<com.wzbos.android.widget.filter.FilterGroupView android:layout_width="match_parent"  android:layout_height="wrap_content"  android:background="#ffffffff"  android:divider="@drawable/divider"  android:orientation="horizontal"  android:padding="10dp"  android:showDividers="middle">   <com.wzbos.android.widget.filter.FilterView  android:id="@+id/area_filter"  android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" app:expandedViewHeight="300dp" app:text="Area" /> <com.wzbos.android.widget.filter.FilterView android:id="@+id/price_filter" android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" app:expandedViewHeight="300dp" app:text="Price" /> <com.wzbos.android.widget.filter.FilterView android:id="@+id/sort_filter" android:layout_width="0dp" android:layout_height="match_parent" android:layout_weight="1" app:collapseIcon="@mipmap/ic_filter_normal" app:expandedIcon="@mipmap/ic_filter_selected" app:expandedViewHeight="300dp" app:text="Sort" /> </com.wzbos.android.widget.filter.FilterGroupView>

FilterView filterView = findViewById(R.id.area_filter); filterView.setExpandedView(view);