B4A Library [B4X] [XUI] xCustomListView - cross platform CustomListView

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Update: As several other libraries depend on xCustomListView library, it is no longer recommended to use the code module. Use the library instead. There are several extension classes that add more features to xCLV. They are listed at the end of this post.

Video tutorial:


xCustomListView is an implementation of CustomListView based on XUI library. It provides all the features of the original CustomListView and it is compatible with B4A, B4J and B4i.

SS-2017-09-27_11.15.59.png
SS-2017-09-27_11.16.26.png
SS-2017-09-27_11.16.50.png


SS-2017-12-27_16.20.44.png


This class replaces the platform specific CustomListView classes. It is recommended to use this one for new projects.

Change log:

- V1.74 - Fixes a bug with JumpToItem (B4i).
- V1.72 (B4A only) - Fixes an issue where the designer typeface is not set when calling AddTextItem.
- V1.71 (B4i only) - Fixes an issue related to iOS 9- devices.
- V1.70 - ItemLongClick event (right click in B4J).
- V1.68 - Fixes a bug with ResizeItem / ReplaceAt and lists with single item.
- PressedColor is now a public field.
- Setting the PressedColor to a transparent color disables the item click color animation. This is useful if you want to replace it with your own implementation.
- V1.66 - Improves the text measurement of text items in B4J.
- V1.65 - Fixes an issue in B4i only where the CSBuilder colors were ignored.
- V1.64 - Fixes an issue with ScrollToItem / JumpToItem in B4i.
- V1.63 - Bug fixes, Refresh method to force VisibleRangeChanged to be raised, several private subs are now public, designer property to hide the scroll bar.
- V1.54 - Allows using CSBuilder with AddTextItem in B4i (it is also supported in B4A).
- V1.53 - Fixes an issue with VisibleRangeChanged event and CLV.Clear
- V1.52 - Fixes an issue with CLV.RemoveAt
- V1.51 - Fixes an issue which caused the LastVisibleIndex and FirstVisibleIndex properties to be hidden.

- V1.50 - Large update.
- V1.20 - Adds support for horizontal orientation.
Set it in the designer.
Add items like this:
B4X: 
clv2.Add(CreateListItem($"Item #${i}"$, 160dip, clv2.AsView.Height), $"Item #${i}"$)
'Instead of
'clv2.Add(CreateListItem($"Item #${i}"$, clv2.AsView.Width, 160dip), $"Item #${i}"$)

Don't use the source code. Use the preinstalled xCustomListView library instead.
Libraries such as XUI Views depend on the library and will not work properly with the module.

Extension classes:

CLVExpandable (B4X) - Allows expanding and collapsing items: https://www.b4x.com/android/forum/t...g-or-collapsing-xcustomlistview-items.106148/
CLVSwipe (B4A and B4i) - Adds swipe actions and swipe to refresh feature: https://www.b4x.com/android/forum/threads/98252/#content
CLVHeader - (B4X) - Adds a nice animated header to the list: https://www.b4x.com/android/forum/t...ted-header-to-xcustomlistview.105343/#content
CLVSelections (B4X) - Adds more selection modes: https://www.b4x.com/android/forum/t...d-selection-modes-for-xcustomlistview.114364/
CLVNested (B4A) - Allows nesting a CLV inside a CLV item: https://www.b4x.com/android/forum/threads/clvnested-allows-nesting-clvs.107742/#content
PreoptimizedCLV (B4X) - Lazy loading + fast scroll extension: https://www.b4x.com/android/forum/t...loading-extension-for-xcustomlistview.115289/

 

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  • CustomListView.bas
    19.8 KB · Views: 2,237
  • CLVExample.zip
    20.2 KB · Views: 2,971
Last edited:
Click to expand...
swChef

swChef

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Update: Erel extended the original (top post) to support Horizontal as of v1.20.

I extended the CustomListView.bas to allow Horizontal scrolling (B4A, but not B4I,J as of yet). Adding here in case others need it. Attached.

Erel, the sample includes nested CLV's. But the nested ones do not scroll. Is there a way to solve that? (I posted this question to the Q forum).

Edit: V1.1 added. Cleaned up and fixed to allow horizontal scrolling of items for the horizontal control that is inside the vertical list
Edit2: Tried to add v1.1 to this post but the forum isn't allowing it (More Options... causes a site error). It's in post#12.
Edit3: Removed the old attachment, superceded by #12.
 
Last edited:
M

Mahares

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I am getting this error when I run Erel's above example with B4A 7.3. XUI lib is installed in additional lib folder. and the line that gets hilighted in the xCustomListView v1.01 Class is: DefaultTextBackgroundColor = mBase.Color

*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Class not found: anywheresoftware.b4a.samples.customlistview.customlistview, trying: b4a.example.customlistview
Class not found: anywheresoftware.b4a.samples.customlistview.customlistview, trying: b4a.example.customlistview
customlistview_designercreateview (B4A line: 51)
DefaultTextBackgroundColor = mBase.Color
java.lang.NoSuchFieldException: mSolidColors
at java.lang.Class.getDeclaredField(Class.java:939)
at anywheresoftware.b4a.objects.B4XViewWrapper.getColor(B4XViewWrapper.java:263)
at b4a.example.customlistview._designercreateview(customlistview.java:494)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:186)
at anywheresoftware.b4a.objects.CustomViewWrapper.AfterDesignerScript(CustomViewWrapper.java:67)
at anywheresoftware.b4a.keywords.LayoutBuilder.loadLayout(LayoutBuilder.java:162)
at anywheresoftware.b4a.objects.ActivityWrapper.LoadLayout(ActivityWrapper.java:209)
at b4a.example.main._activity_create(main.java:370)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:186)
at b4a.example.main.afterFirstLayout(main.java:102)
at b4a.example.main.access$000(main.java:17)
at b4a.example.main$WaitForLayout.run(main.java:80)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:6939)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1404)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1199)
 
M

Mahares

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Erel said:
What is the device OS version?
Click to expand...
1. It does not work on OS 5.1.1, but works on OS 4.2.2 and 7.0.

2. When it works, the log shows:
Class not found: anywheresoftware.b4a.samples.customlistview.customlistview, trying: b4a.example.customlistview
How do you get rid of this log

3. Also, I am not getting the top right screenshot look in the above example, only the top left screenshot.
Thank you
 
DonManfred

DonManfred

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Mahares said:
2. When it works, the log shows:
Class not found: anywheresoftware.b4a.samples.customlistview.customlistview, trying: b4a.example.customlistview
How do you get rid of this log
Click to expand...
Try to remove the CLV from your layout and place a new one giving the same name. Dont forget to save the Layout ;-)
 
M

Mahares

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Erel said:
Please try it.
Click to expand...
After the XUI update to 1.1, it now works on OS 5.1.1.
But, if you can find a way to completely eliminate the the annoying below message, without having to ignore it or without having to resort to @DonManfred 's trick, that will make the code a lot cleaner.
Class not found: anywheresoftware.b4a.samples.customlistview.customlistview, trying: b4a.example3.customlistview
 
Misterbates

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Mahares said:
But, if you can find a way to completely eliminate the the annoying below message, without having to ignore it or without having to resort to @DonManfred 's trick, that will make the code a lot cleaner.
Class not found: anywheresoftware.b4a.samples.customlistview.customlistview, trying: b4a.example3.customlistview
Click to expand...

It's not "a trick".

The issue may be coming from a class reference inside your designer layout, which in turn comes from adding a previous version of CLV to your layout then upgrading the CLV custom view. To remove the message, remove CLV from your designer layout, re-add (and update designer properties to be what they were previously) then save the layout. The layout will then reference the new version of the class and the message will be gone.
 
swChef

swChef

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Edit: V1.1 added. Cleaned up and fixed to allow horizontal scrolling of items for the horizontal control that is inside the vertical list
Tried to add to original post but the forum isn't allowing it

V1.2 Added. Incorporated Erel's CustomListView 1.02 updates.
 

Attachments

  • CLVxVandH_v1.1.zip
    20 KB · Views: 1,679
  • CLVxVandH_v1.2.zip
    20 KB · Views: 2,021
Last edited:
Rusty

Rusty

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Can you add EditTexts, and other views to this control?
If so, how would one do this? (example?)
Thanks,
Rusty
 
J

JLS

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Hi everybody,

For some reason, it is not possible to set the "Divider Color" to Transparent. It always appears with a solid color.

Is this a bug?
 
Reviewnow

Reviewnow

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This uses the desigerproperty in side the customlistview class

B4X: 
'Change the following and it should work
#DesignerProperty: Key: DividerColor, DisplayName: Divider Color, FieldType: Color, DefaultValue: 0xFFD9D7DE

'TO
#DesignerProperty: Key: DividerColor, DisplayName: Divider Color, FieldType: Color, DefaultValue: 0x00FFFF00
 
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