以json格式检索Firebase数据库

Question

我已经从firebase实时数据库中获取数据。现在我想以json格式获取firebase数据。

这是我从firebase手动下载的json，但我想通过我的应用程序获取它。我想显示一个用户的两个按钮，可以像在xml中一样在textview中查看数据，并单击另一个按钮用户即可可以获取所有数据的json。

{
 "Answers" : {
      "0582019101653" : {
        "06-August-201917:17:15" : {
          "Cheers 1" : [ "Jdj", "72728" ],
          "Cheers 2" : [ "Jdjjd", "83883", "Udxj", "Jxj" ],
          "Q1" : [ "Yes" ],
          "Q2" : [ "No\n" ],
          "Radi1" : [ "Ywu" ],
          "Radio2" : [ "6272" ]
        },
        "06-August-201917:22:40" : {
          "Cheers 1" : [ "Jdj" ],
          "Cheers 2" : [ "83883" ],
          "Q1" : [ "New" ],
          "Q2" : [ "" ],
          "Radi1" : [ "Jdje" ],
          "Radio2" : [ "6272" ]
        }
      }
    },
}