はじめに

　
「UGUI Super ScrollView」ではページビューを作ることができます

作成例は上記の GitHub リポジトリの
「Assets/Example/07_PageView/Example.unity」シーンで確認できます

作成例

f:id:baba_s:20180310182307g:plain

ソースコード

スクロールの項目で使用するデータ

public sealed class ListItemData
{
    private readonly string m_name;

    public string Name { get { return m_name; } }

    public ListItemData( string name )
    {
        m_name = name;
    }
}

スクロールの項目

using UnityEngine;
using UnityEngine.UI;

[DisallowMultipleComponent]
public sealed class ListItemUI : MonoBehaviour
{
    [SerializeField] private Button m_buttonUI  = null;
    [SerializeField] private Text   m_textUI    = null;

    private ListItemData m_data;

    private void Awake()
    {
        m_buttonUI.onClick.AddListener( () => print( m_data.Name ) );
    }

    public void SetDisp( ListItemData data )
    {
        m_data = data;

        m_textUI.text = data.Name;
    }
}

ドットの UI

using UnityEngine;

[DisallowMultipleComponent]
public sealed class DotUI : MonoBehaviour
{
    [SerializeField] private GameObject m_smallUI   = null;
    [SerializeField] private GameObject m_largeUI   = null;

    public void SetDisp( bool isLarge )
    {
        m_smallUI.SetActive( !isLarge );
        m_largeUI.SetActive(  isLarge );
    }
}

スクロールビュー

using SuperScrollView;
using System.Linq;
using UnityEngine;

[DisallowMultipleComponent]
public sealed class Example : MonoBehaviour
{
    [SerializeField] private LoopListView2  m_view      = null;
    [SerializeField] private GameObject     m_original  = null;
    [SerializeField] private DotUI[]        m_dotUIList = null;

    private ListItemData[] m_list;

    private void Start()
    {
        m_list = Enumerable
            .Range( 0, 5 )
            .Select( c => ( c + 1 ).ToString( "0000" ) )
            .Select( c => new ListItemData( c ) )
            .ToArray()
        ;

        var initParam = new LoopListViewInitParam
        {
            mSmoothDumpRate     = 0.1f  ,
            mSnapVecThreshold   = 99999 ,
        };
        m_view.mOnSnapNearestChanged = OnSnapNearestChanged;
        m_view.InitListView( m_list.Length, OnUpdate, initParam );
    }

    private void OnSnapNearestChanged( LoopListView2 view, LoopListViewItem2 item )
    {
        int currentIndex = m_view.CurSnapNearestItemIndex;
        int count = m_list.Length;
        if ( currentIndex < 0 || count <= currentIndex ) return;
        for ( int i = 0; i < count; i++ )
        {
            var dotUI = m_dotUIList[ i ];
            dotUI.SetDisp( currentIndex == i );
        }
    }

    private LoopListViewItem2 OnUpdate( LoopListView2 view, int index )
    {
        if ( index < 0 || m_list.Length <= index ) return null;

        var data = m_list[ index ];
        var itemObj = view.NewListViewItem( m_original.name );
        var itemUI = itemObj.GetComponent<ListItemUI>();

        itemUI.SetDisp( data );

        return itemObj;
    }

    private void OnGUI()
    {
        var option = GUILayout.Width( 64 );
        GUILayout.BeginHorizontal();
        if ( GUILayout.Button( "←", option ) )
        {
            SetSnapIndex( -1 );
        }
        if ( GUILayout.Button( "→", option ) )
        {
            SetSnapIndex( 1 );
        }
        GUILayout.EndHorizontal();
    }

    private void SetSnapIndex( int offset )
    {
        int currentIndex = m_view.CurSnapNearestItemIndex;
        int nextIndex = currentIndex + offset;
        if ( nextIndex < 0 || m_list.Length <= nextIndex ) return;
        m_view.SetSnapTargetItemIndex( nextIndex );
    }
}