Color Feature & Notifier Feature | Are there bugs of AI2 or I am doing something wrong

MIT App Inventor Help
1

Hello all,

I am working a longer time with AI2. I am always having to problems:

Color Feature in AI2:
The color always appends an "ff" at the end of the color. Do I do something wrong or is it a bug?

Notifier Feature (colors):
Also I have a color problem with the background and the text color of the Notifier in AI. The colors of the resulting notifier are not the colors I have choosen, perhaps they are changed against each other. I do not know exactly. Do I do something wrong or is it an AI2 bug?

I know, that I can use an extension for notifiers. I think, I will do so in the future. But in case, that these are bugs (perhaps), it would great, if someone could care about them.

Thank you very much!

Martina

2

No bugs

Colour:
"ff" in a hex code is for the opacity of a colour

Notifier
The colour options apply only to the alert. You cannot change the colours in the dialogs

1 Like
3

You need to use custom notifier extension to add colors to notiier dialogs :slight_smile:

4

Dear TIMAI2,

Thank you very much. From web design and graphic design I know, that it is possible, to change the opacity. But how should I change the "ff", if I want for e. g. 50 % opacity? Do you also know this, please? Thank you. Have a great Sunday!

Martina

5

Thank you, yes, if I need a notifier in the future (I am sure, that i will need it), I will use a notifier extension. Thanks! Great Sunday for you!

6

Update: Yeah! I found something great by myself, what I will share with you all:

These are the two-digit color codes for the opacity. Great, I am happy!

7

In the colour selector for a component in the designer, the opacity is the last two digits. Here you see 66 at the right:

image

Therefore to change the opacity of a colour, just drag the column on the right, or simply type in a value (you will see by dragging that they are not just numbers, but sometimes number and letter combinations)

8

Thank you, dear TIMAI2!

I have read on Taifun's page, that there are also HTML tags available for the notifiers. I made a notifier.aia to demonstrate the change of the text color. Not only that, but I also tried div style="background-color:blue", but this fails. But here is the .aia

Notifier_HTML.aia (1,9 KB)

Possible are also big and small and some other html tags and colors, but not all HTML color names. Here is a page with color names:

9

Here is another page with colour names

The html you refer to only supports a limited number of colours and tags.
As I previously said you cannot style the background colour of a notifier dialog.

Best to make your own....:wink: