tabbed_view 0.5.0

Flutter widget inspired by the classic Desktop-style tab component. Supports customizable themes.

tabbed_view

Flutter widget inspired by the classic Desktop-style tab component. Supports customizable themes.

The TabbedView renders the presentation of the model.

The TabbedViewModel stores the tab data as name, content, buttons or any dynamic value.

Get started

The default theme is TabbedViewTheme.light().

    List<TabData> tabs = [];
    for (var i = 1; i < 7; i++) {
      Widget tabContent = Center(child: Text('Content $i'));
      tabs.add(TabData(text: 'Tab $i', content: tabContent));
    }
    TabbedWiew tabbedView = TabbedWiew(controller: TabbedWiewController(tabs));

Content builder

It allows creating the contents of the tab dynamically during the selection event.

    List<TabData> tabs = [
      TabData(text: 'Tab 1'),
      TabData(text: 'Tab 2'),
      TabData(text: 'Tab 3')
    ];

    TabbedWiew tabbedView = TabbedWiew(
        controller: TabbedWiewController(tabs),
        contentBuilder: (BuildContext context, int tabIndex) {
          int i = tabIndex + 1;
          return Center(child: Text('Content $i'));
        });

Close button tooltip

    List<TabData> tabs = [
      TabData(text: 'Tab 1'),
      TabData(text: 'Tab 2'),
      TabData(text: 'Tab 3')
    ];
    TabbedWiew tabbedView = TabbedWiew(
        controller: TabbedWiewController(tabs),
        closeButtonTooltip: 'Click here to close the tab');

Tab

Extra button

    TabData tab = TabData(text: 'Tab', buttons: [
      TabButton(icon: Icons.star, onPressed: () => print('Hello!'))
    ]);
    TabbedWiew tabbedView = TabbedWiew(controller: TabbedWiewController([tab]));

Extra button - overriding theme color

    var tabs = [
      TabData(text: 'Tab 1'),
      TabData(text: 'Tab 2', buttons: [
        TabButton(
            icon: Icons.star,
            color: Colors.green,
            onPressed: () => print('Hello!'))
      ])
    ];
    TabbedWiew tabbedView = TabbedWiew(controller: TabbedWiewController(tabs));

Removing the close button

    var tabs = [
      TabData(text: 'Tab'),
      TabData(text: 'Non-closable tab', closable: false)
    ];
    TabbedWiew tabbedView = TabbedWiew(controller: TabbedWiewController(tabs));

Tab close listener

    bool _onTabClosing(int tabIndex) {
      if (tabIndex == 0) {
        print('The tab $tabIndex is busy and cannot be closed.');
        return false;
      }
      print('Closing tab $tabIndex...');
      return true;
    }

    List<TabData> tabs = [
      TabData(text: 'Tab 1'),
      TabData(text: 'Tab 2'),
      TabData(text: 'Tab 3')
    ];
    TabbedWiew tabbedView = TabbedWiew(
        controller: TabbedWiewController(tabs), onTabClosing: _onTabClosing);

Themes

Tab

Text style

    var tabs = [
      TabData(text: 'Tab 1'),
      TabData(text: 'Tab 2'),
    ];

    TabbedViewTheme theme = TabbedViewTheme.light();
    theme.tabsArea.tab.textStyle = TextStyle(fontSize: 20, color: Colors.blue);

    TabbedWiew tabbedView =
        TabbedWiew(controller: TabbedWiewController(tabs), theme: theme);

Alignment

    var tabs = [
      TabData(text: 'Tab 1'),
      TabData(text: 'Tab 2'),
    ];

    TabbedViewTheme theme = TabbedViewTheme.light();
    theme.tabsArea.tab
      ..textStyle = TextStyle(fontSize: 20)
      ..verticalAlignment = VerticalAlignment.top;

    TabbedWiew tabbedView =
        TabbedWiew(controller: TabbedWiewController(tabs), theme: theme);

Tabs area

Color

• The default TabsAreaTheme color is null.

    var tabs = [TabData(text: 'Tab 1'), TabData(text: 'Tab 2')];

    TabbedViewTheme theme = TabbedViewTheme.minimalist();
    theme.tabsArea.color = Colors.green[100];

    TabbedWiew tabbedView =
        TabbedWiew(controller: TabbedWiewController(tabs), theme: theme);

Tab gaps

• Gap before the tabs (allows negative value).
• Gap between tabs (allows negative value).
• Minimum gap after tabs. Separates the last tab and the buttons area.

    List<TabData> tabs = [];
    for (var i = 1; i < 7; i++) {
      tabs.add(
          TabData(text: 'Tab $i', content: Center(child: Text('Content $i'))));
    }

    TabbedViewTheme theme = TabbedViewTheme.light();
    theme.tabsArea
      ..initialGap = 20
      ..middleGap = 5
      ..minimalFinalGap = 5;

    TabbedWiew tabbedView =
        TabbedWiew(controller: TabbedWiewController(tabs), theme: theme);

Buttons area

Button icon for the hidden tabs menu

    List<TabData> tabs = [];
    for (var i = 1; i < 7; i++) {
      tabs.add(TabData(text: 'Tab $i'));
    }

    TabbedViewTheme theme = TabbedViewTheme.light();
    theme.tabsArea.buttonsArea.hiddenTabsMenuButtonIcon =
        Icons.arrow_drop_down_circle_outlined;

    TabbedWiew tabbedView =
        TabbedWiew(controller: TabbedWiewController(tabs), theme: theme);

Predefined themes

Dark theme

    TabbedWiew tabbedView =
            TabbedWiew(controller: controller, theme: TabbedViewTheme.dark());

Mobile theme

    TabbedWiew tabbedView =
        TabbedWiew(controller: controller, theme: TabbedViewTheme.mobile());

Creating new theme

It is possible to create an entire theme from scratch.

    var tabs = [
      TabData(text: 'Tab 1'),
      TabData(text: 'Tab 2'),
      TabData(text: 'Tab 3')
    ];

    TabbedViewTheme theme = TabbedViewTheme();
    theme.tabsArea
      ..border = Border(bottom: BorderSide(color: Colors.green[700]!, width: 3))
      ..middleGap = 6;

    Radius radius = Radius.circular(10.0);
    BorderRadiusGeometry? borderRadius =
        BorderRadius.only(topLeft: radius, topRight: radius);

    theme.tabsArea.tab
      ..padding = EdgeInsets.fromLTRB(10, 4, 10, 4)
      ..buttonsOffset = 8
      ..decoration = BoxDecoration(
          shape: BoxShape.rectangle,
          color: Colors.green[100],
          borderRadius: borderRadius)
      ..selectedStatus.decoration =
          BoxDecoration(color: Colors.green[200], borderRadius: borderRadius)
      ..highlightedStatus.decoration =
          BoxDecoration(color: Colors.green[50], borderRadius: borderRadius);

    TabbedWiew tabbedView =
        TabbedWiew(controller: TabbedWiewController(tabs), theme: theme);

Agenda for the next few days

• Complete documentation and examples to cover all available features.
• Release the final version (1.0.0). The API may have some small changes.