【问题标题】:Ionic 4 Card Image Overlap离子 4 卡图像重叠
【发布时间】:2019-10-10 21:25:03
【问题描述】:

如果在 Ionic 上可行,我正在寻找解决方案? 我已经使用了 z-index,但什么也没发生。

Overlap Image on Ionic Card Content

HTML

<ion-card>
  <ion-card-content>
     <ion-img src="./assets/img/pizza-manager.png"></ion-img>
         </ion-card-content>
         <ion-card-header>
            sample
         </ion-card-header>
</ion-card>             

CSS

ion-card {
  position: relative;
  height:30vh;
  width: 50vw;
  z-index: -1;
}

ion-card-content {
  height: 70%;
  z-index: -1;
}

ion-img {
  height: 20vh;
  width: auto;
  z-index: 2;
  position: absolute;
  margin-top: -50px;
}

我的结果:

Result

【问题讨论】:

    标签: angular ionic-framework ionic4


    【解决方案1】:

    看起来溢出被隐藏了。

    我删除了你的大部分代码,只是使用了溢出设置来获得你想要的东西:

    //重叠-card.page.html

    <ion-header>
      <ion-toolbar>
        <ion-title>overlapping-card</ion-title>
      </ion-toolbar>
    </ion-header>
    
    <ion-content>
      <br>
      <br>
      <br>
      <br>
      <ion-card>
        <ion-card-content>
          <ion-img src="./assets/pizza.png"></ion-img>
        </ion-card-content>
        <ion-card-header>
          sample
        </ion-card-header>
      </ion-card>
    </ion-content>
    

    //重叠卡.page.scss

    ion-card{
        height:30vh;
        width: 50vw;
        overflow: visible;    
    }
    ion-card-content{
        height: 70%;
        overflow: visible;    
    }
    ion-img{
        height: 20vh;
        width: auto;
        margin-top: -75px;
    }
    

    注意:没有ion-img 的高度我得到了一些奇怪的效果,所以你应该确保设置它。

    【讨论】:

      【解决方案2】:

      请尝试此代码,这将帮助您解决问题。

      ion-card.main-card{
        background: #D29034;
        border-radius: 4px 100px 10px 10px;
        max-width:500px;
        overflow: visible;
        margin-top: 80px;
      }
      .card-img{
        max-width:80px;
      }
      .card-main-content{
        background: #F3F0F1;
        border-radius: 4px 60px 10px 10px;
      }
      .card-amount{
        --background: transparent;
        --border-color: transparent;
        color: #fff;
      }
      .card-image-blk{
        --background: transparent;
        --border-color: transparent;
        margin-bottom: -30px;
        margin-top: -30px;
      }
       <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@ionic/core@4.7.4/css/ionic.bundle.css" />
        <script type="module" src="https://cdn.jsdelivr.net/npm/@ionic/core@4.7.4/dist/ionic/ionic.esm.js"></script>
        <script nomodule src="https://cdn.jsdelivr.net/npm/@ionic/core@4.7.4/dist/ionic/ionic.js"></script>
        <ion-app>
          <ion-content>
            <ion-card class="main-card">
              <ion-card-content class="card-main-content">
                <ion-item class="card-image-blk">
                <img class="card-img" src="https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Vector_cup_of_coffee.svg/1094px-Vector_cup_of_coffee.svg.png" slot="end" />
                  </ion-item>
              <ion-card-header>
                <ion-card-title>Madison, WI</ion-card-title>
              </ion-card-header>
              <ion-card-content>
                Founded in 1829 on an isthmus between Lake Monona and Lake Mendota, Madison was named the capital of the Wisconsin Territory in 1836.
              </ion-card-content>
                </ion-card-content>
              <ion-card-content>
          <ion-item class="card-amount">
          <ion-label>Card Button Item 2</ion-label>
            <ion-icon name="walk" slot="end"></ion-icon>
        </ion-item>
        </ion-card-content>
            </ion-card>
          </ion-content>
        </ion-app>
       

      【讨论】:

        【解决方案3】:

        page.html

        <ion-card>
           <ion-card-header>
              sample
           </ion-card-header>
        </ion-card>   
        
        <ion-img src="../../assets/images/feature-bootstrap.png"></ion-img>
        

        page.scss

        ion-card{
            position: relative;
            height:250px;
            width: 250px;
        
        ion-card-content{
            height: 70%;
            z-index: -1;
          }
        }
        ion-img{
            width: 200px;
            position: absolute;
            top: 0;
            right: -6px;
        }
        

        【讨论】:

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