B4A Library [Lib, Chargeable] Amir_RecyclerView

evbedp said:

i had a problem, i'm use recycler view for image slide when recycler onBind, position always in index 2... item count is 3. please help me

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maddy said:

Hey @Amir i am unable to filter the items in recyclerview actually i am binding recyclerview with Objects and i am trying to filer the list with the itemname provided in searchbar but the data is not updating in ui altough i am calling notifyadapteer.Here is attached code

B4X:

Sub modifydata(query As String)
    If rcyclrItems.Adapter=Null Then Return
    rvdata.Clear
    If query.Length=0 Then
        rvdata.AddAll(ItemList)
    Else
       
        'iDetails.rvdata.AddAll(iDetails.rcyclrItems.Utils.FilterSearchList("",iDetails.ItemList).Trim.SkipLowerCase.StartsWith(query))
        For i=0 To ItemList.Size-1
            Dim iData As ItemData
            iData.Initialize
            iData=ItemList1.Get(i)
            If iData.itemname.StartsWith(query) Then
                rvdata.Add(iData)
            End If
        Next
        rcyclrItems.Utils.FilterSearchList("CustomType",rvdata)
        Log("SAize is"&rvdata.Size)
       
   
    End If
        callnotifier
End Sub
public Sub callnotifier
    rcyclrItems.Adapter2.NotifyDataSetChanged
End Sub

Here idata is a custom type object like this
Type ItemData (itemno As String, itemname As String,qty As String,amount As String,Price As String)

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Sub modifydata(query As String)
    If rcyclrItems.Adapter=Null Then Return
    rvdata.Clear
    If query.Length=0 Then
        rvdata.AddAll(ItemList)
    Else
      
        rvdata.AddAll(rcyclrItems.Utils.FilterSearchList("itemname",ItemList).Trim.SkipLowerCase.StartsWith(query))
        Log("SAize is"&rvdata.Size)
      
    End If
        callnotifier
End Sub

wimpie3 said:

Next issue:

B4X:

onItemLongClick

also causes onItemClick to fire. I think you should be able to return true/false in the long click sub, but it's not a function...

Click to expand...

Private Sub RV_onBindViewHolder (Parent As Panel,Position As Int)
  Parent.Tag = Position
  Dim r As Reflector
  r.Target = Parent
  r.SetOnLongClickListener("RV_LongClick")
End Sub
Private Sub RV_LongClick (tag As Object) As Boolean
  Log(tag)
  Return False
End Sub

HAH said:

I already have xCustomlistview list, Can I use ARV with existing xCustomlistview?

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wimpie3 said:

I have discovered a bug in the parallax code example (Amir_RecyclerView HeaderParallax). Modify the following code:

B4X:

Sub Activity_Create(FirstTime As Boolean)
Recycler.Initializer("Amir").ListView.Build
Activity.AddView(Recycler,0,0,100%x,100%y)
Recycler.DividerHorizontal.Color(Colors.black).Size(0.5dip).Build

The last line causes an issue when you scroll... a strange line is floating around on the screen!

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Recycler.Initializer("Amir").ListView.Build
  Activity.AddView(Recycler,0,0,100%x,100%y)
  Recycler.DividerHorizontal.Color(Colors.black).Size(0.5dip).VisibilityProvider("RV").Build

Sub RV_DividerVisibility (Position As Int) As Boolean
  If Position=0 Then Return True Else Return False
End Sub

wimpie3 said:

I want to disable a finger scroll, and only let the user scroll with two buttons: "previous page" and "next page".

I've implemented this with recyclerView.LayoutFrozen=True. This disables the finger swipe.

When someone clicks on one of the buttons, I set LayoutFrozen to False, go to the next/previous page and freeze the layout again in the Sub recyclerView_onScrollStateChanged using

B4X:

If NewState=0 Then
    ' page scroll finished
    recyclerView.LayoutFrozen=True: ' disable scroll
End If

However, from time to time I get this error:

B4X:

java.lang.IllegalStateException: Do not setLayoutFrozen in layout or scroll

So my question is: am I overlooking something or is there another way to disable the finger scroll?

Click to expand...

RV.Listeners.AddOnItemTouchListener("RV")

Sub RV_onInterceptTouchEvent (Action As Int,X As Float,Y As Float,MotionEvent As Object) As Boolean 'Return true if you want disable touch
  Return True
End Sub

Sub RV_onInterceptTouchEvent (Action As Int,X As Float,Y As Float,MotionEvent As Object) As Boolean
  Dim jo As JavaObject = RV 
  jo.RunMethod("requestDisallowInterceptTouchEvent",Array(True))
  Return False
End Sub

alimanam3386 said:

Amir_RecyclerView_GooglePlay_Demo

Powered Just with Amir_RecyclerView and B4A !

Download the Demo

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alimanam3386 said:

New b4a library!

RecyclerView, an important part of the sdk and android for making a custom list with better Layout , animation , and fixed for large data set.

Amir_RecyclerView released new version that we call it AX_RecyclerView.

version 1.0.8 is last update for Amir_RecyclerView and we will work on AX_RecyclerView only in future.

RecyclerView Android X : https://developer.android.com/reference/androidx/recyclerview/widget/RecyclerView

"RecyclerView is part of the v7 support library which means you can use it on anything that has api 7 and up"

View attachment 72645


Advantages of using recyclerview instead listview:

• ViewHolder Pattern

​

In a ListView, it was recommended to use the ViewHolder pattern but it was never a compulsion. In case of RecyclerView, this is mandatory using the RecyclerView.ViewHolder class. This is one of the major differences between the ListView and the RecyclerView.​

​

• LayoutManager

​

This is another massive enhancement brought to the RecyclerView. In a ListView, the only type of view available is the vertical ListView. There is no official way to even implement a horizontal ListView.​

​

Now using a RecyclerView, we can have a:​

​

i) LinearLayoutManager - which supports both vertical and horizontal lists,​

ii) StaggeredLayoutManager - which supports Pinterest like staggered lists,​

iii) GridLayoutManager - which supports displaying grids as seen in Gallery apps.​

​

And the best thing is that we can do all these dynamically as we want.​

​

• Item Animator

​

ListViews are lacking in support of good animations, but the RecyclerView brings a whole new dimension to it. Using the RecyclerView.ItemAnimator class, animating the views becomes so much easy and intuitive.​

​

• Item Decoration

​

In case of ListViews, dynamically decorating items like adding borders or dividers was never easy. But in case of RecyclerView, the RecyclerView.ItemDecorator class gives huge control to the developers but makes things a bit more time consuming and complex.​

• OnItemTouchListener

​

Intercepting item clicks on a ListView was simple, thanks to its AdapterView.OnItemClickListener interface. But the RecyclerView gives much more power and control to its developers by the RecyclerView. OnItemTouchListener but it complicates things a bit for the developer.​

​

For more info:
https://developer.android.com/reference/android/support/v7/widget/RecyclerView

You can add plugins as library and connect it to Amir_RecyclerView using a line of code

Current Plugins :

• Amir_RVHeaderFooter
• Amir_RVToolbarParallax ( new )
• Amir_RVEmptyView
• Amir_RVCardSlider
• Amir_RVCarousel
• Amir_RVDiscrete
• Amir_RVExpandable
• Amir_RVFanLayout
• Amir_RVFeature
• Amir_RVItemPicker ( deprecated )
• Amir_RVLayoutAnimation
• Amir_RVMultiSelection
• Amir_RVParallax
• Amir_RVRefreshLayout
• Amir_RVShimmer
• Amir_RVSkidRight
• Amir_RVSwipeCards
• Amir_RVVegaLayout
• Amir_RVViewPager
• Amir_RVEchelon ( NEW )
• Amir_WearableRecyclerView ( NEW )
• Amir_RVDragItem
• Amir_RVStickyHeader ( NEW )
• Amir_RVAnimators ( NEW )
• AX_RVSelection ( AndroidX )
• AX_RVItemPicker ( AndroidX )
• AX_RVPageIndicator ( New AndroidX )
• Amir_RVChipsLayoutManager ( New )
• AX_RVSwipeLayout 1.00 ( New AndroidX )
• AX_RVHeaderParallax
• Amir_RVCardViewAdapter

Demo and samples how to use :

Download the DEMO.apk ( updated in 28th of July 2019 )
Download Demo Source Code

Current version of Amir_RecyclerView : 1.1

Be sure to check the apk sample before purchasing.

You can have this fantastic library just with $25 ( only Amir_RecyclerView )
Full packages include all plugins only $35

Short documentations attached , special thanks to fredo

Pay​

After your purchase please send me an email with your purchase detail ( alimanam@gmail.com )

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Ashaz said:

i purchased amir recycleview.
now android play store sample gives below error.


--------------------
B4A Version: 9.50
Java Version: 8
Parsing code. (0.03s)
Building folders structure. (0.16s)
Compiling code. (0.05s)

ObfuscatorMap.txt file created in Objects folder.
Compiling layouts code. (0.00s)
Organizing libraries. (0.00s)
(Android Support Library)
Generating R file. (1.39s)
Compiling generated Java code. Error
javac 1.8.0_191
src\com\recyclerview\googleplaysample\itemrecyclerview.java:725: error: package androidx.recyclerview.widget does not exist
_rv.setObject((androidx.recyclerview.widget.RecyclerView)(group2.Get(index2)));}
^
Note: src\com\recyclerview\googleplaysample\starter.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
1 error

--------------------

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Ashaz said:

i updated , ,now getting below error .

ObfuscatorMap.txt file created in Objects folder.
Compiling layouts code. (0.00s)
Organizing libraries. (0.00s)
(AndroidX SDK)
Generating R file. Error
h:\mohib\setups\b4a\android sdk\android-sdk\tools\..\extras\b4a_remote\androidx\core\core\1.2.0\unpacked-core-1.2.0\res\values\values.xml:163: error: Attribute "fontVariationSettings" has already been defined

Plz. guide.

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Ashaz said:

Error
h:\mohib\setups\b4a\android sdk\android-sdk\tools\..\extras\b4a_remote\androidx\core\core\1.2.0\unpacked-core-1.2.0\res\values\values.xml:163: error: Attribute "fontVariationSettings" has already been defined

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asales said:

You can see the same error here:

"fontVariationSettings" has already been defined

Hi Any one can help me to fix the below message ? My target SDK version is 29. I have downloaded all recommended files from B4A sdk manager. B4A Version: 9.50 Java Version: 8 Parsing code. (0.05s) Building folders structure. (0.02s) Compiling code. (0.08s) Compiling layouts code...

www.b4x.com

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asales said:

Did you jetified the library?
Search to "RecyclerView" in the forum to get similar thread and a possible answer to your issue.

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