Large gap forms between RecyclerView items when scrolling down

Question

I\'m making a ToDo list app, and while testing it, for some reason, a huge gap forms between the items whenever I try to scroll down. It always happens whenever I Drag and D

Answer 1

Just for the record: Since in my case we had to implement some "superfancy UI" with overlapping RecyclerView and blur effect toolbar, I had to get rid of clipToPadding="false" within RecyclerView-xml.

<android.support.v7.widget.RecyclerView
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:paddingTop="@dimen/height_toolbar"
  android:paddingBottom="@dimen/height_bottom_bar_container"
  //android:clipToPadding="false" <-- remove this flag!
  android:scrollbars="vertical"
/>

paddingTopand paddingBottom worked, but we replaced it with some GapViews(empty views, with height of paddingTop and paddingBottom)

Answer 2

You can try setting your Viewgroup holding the recyclerview to wrap content

Answer 3

i have this problem and i just use

android:layout_height="wrap_content"

for parent of every item.

Answer 4

Luksprog's answer to Gabriele Mariotti's answer works.

According to the doc

With the release 2.3.0 there is an exciting new feature to the LayoutManager API: auto-measurement! This allows a RecyclerView to size itself based on the size of its contents. >This means that previously unavailable scenarios, such as using WRAP_CONTENT >for a dimension of the RecyclerView, are now possible. You’ll find all built in LayoutManagers now support auto-measurement.

Due to this change, make sure to double check the layout parameters of your item views: previously ignored layout parameters (such as MATCH_PARENT in the scroll direction) will now be fully respected.

In your item layout you have to change:

android:layout_height="match_parent"

with

android:layout_height="wrap_content" 

Answer 5

change in Recycler view match_parent to wrap_content:

<android.support.v7.widget.RecyclerView
    android:id="@+id/recyclerView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"/>

Also change in item layout xml

Make parent layout height match_parent to wrap_content

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <TextView
            android:id="@+id/textView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
        />

Answer 6

Avoid taking the view in item layout with a container like this:

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android">

<data/>

<android.support.constraint.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

<TextView
        android:id="@+id/text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:minHeight="?android:listPreferredItemHeight"
        android:textAppearance="?android:attr/textAppearanceMedium" />
</android.support.constraint.ConstraintLayout>
</layout>

as in this case match_parent will do its work and the problem will still remain! Rather take it like this:

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android">

    <data/>

    <TextView
        android:id="@+id/text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:minHeight="?android:listPreferredItemHeight"
        android:textAppearance="?android:attr/textAppearanceMedium" />
</layout>

[Note: Above code has data binding attached to it, don't use <layout> & <data> tags if not using data binding]

Other than this, if you must use any view group containers, than take a look the height and width attributes in the container, and try change those from match_parent to wrap_content. That should resolve the issue. For more transparency, one can try giving background colours and see through it to identify actual problem.