I have a background image with a long width which I want to be in back of a Recyclerview with 8 item in it(Recyclerview). This is possible only with a horizontal-scrollview which I coded below but Is there any way to not use horizontal scrollview and have a same result?
<HorizontalScrollView
android:id="#+id/HSV"
android:layout_width="wrap_content"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="#drawable/back"
android:paddingLeft="2.5dp"
android:paddingRight="2.5dp"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
</HorizontalScrollView>
with the above code I have the desired output, but as I remove the HorizontalScrollView The image is compressing in width and loose its shape I want the image scroll as I scroll the recyclerview
That is The picture I want:
![in Background is the aforementioned image and this eight Item are in recycler view and I want as the items finishing the background image is finishing too.
]1
Design like this in layout.And pass layout of card in image to adapter in Android.Set background to Constraint layout ore Recyclerview. When you have Recyclerview no need to add Horizontal Scrollview. Just pass Layout manager as Horizontal
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:background="#color/secondaryColor"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"/>
</androidx.constraintlayout.widget.ConstraintLayout>idget.ConstraintLayout>
I wonder if I have got your query right, so you want your RecyclerView to be scrolling horizontally. I would suggest to use the LinearLayoutManager for the same, so that you can pass the Scrolling constant to Horizontal in the arguments of LinearLayoutManager.
To read about it, please go ahead and read it LinearLayoutManager
And when you get it, just do it like this in you Java Class.
RecyclerView.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, true));
I have this youtube link for you too, if you don't get it what you want. Here you will get the full demo of how to do it, and achieve it. Horizontal RecyclerView
I hope that will answer your query. Thanks :)
Related
I want to achieve this design shown below. All I can think of is having a LinearLayout as parent layout with android:orientation="vertical" and add listViews with horizontal scroll dynamically inside the linear layout, but it seems very inefficient solution.
What can be the best possible approach to achieve this UI? Any suggestion will be highly appreciated.
If I were you, I will create a RecyclerView witch adds the rows of the Textview and another recyclerview.
<?xml version="1.0" encoding="utf-8"?>
<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:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:id="#+id/tvTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/rvCards"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
The second recyclerview will contains columns of those cards. Of course the second recyclerview will contain the LinearLayoutManager like that:
LinearLayoutManager linearLayoutManager
= new LinearLayoutManager(requireContext(), LinearLayoutManager.HORIZONTAL, false);
I'm not sure if that solution will be the most efficient one. I would like to read more comments to find a better solution, if it exists.
I'm facing a tricky situation here and I don't know how to solve this problem.
In my project I have a custom BottomSheetDialogFragment and in the layout a FrameLayout to add or replace Fragments.
Now I have a Fragment and inside I have a RecyclerView with the height:="wrap_content" because I want the BottomSheetDialogFragment only use the necessary space. Everything looks great, the problem appear when I put another view inside of the same layout and set the RecyclerView bellow or above of that view.
The RecyclerView ignores the size of the other view (or views) and always grows to the max screen size, and then it's no possible to see a few elements and even scroll.
I saw a solution, some developers are suggesting to add paddingBottom equals to the height of the view. But in my case doesn't works because I want to have a dynamic solution.
Above I'll share a few images of the problem and GitHub Repository with a sample.
Thanks for your attention!
I've manage to do what you need just need to use this as your fragment_sample.xml:
<LinearLayout 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"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView
android:id="#+id/rclItems"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
app:layoutManager="android.support.v7.widget.LinearLayoutManager"/>
<Button
android:id="#+id/btnAddMoreItems"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/rclItems"
android:text="#string/add_1_item"/>
</LinearLayout>
Explanation
Using a LinearLayout gives you the ability to work with weight, and the vertical orientation allows you to place an item below the other. The weight on the recyclerview will increase the height of it as needed until filling the screen. The next item you add would be added to the recyclerview but you'll need to scroll the list to see it
The android developers blog says that :-
The scrolling containers in your bottom sheet must support nested scrolling .
Try changing your fragment_sample.xml as below to make the recyclerview scroll working and to make the add button persistent.
<?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"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:id="#+id/next"
android:layout_above="#id/btnAddMoreItems"
android:layout_height="wrap_content">
<android.support.v7.widget.RecyclerView
android:id="#+id/rclItems"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
</android.support.v4.widget.NestedScrollView>
<Button
android:id="#+id/btnAddMoreItems"
android:layout_width="match_parent"
android:layout_alignParentBottom="true"
android:layout_height="wrap_content"
android:text="#string/add_1_item"/>
</RelativeLayout>
Note: making bottomsheet layout a child view of CoordinatorLayout will allow you to get the implement BottomSheetBehavior and recieve its transitions callbacks .
Here are the xml files
A Fragment with a Recyclerview:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/list_photos"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ui.photos.PhotosFragment"
tools:listItem="#layout/card_photo">
</android.support.v7.widget.RecyclerView>
Layout for each item in the above Recyclerview
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/card_photo"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/photo"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:adjustViewBounds="true"
android:scaleType="fitCenter"
tools:src="#drawable/placeholder_photo_item" />
</android.support.v7.widget.CardView>
And it looks like this:
As you can see, it won't load fast and smooth as I scroll. It stops scrolling at some items.
Also when I scroll up, it directly jumps to the top item.
Below is the perfect smooth and fast scrolling effect of a RecyclerView, which I am able to achieve by making the Recyclerview's item's (here CardView) height to "match_parent".
But this is not how I want the list to look like. The list should have images of variable length with no blank spaces between them.
I am using Glide to load the images, and adding a placeholder through Glide fixed it:
GlideApp.with(mContext)
.load(url)
.placeholder(R.color.placeholder)
.into(holder.photo);
Now the RecyclerView scrolls smoothly and won't jump to the first item on up-scroll.
Although it's been fixed I really do not know why RecyclerView behaves in this way.
I want to implement two RecyclerView with different layout in single activity. The above RecyclerView should scroll vertical and the one below should scroll horizontal. But when I run the app, only either one RecyclerView is displayed. If first view is displayed then it works properly and scrolls vertical, while second RecyclerView is missing. And if second one is displayed then it scrolls vertical when it should do horizontal scroll and the first RecyclerView is missing.
Here is what i want. Source: Github,CardView-Recyclerview-Picasso
Here is my layout
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/colorBackgroundLight"
android:smoothScrollbar="true"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.RecyclerView
android:id="#+id/CategoriesRecyclerView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
<android.support.v7.widget.RecyclerView
android:id="#+id/videoRecyclerView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="130dp"
android:layout_below="#+id/CategoriesRecyclerView"/>
</RelativeLayout>
</android.support.v4.widget.NestedScrollView>
You may directly use the 2 Recycler Views without NestedScrollView.
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.RecyclerView
android:id="#+id/CategoriesRecyclerView"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<android.support.v7.widget.RecyclerView
android:id="#+id/videoRecyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="130dp"
android:layout_below="#+id/CategoriesRecyclerView"/>
</RelativeLayout>
And in your CategoriesRecyclerView whose height is wrap_content, use setAutoMeasureEnabled(true) on the Layout manager used for the recyler view.
If you want to scroll the horizontal scrollview full upside on page scroll then use scrollview otherwise you can do without scrollview. Also to achieve your layout just give the horizontal recyclerview fixed height and then you can see both recyclerview .
I need to display a staggered grid within a linear layout.
For that I have used a StaggeredGridLayoutManager on a RecyclerView from android.support.v7.widget. The problem is that StaggeredGridLayoutManager doesn't support wrap_content.
There are other questions addressing the issue, but they are concerned with linear layouts, not staggered grids:
Not able to add empty view below Recyclerview
How do I make WRAP_CONTENT work on a RecyclerView
As far as I understand I could derive StaggeredGridLayoutManager and implement onMeasure. Is there a way do to that without recalculating the positions and sizes of the children myself? When looking at the StaggeredGridLayoutManager.java source, I can see that it uses ScrollbarHelper to approximate the size of the scrolling content. Is there a way to reuse that?
The problem is that when RecyclerView is drawn, it calculates all the remaining size to itself before drawing the next elements and don't recalculate after the other elements are drawn, leaving them outside the screen.
There is an easy fix for this problem: The trick is to draw all other elements first, and leave RecyclerView for last. Use a relative layout and put the RecyclerView last on the XML layout file. Since with relative layout you can put each element wherever you want independently of the order on the XML file, you will draw all elements before RecyclerView and this will make it calculate the accurate remaining space and wrap_content will work properly.
Example to add a paginagion bar below the RecyclerView:
<?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="match_parent"
android:padding="16dp"
tools:context=".MainActivity"
>
<LinearLayout
android:id="#+id/pagination_btns"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_alignParentBottom="true"> //HERE YOU ALIGN THIS ELEMENT TO THE BOTTOM OF THE PARENT
<Button
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:text="#string/previous_btn_label"/>
<Space
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"/>
<Button
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:text="#string/next_btn_label"/>
</LinearLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/items_recycler_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scrollbars="vertical"
android:layout_above="#id/pagination_btns"/> //HERE YOU ALIGN THE RECYCLERVIEW ABOVE THE PAGINATION BAR
</RelativeLayout>
I ended-up using a custom control for this, inspired by:
https://github.com/expilu/AntipodalWall/blob/master/library/src/com/antipodalwall/AntipodalWallLayout.java