How to force recyclerview to have dynamic height changing items?

Question

Actually I'm trying to use recyclerview as a viewpager which is working fine by the help of PagerSnapHelper() class . But now the problem is how can I force recyclerview to change item heights dynamically and not show white space . Now when I try to load drawable pictures of two different sizes i.e a small and a bigger at first the smaller one is having correct size but when I scroll to next and then first some white space is shown below the imageView.You can see aforementioned problems in the given pictures.

XML:

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

Recyclerview Items:

<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/recyclerImgView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
 />
</FrameLayout>

Adapter Code:

@Override
public void onBindViewHolder(ViewHolder holder, int position) {
    Glide.with(ctx).load(pics.get(position)).into(holder.imageView);
}

Activity Code:

rView.setLayoutManager(new LinearLayoutManager(getApplicationContext(), LinearLayoutManager.HORIZONTAL,false));
    rView.setAdapter(adp);
    SnapHelper snapHelper = new PagerSnapHelper();
    snapHelper.attachToRecyclerView(rView);

score 0 · Answer 1 · 2018-04-20T13:39:29.033

0

you can change image view width and height like below code..

<ImageView

android:id="@+id/recyclerImgView" android:layout_width="wrap_content" android:layout_height="wrap_content" />

and recycler view change height like below code..

<android.support.v7.widget.RecyclerView
android:id="@+id/rView"
android:layout_width="@dimen/_100sdp"
android:layout_height="@dimen/_100sdp"
/>

add this below dependency into app level gradle file and give size is same all the device like below ..

  implementation 'com.intuit.sdp:sdp-android:1.0.4'

edited Apr 20 '18 at 13:39

answered Apr 20 '18 at 13:26

thanks for your time sir but it's not changing anything – Srinivas Nahak Apr 20 '18 at 13:28
then give fixed height and width to image view . – Apr 20 '18 at 13:29
also give image view height and width match_parent .it show full but image strach. – Apr 20 '18 at 13:31
Actually I wanna change the view's height dynamically so that every image can be shown by it's original size . If I'll set any fixed size then my motto won't be accomplished. – Srinivas Nahak Apr 20 '18 at 13:35
add below dependency into app level gradle file and define height and width this format and i change put in my code.. implementation 'com.intuit.sdp:sdp-android:1.0.4' . give size is same as all device.. – Apr 20 '18 at 13:36
android:layout_width="@dimen/_100sdp" android:layout_height="@dimen/_100sdp" – Apr 20 '18 at 13:38

HARSHIT GUPTA · Answer 2 · 2018-04-20T13:30:28.700

0

Change your Recyclerview Items with this code by adding scaleType in your image view

<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="150dp">

 <ImageView 
 android:id="@+id/recyclerImgView"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:scaleType="fitXY"/>
</FrameLayout>

edited Apr 20 '18 at 13:30

answered Apr 20 '18 at 13:27

HARSHIT GUPTA

74
6

no I can't give scaleType to fitXY it won't look good for all images – Srinivas Nahak Apr 20 '18 at 13:29
Then you can use centerCrop – HARSHIT GUPTA Apr 20 '18 at 13:31

How to force recyclerview to have dynamic height changing items?

2 Answers2