HarmonyOS Image组件加载网络图片，是否有占位图相关API?

/** 
 * Set the imageView `image` with an `url` and a placeholder. 
 * 
 * The download is asynchronous and cached. 
 * 
 * @param url         The url for the image. 
 * @param placeholder The image to be set initially, until the image request finishes. 
 * @see sd_setImageWithURL:placeholderImage:options: 
 */ 
- (void)sd_setImageWithURL:(nullable NSURL *)url 
placeholderImage:(nullable UIImage *)placeholder NS_REFINED_FOR_SWIFT;
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