Runtime Error while loading ColinTreeListView (MediaUtil getBitmapDrawableAsync)

[Sunita_Gupta1 (Sunita Gupta)]

No worries at all — I completely understand
Take your time and focus on what you need to do first.

I’ll wait for whenever you’re free. If possible, please fix it properly with the same structure and package, and share the updated AIX file when it’s ready. That would really help a lot, and I truly appreciate the effort you’re putting into this.

Thanks again for your support and willingness to help the community
Looking forward to it whenever you get time.

[Ibrahim_Jamar (DevSphere </>)]

@Sunita_Gupta1

same structure and package

@Sunita_Gupta1

share the updated AIX file when it’s ready.

cn.colintree.aix.colintreelistview.aix (38.6 KB)

Documentation

🏃‍♂️ ColinTreeListView

An extension for MIT App Inventor 2.

Specifications

---

Package: cn.colintree.aix.colintreelistview
Size: 38.55 KB
Minimum API Level: 14
Updated On: 2026-01-28T18:30:00Z
Help URL: Learn more
Built & documented using: FAST v5.4.0

---

Multi-Components

1. ColinTreeListView
2. ColinTreeListViewElement

ColinTreeListView

Component for ColinTreeListView

Events:

ColinTreeListView has total 12 events.

1. ElementClick

Event triggered when an element is clicked.

Parameter	Type
elementIndex	number

2. ElementLongClick

Event triggered when an element is long clicked.

Parameter	Type
elementIndex	number

3. ElementTouchDown

Event triggered when an element touch down occurs.

Parameter	Type
elementIndex	number

4. ElementTouchUp

Event triggered when an element touch up occurs.

Parameter	Type
elementIndex	number

5. IconClick

Event triggered when an icon is clicked.

Parameter	Type
elementIndex	number

6. IconLongClick

Event triggered when an icon is long clicked.

Parameter	Type
elementIndex	number

7. IconTouchDown

Event triggered when an icon touch down occurs.

Parameter	Type
elementIndex	number

8. IconTouchUp

Event triggered when an icon touch up occurs.

Parameter	Type
elementIndex	number

9. ExtraButtonClick

Event triggered when the extra button is clicked.

Parameter	Type
elementIndex	number

10. ExtraButtonLongClick

Event triggered when the extra button is long clicked.

Parameter	Type
elementIndex	number

11. ExtraButtonTouchDown

Event triggered when the extra button touch down occurs.

Parameter	Type
elementIndex	number

12. ExtraButtonTouchUp

Event triggered when the extra button touch up occurs.

Parameter	Type
elementIndex	number

Methods:

ColinTreeListView has total 16 methods.

1. Initialize

Initialize the list view with a VerticalArrangement.

Parameter	Type
verticalArrangement	component

2. InitializeScroll

Initialize the list view with a VerticalScrollArrangement.

Parameter	Type
verticalScrollArrangement	component

3. Clear

Clears all elements from the list view.

4. Set

Sets the entire list view content from a list of elements.

Parameter	Type
list	list

5. Get

Returns the current list of elements.

• Return type: list

6. AddElement

Adds a new element to the list view.

Parameter	Type
element	list

7. AddEmptyElement

Adds an empty element to the list view.

8. SetElement

Sets the content of an existing element.

Parameter	Type
elementIndex	number
element	list

9. SetElementText

Sets the text of an element.

Parameter	Type
elementIndex	number
text	text

10. SetElementMainText

Sets the main text of an element (for 3-parameter elements).

Parameter	Type
elementIndex	number
mainText	text

11. SetElementSubText

Sets the sub text of an element (for 3-parameter elements).

Parameter	Type
elementIndex	number
subText	text

12. SetElementIcon

Sets the icon of an element.

Parameter	Type
elementIndex	number
path	text

13. GetElement

Gets the content of an element as a list.

• Return type: list

Parameter	Type
elementIndex	number

14. RemoveElement

Removes an element from the list view.

Parameter	Type
elementIndex	number

15. ClearAllCache

Clears all cached images from memory.

16. ClearCache

Clears a specific cached image from memory.

Parameter	Type
path	text

Designer:

ColinTreeListView has total 37 designer properties.

1. ElementHeight

• Input type: non_negative_integer
• Default value: 57

2. TouchDownColor

• Input type: color
• Default value: 000000

3. WidthBeforeIcon

• Input type: non_negative_integer
• Default value: 7

4. WidthAfterIcon

• Input type: non_negative_integer
• Default value: 5

5. IconWidth

• Input type: non_negative_integer
• Default value: 40

6. IconHeight

• Input type: non_negative_integer
• Default value: 40

7. IconShape

• Input type: button_shape
• Default value: 1

8. IconBgColor

• Input type: color
• Default value: 000000

9. IconTextColor

• Input type: color
• Default value: 000000

10. IconTextFontSize

• Input type: non_negative_float
• Default value: 24

11. IconTextFontBold

• Input type: boolean
• Default value: True

12. IconMultiParams

• Input type: boolean
• Default value: False

13. IconPaddings

• Input type: non_negative_integer
• Default value: 0

14. TextColor

• Input type: color
• Default value: 000000

15. TextFontSize

• Input type: non_negative_float
• Default value: 14

16. TextFontBold

• Input type: boolean
• Default value: False

17. TextHeight

• Input type: non_negative_integer
• Default value: 18

18. SubTextColor

• Input type: color
• Default value: CCCCCC

19. SubTextFontSize

• Input type: non_negative_float
• Default value: 12

20. SubTextFontBold

• Input type: boolean
• Default value: False

21. SubTextHeight

• Input type: non_negative_integer
• Default value: 18

22. WidthBeforeExtraButton

• Input type: non_negative_integer
• Default value: 2

23. ExtraButtonText

• Input type: text

24. ExtraButtonTextFontSize

• Input type: non_negative_float
• Default value: 12

25. ExtraButtonTextFontBold

• Input type: boolean
• Default value: False

26. ExtraButtonWidth

• Input type: non_negative_integer
• Default value: 20

27. ExtraButtonHeight

• Input type: non_negative_integer
• Default value: 20

28. ExtraButtonPaddings

• Input type: non_negative_integer
• Default value: 0

29. ExtraButtonBgColor

• Input type: color
• Default value: CCCCCC

30. ExtraButtonShape

• Input type: button_shape
• Default value: 3

31. ExtraButtonImage

• Input type: asset

32. UnderlineColor

• Input type: color
• Default value: CCCCCC

33. UnderlineWidth

• Input type: non_negative_integer
• Default value: 1

34. ScrollBottomAfterAdd

• Input type: boolean
• Default value: False

35. AsyncImageLoad

• Input type: boolean
• Default value: False

36. CacheImage

• Input type: boolean
• Default value: False

37. ExtraButtonEnabled

• Input type: boolean
• Default value: False

Setters:

ColinTreeListView has total 37 setter properties.

1. ElementHeight

Gets the height of each element in pixels.

• Input type: number

2. TouchDownColor

Gets the touch down color of elements.

• Input type: number

3. WidthBeforeIcon

Gets the width before the icon.

• Input type: number

4. WidthAfterIcon

Gets the width after the icon.

• Input type: number

5. IconWidth

Gets the icon width.

• Input type: number

6. IconHeight

Gets the icon height.

• Input type: number

7. IconShape

Gets the icon shape.

• Input type: number

8. IconBgColor

Gets the icon background color.

• Input type: number

9. IconTextColor

Gets the icon text color.

• Input type: number

10. IconTextFontSize

Gets the icon text font size.

• Input type: number

11. IconTextFontBold

Gets whether icon text is bold.

• Input type: boolean

12. IconMultiParams

Gets whether icon uses multiple parameters.

• Input type: boolean

13. IconPaddings

Gets the icon paddings.

• Input type: number

14. TextColor

Gets the text color.

• Input type: number

15. TextFontSize

Gets the text font size.

• Input type: number

16. TextFontBold

Gets whether text is bold.

• Input type: boolean

17. TextHeight

Gets the text height.

• Input type: number

18. SubTextColor

Gets the subtext color.

• Input type: number

19. SubTextFontSize

Gets the subtext font size.

• Input type: number

20. SubTextFontBold

Gets whether subtext is bold.

• Input type: boolean

21. SubTextHeight

Gets the subtext height.

• Input type: number

22. WidthBeforeExtraButton

Gets the width before extra button.

• Input type: number

23. ExtraButtonText

Gets the extra button text.

• Input type: text

24. ExtraButtonTextFontSize

Gets the extra button text font size.

• Input type: number

25. ExtraButtonTextFontBold

Gets whether extra button text is bold.

• Input type: boolean

26. ExtraButtonWidth

Gets the extra button width.

• Input type: number

27. ExtraButtonHeight

Gets the extra button height.

• Input type: number

28. ExtraButtonPaddings

Gets the extra button paddings.

• Input type: number

29. ExtraButtonBgColor

Gets the extra button background color.

• Input type: number

30. ExtraButtonShape

Gets the extra button shape.

• Input type: number

31. ExtraButtonImage

Gets the extra button image.

• Input type: text

32. UnderlineColor

Gets the underline color.

• Input type: number

33. UnderlineWidth

Gets the underline width.

• Input type: number

34. ScrollBottomAfterAdd

Gets whether to scroll to bottom after adding elements.

• Input type: boolean

35. AsyncImageLoad

Gets whether to load images asynchronously.

• Input type: boolean

36. CacheImage

Gets whether to cache images.

• Input type: boolean

37. ExtraButtonEnabled

Gets whether extra button is enabled.

• Input type: boolean

Getters:

ColinTreeListView has total 41 getter properties.

1. LastClickedElement

Returns the index of the last clicked element.

• Return type: number

2. LastLongClickedElement

Returns the index of the last long clicked element.

• Return type: number

3. LastClickedIcon

Returns the index of the last clicked icon.

• Return type: number

4. LastClickedExtraButton

Returns the index of the last clicked extra button.

• Return type: number

5. ElementHeight

Gets the height of each element in pixels.

• Return type: number

6. TouchDownColor

Gets the touch down color of elements.

• Return type: number

7. WidthBeforeIcon

Gets the width before the icon.

• Return type: number

8. WidthAfterIcon

Gets the width after the icon.

• Return type: number

9. IconWidth

Gets the icon width.

• Return type: number

10. IconHeight

Gets the icon height.

• Return type: number

11. IconShape

Gets the icon shape.

• Return type: number

12. IconBgColor

Gets the icon background color.

• Return type: number

13. IconTextColor

Gets the icon text color.

• Return type: number

14. IconTextFontSize

Gets the icon text font size.

• Return type: number

15. IconTextFontBold

Gets whether icon text is bold.

• Return type: boolean

16. IconMultiParams

Gets whether icon uses multiple parameters.

• Return type: boolean

17. IconPaddings

Gets the icon paddings.

• Return type: number

18. TextColor

Gets the text color.

• Return type: number

19. TextFontSize

Gets the text font size.

• Return type: number

20. TextFontBold

Gets whether text is bold.

• Return type: boolean

21. TextHeight

Gets the text height.

• Return type: number

22. SubTextColor

Gets the subtext color.

• Return type: number

23. SubTextFontSize

Gets the subtext font size.

• Return type: number

24. SubTextFontBold

Gets whether subtext is bold.

• Return type: boolean

25. SubTextHeight

Gets the subtext height.

• Return type: number

26. WidthBeforeExtraButton

Gets the width before extra button.

• Return type: number

27. ExtraButtonText

Gets the extra button text.

• Return type: text

28. ExtraButtonTextFontSize

Gets the extra button text font size.

• Return type: number

29. ExtraButtonTextFontBold

Gets whether extra button text is bold.

• Return type: boolean

30. ExtraButtonWidth

Gets the extra button width.

• Return type: number

31. ExtraButtonHeight

Gets the extra button height.

• Return type: number

32. ExtraButtonPaddings

Gets the extra button paddings.

• Return type: number

33. ExtraButtonBgColor

Gets the extra button background color.

• Return type: number

34. ExtraButtonShape

Gets the extra button shape.

• Return type: number

35. ExtraButtonImage

Gets the extra button image.

• Return type: text

36. UnderlineColor

Gets the underline color.

• Return type: number

37. UnderlineWidth

Gets the underline width.

• Return type: number

38. ScrollBottomAfterAdd

Gets whether to scroll to bottom after adding elements.

• Return type: boolean

39. AsyncImageLoad

Gets whether to load images asynchronously.

• Return type: boolean

40. CacheImage

Gets whether to cache images.

• Return type: boolean

41. ExtraButtonEnabled

Gets whether extra button is enabled.

• Return type: boolean

ColinTreeListViewElement

Component for ColinTreeListViewElement

Methods:

ColinTreeListViewElement has total 72 methods.

1. LinkToElement

Method for LinkToElement

Parameter	Type
listview	component
elementIndex	number

2. ElementValue_

Method for ElementValue_

Parameter	Type
listview	component
elementIndex	number
value	list

3. ElementValue

Method for ElementValue

• Return type: list

Parameter	Type
listview	component
elementIndex	number

4. IconImage_

Method for IconImage_

Parameter	Type
listview	component
elementIndex	number
value	text

5. IconImage

Method for IconImage

• Return type: text

Parameter	Type
listview	component
elementIndex	number

6. ExtraButtonImage_

Method for ExtraButtonImage_

Parameter	Type
listview	component
elementIndex	number
value	text

7. ExtraButtonImage

Method for ExtraButtonImage

• Return type: text

Parameter	Type
listview	component
elementIndex	number

8. Text_

Method for Text_

Parameter	Type
listview	component
elementIndex	number
text	text

9. Text

Method for Text

• Return type: text

Parameter	Type
listview	component
elementIndex	number

10. SubText_

Method for SubText_

Parameter	Type
listview	component
elementIndex	number
subtext	text

11. SubText

Method for SubText

• Return type: text

Parameter	Type
listview	component
elementIndex	number

12. Size

Method for Size

• Return type: number

Parameter	Type
listview	component
elementIndex	number

13. UseGlobalProperties_

Method for UseGlobalProperties_

Parameter	Type
listview	component
elementIndex	number
useGlobal	boolean

14. UseGlobalProperties

Method for UseGlobalProperties

• Return type: boolean

Parameter	Type
listview	component
elementIndex	number

15. ElementBackgroundColor

Method for ElementBackgroundColor

• Return type: number

Parameter	Type
listview	component
elementIndex	number

16. ElementBackgroundColor_

Method for ElementBackgroundColor_

Parameter	Type
listview	component
elementIndex	number
argb	number

17. ElementHeight

Method for ElementHeight

• Return type: number

Parameter	Type
listview	component
elementIndex	number

18. ElementHeight_

Method for ElementHeight_

Parameter	Type
listview	component
elementIndex	number
height	number

19. WidthBeforeIcon

Method for WidthBeforeIcon

• Return type: number

Parameter	Type
listview	component
elementIndex	number

20. WidthBeforeIcon_

Method for WidthBeforeIcon_

Parameter	Type
listview	component
elementIndex	number
width	number

21. WidthAfterIcon

Method for WidthAfterIcon

• Return type: number

Parameter	Type
listview	component
elementIndex	number

22. WidthAfterIcon_

Method for WidthAfterIcon_

Parameter	Type
listview	component
elementIndex	number
width	number

23. IconWidth

Method for IconWidth

• Return type: number

Parameter	Type
listview	component
elementIndex	number

24. IconWidth_

Method for IconWidth_

Parameter	Type
listview	component
elementIndex	number
width	number

25. IconHeight

Method for IconHeight

• Return type: number

Parameter	Type
listview	component
elementIndex	number

26. IconHeight_

Method for IconHeight_

Parameter	Type
listview	component
elementIndex	number
height	number

27. IconShape

Method for IconShape

• Return type: number

Parameter	Type
listview	component
elementIndex	number

28. IconShape_

Method for IconShape_

Parameter	Type
listview	component
elementIndex	number
shape	number

29. IconBackgroundColor

Method for IconBackgroundColor

• Return type: number

Parameter	Type
listview	component
elementIndex	number

30. IconBackgroundColor_

Method for IconBackgroundColor_

Parameter	Type
listview	component
elementIndex	number
argb	number

31. IconTextColor

Method for IconTextColor

• Return type: number

Parameter	Type
listview	component
elementIndex	number

32. IconTextColor_

Method for IconTextColor_

Parameter	Type
listview	component
elementIndex	number
argb	number

33. IconTextFontSize

Method for IconTextFontSize

• Return type: number

Parameter	Type
listview	component
elementIndex	number

34. IconTextFontSize_

Method for IconTextFontSize_

Parameter	Type
listview	component
elementIndex	number
size	number

35. IconTextFontBold

Method for IconTextFontBold

• Return type: boolean

Parameter	Type
listview	component
elementIndex	number

36. IconTextFontBold_

Method for IconTextFontBold_

Parameter	Type
listview	component
elementIndex	number
bold	boolean

37. TextColor

Method for TextColor

• Return type: number

Parameter	Type
listview	component
elementIndex	number

38. TextColor_

Method for TextColor_

Parameter	Type
listview	component
elementIndex	number
argb	number

39. TextFontSize

Method for TextFontSize

• Return type: number

Parameter	Type
listview	component
elementIndex	number

40. TextFontSize_

Method for TextFontSize_

Parameter	Type
listview	component
elementIndex	number
size	number

41. TextFontBold

Method for TextFontBold

• Return type: boolean

Parameter	Type
listview	component
elementIndex	number

42. TextFontBold_

Method for TextFontBold_

Parameter	Type
listview	component
elementIndex	number
bold	boolean

43. TextHeight

Method for TextHeight

• Return type: number

Parameter	Type
listview	component
elementIndex	number

44. TextHeight_

Method for TextHeight_

Parameter	Type
listview	component
elementIndex	number
height	number

45. SubTextColor

Method for SubTextColor

• Return type: number

Parameter	Type
listview	component
elementIndex	number

46. SubTextColor_

Method for SubTextColor_

Parameter	Type
listview	component
elementIndex	number
argb	number

47. SubTextFontSize

Method for SubTextFontSize

• Return type: number

Parameter	Type
listview	component
elementIndex	number

48. SubTextFontSize_

Method for SubTextFontSize_

Parameter	Type
listview	component
elementIndex	number
size	number

49. SubTextFontBold

Method for SubTextFontBold

• Return type: boolean

Parameter	Type
listview	component
elementIndex	number

50. SubTextFontBold_

Method for SubTextFontBold_

Parameter	Type
listview	component
elementIndex	number
bold	boolean

51. SubTextHeight

Method for SubTextHeight

• Return type: number

Parameter	Type
listview	component
elementIndex	number

52. SubTextHeight_

Method for SubTextHeight_

Parameter	Type
listview	component
elementIndex	number
height	number

53. WidthBeforeExtraButton

Method for WidthBeforeExtraButton

• Return type: number

Parameter	Type
listview	component
elementIndex	number

54. WidthBeforeExtraButton_

Method for WidthBeforeExtraButton_

Parameter	Type
listview	component
elementIndex	number
width	number

55. ExtraButtonText

Method for ExtraButtonText

• Return type: text

Parameter	Type
listview	component
elementIndex	number

56. ExtraButtonText_

Method for ExtraButtonText_

Parameter	Type
listview	component
elementIndex	number
text	text

57. ExtraButtonTextFontSize

Method for ExtraButtonTextFontSize

• Return type: number

Parameter	Type
listview	component
elementIndex	number

58. ExtraButtonTextFontSize_

Method for ExtraButtonTextFontSize_

Parameter	Type
listview	component
elementIndex	number
size	number

59. ExtraButtonTextFontBold

Method for ExtraButtonTextFontBold

• Return type: boolean

Parameter	Type
listview	component
elementIndex	number

60. ExtraButtonTextFontBold_

Method for ExtraButtonTextFontBold_

Parameter	Type
listview	component
elementIndex	number
bold	boolean

61. ExtraButtonWidth

Method for ExtraButtonWidth

• Return type: number

Parameter	Type
listview	component
elementIndex	number

62. ExtraButtonWidth_

Method for ExtraButtonWidth_

Parameter	Type
listview	component
elementIndex	number
width	number

63. ExtraButtonHeight

Method for ExtraButtonHeight

• Return type: number

Parameter	Type
listview	component
elementIndex	number

64. ExtraButtonHeight_

Method for ExtraButtonHeight_

Parameter	Type
listview	component
elementIndex	number
height	number

65. ExtraButtonBackgroundColor

Method for ExtraButtonBackgroundColor

• Return type: number

Parameter	Type
listview	component
elementIndex	number

66. ExtraButtonBackgroundColor_

Method for ExtraButtonBackgroundColor_

Parameter	Type
listview	component
elementIndex	number
argb	number

67. ExtraButtonShape

Method for ExtraButtonShape

• Return type: number

Parameter	Type
listview	component
elementIndex	number

68. ExtraButtonShape_

Method for ExtraButtonShape_

Parameter	Type
listview	component
elementIndex	number
shape	number

69. UnderlineColor

Method for UnderlineColor

• Return type: number

Parameter	Type
listview	component
elementIndex	number

70. UnderlineColor_

Method for UnderlineColor_

Parameter	Type
listview	component
elementIndex	number
argb	number

71. UnderlineWidth

Method for UnderlineWidth

• Return type: number

Parameter	Type
listview	component
elementIndex	number

72. UnderlineWidth_

Method for UnderlineWidth_

Parameter	Type
listview	component
elementIndex	number
lineWidth	number

Setters:

ColinTreeListViewElement has total 35 setter properties.

1. ElementValue

Property for ElementValue

• Input type: list

2. IconImage

Property for IconImage

• Input type: text

3. ExtraButtonImage

Property for ExtraButtonImage

• Input type: text

4. Text

Property for Text

• Input type: text

5. SubText

Property for SubText

• Input type: text

6. UseGlobalProperties

Property for UseGlobalProperties

• Input type: boolean

7. ElementBackgroundColor

Property for ElementBackgroundColor

• Input type: number

8. ElementHeight

Property for ElementHeight

• Input type: number

9. WidthBeforeIcon

Property for WidthBeforeIcon

• Input type: number

10. WidthAfterIcon

Property for WidthAfterIcon

• Input type: number

11. IconWidth

Property for IconWidth

• Input type: number

12. IconHeight

Property for IconHeight

• Input type: number

13. IconShape

Property for IconShape

• Input type: number

14. IconBackgroundColor

Property for IconBackgroundColor

• Input type: number

15. IconTextColor

Property for IconTextColor

• Input type: number

16. IconTextFontSize

Property for IconTextFontSize

• Input type: number

17. IconTextFontBold

Property for IconTextFontBold

• Input type: boolean

18. TextColor

Property for TextColor

• Input type: number

19. TextFontSize

Property for TextFontSize

• Input type: number

20. TextFontBold

Property for TextFontBold

• Input type: boolean

21. TextHeight

Property for TextHeight

• Input type: number

22. SubTextColor

Property for SubTextColor

• Input type: number

23. SubTextFontSize

Property for SubTextFontSize

• Input type: number

24. SubTextFontBold

Property for SubTextFontBold

• Input type: boolean

25. SubTextHeight

Property for SubTextHeight

• Input type: number

26. WidthBeforeExtraButton

Property for WidthBeforeExtraButton

• Input type: number

27. ExtraButtonText

Property for ExtraButtonText

• Input type: text

28. ExtraButtonTextFontSize

Property for ExtraButtonTextFontSize

• Input type: number

29. ExtraButtonTextFontBold

Property for ExtraButtonTextFontBold

• Input type: boolean

30. ExtraButtonWidth

Property for ExtraButtonWidth

• Input type: number

31. ExtraButtonHeight

Property for ExtraButtonHeight

• Input type: number

32. ExtraButtonBackgroundColor

Property for ExtraButtonBackgroundColor

• Input type: number

33. ExtraButtonShape

Property for ExtraButtonShape

• Input type: number

34. UnderlineColor

Property for UnderlineColor

• Input type: number

35. UnderlineWidth

Property for UnderlineWidth

• Input type: number

Getters:

ColinTreeListViewElement has total 36 getter properties.

1. ElementValue

Property for ElementValue

• Return type: list

2. IconImage

Property for IconImage

• Return type: text

3. ExtraButtonImage

Property for ExtraButtonImage

• Return type: text

4. Text

Property for Text

• Return type: text

5. SubText

Property for SubText

• Return type: text

6. Size

Property for Size

• Return type: number

7. UseGlobalProperties

Property for UseGlobalProperties

• Return type: boolean

8. ElementBackgroundColor

Property for ElementBackgroundColor

• Return type: number

9. ElementHeight

Property for ElementHeight

• Return type: number

10. WidthBeforeIcon

Property for WidthBeforeIcon

• Return type: number

11. WidthAfterIcon

Property for WidthAfterIcon

• Return type: number

12. IconWidth

Property for IconWidth

• Return type: number

13. IconHeight

Property for IconHeight

• Return type: number

14. IconShape

Property for IconShape

• Return type: number

15. IconBackgroundColor

Property for IconBackgroundColor

• Return type: number

16. IconTextColor

Property for IconTextColor

• Return type: number

17. IconTextFontSize

Property for IconTextFontSize

• Return type: number

18. IconTextFontBold

Property for IconTextFontBold

• Return type: boolean

19. TextColor

Property for TextColor

• Return type: number

20. TextFontSize

Property for TextFontSize

• Return type: number

21. TextFontBold

Property for TextFontBold

• Return type: boolean

22. TextHeight

Property for TextHeight

• Return type: number

23. SubTextColor

Property for SubTextColor

• Return type: number

24. SubTextFontSize

Property for SubTextFontSize

• Return type: number

25. SubTextFontBold

Property for SubTextFontBold

• Return type: boolean

26. SubTextHeight

Property for SubTextHeight

• Return type: number

27. WidthBeforeExtraButton

Property for WidthBeforeExtraButton

• Return type: number

28. ExtraButtonText

Property for ExtraButtonText

• Return type: text

29. ExtraButtonTextFontSize

Property for ExtraButtonTextFontSize

• Return type: number

30. ExtraButtonTextFontBold

Property for ExtraButtonTextFontBold

• Return type: boolean

31. ExtraButtonWidth

Property for ExtraButtonWidth

• Return type: number

32. ExtraButtonHeight

Property for ExtraButtonHeight

• Return type: number

33. ExtraButtonBackgroundColor

Property for ExtraButtonBackgroundColor

• Return type: number

34. ExtraButtonShape

Property for ExtraButtonShape

• Return type: number

35. UnderlineColor

Property for UnderlineColor

• Return type: number

36. UnderlineWidth

Property for UnderlineWidth

• Return type: number

Case closed

[Sunita_Gupta1 (Sunita Gupta)]

I test this new updated extension but still as i try to load the colintreelist view i got a

Run Time error

Attempt to invoke interface method ‘android.app.Activity com.google.appinventor.compone nts.runtime.ComponentContainer. $context()’ on a null object reference

and the list didn’t get loaded

[Sunita_Gupta1 (Sunita Gupta)]

screenshort

[Ibrahim_Jamar (DevSphere </>)]

I also tested the same extasin on my side using the same component setup, and loads correctly without any runtime error.

The error you’re seeing,

Attempt to invoke interface method
android.app.Activity ComponentContainer.$context() on a null object reference

usually indicates that the component is being accessed before the Screen context is fully initialize method is called before Screen.Initialize

Drop your blocks for more details

[Sunita_Gupta1 (Sunita Gupta)]

Umm, I think the Initialize block in the updated extension is not exactly the same as in the older version, so existing users may face issues.
Still, thanks to @Ibrahim_Jamar for helping make the transition from the old ColinTreeListView extension to the updated version much smoother.
For now, it seems we need to manually replace or reconnect the Initialize block in our projects. i am checking weather that only the issue or not i will update after checking

[Ibrahim_Jamar (DevSphere </>)]

@Sunita_Gupta1

I think the Initialize block in the updated extension is not exactly the same as in the older version

Usually that possible due to the modification, mostly if you just updated your project instead of creating a new one, I was facing version issues when compiling the aix, since it’s seen a rush or something else not Fast CLI project, there was few conflicts between versions, whenever I build the default version it was a build fail and suggested to increase the version number, I remember I reached 32 trying to fix that issue​then it’s where I run a single line by line to know where the issue is, so I just modified the version number, the everything works out. But u can still use transfering block throughblock pack move from old project to new project, then in the new project just delete blocks from the old project add replace the new blocks​

@Sunita_Gupta1

thanks

At your service

[Sunita_Gupta1 (Sunita Gupta)]

after update i am getting a error while exporting my app

Kodular is unable to compile this project.
The compiler error output was
[ReadBuildInfo] Starting Task
[ReadBuildInfo] Task succeeded in 0.006 seconds
[LoadComponentInfo] Starting Task
[LoadComponentInfo] INFO: Generating assets…
[LoadComponentInfo] Component assets needed, n = 7
[LoadComponentInfo] INFO: Generating activities…
[LoadComponentInfo] Component activities needed, n = 2
[LoadComponentInfo] INFO: Component “cn.colintree.aix.ColinTreeListView.ColinTreeListView” does not specify activityMetadata
[LoadComponentInfo] INFO: Component “cn.colintree.aix.ColinTreeListView.ColinTreeListViewElement” does not specify activityMetadata
[LoadComponentInfo] Component activity metadata needed, n = 0
[LoadComponentInfo] INFO: Generating broadcast receivers…
[LoadComponentInfo] INFO: Component “cn.colintree.aix.ColinTreeListView.ColinTreeListView” does not specify contentProviders
[LoadComponentInfo] INFO: Component “cn.colintree.aix.ColinTreeListView.ColinTreeListViewElement” does not specify contentProviders
[LoadComponentInfo] INFO: Generating libraries…
[LoadComponentInfo] Libraries needed, n = 22
[LoadComponentInfo] INFO: Component “cn.colintree.aix.ColinTreeListView.ColinTreeListView” does not specify metadata
[LoadComponentInfo] INFO: Component “cn.colintree.aix.ColinTreeListView.ColinTreeListViewElement” does not specify metadata
[LoadComponentInfo] Component metadata needed, n = 0
[LoadComponentInfo] INFO: Generating Android minimum SDK…
[LoadComponentInfo] INFO: Generating native libraries…
[LoadComponentInfo] Native Libraries needed, n = 0
[LoadComponentInfo] INFO: Generating permissions…
[LoadComponentInfo] usesLocation = True
[LoadComponentInfo] Permissions needed, n = 46
[LoadComponentInfo] INFO: Component “cn.colintree.aix.ColinTreeListView.ColinTreeListView” does not specify queries
[LoadComponentInfo] INFO: Component “cn.colintree.aix.ColinTreeListView.ColinTreeListViewElement” does not specify queries
[LoadComponentInfo] INFO: Component “com.sunny.Cloudinary.Cloudinary” does not specify queries
[LoadComponentInfo] INFO: Component “com.akg.InvoicePrinter.InvoicePrinter” does not specify queries
[LoadComponentInfo] INFO: Component “com.apphelper.googlespreadsheet.Spreadsheet_Extension” does not specify queries
[LoadComponentInfo] INFO: Component “cn.colintree.aix.ColinTreeListView.ColinTreeListView” does not specify services
[LoadComponentInfo] INFO: Component “cn.colintree.aix.ColinTreeListView.ColinTreeListViewElement” does not specify services
[LoadComponentInfo] INFO: Component “cn.colintree.aix.ColinTreeListView.ColinTreeListView” does not specify xmls
[LoadComponentInfo] INFO: Component “cn.colintree.aix.ColinTreeListView.ColinTreeListViewElement” does not specify xmls
[LoadComponentInfo] INFO: Component “com.sunny.Cloudinary.Cloudinary” does not specify xmls
[LoadComponentInfo] INFO: Component “com.akg.InvoicePrinter.InvoicePrinter” does not specify xmls
[LoadComponentInfo] INFO: Component “com.apphelper.googlespreadsheet.Spreadsheet_Extension” does not specify xmls
[LoadComponentInfo] Component xmls needed, n = 0
[LoadComponentInfo] INFO: Generating component broadcast receivers…
[LoadComponentInfo] Task succeeded in 0.011 seconds
[CheckDeprecatedComponents] Starting Task
[CheckDeprecatedComponents] Task succeeded in 0.012 seconds
[CheckComponentRequirements] Starting Task
[CheckComponentRequirements] Task succeeded in 0.0 seconds
[VerifyExtensions] Starting Task
[VerifyExtensions] Task succeeded in 0.097 seconds
[GenerateBuildId] Starting Task
[GenerateBuildId] INFO: Skipping Build ID generation for App with no required components.
[GenerateBuildId] Task succeeded in 0.0 seconds
[RetrieveGamAdUnit] Starting Task
[RetrieveGamAdUnit] INFO: Skipping Ad Unit ID retrieval for app with no required components.
[RetrieveGamAdUnit] Task succeeded in 0.0 seconds
[PrepareAppIcon] Starting Task
[PrepareAppIcon] INFO: Creating mipmap dirs…
[PrepareAppIcon] INFO: Generating icons…
[PrepareAppIcon] Generating icons for mipmap-mdpi
[PrepareAppIcon] Generating icons for mipmap-hdpi
[PrepareAppIcon] Generating icons for mipmap-xhdpi
[PrepareAppIcon] Generating icons for mipmap-xxhdpi
[PrepareAppIcon] Generating icons for mipmap-xxxhdpi
[PrepareAppIcon] Task succeeded in 0.088 seconds
[XmlConfig] Starting Task
[XmlConfig] INFO: Creating animation xml
[XmlConfig] Creating zoom_enter.xml
[XmlConfig] Creating fadeout.xml
[XmlConfig] Creating slide_v_exit.xml
[XmlConfig] Creating fadein.xml
[XmlConfig] Creating zoom_exit.xml
[XmlConfig] Creating slide_v_enter.xml
[XmlConfig] Creating zoom_exit_reverse.xml
[XmlConfig] Creating slide_v_enter_reverse.xml
[XmlConfig] Creating zoom_enter_reverse.xml
[XmlConfig] Creating slide_enter_reverse.xml
[XmlConfig] Creating slide_exit.xml
[XmlConfig] Creating hold.xml
[XmlConfig] Creating slide_enter.xml
[XmlConfig] Creating slide_v_exit_reverse.xml
[XmlConfig] Creating slide_exit_reverse.xml
[XmlConfig] INFO: Creating colors xml
[XmlConfig] INFO: Creating styles xml
[XmlConfig] INFO: Creating provider_path xml
[XmlConfig] INFO: Creating network_security_config xml
[XmlConfig] INFO: Generating adaptive icon file
[XmlConfig] INFO: Generating round adaptive icon file
[XmlConfig] INFO: Generating adaptive icon background file
[XmlConfig] INFO: Creating fragment xml
[XmlConfig] INFO: Creating listview xml
[XmlConfig] INFO: Creating listview-21 xml
[XmlConfig] INFO: Creating drawable xml
[XmlConfig] INFO: Creating drawable-21 xml
[XmlConfig] INFO: Creating strings xml
[XmlConfig] Task succeeded in 0.003 seconds
[CreateManifest] Starting Task
[CreateManifest] INFO: Reading project specs…
[CreateManifest] VCode: 14
[CreateManifest] VName: V.03.08.25 UIUX UP
[CreateManifest] Custom Package Name: com.akg.DIGITAL_AM
[CreateManifest] Min SDK 21
[CreateManifest] INFO: Writing screen ‘io.kodular.info_ankitmarketing.dtam.Screen1’
[CreateManifest] INFO: Writing screen ‘io.kodular.info_ankitmarketing.dtam.MAIN_PAGE’
[CreateManifest] Task succeeded in 0.001 seconds
[AttachNativeLibs] Starting Task
[AttachNativeLibs] Task succeeded in 0.0 seconds
[AttachAarLibs] Starting Task
[AttachAarLibs] Task succeeded in 0.075 seconds
[AttachCompAssets] Starting Task
[AttachCompAssets] Task succeeded in 0.011 seconds
[MergeResources] Starting Task
[MergeResources] Task succeeded in 0.052 seconds
[SetupLibs] Starting Task
[SetupLibs] Task succeeded in 0.0 seconds
[RunAapt] Starting Task
[RunAapt] Task succeeded in 0.412 seconds
[GenerateClasses] Starting Task
[GenerateClasses] INFO: Source File: io/kodular/info_ankitmarketing/dtam/Screen1.yail
[GenerateClasses] INFO: Source File: io/kodular/info_ankitmarketing/dtam/MAIN_PAGE.yail
[GenerateClasses] ERROR: Kawa compile has failed.
(compiling io/kodular/info_ankitmarketing/dtam/Screen1.yail to io.kodular.info_ankitmarketing.dtam.Screen1)
(compiling io/kodular/info_ankitmarketing/dtam/MAIN_PAGE.yail to io.kodular.info_ankitmarketing.dtam.MAIN_PAGE)
io/kodular/info_ankitmarketing/dtam/MAIN_PAGE.yail:9657: internal error while compiling io/kodular/info_ankitmarketing/dtam/MAIN_PAGE.yail
java.lang.RuntimeException: no such class: cn.colintree.aix.colintreelistview.ColinTreeListViewElement
at gnu.bytecode.ObjectType.getReflectClass(ObjectType.java:179)
at gnu.bytecode.ClassType.getModifiers(ClassType.java:103)
at gnu.bytecode.ClassType.isInterface(ClassType.java:471)
at gnu.expr.InlineCalls.checkType(InlineCalls.java:56)
at gnu.expr.InlineCalls.visit(InlineCalls.java:49)
at gnu.expr.InlineCalls.visitSetExpValue(InlineCalls.java:363)
at gnu.expr.InlineCalls.visitSetExpValue(InlineCalls.java:28)
at gnu.expr.ExpVisitor.visitSetExp(ExpVisitor.java:114)
at gnu.expr.InlineCalls.visitSetExp(InlineCalls.java:369)
at gnu.expr.InlineCalls.visitSetExp(InlineCalls.java:28)
at gnu.expr.SetExp.visit(SetExp.java:406)
at gnu.expr.ExpVisitor.visit(ExpVisitor.java:55)
at gnu.expr.InlineCalls.visit(InlineCalls.java:46)
at gnu.expr.InlineCalls.visitBeginExp(InlineCalls.java:272)
at gnu.expr.InlineCalls.visitBeginExp(InlineCalls.java:28)
at gnu.expr.BeginExp.visit(BeginExp.java:156)
at gnu.expr.ExpVisitor.visit(ExpVisitor.java:51)
at gnu.expr.InlineCalls.visit(InlineCalls.java:46)
at gnu.expr.QuoteExp.validateApply(QuoteExp.java:162)
at gnu.expr.InlineCalls.visitApplyExp(InlineCalls.java:119)
at gnu.expr.InlineCalls.visitApplyExp(InlineCalls.java:28)
at gnu.expr.ApplyExp.visit(ApplyExp.java:410)
at gnu.expr.ExpVisitor.visit(ExpVisitor.java:55)
at gnu.expr.InlineCalls.visit(InlineCalls.java:46)
at gnu.expr.InlineCalls.visit(InlineCalls.java:28)
at gnu.expr.LambdaExp.visitChildrenOnly(LambdaExp.java:1664)
at gnu.expr.LambdaExp.visitChildren(LambdaExp.java:1651)
at gnu.expr.InlineCalls.visitScopeExp(InlineCalls.java:279)
at gnu.expr.InlineCalls.visitLambdaExp(InlineCalls.java:349)
at gnu.expr.InlineCalls.visitLambdaExp(InlineCalls.java:28)
at gnu.expr.ExpVisitor.visitModuleExp(ExpVisitor.java:103)
at gnu.expr.ModuleExp.visit(ModuleExp.java:482)
at gnu.expr.ExpVisitor.visit(ExpVisitor.java:51)
at gnu.expr.InlineCalls.visit(InlineCalls.java:46)
at gnu.expr.InlineCalls.inlineCalls(InlineCalls.java:33)
at gnu.expr.Compilation.walkModule(Compilation.java:994)
at gnu.expr.Compilation.process(Compilation.java:1965)
at gnu.expr.ModuleInfo.loadByStages(ModuleInfo.java:330)
at gnu.expr.ModuleInfo.loadByStages(ModuleInfo.java:315)
at gnu.expr.ModuleInfo.loadByStages(ModuleInfo.java:315)
at gnu.expr.ModuleInfo.loadByStages(ModuleInfo.java:315)
at kawa.repl.compileFiles(repl.java:783)
at kawa.repl.processArgs(repl.java:412)
at kawa.repl.main(repl.java:827)
Caused by: java.lang.ClassNotFoundException: cn.colintree.aix.colintreelistview.ColinTreeListViewElement
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:527)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:398)
at gnu.bytecode.ObjectType.getContextClass(ObjectType.java:108)
at gnu.bytecode.ObjectType.getReflectClass(ObjectType.java:172)
… 43 more
[GenerateClasses] ERROR: Can’t find class file for Screen ‘MAIN_PAGE’
[GenerateClasses] Task errored in 1.372 seconds

and when somehow like after refreshing the page i retry to export and try to test the app "the app shows "not responding - wait or close app
.

[Taifun]

@Sunita_Gupta1

Umm, I think the Initialize block in the updated extension is not exactly the same as in the older version, so existing users may face issues.

Where exactly is the problem to replace the old Initialize block by rhe new one after importing the new version of the extension?

Taifun

[Ibrahim_Jamar (DevSphere </>)]

@Sunita_Gupta1

Can’t find class file for Screen ‘MAIN_PAGE’

Something isn’t placed correctly or wrong namely

[Taifun]

@Sunita_Gupta1

ERROR: Can’t find class file for Screen ‘MAIN_PAGE’

Try to remove rhe underscore from the screen name… use CamelCase notation

See also RunD8 ERROR: d8 failed - #5 by securebugs

To test the extension only, create a new project, import the extension and build it

Taifun

[Sunita_Gupta1 (Sunita Gupta)]

i noticed something crazy like , as i imported the new fixed extensions so it updated with the new extension only the initialize block was showing error so i delete that block and replace it with the new updated extension and as i export i got that error and when i refresh the page i saw that the old version of the extension is back ?? like how is that possible i have updated the extension then why after refreshing the page i am getting back the old extension

[Ibrahim_Jamar (DevSphere </>)]

@Ibrahim_Jamar

Usually that possible due to the modification, mostly if you just updated your project instead of creating a new one

Also no build errors, can take your time verify more things?

@Ibrahim_Jamar

But u can still use transfering block throughblock pack move from old project to new project, then in the new project just delete blocks from the old project add replace the new blocks

[Sunita_Gupta1 (Sunita Gupta)]

alright i will try it tomorrow

@Ibrahim_Jamar

But u can still use transfering block throughblock pack move from old project to new project, then in the new project just delete blocks from the old project add replace the new blocks