分层图标处理开发步骤

import { LayeredDrawableDescriptor } from '@ohos.arkui.drawableDescriptor';
import { hdsDrawable } from '@kit.UIDesignKit';
import image from '@ohos.multimedia.image';
import { BusinessError } from '@kit.BasicServicesKit';
import resourceManager from ​​'@ohos.resourceManager';
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（例如：drawable.json）。
{
  "layered-image":
  {
背景图
前景图
  }
}
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private getHdsLayeredIcon(): image.PixelMap | null {
    try {
      return hdsDrawable.getHdsLayeredIcon(this.bundleName, this.layeredDrawableDescriptor, 48, false);
    } catch (err) {
      console.error(`getHdsLayeredIcon failed: ${JSON.stringify(err)}}`);
      return null;
    }
  }
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