sinch即時消息可寫添加額外字段

Question

嗨如何將額外的字段添加到可寫入將附加內容傳遞到數據映射，例如我想能夠傳遞圖像的url從而允許圖像共享，如何去做，上午大多JS開發，所以沒有真正如何實現添加新功能的工作sinch服務器

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

使用的addHeader到額外的東西添加到您的消息

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