HarmonyOS 鸿蒙Next string to image

发布于 1周前 作者 sinazl 来自 鸿蒙OS

HarmonyOS 鸿蒙Next string to image


我拿到以下这个字符串，怎么将它转成换给Image组件显示
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

 


更多关于HarmonyOS 鸿蒙Next string to image的实战系列教程也可以访问 https://www.itying.com/category-93-b0.html

Harmonyos Next教程
2 回复 
@Entry
@Component
struct ImageTest {
  @State message: string = 'Hello World';
  @State imageStr: string =
    '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';

  build() {

    Row() {

      Column() {

        Image("data:image/png;base64," + this.imageStr + "").height('100vp')

      }

      .width('100%')

      .justifyContent(FlexAlign.Start)

    }

    .height('100%')

  }
}

更多关于HarmonyOS 鸿蒙Next string to image的实战系列教程也可以访问 https://www.itying.com/category-93-b0.html


在HarmonyOS鸿蒙系统中，将字符串（string）转换为图像（image）的功能通常不是直接由系统API提供的标准功能，因为这涉及到字符串内容的解析以及图像生成或渲染的复杂过程。以下是一个简要说明和可能的实现途径：

  1. 字符串内容解析：首先，需要确定字符串的内容是否可以转换为图像。如果字符串是图像数据的编码（如Base64），则可以直接解码得到图像数据。如果字符串是图像文件的路径或URL，则需要通过文件系统或网络访问图像。

  2. 图像生成或加载：

    • 如果字符串是图像数据的编码，解码后可以使用鸿蒙系统提供的图像加载库（如BitmapFactory）来创建图像对象。
    • 如果字符串是图像文件路径或URL，可以使用鸿蒙的文件I/O或网络I/O功能读取图像数据，并使用相应的图像加载库加载图像。

  3. 显示图像：加载图像后，可以使用鸿蒙的UI框架（如Canvas或ImageView）将图像显示在界面上。

请注意，具体的实现细节会依赖于鸿蒙系统的版本和API的可用性。如果使用的是特定的鸿蒙开发框架或库，可能还需要参考相应的文档或示例代码。

如果问题依旧没法解决请联系官网客服,官网地址是：https://www.itying.com/category-93-b0.html

回到顶部