public function actionIndex() {
  $dataProvider = new ActiveDataProvider([
    'query' => Diary::find()->orderBy('day'),
    'pagination' => [//分页
      'pagesize' => 4
    ]
  ]);
  return $this->render('index', [
    'dataProvider' => $dataProvider
  ]);
}

<?= ListView::widget([
  'dataProvider' => $dataProvider,//数据提供器
  'itemView' => '_diary',//指定item视图（该视图文件与当前视图在同一个目录下)
  'viewParams' => [//传参数给每一个item
    'moodCfg' => Mood::getAll()
  ],
  'layout' => '{items}<div class="col-lg-12 sum-pager">{summary}{pager}</div>',//整个ListView布局
  'itemOptions' => [//针对渲染的单个item
    'tag' => 'div',
    'class' => 'col-lg-3'
  ],
  /*
  'options' => [//针对整个ListView
    'tag' => 'div',
    'class' => 'col-lg-3'
  ],
  */
  'pager' => [
    //'options' => ['class' => 'hidden'],//关闭分页（默认开启）
    /* 分页按钮设置 */
    'maxButtonCount' => 5,//最多显示几个分页按钮
    'firstPageLabel' => '首页',
    'prevPageLabel' => '上一页',
    'nextPageLabel' => '下一页',
    'lastPageLabel' => '尾页'
  ]
]);?>

<div class="item">
  <h4 style="font-weight:bold"><?= Html::encode($model->title ? $model->title : '（无题）') ?></h4>
   
  <p style="font-size:13px">
    <span style="color:orangered"><?= date('Y.m.d', $model->day) ?></span><br>
    <span style="color:#999">心情：<?= $moodCfg[$model->mood] ?></span>//这里访问ListView的'viewParams'参数传过来的参数$moodCfg
  </p>
   
  <div style="margin:15px 0">
        
    <?php echo HtmlPurifier::process(mb_substr($model->content, 0, 25).'......'); ?>
  </div>
   
  <p class="info">
    添加：<?= date('Y-m-d H:i:s', $model->created_at) ?><br>
    最后修改：<?= date('Y-m-d H:i:s', $model->updated_at) ?>
  </p>
   
  <div style="text-align:right">
    <?= Html::a('<span class="glyphicon glyphicon-eye-open"></span>', ['view', 'id' => $model->id], ['title' => '查看']) ?>
    <?= Html::a('<span class="glyphicon glyphicon-pencil"></span>', ['upcreate', 'id' => $model->id], ['title' => '修改']) ?>
    <?= Html::a('<span class="glyphicon glyphicon-trash"></span>', ['delete', 'id' => $model->id], [
      'title' => '删除',
      'data' => [
        'confirm' => '您确定真的要删除 '.date('Y年m月d日', $model->day).' 的日记吗？',
        'method' => 'post',
      ]
    ]) ?>
  </div>
</div>