从JSON Android获取Int值

Question

我得到的字符串值如下所示：

[{
  "data": [127, 145, 225, 167, 200, 173, 411, 505, 457, 243, 226, 156, 298, 237, 425, 405, 391, 258]
}]

[127, 145, 225, 167, 200, 173, 411, 505, 457, 243, 226, 156, 298, 237, 425, 405, 391, 258]

try {
  final JSONObject obj = new JSONObject(s);

  final JSONArray geodata = obj.getJSONArray("data");
  final JSONObject person = geodata.getJSONObject(0);
  Log.d("myListjson", String.valueOf(person.getString("data")));

} catch (JSONException e) {
  e.printStackTrace();
}

Answer 1

您访问元素的方式是错误的。您应该使用循环访问JSONArray中的每个元素

这应该行得通

String s = "[{\"data\":[127, 145, 225, 167, 200, 173, 411, 505, 457, 243, 226, 156, 298, 237, 425, 405, 391, 258]}]";
        try {
            final JSONObject obj = new JSONObject(s);
            final JSONArray geodata = obj.getJSONArray("data");
            for(int i=0; i < geodata.length(); i++){
                int number = (int) geodata.get(i);
                Log.d("Number", String.valueOf(number));
            }
        } catch (JSONException e) {
            e.printStackTrace();
        }