Open Another Form LAMW Android
lazarus / 43-Android

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spacepascal · 2024-11-04 15:15

I changed PC and i reinstalled LAWM in a new PC. Usually i used this
code to Open Another form, but for somewhat reason is not working
anyway. Also in the past i had some trouble to open the others forms
but i resolved the issue with this code, especially with the "close;"
line.
Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i    if
AndroidModule2 = nil then     begin     
 gApp.CreateForm(TAndroidModule2, AndroidModule2);     
 AndroidModule2.InitShowing();     end;    Close;Right now this code
don't work anymore. Why? There is a single place where to learn lamw
programming?

I tested the code in Android 14
Thanks to all the heros who want to help me!!

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c4p · 2024-11-04 19:08

My code to create the form, and force to the front, I am using Android
14.:

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i       if
(AndroidModule2 = nil) then        begin         
gapp.CreateForm(TAndroidModule2, AndroidModule2);         
AndroidModule2.Init();          AndroidModule2.MoveTaskToFront();    
  end;
Code to show the form:

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i  
 AndroidModule2.Show;   
I also have the second form in the uses clause of the controls.lpr
The MoveTaskToFront can probably be put just before the show, not sure
why I put it there, I must have had a reason

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spacepascal · 2024-11-04 22:23

I don't know why but don't work for me. There are some changes in LAMW
in the form initialization?

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dseligo · 2024-11-04 22:48

What does happen? Do you have error or crash?

This is code from one of my test apps, it is similar to c4p's code:
Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i procedure
TAndroidModule1.AndroidModule1ActivityCreate(Sender: TObject;
intentData: jObject);begin  If AndroidModule2 = nil then  begin   
gApp.CreateForm(TAndroidModule2, AndroidModule2);   
AndroidModule2.DoJNIPromptOnInit := False;   
AndroidModule2.BackgroundColor := colbrGhostWhite;   
AndroidModule2.Init;  end;end; procedure
TAndroidModule1.btnForm2Click(Sender: TObject);begin 
AndroidModule2.Show;end;

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spacepascal · 2024-11-05 16:42

This last example seem to work well, why the others don't work? No
error nor others issues. Strange behavior maybe there was an update in
LAMW Form initialization i don't know.

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dseligo · 2024-11-05 17:26

Quote from: spacepascal on November 05, 2024, 05:42:50 pmThis last
example seem to work well, why the others don't work? No error nor
others issues. Strange behavior maybe there was an update in LAMW Form
initialization i don't know.

Difference between c4p's and mine example is that I explicitly set
form's background color - backgrounds in Android are transparent by
default.

That is the reason I asked what does happen exactly. I.e.: nothing is
shown, a crash, overlapping of elements from first and second form,
...

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c4p · 2024-11-05 21:22

100% correct, I have my Background on the second form set to Black /
coblBlack.
Transparency by default causes so many issues.

Quote from: dseligo on November 05, 2024, 06:26:45 pmQuote from:
spacepascal on November 05, 2024, 05:42:50 pmThis last example seem to
work well, why the others don't work? No error nor others issues.
Strange behavior maybe there was an update in LAMW Form initialization
i don't know.

Difference between c4p's and mine example is that I explicitly set
form's background color - backgrounds in Android are transparent by
default.

That is the reason I asked what does happen exactly. I.e.: nothing is
shown, a crash, overlapping of elements from first and second form,
...

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Mongkey · 2024-12-28 23:01

Avoid using any components on another form in a long time, in android
12+ it would cause leaky error -> your app got crashing all over
times.