Develop Reference

How to make the text above recylcerview scroll when when you scroll recylerview

I have a layout which is have title textview and recylerview below it.
It all works good. But I am trying to make the whole thing scrollable. Meaning that if I scroll down the rcylerview when new items are added, I want the title textview to scroll up (disappears) as if it is part of the recylerview
Here is my xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#null"
android:text="Near me"
android:textColor="#color/White"
android:textSize="21sp"
android:textStyle="bold" />
<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
android:id="#+id/swipeContainer"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rvVideos"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
</LinearLayout>
I know that I can fake it so item 1 of the recylerview has a different layout which is the title text but I am hoping there is a better option so I don't have to deal with edge cases of number of items and manipulating positions

you need to wrap both the textview and recycler view in a NestedScrollView
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.widget.SwipeRefreshLayout
android:id="#+id/swipe_refresh_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/textview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Textview"
android:layout_marginTop="10dp"/>
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.v4.widget.SwipeRefreshLayout>
</android.support.design.widget.CoordinatorLayout>
I hope this helps...Cheers

How to create a scrollable template using fragments in Android

I am trying to achieve something like following
I am trying to build an activity joining 3 fragments. Top fragment contains a search bar (EditText), middle fragment has a Banner Slider (ViewPager), and the bottom fragment contains a GridView loaded with n number of items dynamically. I want to make the middle & bottom fragments scrollable vertically while the top one being fixed. But the Grid view is scrolling within itself while the height is set to wrap_content.
If the GridView is given a fixed height, it is working as expected. But I cannot give it a fixed height as its content is dynamically loaded.
Home Activity:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:background="#color/colorLightGray"
tools:context=".HomeActivity">
<ScrollView
android:id="#+id/scrollableContents"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
android:padding="5dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<FrameLayout
android:id="#+id/fragmentContainerSearchBar"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</FrameLayout>
<FrameLayout
android:id="#+id/fragmentContainerSlider"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</FrameLayout>
<FrameLayout
android:id="#+id/fragmentContainerPopularItems"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</FrameLayout>
</LinearLayout>
</ScrollView>
</RelativeLayout>
SearchBarFragment:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context=".fragments.HomeSearchBarFragment">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingHorizontal="2dp"
android:paddingVertical="2dp"
android:focusable="true"
android:focusableInTouchMode="true">
<EditText
android:id="#+id/etSearchBoxHome"
android:inputType="text"
android:layout_width="match_parent"
android:layout_height="40dp"
android:drawableRight="#drawable/ic_search_24dp"
android:drawablePadding="5dp"
android:background="#drawable/et_search_home"
android:paddingLeft="15dp"
android:paddingRight="15dp"
android:layout_marginTop="0dp"
android:clickable="true"
android:cursorVisible="true"
android:focusable="true"
android:textSize="14dp"
android:hint="#string/home_searchbox_hint"/>
</RelativeLayout>
</FrameLayout>
Banner Slider Fragment:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_margin="2dp"
tools:context=".fragments.HomePromoSliderFragment">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="2dp"
card_view:cardBackgroundColor="#color/colorWhite"
card_view:cardCornerRadius="3dp">
<android.support.v4.view.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v4.view.ViewPager>
</android.support.v7.widget.CardView>
</RelativeLayout>
Popular Items Fragment:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context=".fragments.HomePopularItemsFragment">
<GridView
android:id="#+id/gvPopularItems"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:columnWidth="150dp"
android:gravity="center"
android:numColumns="auto_fit"
android:stretchMode="columnWidth">
</GridView>
</RelativeLayout>

You can take nestedScrollView outside of ViewPager and Gridview.
Set the recycler View to setNestedScrollingEnable(false).
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v4.view.ViewPager>
<GridView
android:layout_width="match_parent"
android:layout_height="match_parent">
</GridView>
</android.support.v4.widget.NestedScrollView>

Try using `Constraint Layout` for whole layout, `autocomplete text view` for search bar, `viewpager` for banners, recycler view for showing the loaded items.
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<AutoCompleteTextView
android:id="#+id/search"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent"/>
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent">
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent">
</android.support.v7.widget.RecyclerView>
</android.support.constraint.ConstraintLayout>
** Set the margins as per the UI
Set your layout manager as Gridlayout manager for recycler view as below:
recyclerview.layoutManager = GridLayoutManager(this, 2, OrientationHelper.VERTICAL, false)
Hope it will work fine. Let me know if you find any issues.

How to Set a Button at a fixed position even when respective Activity has ScrollView

Is there a way to use some non scrollable view when the activity has ScrollView component?
I want that my button behaves similar to the button in the question below, I want it fixed on the bottom of the UI too:
how to set a button at a fixed location on the bottom of UI?
Here's my layout code:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent ">
<FrameLayout
android:id="#+id/map_frameview"
android:layout_width="match_parent"
android:layout_height="200dp">
</FrameLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="20dp">
</LinearLayout>
</LinearLayout>
</ScrollView>
Thanks in advance!

The link you have attached in your question shows how you can do it. You can use RelativeLayout for this. The idea is, you need to tell a button to stay on bottom of the screen & tell the scrollview to stay above the Button along with it's scrollable content like:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:id="#+id/btnMy"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"/>
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/btnMy">
<LinearLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#id/btnMy"
android:orientation="vertical">
<FrameLayout
android:id="#+id/map_frameview"
android:layout_width="match_parent"
android:layout_height="200dp">
</FrameLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="20dp">
</LinearLayout>
</LinearLayout>
</ScrollView>
</RelativeLayout>

The Button Bar Overlapping with recycler view issue

I am trying to add a button bar at the bottom of a screen which already contains a recycler view. When i do so the button bar overlaps the last item of the recycler view and if i try to click on the button bar the item under it in the recycler view gets clicked. Here is my xml:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.example.owaisnizami.navigation.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_main"/>
<LinearLayout
android:id="#+id/buttonBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
style="#android:style/ButtonBar"
android:background="#F44336"
android:layout_gravity="bottom|end">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="30sp"
android:layout_gravity="center"
android:text="Advertisements Here"
android:textColor="#FFFFFF"/>
</LinearLayout>
</android.support.design.widget.CoordinatorLayout>
content_main contains the recycler view and here is its xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:showIn="#layout/activity_main"
tools:context=".MainActivity">
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="vertical"/>
</RelativeLayout>

I have had and have now solved this problem and the solution is not as complicated as I was thinking.
In the layout in content_main that holds your RecyclerView, set
android:layout_marginBottom="<height-of-your-button-bar>"
Set this for the RelativeLayout which holds your RecyclerView, not your RecyclerView itself.
Now, when you scroll to the bottom of your list it will continue to scroll so that the last item is not hidden by the button bar.
Looking at your layout, you may need to identify the height of your button bar so that you can set this margin accordingly.
Hope this helps.
Full disclosure, I used this solution with a NestedScrollView instead of a RelativeLayout though don't know why it wouldn't work - also, if you switch to a NestedScrollView your CollapsableToolbar will be able to collapse.

Move your button bar layout inside your content_main as below
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:showIn="#layout/activity_main"
tools:context=".MainActivity">
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/buttonBar"
android:scrollbars="vertical"/>
<LinearLayout
android:id="#+id/buttonBar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
style="#android:style/ButtonBar"
android:background="#F44336"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="30sp"
android:layout_gravity="center"
android:text="Advertisements Here"
android:textColor="#FFFFFF"/>
</LinearLayout>
</RelativeLayout>
This way you can be sure that recyclerView ends before button bar layout

Android: How to display two fragments with RecyclerView in one screen

I have two fragments, each with its own respective RecyclerView list.
The RecyclerView from each of the fragments may contain many items. So, scrolling will mostly be necessary.
My problem is, how do I combine and display these two fragments into one screen using ScrollView, but at the same time, making the scrolling of the RecyclerViews behave as normally (non-sticky, follows the entire screen's scroll).
Thanks.
EDIT:
My layout file
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.easyuni.courserecommender.ResultsActivity">
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<include
android:id="#+id/toolbar"
layout="#layout/toolbar" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_below="#+id/toolbar">
<FrameLayout
android:id="#+id/fragment_container_results_career"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
<View
android:id="#+id/divider"
android:layout_width="fill_parent"
android:layout_height="1dp"
android:layout_below="#+id/fragment_container_results_career"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="#color/divider" />
<FrameLayout
android:id="#+id/fragment_container_results_courses"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>
</RelativeLayout>
<android.support.design.widget.NavigationView
android:id="#+id/navigation_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:itemIconTint="#333"
app:itemTextColor="#333" />
</android.support.v4.widget.DrawerLayout>
</RelativeLayout>
Screenshot:
(Notice the RecyclerView at the top and bottom scrolls individually)
https://drive.google.com/file/d/0B-glHmJbVcwiVU41WVRHU3g2bkE/view

You can do like this one -
In your activity's layout file, you should have two framelayout for containing your two fragment.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="#+id/first_fragment_container"
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="0dp">
</FrameLayout>
<FrameLayout
android:id="#+id/second_fragment_container"
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="0dp">
</FrameLayout>
</LinearLayout>
Then in your Activity's onCreate() method, you can use FragmentManager class to add Fragment to the FrameLayout.
getSupportFragmentManager().beginTransaction().add(R.id.first_fragment_container, new YourFirstFragment()).commit();
getSupportFragmentManager().beginTransaction().add(R.id.second_fragment_container, new YourSecondFragment()).commit();