31-apptabs

README

AppTabs Example

This example demonstrates the AppTabs container, which provides tabbed navigation for your application.

Running the Example

go run main.go

Or from the repository root:

go run ./examples/31-apptabs

Features Demonstrated

Basic Tab Creation

• Creating tab items with container.NewTabItem(text, content)
• Building AppTabs with container.NewAppTabs(tab1, tab2, tab3)
• Multiple tabs with different content

Tab Navigation

• SelectIndex(index) - Switch to a specific tab by index
• SelectedIndex() - Get the currently selected tab index
• Selected() - Get the currently selected TabItem

Dynamic Tab Management

• Append(tabItem) - Add new tabs at runtime
• Remove(tabItem) - Remove a specific tab
• RemoveIndex(index) - Remove tab by index

Tab State Control

• EnableIndex(index) - Enable a disabled tab
• DisableIndex(index) - Disable a tab (grayed out, not selectable)
• EnableItem(tabItem) - Enable by TabItem reference
• DisableItem(tabItem) - Disable by TabItem reference

Visibility Control

• Hide() - Hide the entire tab container
• Show() - Show the tab container

Usage Pattern

// Create tab content
let content1 = widget.NewLabel("Tab 1 content")
let content2 = widget.NewLabel("Tab 2 content")

// Create tab items
let tab1 = container.NewTabItem("First", content1)
let tab2 = container.NewTabItem("Second", content2)

// Create tabs container
let tabs = container.NewAppTabs(tab1, tab2)

// Control tabs programmatically
tabs.SelectIndex(0)           // Select first tab
let current = tabs.SelectedIndex()  // Get current index
tabs.DisableIndex(1)          // Disable second tab
tabs.Append(newTab)           // Add another tab

Key Concepts

• TabItem - Represents a single tab with text label and content
• AppTabs - Container that manages multiple TabItem instances
• Dynamic Management - Tabs can be added, removed, enabled, and disabled at runtime
• Callbacks - Tab selection can trigger status updates or other actions
• Layout Integration - Tabs work with other containers (Border, VBox, etc.)

Tips

• Tab indices are zero-based (first tab is index 0)
• Removing a tab will shift indices of tabs after it
• Disabled tabs appear grayed out and cannot be selected
• Each tab can contain any Fyne widget or container
• Use descriptive tab names to help users navigate