B4J Tutorial [BANanoWebix] Lesson 21 TabBar

Mashiane

Expert
Licensed User
Ola

The tab-bar as depicted below is placed at the bottom of the page...

B4X:
Dim tb As WixTabBar

    tb.Initialize("tb").SetHeight(60).SetTypeBottom(True).SetMultiView(True).SetAnimate(True)
    tb.AddItem("listView", "List", "wxi-file")
    tb.AddItem("formView", "Form", "wxi-columns")
    tb.AddItem("aboutView", "About", "wxi-alert")
Her we create a tab-bar and each item added is being linked to a wixelement with the same name

Lesson21TabBar.gif


We have enabled animation for it and added it to the second row of our page with some icons.

1. We added an item called 'listview', we now create a list with the same name and add some data to list.

B4X:
'load flat data
    Dim data As List
    data.Initialize
    data.Add(CreateMap("id":1, "value":"The Shawshank Redemption", "year":1994, "votes":678790, "rating":9.2, "rank":1))
    data.Add(CreateMap("id":2, "value":"The Godfather", "year":1972, "votes":511495, "rating":9.2, "rank":2))
    data.Add(CreateMap("id":3, "value":"The Godfather: Part II", "year":1974, "votes":319352, "rating":9.0, "rank":3))
    data.Add(CreateMap("id":4, "value":"The Good, the Bad And the Ugly", "year":1966, "votes":213030, "rating":8.9, "rank":4))
    data.Add(CreateMap("id":5, "value":"Pulp fiction", "year":1994, "votes":533848, "rating":8.9, "rank":5))
    data.Add(CreateMap("id":6, "value":"12 Angry Men", "year":1957, "votes":164558, "rating":8.9, "rank":6))
    
    Dim lst As WixList
    lst.Initialize("listView").SetItemHeight(60)
    lst.SetTemplate("#rank#. #value# <div style='padding-left:18px'> Year:#year#, votes:#votes# </div>")
    lst.SetSelect(True).SetData(data)
We set the item height of each item to display on the list and then define a template to show the data we need and then link the data. The link is established automatically between the tab-bar and the list with their 'id' names.

B4X:
Dim frm As WixLayout
    frm.Initialize("formView")
    Dim l1 As WixElement
    l1.Initialize("l1").SetTemplate("Put form contents here...")
    frm.Layout.SetTypeWide
    frm.Layout.AddColumns(l1.item)
    '
    Dim frm1 As WixLayout
    frm1.Initialize("aboutView")
    Dim l2 As WixElement
    l2.Initialize("l2").SetTemplate("About TabBar...")
    frm1.Layout.SetTypeWide
    frm1.Layout.AddColumns(l2.item)
    '
    R1.AddCells(lst.Item)
    R1.AddCells(frm.Item)
    R1.AddCells(frm1.Item)
Finalizing the exercise is then creating additional widgets and then adding those to the Cells collection of R1 and then adding the row to the page.

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