使用ngb-carousel在單個滑塊頁面中顯示多個圖像

Question

我正在使用Angular 6和ng-bootstrap並嘗試使用輪播。

輪播工作正常，但無法在一個滑塊中顯示4張圖像。 在每個滑塊中顯示1張圖像。

這是通過API響應傳來的數據：

  games= [{"title_id":1,"title_name":"MIssion Impossible","title_img":"https://media.services.cinergy.ch/media/box1600/f1323e57a2c4ea79dde779a89d561f85bfbe6bf5.jpg","genres":[{"id":1,"name":"Action"},{"id":2,"name":"Adventure"}]},{"title_id":2,"title_name":"Matrix","title_img":"https://www.sideshowtoy.com/assets/products/903302-neo/lg/the-matrix-neo-sixth-scale-figure-hot-toys-903302-01.jpg","genres":[{"id":1,"name":"Action"},{"id":2,"name":"Adventure"},{"id":6,"name":"Fantasy"}]},{"title_id":3,"title_name":"Avengers","title_img":"http://media.comicbook.com/2018/03/avengers-infinity-war-poster-all-iron-man-version-1096449.jpeg","genres":[{"id":1,"name":"Action"},{"id":2,"name":"Adventure"},{"id":6,"name":"Fantasy"}]},{"title_id":4,"title_name":"Stargate SG-1","title_img":"https://image.tmdb.org/t/p/w300_and_h450_bestv2/rst5xc4f7v1KiDiQjzDiZqLtBpl.jpg","genres":[{"id":1,"name":"Action"},{"id":5,"name":"Drama"},{"id":2,"name":"Adventure"},{"id":9,"name":"Sci Fi"}]},{"title_id":5,"title_name":"Scooby Doo","title_img":"https://images-na.ssl-images-amazon.com/images/G/01/aplusautomation/vendorimages/1cdd3ea2-f14f-416b-9aaa-644a9a01ad8c.jpg._CB321085566_.jpg","genres":[{"id":1,"name":"Action"},{"id":10,"name":"Thriller"},{"id":6,"name":"Fantasy"}]}];

這是我的component.html代碼：

<ngb-carousel *ngIf="games" [showNavigationArrows]="showNavigationArrows" [showNavigationIndicators]="showNavigationIndicators">
    <ng-template ngbSlide *ngFor="let image of games" style="">
        <div class="" style="">
            <div class="col-xs-3 col-md-3 col-lg-3 col-sm-6">
                <img class="" src="{{image.title_img}}" width="" >
            </div>
        </div>
    </ng-template>
</ngb-carousel>

每張幻燈片的每張圖片都來了。

我嘗試使用以下靜態圖片，

<ngb-carousel *ngIf="games" [showNavigationArrows]="showNavigationArrows" [showNavigationIndicators]="showNavigationIndicators">
    <ng-template ngbSlide  style="">
        <div class="">
            <img src="https://media.services.cinergy.ch/media/box1600/f1323e57a2c4ea79dde779a89d561f85bfbe6bf5.jpg" width="200px" class="img-responsive" style="float:left">
            <img src="https://www.sideshowtoy.com/assets/products/903302-neo/lg/the-matrix-neo-sixth-scale-figure-hot-toys-903302-01.jpg"  width="200px" class="img-responsive" style="float:left">
            <img src="http://media.comicbook.com/2018/03/avengers-infinity-war-poster-all-iron-man-version-1096449.jpeg"  width="200px"  class="img-responsive" style="float:left">
        </div>
    </ng-template>
    <ng-template ngbSlide  style="">
        <div class="">
            <img src="https://media.services.cinergy.ch/media/box1600/f1323e57a2c4ea79dde779a89d561f85bfbe6bf5.jpg" width="200px" class="img-responsive" style="float:left">
            <img src="https://www.sideshowtoy.com/assets/products/903302-neo/lg/the-matrix-neo-sixth-scale-figure-hot-toys-903302-01.jpg"  width="200px" class="img-responsive" style="float:left">
            <img src="http://media.comicbook.com/2018/03/avengers-infinity-war-poster-all-iron-man-version-1096449.jpeg"  width="200px"  class="img-responsive" style="float:left">
        </div>
    </ng-template>
</ngb-carousel>

結果是：

但是，在移動設備中，顯示的數字低於1。 我只需要顯示一張圖像，單擊箭頭導航時應顯示下一張圖像

Answer 1

這是一種可能的解決方案：

單獨的台式機和移動版：

將桌面版本與移動版本分開，每個版本都有一個ngb輪播，並通過* ngIf選擇。 * ngIf檢查定義的變量mobile ，（請參見下面的html）：

ngOnInit() {
  if (window.screen.width === 360) { // 768px portrait
    this.mobile = true;
  }
}

有關此問題的更多信息。

滑桿

對於移動版本，請使用您的代碼（我在下面進行了集成）

對於具有多個圖像的桌面：

將您的數組划分為多維數組（第一維用於幻燈片，第二維用於圖像）。 如果您有2張包含3張圖片的幻燈片，則您的數組將是2 * 3的一張。

this.games = ["a", "b", "c", "d", "e"];
this.gamesFormatted = [];
var j = -1;

for (var i = 0; i < this.games.length; i++) {
    if (i % 3 == 0) {
        j++;
        this.gamesFormatted[j] = [];
        this.gamesFormatted[j].push(this.games[i]);
    }
    else {
        this.gamesFormatted[j].push(this.games[i]);
    }
}

顯示帶有雙環的輪播：

<div *ngIf="games">
    <!-- Mobile section : one image per slide -->
    <ngb-carousel *ngIf="mobile" [showNavigationArrows]="showNavigationArrows" [showNavigationIndicators]="showNavigationIndicators">
        <ng-template ngbSlide *ngFor="let image of games">
            <div class="" style="">
                <div class="col-xs-3 col-md-3 col-lg-3 col-sm-6">
                    <img class="" src="{{image.title_img}}">
                </div>
            </div>
        </ng-template>
    </ngb-carousel>

    <!-- Desktop section : multiple images per slide -->
    <ngb-carousel *ngIf="!mobile" [showNavigationArrows]="showNavigationArrows" [showNavigationIndicators]="showNavigationIndicators">
        <ng-template ngbSlide *ngFor="let group of gamesFormatted">
            <div class="" style="" *ngFor="let game of group">
                    <img class="" src="{{game.title_img}}">
            </div>
        </ng-template>
    </ngb-carousel>
</div>

我沒有測試html部分，因此肯定有待改進。

Answer 2

你有沒有這樣嘗試過：

---

`<ngb-carousel *ngIf="games" [showNavigationArrows]="showNavigationArrows" [showNavigationIndicators]="showNavigationIndicators">
  <ng-template ngbSlide  style="">
    <div class="">
      <img src="https://media.services.cinergy.ch/media/box1600/f1323e57a2c4ea79dde779a89d561f85bfbe6bf5.jpg" width="200px" class="img-responsive" style="float:left">
    </div>
    <div class="">
      <img src="https://www.sideshowtoy.com/assets/products/903302-neo/lg/the-matrix-neo-sixth-scale-figure-hot-toys-903302-01.jpg"  width="200px" class="img-responsive" style="float:left">
    </div>
    <div class="">
      <img src="http://media.comicbook.com/2018/03/avengers-infinity-war-poster-all-iron-man-version-1096449.jpeg"  width="200px"  class="img-responsive" style="float:left">
     </div>
  </ng-template>
</ngb-carousel>
`