ColinTree ListView – Custom ListView

ColinTree ListView – Custom ListView


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Version: 11

Last Updated: 15-09-2019 0:08


Higher level ”ListView”, using extensions!

  • Update on 2019.6.5 (Version 11):
    • Added Translations (need platform supporting)
    • Fixed a Get method bug by @10MINT
    • Added ExtraButtonImage in ColinTreeListViewElement part of work done by @mkakozbeklem
    • Removed flag deprecated from all blocks
  • Update on 2018.7.27 (Version 10):
    • Added Get by @10MINT
    • Added LastLongClickedElement by @10MINT
    • Fixes label cannot click on some platforms
  • Update on 2018.3.10 (Version 9):
    • Fixed Error of Visiblility
    • Added ClearCache(path) & ClearAllCache() — still in test, it should works
  • Update on 2018.3.4 (Version 8)
    • Fixed extraButtonEnabled not implemented
    • Added support of direct(static) functions in ColinTreeListViewElement
  • Update on 2018.2.25 (Version 7) THANK YOU @User81 FOR SPONSORING:
    • Fixed that lastClickedElement starts from 0
    • Fixed that images that cached by a same path would act wired when one of them is clicked
    • Added a extra button
    • Added property handler for every single element of the listview -> useage
  • Update on 2018.2.11 (Version 6):
    • Added properties of text height (both main- & sub-text)
  • Update on 2018.1.31 (Version 5):
    • Added icon text related properties
    • Added lastClickedElement & lastClickedIcon
  • Update on 2017.12.30 (Version 4):
    • Adapted to all platforms ( , thunkable , etc.) There should not more NoSuchMethodError at anywhere.
  • Update on 2017.12.29 (version 3):
    • Adapted to new Appinventor (since 2017.12.27, Companion 2.45) (Fixed NoSuchMethodError)
    • Added properties related to image loading – AsyncImageLoad & CacheImage (that in a same path)
    • Added property – ScrollBottomAfterAdd

How to use

  1. Left a VerticalArrangement or a VerticalScrollArrangement, set the width and the height as you like. Here is the sample:
  2. Before do anything like add a element, initialize it first: Choose only one of the initialize method
  3. Set the list The ”set” method required a list, and the list elements can be:
    • Single text element without icon: The list element here is just a Text, and it will be shown in the element
    • Single text element without icon(same with the one above): A sub-list with only one item is also allowed when creating a Single text element without icon.
    • Single text element with icon: The sub-list with two item will be proceed as a Single text element with icon. The first item is the icon path, when the second one is the text here.
    • Double text element with icon: A list with at least three item, is being recognize as a Double text elemtnt with icon. And only the very first three items will be used as the parameters here. They are: icon(path), Main-text, and Sub-text

    The three types of list element can exist when a ColinTreeListView is created Sample code: Runtime screenshot (IconMultiParams checked):


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