B4J Library [Web][ABMaterial] Framework for WebApps

mwebim · Nov 15, 2015

Hi Alwaysbusy
This looks amazing.
I tried to run it in b4j and I get the following error. I previously upgraded java to version 8 update 66
I get it building ok but on running comes up with this error

java.lang.ExceptionInInitializerError
Caused by: java.lang.RuntimeException: java.lang.UnsupportedClassVersionError: com/ab/abmaterial/ABMTheme : Unsupported major.minor version 52.0
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:114)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:90)
at abmaterial.ab.com.main.<clinit>(main.java:17)
Caused by: java.lang.UnsupportedClassVersionError: com/ab/abmaterial/ABMTheme : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:190)
at anywheresoftware.b4a.shell.Shell.getCorrectClassName(Shell.java:485)
at anywheresoftware.b4a.shell.Shell.createObject(Shell.java:472)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:243)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:158)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:93)
... 2 more
Exception in thread "main"

Any ideas

regards

mike

alwaysbusy · Nov 15, 2015

Is your path setting in B4J correct?

b4auser1 · Nov 15, 2015

Wish: I believe that standard control to authenticate users with facebook and google accounts will be usefull to avoid own authentication in many cases.

billyrudi · Nov 16, 2015

Hi alwaysbusy,
two questions.
how i can disable login button to prevent more click?
how i can show an hourglass progrmmatically?
tanks Paolo

alwaysbusy · Nov 16, 2015

@billyrudi I'm sorry, but I do not understand your first question. Do you want to disable the button? You can check if the login/password is ok in b4j (like in the demo).
As for the hourglass, there is one when you navigate between pages. I see if it it possible to make one that can be called by code.

Gabino A. de la Gala · Nov 16, 2015

Hello again!!!

How I can add items to a list at runtime and refresh the page every time ?

Right now I 'm doing with Page.Refresh after clickar on a table , element adds me on the list, but the page tables are me " rare " and stop behaving as usual. And you can not be ordered depending on the title of the column that you click , etc.

In addition are the colors of the table also changed.

Please. Look at this images:

Before refresh:

After refresh:

billyrudi · Nov 16, 2015

alwaysbusy said:
@billyrudi I'm sorry, but I do not understand your first question. Do you want to disable the button? You can check if the login/password is ok in b4j (like in the demo).
As for the hourglass, there is one when you navigate between pages. I see if it it possible to make one that can be called by code.

the first question is:
if in login panel i click the buttom and i must wait a webserver to verify the username and password there is a way to lock the panel or the botton to prevent more than one click?
for the second how i can show the hourglass that you you show when navigate between pages.

Cableguy · Nov 16, 2015

Gabino A. de la Gala said:
Hello again!!!

How I can add items to a list at runtime and refresh the page every time ?

Right now I 'm doing with Page.Refresh after clickar on a table , element adds me on the list, but the page tables are me " rare " and stop behaving as usual. And you can not be ordered depending on the title of the column that you click , etc.

In addition are the colors of the table also changed.

Please. Look at this images:

Before refresh:

After refresh:

About adding to the list, I can't help you there, but after you have added to the list, call "ABMShared.NavigateToPage" to reload the entire page

billyrudi · Nov 16, 2015

Hi alwaysbusy,
another question..
there is the way to add items to an ABMList programmatically and not in the BuildPage event?

Gabino A. de la Gala · Nov 16, 2015

billyrudi said:
Hi alwaysbusy,
another question..
there is the way to add items to an ABMList programmatically and not in the BuildPage event?

I'm trying to do it in this way:

B4X:

Dim list1 As ABMList = page.Component("list1")

Sub tbl2_clicked(PassedRowsAndColumns As List)
    ' is the root table
    Dim tblCellInfo As ABMTableCell = PassedRowsAndColumns.Get(0)
    Dim tbl As ABMTable = page.Component(tblCellInfo.TableName)
    Dim StringSelect As String = tbl.GetString(tblCellInfo.Row, tblCellInfo.Column)
    Dim list1 As ABMList = page.Component("list1")
    list1.AddSubItem("H1", "S"&(myToastId+1), BuildSimpleItem("L1H1S"&(myToastId+1),"", StringSelect))
    list1.Refresh
    page.Refresh  

    myToastId = myToastId + 1   
    page.ShowToast("toast" & myToastId, "toastred", "Clicked " & tblCellInfo.TableName & " row " & tblCellInfo.Row & " column " & tblCellInfo.Column, 5000)
End Sub

But I've got 2 "problems":

list1.refresh (apparently not work)
page.refresh (works, but with the problems indicated in my previous post deforming the tables)

alwaysbusy · Nov 16, 2015

I will have to look deeper into this, but you're right something is wrong with the refresh.

mwebim · Nov 17, 2015

alwaysbusy said:
Is your path setting in B4J correct?

Thanks, I changed the path to version 8 java and all going now.

Gabino A. de la Gala · Nov 17, 2015

I've founded a abnormal behaviour using fixed size tables.

The footer band is putted twice:

When I click y any row and the page is refreshed, the aspect is:

And then, you can click in both rows with data...

Bye.

billyrudi · Nov 17, 2015

Hi
alwaysbusy
there i a way to add to a listitem of ABMList component a tag to insert on object or srting value?
regards paolo

alwaysbusy · Nov 17, 2015

@billyrudi No, but I'll see what I can do. Making good progress on the bugs on the refresh of the table and list. There were some shortcuts I created when I started writing the framework that don't appear to work now that the framework is bigger. Quite some work to do but it looks you would not have to make any changes to your code once its done.

billyrudi · Nov 17, 2015

hi with this code i'm able to load item perfectly.

B4X:

Private Sub WebSocket_Connected (WebSocket1 As WebSocket)
   Log("Connected")
   ws = WebSocket1   
   If ABMShared.NeedsAuthorization Then
     If ws.Session.GetAttribute2("IsAuthorized", "") = "" Then
       ABMShared.NavigateToPage(ws, "../")
       Return
     End If
   End If
   ' connect our page with the websocket   
   page.SetWebSocket(ws)
   ' Prepare the page IMPORTANT!
   page.Prepare
   CaricaGriglia
   
End Sub


Sub CaricaGriglia()
    Dim list1 As ABMList = page.Component(2,1,"list1")
    Dim ll As List
    Try
        ll = ws.Session.GetAttributesNames
    Dim ii As Int
    For ii = 0 To ll.Size -1
        Dim s As String
        s = ll.Get (ii)
        If s.StartsWith("$$") Then
            Dim lstmez As List = ws.Session.GetAttribute (s)
            Dim jj As Int
            For jj = 0 To lstmez.Size -1
                Dim sl() As String
                Dim tll As String
                tll = lstmez.Get (jj)
                sl = Regex.Split ("\|",tll)
                Dim quando As String
                quando = sl(8)
                '  20151117090830
                quando = quando.SubString2 (6 ,8) & "/" &  quando.SubString2(4,6) & "/" &  quando.SubString2(0,4)& " " & quando.SubString2(8,10) & ":" &  quando.SubString2(10,12)
                list1.AddSubItem("H1",  sl(2), BuildSimpleItem( sl(3),  "","{B}" & sl(2) & "{/B} - " & quando  & "{BR}{B}T1:{/B}" & Round2( sl(4),1) & "°C"  & " - {B}T2:{/B}:" & Round2(sl(5),1) & "°C" & " - {B}T3:{/B}:" & Round2(sl(6),1) & "°C" & " - {B}T4:{/B}:" & Round2(sl(7),1) & "°C"))
                Log(sl(2))   
            Next
           
           
        End If
    Next
        list1.Refresh
        page.Refresh

    Catch
       
        Log(LastException)
    End Try
End Sub

billyrudi · Nov 17, 2015

Excuseme for my questions.... but working ...
there is a way to make a reverse geocoding using this instructions for example?

B4X:

function initMap() {
  var map = new google.maps.Map(document.getElementById('map'), {
    zoom: 8,
    center: {lat: 40.731, lng: -73.997}
  });
  var geocoder = new google.maps.Geocoder;
  var infowindow = new google.maps.InfoWindow;

  document.getElementById('submit').addEventListener('click', function() {
    geocodeLatLng(geocoder, map, infowindow);
  });
}

function geocodeLatLng(geocoder, map, infowindow) {
  var input = document.getElementById('latlng').value;
  var latlngStr = input.split(',', 2);
  var latlng = {lat: parseFloat(latlngStr[0]), lng: parseFloat(latlngStr[1])};
  geocoder.geocode({'location': latlng}, function(results, status) {
    if (status === google.maps.GeocoderStatus.OK) {
      if (results[1]) {
        map.setZoom(11);
        var marker = new google.maps.Marker({
          position: latlng,
          map: map
        });
        infowindow.setContent(results[1].formatted_address);
        infowindow.open(map, marker);
      } else {
        window.alert('No results found');
      }
    } else {
      window.alert('Geocoder failed due to: ' + status);
    }
  });
}

?

alwaysbusy · Nov 17, 2015

@billyrudi I add reverse geocoding to the next update.

Roberto P. · Nov 18, 2015

there is a problem: after some time, the application is disconnected and is no longer reachable. There is a timer that stops or after a little time?

thank you

alwaysbusy · Nov 18, 2015

A mail with an update of ABMaterial has been sent to the donators containing a fix for the refresh() problem. As this one is rather important for everyone, it would be nice if I could get some quick feedback so I can put this release out for everyone.

B4J Library [Web][ABMaterial] Framework for WebApps

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