epoxy | Android library for building complex screens | RecyclerView library
kandi X-RAY | epoxy Summary
kandi X-RAY | epoxy Summary
Epoxy is an Android library for building complex screens in a RecyclerView. Models are automatically generated from custom views or databinding layouts via annotation processing. These models are then used in an EpoxyController to declare what items to show in the RecyclerView. This abstracts the boilerplate of view holders, diffing items and binding payload changes, item types, item ids, span counts, and more, in order to simplify building screens with multiple view types. Additionally, Epoxy adds support for saving view state and automatic diffing of item changes. We developed Epoxy at Airbnb to simplify the process of working with RecyclerViews, and to add the missing functionality we needed. We now use Epoxy for most of the main screens in our app and it has improved our developer experience greatly.
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Top functions reviewed by kandi - BETA
- Returns the offsets of the items in the RecyclerView
- Checks to see if a row is in first row
- Check if the item is in the last row
- Calculate position details of a RecyclerView
- Override method to set the visibility of a child view
- Get the total height of the view
- Get the total width of the view
- Removes duplicates from the list of models which have been removed
- Find the position of a duplicate model in the list of models
- Initializes this RecyclerView
- Resets all operations
- Sets the current data to be rebuilt
- Called when a result is changed
- Enables debugging support
- Runs the interceptors
- Compares two string attributes for equality
- Sets the models
- This method is called when the activity is created
- Compares two SimpleEpoxyModel objects
- Checks if two models are equals
- Override method to be called when the item is selected
- Builds the models
- Returns a controller helper instance for the given EpoxyController class
- Override this method to do the actual draw on child view
- Adds a new epoxyController to this controller
- Performs a drag operation
epoxy Key Features
epoxy Examples and Code Snippets
Community Discussions
Trending Discussions on epoxy
QUESTION
This problem has been occurring for a couple months now with any project that uses complicated sets of equations (such as for composite mechanics analysis or thrust/fluid flow analysis). Simple calculations, iterative methods, and Numpy matrices seem to work fine on their own though. And just to be sure, I have tried completely uninstalling and reinstalling Python and Pycharm, but the same problem persists.
For the past couple months, any code that incorporates more complex mathematics, such as those described above, will output different values despite all input values and calculations being constant. The different codes have no means of variation or randomness. I've noticed these incorrect outputs usually occur within arrays/matrices, and I can tell the output values are incorrect because the expected numbers are instead absurdly large.
For example, an element within a matrix is expected to be 5.197e+7, but instead, the code outputs 3.322e+257 for that same element. However, upon running the code a second time, the code produces an output of 2.822e+204 for the exact same element. Only upon the third run does the code output the correct value for that element, which is 5.197e+7. This process can take anywhere from 1 to 15 separate runs for the same, unchanging code in order to output the correct value.
Another interesting aspect is that the calculations I am coding usually require multiple iterations of said code. However, even though I am resetting the arrays that temporarily save all values (other than final values that no longer affect the calculations), whatever is causing these "errors is being carried through the code until the end of the iterations. To my understanding, this shouldn't be the case since, at the end of an iteration, the code is setting all values, other than the known initial values, to 0 and recalculating. This would mean that the code is continuously making the same error.
Below are some examples of the program's expected output vs actual outputs.
Expected Output for First Iteration
...ANSWER
Answered 2022-Apr-16 at 01:55I don't know if it's the cause of your problem, but your code has six calls to np.empty
. I don't see any later initialization of these arrays.
np.empty
causes the array to not be initialized, and the memory will contain random garbage. Try replace those with np.zeros
and see if you get better results.
QUESTION
I have a project where I programmatically add custom map markers to a Maps activity. When a user clicks on a marker, a BottomSheetDialog comes up from the bottom of the screen, and contains information about the custom map marker. One of the key pieces of information is a video that will play. The problem is that the MediaController for the VideoView doesnt hover above the video, but is behind the BottomSheetDialog. It is in the correct place on the screen, but behind both the BottomSheetDialog and the VideoView. I am using EpoxyRecyclerView to add the VideoView, MediaController and various TextView to the BottomSheetDialog.
Function that creates the BottomSheetDialog:
...ANSWER
Answered 2022-Mar-17 at 15:01The below version still works OK, but I completely solved the issue and removed all problems by using ExoPlayer, a third party library. I removed my basic VideoView and replaced it with a ExoPlayerVideoView, and the app now works with zero issues.
I managed to fix this by adding a FrameLayout to the layout file for my VideoView:
QUESTION
I am trying to pass params
in the URL to a React component, but doing so gives errors.
These are the errors:
ANSWER
Answered 2022-Feb-05 at 20:01Instances of params are deprecated with a react-router v6.
React-Router v6 video 1: https://www.youtube.com/watch?v=k2Zk5cbiZhg&t=502s
This page explains update from React Router 5.1 to latest.
QUESTION
I am trying to create a menu using @szhsin/react-menu
. I am getting an error that element
is undefined. componentDidMount
has not run yet (Nothing in the Console Log). I would have thought my if (this.state.Categories == null)
would catch before AddMenu
is ever called.
ANSWER
Answered 2021-Nov-16 at 21:29this.state.Categories is undefined not null. You should try if(!this.state.Categories) instead of if(this.state.Categories == null)
QUESTION
I'm currently using the Epoxy library
instead of RecyclerView
.
However, since Epoxy
is built on the basis of RecyclerView
, let's just call it RecyclerView
.
Problem 1 . (Image 1 & Image 2)
When i return to another screen after entering a value in the
EditText
of theRecyclerView item
, the entered data is moved randomly.
Problem 2 . (Image 3)
After adding enough
items
to be scrollable, i also enter values into theEditText
. And if i scroll down and come back, the data is moved to a random location.
Please tell me what is the reason and what is the proper solution.
...ANSWER
Answered 2021-Nov-16 at 16:57Make sure you're overriding getItemViewType
, getItemId
and getItemCount
properly.
QUESTION
I switched from a recyclerview to using an epoxy list controler to display the results of a web response in my application. My response is handled in the right way and is transfered in my model class. Unfortunately after I received the response I got an error. The error looks like this:
...ANSWER
Answered 2021-Oct-18 at 22:32The solution in my case was to delete:
//implementation "androidx.paging:paging-compose:1.0.0-alpha14"
Now it is working!
QUESTION
I'm using the Epoxy library
on Android
.
What I'm curious about is why the parameter
of the lambda expression
doesn't get an error when the type doesn't match.
The listener
is a lambda expression
that takes an Int type
as a parameter.
But listener(addDetailClicked)
works normally.
Shouldn't it be listener(Int)
? or listener({ i -> addDetailClicked(i) })
.
Actually, I don't know why it works even after I write the code.
How is this possible?
Model
...ANSWER
Answered 2021-Oct-18 at 20:36I believe you missed the fact that EpoxyRoutineModel_
contains setters for data types found in EpoxyRoutineModel
. For example, EpoxyRoutineModel.curPos
is of type Int
, so EpoxyRoutineModel_.curPos()
is a function declared as:
QUESTION
I came across the Epoxy library
while looking for information about RecyclerView
.
Epoxy
is a library that makes RecyclerView
easier to use.
I haven't applied it to my app yet, but I think it will be easier if I apply it.
Because the RecyclerView I use is based on two view types
, and both items are dynamically added/removed
frequently (DiffUitl
is also used).
However, while reading the description of the Epoxy library in Git
,
I came across the following:
Additionally, Epoxy adds support for saving view state and automatic diffing of item changes.
I'm curious as to what automatic diffing
you're talking about here works based on.
Is it DiffUtil
internally or simply notifyDatasetChanged()
?
If it uses DiffUtil
then I'm going to use Epoxy
or I'll consider it.
ANSWER
Answered 2021-Oct-08 at 22:25or simply notifyDatasetChanged()?
They are not using notifyDatasetChanged()
as per the documentation:
Epoxy's automatic diffing to reduce the overhead, while also efficiently only updating the views that changed.
Is it DiffUtil internally
DiffUtil
is used for the EpoxyController
class, but not for EpoxyAdapter
class, the documentation says:
The Android Support Library class DiffUtil is used for diffing in EpoxyController. For legacy reasons, the older EpoxyAdapter uses a custom solution for diffing.
So, As you still designing your app, I expect that you'll be using EpoxyController
rather than the legacy EpoxyAdapter
; and therefore, DiffUtil
is already utilized.
If it uses DiffUtil then I'm going to use Epoxy or I'll consider it
It's up to you; using libraries in general has pros and cons in terms of continuity, security, limitations, complexity .. etc.
QUESTION
I got an build fail when I´m trying to run my application. Thats my error:
...ANSWER
Answered 2021-Oct-08 at 13:45It is kotlin safeargs plugin bug. Try to change androidx.navigation.safeargs.kotlin
to androidx.navigation.safeargs
QUESTION
Given source and target dataframes in Pandas, I need to update a column in the target dataframe by an amount specified in a column of the source dataframe, for every match on a key column.
In the example below, the source and target dataframes are RecetteDF
and InventaireDF
, respectively. The key column common to both is Codes interne
. Quantite Reserver
in the target has to be incremented with values from Quantite requise
from the source on matching key.
I've made it work, but it's really not optimal.
So far my function looks like this:
...ANSWER
Answered 2021-Sep-24 at 06:54You can use pandas.merge
to pull Quantite requise
in from RecetteDF
whenever you have a match. The merge should be done using left
, so that we preserve rows of InventaireDF
even when there is no match. Here is some code that should work:
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