Hi,
I created a class to manage a list with checkboxes (but not only, you can use it for any kind of list with rows). The layout is highly customizable and you can even extend a clicked item with extra content. You can rearrange the items programmatically or manually (drag & drop).
Tutorials: How they do #1, How they do #3
v1.1: I added the ExtendItem function and an option to check the box when items are added
v1.2: I fixed the width problem (in a container like TabHost, the width property returns -1, so we have to use a different method to get the SV width) and, in the demo, a click on the extended item collapses now its content.
v1.3: I added a new function to add items without checkbox (AddItemNoChkbx) so you can use this class as a ListView replacement;
I changed the way it colors the selected item (now it complies to the default Android theme);
I added an option to color differently the extended item.
v1.4: I optimized the code a little bit and I added three functions:
AddCustomItem (adds your own layout to the list);
AdjustBitmap (resizes the bitmap to fit the given dimensions);
GetFirstText (returns the first label text found for the given ID).
v1.5: I simplified and improved the management of extended items (I also fixed a bug). Unfortunately, that could break existing code.
Inspired by the class CustomListView, I added a parameter to Initialize: DividerHeight (if you want to put a colored divider between items) and several functions:
- NumberOfItems
- getHeight
- JumpToPosition
- JumpToItem
- CollapseItem
- HasExtraContent
- ExtendedItemID
v1.6:
Now, you can define the color of checked items and the background color (transparent by default).
I added two (very fast) functions:
- JumpToView (scrolls the list to the given view)
- FindPanelContaining (returns the panel containing the given view)
I added another example.
v2.0:
I added more than 10 new functions (MoveItem, RemoveItemAt, SwapItems, SortItems, ReplaceItem, ApplyColors, CreateTextList, etc.). See post #21 for complete list;
I changed the ID type (formerly Int) to Object (that shouldn't break the existing code);
I added the Drag & Drop feature;
I optimized JumpToPosition (a lot quicker now);
I fixed a bug with colors.
v2.1:
I added functions to filter the list;
I added CreateIntegerList to ease the sorting and filtering of integer values;
Now you can change the item height in ReplaceItem.
v2.2:
I fixed a bug (BackgroundColor was not applied to new items)
I added new functions:
- FindPanelWithID(ID As Object) As Object
- SetOnPaintListener(SubName As String)
- Repaint(pnlItem As Panel)
I renamed ApplyColors to RepaintAllItems
v2.21:
I changed an incorrect declaration in the demo #1 and #2.
The class is now compatible with the obfuscation option.
v2.22:
The class no longer displays warnings with B4A v2.7x.
All examples are now compatible with the obfuscation option.
Complete list of functions here
Fred
PS: you need the Reflection Lib
I created a class to manage a list with checkboxes (but not only, you can use it for any kind of list with rows). The layout is highly customizable and you can even extend a clicked item with extra content. You can rearrange the items programmatically or manually (drag & drop).
Tutorials: How they do #1, How they do #3
v1.1: I added the ExtendItem function and an option to check the box when items are added
v1.2: I fixed the width problem (in a container like TabHost, the width property returns -1, so we have to use a different method to get the SV width) and, in the demo, a click on the extended item collapses now its content.
v1.3: I added a new function to add items without checkbox (AddItemNoChkbx) so you can use this class as a ListView replacement;
I changed the way it colors the selected item (now it complies to the default Android theme);
I added an option to color differently the extended item.
v1.4: I optimized the code a little bit and I added three functions:
AddCustomItem (adds your own layout to the list);
AdjustBitmap (resizes the bitmap to fit the given dimensions);
GetFirstText (returns the first label text found for the given ID).
v1.5: I simplified and improved the management of extended items (I also fixed a bug). Unfortunately, that could break existing code.
Inspired by the class CustomListView, I added a parameter to Initialize: DividerHeight (if you want to put a colored divider between items) and several functions:
- NumberOfItems
- getHeight
- JumpToPosition
- JumpToItem
- CollapseItem
- HasExtraContent
- ExtendedItemID
v1.6:
Now, you can define the color of checked items and the background color (transparent by default).
I added two (very fast) functions:
- JumpToView (scrolls the list to the given view)
- FindPanelContaining (returns the panel containing the given view)
I added another example.
v2.0:
I added more than 10 new functions (MoveItem, RemoveItemAt, SwapItems, SortItems, ReplaceItem, ApplyColors, CreateTextList, etc.). See post #21 for complete list;
I changed the ID type (formerly Int) to Object (that shouldn't break the existing code);
I added the Drag & Drop feature;
I optimized JumpToPosition (a lot quicker now);
I fixed a bug with colors.
v2.1:
I added functions to filter the list;
I added CreateIntegerList to ease the sorting and filtering of integer values;
Now you can change the item height in ReplaceItem.
v2.2:
I fixed a bug (BackgroundColor was not applied to new items)
I added new functions:
- FindPanelWithID(ID As Object) As Object
- SetOnPaintListener(SubName As String)
- Repaint(pnlItem As Panel)
I renamed ApplyColors to RepaintAllItems
v2.21:
I changed an incorrect declaration in the demo #1 and #2.
The class is now compatible with the obfuscation option.
v2.22:
The class no longer displays warnings with B4A v2.7x.
All examples are now compatible with the obfuscation option.
Complete list of functions here
Fred
PS: you need the Reflection Lib
Last edited:
