sinch 即时消息可写添加额外字段

Question

嗨，如何向可写字段添加额外的字段以将其他内容传递给数据映射，例如，我希望能够传递图像的 url 从而允许图像共享，如何进行，主要是 js 开发，所以不是真的如何实现添加新功能以工作 sinch 服务器

public final class WritableMessage {
private static final int HEADER_MAX_SIZE = 1024;
private final String messageId;
private String textBody;
private string extraContent;// added here for passing img url
private List<String> recipientIds;
private Map<String, String> headers;
private int headerSize;

public WritableMessage(String recipientUserId, String textBody, extraContent) {
    this();
    this.addExtra(extraContent); // but the sinch doesnt allow overide
    this.addRecipient(recipientUserId);
    this.setTextBody(textBody);
}

Answer 1

使用 addHeader 为您的消息添加额外的内容

public WritableMessage(String recipientUserId, String textBody, string imageUrl) {
    this();
    this.addHeader("imageUrl", imageUrl); 
    this.addRecipient(recipientUserId);
    this.setTextBody(textBody);
}