通过OneSignal发送带有口音（á，é，í）的推送通知的问题

Question

每当我尝试通过OneSignal发送带有口音（á，é，í）的推送通知时，我的手机上都会出现空符号。

Answer 1

我固定的编码我的信息这一问题作为UTF-8：

String payload = "{" 
    + "\"app_id\": \"" + APP_ID + "\"," 
    + "\"filters\": [{\"field\": \"tag\", \"key\": \"company\", \"relation\": \"=\", \"value\": \"" + companyID + "\"}]," 
    + "\"data\": {\"foo\": \"bar\"}," 
    + "\"contents\": {\"en\": \" " + notification + "\"}" 
    + "}"; 

byte[] data = payload.getBytes("UTF-8"); 

我还设置Content-Type为application/json; charset=UTF-8。