webviewer.GoToUrl ... problem

MIT App Inventor Help
1

Hello.
I used in the app webviewer.GoToUrl on and html files located in the assets. I tested the html via FireFox.
The apk works on some phones, but only opens blank pages on some ... Where can be the mistake?
Ondrej

2

Are the html pages very big? Maybe show some of them. Can you give some examples on which phones it doesn't work?

3

E.g. on mobile with Android 8.0.0 HUAWEI it does not work.
The largest file is pos1.html and has 4039.

<html>
  <head>
    <title></title>
    <style type="text/css">  
  #pozadiesive {background-color:  LightGray ;}
  #pozadiezelene {background-color:  LightGreen ;}
  #pozadietmavosive {background-color:  Gainsboro   ;} 
  #pozadiefialove {background-color:  #de8cffff   ;}   
  </style>
  </head>
  <body>  
  <p>
  <h4 style='color:red'><b> 1.	DEŇ – POPOLCOVÁ STREDA </b> </h4>
</h4> 
<div id="pozadiesive"> 
...........
..........

Ondrej

4

It works on Android 6.0.0 ....
Ondrej

5

Rename your html file to txt extension and upload it here.

6

post1.txt (3.9 KB)
I send

7

I renamed your file from txt to html, load it to assets and used

image

Loads fine for me

image
image720×1280 128 KB

8

Tested on Android 10 & 12 using companion, html loads just fine :slight_smile:

9

I tested on android 9 and 11 :slight_smile:

1 Like
10

I put the block in there. But unfortunately it doesn't work that way ...

blocks(61)
blocks(61)1102×1242 116 KB

11

Just try the GoToUrl without the tinydb value first. Does that work ?
If it does, then you need to look at what is coming back from the tinydb.

12

Hello.
When I disabled TinyDB1 in Screen2, post1.html works ...
Screen1 has the following blocks:
blocks(62)

blocks(63)
blocks(63)772×280 20 KB

etc ...
Isn't there a mistake?

Ondrej

13

It works randomly ... Once html is displayed, other times not ...
ValueToStore can also be a numeric?
Ondrej

14

Isn't there another way to add TinyDB1? Because this works completely randomly ... When I return from Screen2 to the menu in Screen1, once the html is displayed, once not. I don't see a mistake there ...
Ondrej

15

grafik
grafik1125×549 52.7 KB

grafik
grafik762×437 88.8 KB

1 Like
16

I have a question, why you have opted to have tinyDB, since you are not going to take benifits of stored values in tinyDB. You always start with fresh choice from screen1.

I did is this way, its working to me

Screen1

image
image841×426 28 KB

Screen2/HTMLDisplay

image
image785×363 29.2 KB

IMG_20220302_124419
IMG_20220302_124419720×1222 237 KB

Correct me if I am not in correct direction.

Edit: Blocks for Back button at Screen2

blocks (50)
blocks (50)906×200 20.6 KB

17

I did it, it shows me "Error" there. So I have something wrong in TinyDB1 ...
I just don't know what. Can't do it on one screen ... both menu ... and html display?
Ondrej

18

Which error? Post a screenshot.

19

HTML Display is in what extension?

20

obrázok
obrázok1920×1080 176 KB