <Button
            android:id="@+id/inner_button"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Toggle inner"/>

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

        <com.github.aakira.expandablelayout.ExpandableLinearLayout
            android:id="@+id/inner_layout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <RelativeLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content">

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="100dp"
                    android:background="@color/colorAccent"
                    android:text="Nested"/>

            </RelativeLayout>

            <TextView
                android:layout_width="match_parent"
                android:layout_height="100dp"
                android:background="@color/colorPrimary"
                android:text="Nested 2"/>

        </com.github.aakira.expandablelayout.ExpandableLinearLayout>

        </RelativeLayout>
    </com.github.aakira.expandablelayout.ExpandableLinearLayout>

    <Button
        android:id="@+id/outer_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Toggle outer"/>

                    <LinearLayout
                            android:layout_width="match_parent"
                            android:layout_height="match_parent"
                            android:id="@+id/fee_container"
                            android:orientation="vertical"
                            />

        View layout = LayoutInflater.from(getApplicationContext())
                .inflate(R.layout.fee_item, mFeeContainer, false);

        TextView mPrice = (TextView) layout.findViewById(R.id.price);
        TextView mType = (TextView) layout.findViewById(R.id.type);

        mPrice.setText("price" + i);
        mType.setText("type" + i);

        mFeeContainer.addView(layout);
    }`