Questions tagged [android-viewholder]
A ViewHolder object stores each of the component views inside the tag field of the Layout, so you can immediately access them without the need to look them up repeatedly. The ViewHolder pattern is often used in Android applications to improve performances of view access.
android-viewholder
1,057
questions
0
votes
0
answers
29
views
How to achieve drag item from one category to another category by using two different recyclerview
How to implement dragging one item from category related stickers to another category when having 2 different recyclerView and different viewHolder. refer below animation
I tried to add dragListerner ...
- 136
0
votes
0
answers
30
views
How to load youtube video url on my viewholder, from my dummy data
Can someone help me, how to load video on my viewholder ? it is possible or not ? if possible how to load
interface DummyMusicDataSource {
fun getMusicData(context: Context): List<Music>
}
...
- 13
0
votes
2
answers
40
views
How to use object animator for background color of items in RecyclerView?
I have a RecyclerView where some items should have their background color change animatedly from pink to transparent for 6 seconds when they appear on the screen.
But the problem is that in addition ...
- 45
0
votes
1
answer
139
views
Why Nested Class is better than Inner Class when I create ViewHolder in RecyclerView
I heard that inner class use more memory than nested class in Kotlin.
And somebody said it is bad for using inner Class in RecyclerView(ViewHolder).
But, It was hard to use onClickListener without ...
- 11
1
vote
1
answer
70
views
ViewHolder not recognising textview on binding using Kotlin
I am following a tutorial online due to this being my first time programming in kotlin, i just wanted to bind the text that i will get from a table in database to a ViewModel, i started with an ...
0
votes
2
answers
90
views
Make transparent part of the view pass over touches and keep touches on a visible part
There is views container (blue) which is set for the almost full width of the screen. Sometimes views which are displayed inside this container require not to have the full width of the container - ...
- 588
0
votes
0
answers
38
views
Android Recycler View with Multiple ViewHolders, Drag and Drop, and Persistent Item Positions
I'm working on an Android app where I need to implement a RecyclerView with multiple ViewHolders. These ViewHolders represent different types of items with varying layouts. Additionally, I want to ...
0
votes
0
answers
55
views
NullPointerException on boolean androidx.recyclerview.widget.RecyclerView$ViewHolder.shouldIgnore() when trying to add Chips to a fragment
I want to make a screen where you can filter based on chips. When adding the chips I get the following error:
java.lang.NullPointerException: Attempt to invoke virtual method 'boolean androidx....
0
votes
1
answer
28
views
(Kotlin) RecyclerView button change outside ImageView
I have an adapter class that structures a RecyclerView. I want this RecyclerView to have a button that updates an ImageView outside of the RecyclerView. This code updates the images inside the ...
- 1
0
votes
1
answer
86
views
Refactoring RecyclerView with multi ViewHolder from ButterKnife using ViewBinding
Wanting to switch to version 8.0 of AGP for my Android project I had to refactor a lot of java classes where the developer before me used ButterKnife to bind variables to layout elements. The last ...
- 97
0
votes
1
answer
505
views
Attempt to invoke virtual method 'boolean android.os.HandlerThread.isAlive()' on a null object reference
I'm working on a document sharing app & when I use 'search' functionality, the app crashes
I think there's some issue in PDFViewer(https://i.sstatic.net/qVaEF.png)
PDFViewer works on dashboard but ...
- 11
0
votes
1
answer
42
views
Two inner classes within a RecyclerView class to display different layouts
I am trying to declare two inner classes within a RecyclerView class using Kotlin. Currently, when I try this like below, I get an error message on both classes. What do I need to change to make this ...
- 1,392
0
votes
1
answer
39
views
How to Fit Recyler view items according to layout size in Android
I am using recycler to show 8 items in the list. However the number 8 is fixed.
I want to resize the items according to the size of the parent layout in which recycler view is given.
That means all 8 ...
- 125
0
votes
1
answer
65
views
Android RecyclerView.Adapter not updating
I've got My RecycletView.Adapter which has a field of Type ArrayList to set my Holder (inner class).
If I try to update my Adapter from the Adapter class itself (OtherAdapter in my example) by setting ...
0
votes
1
answer
23
views
Optimizing code structure for ViewHolder members - Kotlin
I have a ViewHolder that looks something like this:
class ViewHolder(
itemView: View,
var mSettingsRadioButton: RadioButton = itemView.findViewById(...),
var mSettingsCheckBox: ...
- 163