Yet, another (yet unique) designer scrollbar issue

MIT App Inventor Help
1

Hi, Everyone

This is so very confusing. Yesterday, I could slide the scrollbar in the designer page to an additional horizontal element that comprised my virtual page 2, and beyond.

This morning, the scrollbar is almost as long as the phone image and does not scroll anywhere. I have checked and unchecked the "Display Hidden Components in Viewer" box on top of the designer screen, as well as all of the check boxes in properties and the scrollable command. @ABG had a solution but not an answer. The solution is to make the unviewable horizontal property (virtual screen) 1200, or so, pixels long or so. When I do this, I now have some movement of my slider (it shortens), much like checking the "Display Hidden Components in Viewer" at the top of the designer screen used to accomplish. Basically, overnight, I lost the scrolling function I used to have in MOST of my apps but not all, as I did find a project from last week that loaded with the designer page scrollbar short, and at the top of the page, allowing me to drag it downward to see other virtual pages.

I started from scratch with the following examples. I made the Horizontal Arrangement 1 Magenta and Horizontal Arrangement 2 Cyan. Clicking on Arrangement 2 under "All Components" should bring up the cyan box but nothing happens and I cannot get to my 2nd horizontal arrangement regardless of how big I make it in pixels or percentages.

Please help if you know where I am failing. Something so basic has never happened to me before in such a manner and it seems like the GUI is breaking down, but I have it on good advice it's probably operator error.

No_Scroll
No_Scroll1870×850 279 KB

2

What's the setting in Screen1 for scrollable?

3

should not affect the scrollbar in this instance, because your HA2 is visible, but not viewable because it is below your HA1. If you had screen scrollable enabled, and HA2 unticked visible (hidden) then using the above command should make the scrollbar appear if HA1 is not already taller than the screen. If HA1 is taller than the screen, the the scrollbar should already be visible.

5

Well, you caught me (in this example).
Scrollable" in Screen 1 was not checked and checking it did free up my ability to view the two virtual screens.

In several other variations of the app I am working on, however, the "Scrollable" box IS checked for Screen 1 and the slider still does not shorten to allow viewing further down the screen (to other virtual pages).

The good news is that I kept a version (with backup) that DOES scroll and I will be working with it so this does not slow me down anymore, but it is mighty confusing.