Menu
It is work without NestedScrollView but when I used that scroll to position not working with RecyclerView
Below is xml code;
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/co_ordinate_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/light_gray">
<android.support.v4.widget.NestedScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/dimen_55"
android:fillViewport="true">
<LinearLayout
android:id="@+id/scrollView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:descendantFocusability="blocksDescendants"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:focusableInTouchMode="true"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/img_resturant"
android:layout_width="match_parent"
android:layout_height="150dp"
android:background="@drawable/products_offers"
android:scaleType="fitXY" />
<LinearLayout
android:id="@+id/llTransparent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/dimen_20"
android:focusableInTouchMode="true"
android:orientation="vertical">
<TextView
android:id="@+id/tvRestaurantName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="@dimen/dimen_15"
android:textColor="@color/white"
android:textSize="@dimen/sp_20" />
<TextView
android:id="@+id/tvAddress"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_gravity="center"
android:layout_toRightOf="@+id/ivTime"
android:textColor="@color/white"
android:textSize="@dimen/sp_14" />
<TextView
android:id="@+id/tvTime"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_gravity="center"
android:textColor="@color/white"
android:textSize="@dimen/sp_14" />
<View
android:layout_width="match_parent"
android:layout_height="0.5dp"
android:layout_marginLeft="@dimen/_20sdp"
android:layout_marginRight="@dimen/_20sdp"
android:layout_marginTop="@dimen/_10sdp"
android:background="@color/white" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="35dp"
android:layout_marginBottom="@dimen/_10sdp"
android:layout_marginTop="@dimen/_3sdp"
android:orientation="horizontal"
android:weightSum="1">
<RelativeLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="0.5">
<TextView
android:id="@+id/tvRatting"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_centerVertical="true"
android:textColor="@color/white"
android:textSize="@dimen/sp_19" />
</RelativeLayout>
<View
android:layout_width="0.5dp"
android:layout_height="match_parent"
android:layout_marginBottom="@dimen/dimen_5"
android:layout_marginTop="@dimen/dimen_5"
android:background="@color/white" />
<RelativeLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.5">
<ImageView
android:id="@+id/ivCall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_centerVertical="true"
android:layout_marginBottom="@dimen/dimen_5"
android:layout_marginTop="@dimen/dimen_5"
android:src="@drawable/call" />
</RelativeLayout>
</LinearLayout>
</LinearLayout>
</RelativeLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="@dimen/_15sdp"
android:layout_marginRight="@dimen/_15sdp"
android:layout_marginTop="@dimen/dimen_20"
android:background="@color/white"
android:elevation="@dimen/_3sdp"
android:orientation="vertical"
android:visibility="gone">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="@dimen/_10sdp"
android:layout_marginTop="@dimen/_10sdp"
android:gravity="center_horizontal"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@color/black"
android:textSize="@dimen/sp_20"
android:textStyle="bold" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/_10sdp"
android:textColor="@color/gray"
android:textSize="@dimen/sp_13" />
<!--<TextView-->
<!--android:id="@+id/tvAddress"-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content"-->
<!--android:layout_marginTop="@dimen/_5sdp"-->
<!--android:textColor="@color/black"-->
<!--android:textSize="@dimen/sp_15" />-->
</LinearLayout>
</LinearLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="@dimen/dimen_13"
android:layout_marginTop="@dimen/dimen_13"
android:gravity="center"
android:visibility="gone">
<ImageView
android:id="@+id/ivTime"
android:layout_width="20dp"
android:layout_height="20dp"
android:layout_centerVertical="true"
android:src="@drawable/clock_1"
android:tint="#F15d36" />
</RelativeLayout>
</LinearLayout>
<android.support.v7.widget.RecyclerView
android:id="@+id/rvSpecialMenu"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="gone"
android:nestedScrollingEnabled="false"
android:layout_marginTop="@dimen/dimen_5" />
<android.support.v7.widget.RecyclerView
android:id="@+id/rvMenu"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/dimen_5"
android:focusable="false"
android:nestedScrollingEnabled="false"
android:background="@color/white"
android:paddingBottom="@dimen/dimen_50" />
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
<RelativeLayout
android:id="@+id/rlCartBtn"
android:layout_width="match_parent"
android:layout_height="@dimen/dimen_40"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_gravity="bottom|center"
android:background="@color/darkorange"
android:paddingLeft="@dimen/dimen_5"
android:paddingRight="@dimen/dimen_5">
<TextView
android:id="@+id/tvCartDesc"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:textColor="@color/white"
android:textSize="@dimen/sp_18"
android:textStyle="bold" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_toLeftOf="@+id/ivCartIcon"
android:paddingRight="@dimen/dimen_50"
android:text="View Cart"
android:textColor="@color/white"
android:textSize="@dimen/sp_18"
android:textStyle="bold" />
<ImageView
android:id="@+id/ivCartIcon"
android:layout_width="30dp"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_marginRight="@dimen/dimen_5"
android:src="@drawable/shopping_cart"
android:tint="@color/white" />
</RelativeLayout>
<RelativeLayout
android:id="@+id/rlMenuOrangeIcon"
android:layout_width="@dimen/dimen_40"
android:layout_height="@dimen/dimen_30"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_gravity="bottom|center"
android:layout_marginBottom="@dimen/dimen_50"
android:layout_marginRight="@dimen/_15sdp"
android:background="@color/gray">
<ImageView
android:id="@+id/ivMenu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic__menu_restaurant" />
</RelativeLayout>
</android.support.design.widget.CoordinatorLayout>
and below is code for scroll to position;
@Override
public void Item(final int pos, View view) {
final Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
rvMenu.scrollToPosition(pos);
Log.e("pos",""+pos);
}
}, 100);
dialog.dismiss();
}
210
NestedScrollView is just like ScrollView, but it supports acting as both a nested scrolling parent and child. In your case you have to define your own scrolling behaviour.
The problem can be solved by moving the SliverAppBar into the CustomScrollView and not use the NestedScrollView at all.
NestedScrollView is used when there is a need for a scrolling view inside another scrolling view.
Need to scroll ScrollView by getting top position of RecyclerView's child :
recyclerView.post(() -> {
float y = recyclerView.getY() + recyclerView.getChildAt(selectedPosition).getY();
scrollView.smoothScrollTo(0, (int) y);
});
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