我试图从mysql数据库填充微调器，但微调器上没有显示任何内容。当我查看日志时，它显示 Attempted to finish an input event but the input event receiver has already been disposed. 这是我的代码，我不知道哪部分错了。
请帮帮我！谢谢您
我的数组如下所示：

{"result":[{"id_jenis_user":"1","jenis_user":"Tenant"},{"id_jenis_user":"2","jenis_user":"Pemilik Acara"}]}

活动.java

public class RegisterActivity extends AppCompatActivity {
    Spinner sp_daftar_sbg;
//An ArrayList for Spinner Items
    private ArrayList<String> jenis_user_list;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);
        jenis_user_list = new ArrayList<String>();
        sp_daftar_sbg = (Spinner)findViewById(R.id.sp_daftar_sbg);
        JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST,
                Server.DATA_URL, null, new Response.Listener<JSONObject>() {
            @Override
            public void onResponse(JSONObject response) {
                try {
                    JSONArray jsonArray = response.getJSONArray("result");
                    for (int i = 0; i < jsonArray.length(); i++) {
                        JSONObject jsonObject = jsonArray.getJSONObject(i);
                        String jenis_user = jsonObject.optString(Server.TAG_JENIS_USER);
                        jenis_user_list.add(jenis_user);
                        ArrayAdapter<String> jenisuserAdapter = new ArrayAdapter<>(RegisterActivity.this,
                                android.R.layout.simple_spinner_item, jenis_user_list);
                        jenisuserAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
                        sp_daftar_sbg.setAdapter(jenisuserAdapter);
                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
            }
        });
        RequestQueue requestQueue = Volley.newRequestQueue(this);
        requestQueue.add(jsonObjectRequest);
}