I'm trying to add a ScrollView to hold a header and a RecyclerView.
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<RelativeLayout
android:id="#+id/profile"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="100dp"
android:background="?attr/colorPrimary">
<ImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:id="#+id/imageView"
android:adjustViewBounds="true"
android:cropToPadding="false" />
</RelativeLayout>
<ProgressBar
android:id="#+id/progressBar1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true" />
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentStart="true"
android:scrollbars="none"
android:layout_alignParentLeft="true" />
</RelativeLayout>
</ScrollView>
But I had 2 problems trying this:
The relative layout id/profile is disappearing. When I open the activity it appears for 1 sec and disappears.
The RecyclerView scroll is too slow.
any ideas?
By default, RecyclerView has its own scroll, which conflicts with your ScrollView. To fix it, change the the ScrollView to NestedScrollView.
Put recyclerView in NestedScrollView in XML
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_pracstice_loaction"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="none" />
</android.support.v4.widget.NestedScrollView>
And in Activity :
recyclerView.setNestedScrollingEnabled(false);
Surely, You will get what you want. This will solve your Recyclerview Scrolling Problem
Add below code in your activity it will solve your Automatically Scroll Problem.
recyclerView.setFocusable(false);
recylerview.setNestedScrollingEnabled(false);
please set this property of recylerview.
You can check out this project. Its not a Library. Its a Demo code...I Think what you are searching for
check out here https://github.com/kmshack/Android-ParallaxHeaderViewPager
change your scrollview to NestedScrollView.
The relative layout id/profile is disappearing. when I open the
activity it appears for 1 sec and disappear.
Your recyclerview is loading itens hover the relativeLayout, so, add this in your recyclerview:
android:layout_below="#+id/profile"
The recyclerview scroll is too slow.
Just add the code below in your activity:
recylerview.setNestedScrollingEnabled(false);
Related
In activity, I have TabLayout & FrameLayout for loading fragment. fragment contains RecyclerView. it works fine for first time only. but when I change tab and back to previous tab the RecyclerView not scrolling full.
Main Activity
<android.support.v4.widget.NestedScrollView
android:fillViewport="true"
android:layout_height="match_parent"
android:layout_width="match_parent">
<LinearLayout
android:layout_height="match_parent"
android:layout_width="match_parent"
android:orientation="vertical">
<android.support.design.widget.TabLayout
android:id="#+id/tabMain"
android:layout_height="wrap_content"
android:layout_width="match_parent" />
<FrameLayout
android:id="#+id/containerMain"
android:layout_height="match_parent"
android:layout_width="match_parent" />
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
Fragment
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView
android:id="#+id/rvMedia"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:nestedScrollingEnabled="false" />
</LinearLayout>
The recyclerView has a smooth scrolling by itself but when we need to put recyclerView within any scrollView it will not work like the below:
Layout XML
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</ScrollView>
</LinearLayout>
The solution for this is we need to used nestedScrollView instead of scrollview like the below
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v4.widget.NestedScrollView
android:id="#+id/nestedScrollView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:overScrollMode="never">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<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>
</LinearLayout>
The problem occurs when we use nestedScrollView and put recyclerView inside nestedScrollView is, it scrolls in various speed depending on gesture. The scrolling feature will not be smooth.
So to fix this issue all you have to do after setting your adapter is to add this line ViewCompat.setNestedScrollingEnabled(recyclerView, false);
This is not a good solution. Placing a RecyclerView inside a NestedScrollView, causes ALL elements of the RecyclerView’s adapter to be rendered, ths using alot of memory. This can be so slow in most devices with less memory.
This approach might also lead to disabling need scrolling, which will disable views recycling thus all items will be initialized at once.e.g. In a list with 1000 items. This will make the application lag. You can avoid it if you use pagination where you load a fixed number of items when the user scrolls down on the list.
Read more about pagination.
Pagination with RecyclerView – Etienne Lawlor – Medium
Android RecyclerView Pagination with Paging Library using MVVM ...
Paging library overview | Android Developers
I'm trying to build a BottomSheet that contains a RecyclerView in it. I used a NestedScrollView and set its behavior as "bottom_sheet_behavior". The first time the app run, it's popping up normally, but when I collapse the BottomSheet and select an item from the spinner, it popping up with a space below it.
This is just happening on android 8, not the other versions.
On the other hand, when I remove RecyclerView, it works normally.
<?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"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<com.toptoche.searchablespinnerlibrary.SearchableSpinner
android:id="#+id/spinner"
android:layout_width="200dp"
android:layout_height="40dp"
android:layout_gravity="center"
android:layout_marginTop="200dp"
android:background="#c9c5c5"
android:elevation="8dp"
android:entries="#array/seasons"
android:layoutDirection="rtl"
android:spinnerMode="dialog"
android:textAlignment="center"
android:textDirection="rtl" />
</LinearLayout>
<android.support.v4.widget.NestedScrollView
android:id="#+id/bottom_sheet"
android:layout_width="match_parent"
android:layout_height="300dp"
android:fillViewport="true"
android:background="#color/colorPrimary"
android:elevation="6dp"
app:layout_behavior="#string/bottom_sheet_behavior">
<android.support.v7.widget.RecyclerView
android:id="#+id/activity_Recycler"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
First run
After select an item from spinner
After a long effort finally found the problem. That was because of using this library ==> Searchable Spinner . I replaced it with simple spinner and it works fine!
Point:: Always use updated and supported libraries :|
Is it true or not ? i want to scroll on the listview too inside my activity by using nested scroll view. Please help. Thanks in advance
<android.support.v4.widget.NestedScrollView
android:id="#+id/login_form"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:id="#+id/insertkend_form"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/listAksesoris">
</ListView>
</ScrollView>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
It's work now, just remove scrollview and add in listview android:nestedScrollingEnabled="true".
I use the mode adjustResize, RecyclerView and EditText, when the keyboard appears, the window shrinks but the visible elements in the RecyclerView go down.
The structure of the layout looks like this:
<LinearLayout
android:orientation="vertical">
<android.support.v7.widget.RecyclerView />
<LinearLayout
android:orientation="vertical"
android:layout_gravity="bottom"/>
</LinearLayout>
I set setStackFromEnd to true, in LinearManager but it does not help.
Versions of libraries: 25.3.0
How can this unpleasant problem be avoided?
instead of using linear layout on top use Relative layout like following...
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:id="#+id/bottom_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="vertical"/>
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#id/bottom_view"/>
</RelativeLayout>
I am using NestedScrollView in tab layout and when I implemented RecyclerView in NestedScrollView 2 problems occur:
Toolbar is not hiding.
RecyclerView in not scrolling smoothly.
Here is my Code:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:fillViewport="true"
xmlns:android="http://schemas.android.com/apk/res/android">
<RelativeLayout
android:layout_width="match_parent"
android:background="#fff"
android:layout_height="wrap_content">
<android.support.v7.widget.RecyclerView
android:layout_below="#+id/toolbar"
android:id="#+id/recyclerView"
android:background="#fafafa"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true" />
<ProgressBar
android:id="#+id/progressBar1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true" />
</RelativeLayout>
</android.support.v4.widget.NestedScrollView>
use recylerView.setNestedScrollingEnabled(false); to make your scrolling smoother.
Create separate layout files for views and try. And include those into the list view.
<LinuearLayout ..>
<include layout="#layout/cv1"/>
<include layout="#layout/rv1"/>
<include layout="#layout/rv2"/>
<include layout="#layout/rv3"/>
</LinearLayout>
This is just a clue to you. I did solve similar issues long back in past. Please try experimenting with this clue.