Android增量分数mysql php

Question

我正在尝试将android应用程序中的mysql表中的值增加1。一旦成功，我正在尝试推出一项新活动。我在下面包含了android和php代码。单击按钮时DB正确地更新，但我无法弄清楚新活动未启动的原因。我确定它的东西很小但我无法弄清楚，任何帮助都会非常感激。我已将新活动包含在清单中。

Android - MainActivity

package com.example.conn.updatescore;

import android.app.ProgressDialog;
import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.Toast;

import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;

import org.json.JSONException;
import org.json.JSONObject;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;

public class MainActivity extends AppCompatActivity {

    private Button updateScore;
    private RequestQueue requestQueue;
    private static final String URL = "http://192.168.0.14/updatemysql/update_control.php";
    private StringRequest request;
    public static final String teamName = "Justice league";


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        updateScore = (Button) findViewById(R.id.updateScore);

        requestQueue = Volley.newRequestQueue(this);

        updateScore.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {


                request = new StringRequest(Request.Method.POST, URL, new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {
                        try {
                            JSONObject jsonObject = new JSONObject(response);
                            if (jsonObject.names().get(0).equals("success")) {
                                Toast.makeText(getApplicationContext(), "SUCCESS " + jsonObject.getString("success"), Toast.LENGTH_SHORT).show();
                                startActivity(new Intent(getApplicationContext(), SuccessActivity.class));
                            } else {
                                Toast.makeText(getApplicationContext(), "Error" + jsonObject.getString("error"), Toast.LENGTH_SHORT).show();
                            }
                        } catch (JSONException e) {
                            e.printStackTrace();
                        }
                    }

                }, new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {

                    }
                }){
                    @Override
                    protected Map<String, String> getParams() throws AuthFailureError {
                        HashMap<String,String> hashMap = new HashMap<String, String>();
                        hashMap.put("name", teamName.toString());

                        return hashMap;
                    }
                };

                requestQueue.add(request);
            }
        });
    }
}

SuccessActivity

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;

/**
 * Created by conn on 09/08/2017.
 */

public class SuccessActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.success);
    }
}

update_control.php

class Update {

    private $db;
    private $connection;

    function __construct(){

        $this->db = new DB_Connection();
        $this->connection = $this->db->get_connection();
    }

    public function update_score($name){

        $query = " UPDATE `team` SET `member` = member+1 WHERE name = '$name'";
        $is_inserted = mysqli_query($this->connection, $query);

        if ($is_inserted ==1){
            $json['success'] = 'score updated' .$name;

        }else {
            $json['error'] = 'failed';
        }

        echo json_encode($json);
        mysqli_close($this->connection);
    }

}

$update = new Update();

if (isset($_POST['name'])){
    $name = $_POST['name'];

    if (!empty($name)){
        $update->update_score($name);
    } else{
        echo ("name not set");
    }

}