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我正在使用MySQL来显示数据，读取和更新。我试图使其显示在编辑文本中，但它只是读取ID，而不会在编辑文本中显示其他数据（例如，数字，信息和计时器），我试图修复代码，但我仍然不知道我在哪里出错做了。

数据库：db_asetnfc 表格：tb_asetnfc

表格行： -否（主键） -ID（不是主键，但仍然是唯一的。随机数） -信息 -计时器

PHP代码：

<?php


    //Mendapatkan Nilai Dari Variable ID Pegawai yang ingin ditampilkan
    $id = $_GET['id'];

    //Importing database
    require_once('koneksi.php');


    $sql = "SELECT * FROM tb_asetnfc WHERE id=$id";

    //Mendapatkan Hasil
    $r = mysqli_query($con,$sql);

    //Memasukkan Hasil Kedalam Array
    $result = array();
    $row = mysqli_fetch_array($r);
    array_push($result,array(
            "no"=>$row['no'],
            "id"=>$row['id'],
            "informasi"=>$row['informasi'],
            "timer"=>$row['timer']
        ));

    //Menampilkan dalam format JSON
    echo json_encode(array('result'=>$result));

    mysqli_close($con);
?>

我的Java代码

package com.asetnfc;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

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

import java.util.HashMap;

public class DetailDatabaseWWW extends Activity implements OnClickListener{

    private EditText editTextno;
    private EditText editTextid;
    private EditText editTextinformasi;
    private EditText editTexttimer;

    private Button buttonUpdate;
    private Button buttonDelete;

    private String id;

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

        Intent intent = getIntent();

        id = intent.getStringExtra(konfigurasi.EMP_ID);

        editTextno = (EditText) findViewById(R.id.editTextno);
        editTextid = (EditText) findViewById(R.id.editTextid);
        editTextinformasi = (EditText) findViewById(R.id.editTextinformasi);
        editTexttimer = (EditText) findViewById(R.id.editTexttimer);

        buttonUpdate = (Button) findViewById(R.id.buttonUpdate);
        buttonDelete = (Button) findViewById(R.id.buttonDelete);

        buttonUpdate.setOnClickListener(this);
        buttonDelete.setOnClickListener(this);

        editTextid.setText(id);

        getEmployee();
    }

    private void getEmployee(){
        class GetEmployee extends AsyncTask<Void,Void,String>{
            ProgressDialog loading;
            @Override
            protected void onPreExecute() {
                super.onPreExecute();
                loading = ProgressDialog.show(DetailDatabaseWWW.this,"Fetching...","Wait...",false,false);
            }

            @Override
            protected void onPostExecute(String s) {
                super.onPostExecute(s);
                loading.dismiss();
                showEmployee(s);
            }

            @Override
            protected String doInBackground(Void... params) {
                RequestHandler rh = new RequestHandler();
                String s = rh.sendGetRequestParam(konfigurasi.URL_GET_EMP,id);
                return s;
            }
        }
        GetEmployee ge = new GetEmployee();
        ge.execute();
    }

    private void showEmployee(String json){
        try {
            JSONObject jsonObject = new JSONObject(json);
            JSONArray result = jsonObject.getJSONArray(konfigurasi.TAG_JSON_ARRAY);
            JSONObject c = result.getJSONObject(0);
            String no = c.getString(konfigurasi.TAG_ID);
            String informasi = c.getString(konfigurasi.TAG_INFORMASI);
            String timer = c.getString(konfigurasi.TAG_TIMER);

            editTextno.setText(no);
            editTextinformasi.setText(informasi);
            editTexttimer.setText(timer);

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


    private void updateEmployee(){
        final String no = editTextno.getText().toString().trim();
        final String informasi = editTextinformasi.getText().toString().trim();
        final String timer = editTexttimer.getText().toString().trim();

        class UpdateEmployee extends AsyncTask<Void,Void,String>{
            ProgressDialog loading;
            @Override
            protected void onPreExecute() {
                super.onPreExecute();
                loading = ProgressDialog.show(DetailDatabaseWWW.this,"Updating...","Wait...",false,false);
            }

            @Override
            protected void onPostExecute(String s) {
                super.onPostExecute(s);
                loading.dismiss();
                Toast.makeText(DetailDatabaseWWW.this,s,Toast.LENGTH_LONG).show();
            }

            @Override
            protected String doInBackground(Void... params) {
                HashMap<String,String> hashMap = new HashMap<>();
                hashMap.put(konfigurasi.KEY_EMP_NO,no);
                hashMap.put(konfigurasi.KEY_EMP_ID,id);
                hashMap.put(konfigurasi.KEY_EMP_INFORMASI,informasi);
                hashMap.put(konfigurasi.KEY_EMP_TIMER,timer);

                RequestHandler rh = new RequestHandler();

                String s = rh.sendPostRequest(konfigurasi.URL_UPDATE_EMP,hashMap);

                return s;
            }
        }

        UpdateEmployee ue = new UpdateEmployee();
        ue.execute();
    }

    private void deleteEmployee(){
        class DeleteEmployee extends AsyncTask<Void,Void,String> {
            ProgressDialog loading;

            @Override
            protected void onPreExecute() {
                super.onPreExecute();
                loading = ProgressDialog.show(DetailDatabaseWWW.this, "Updating...", "Tunggu...", false, false);
            }

            @Override
            protected void onPostExecute(String s) {
                super.onPostExecute(s);
                loading.dismiss();
                Toast.makeText(DetailDatabaseWWW.this, s, Toast.LENGTH_LONG).show();
            }

            @Override
            protected String doInBackground(Void... params) {
                RequestHandler rh = new RequestHandler();
                String s = rh.sendGetRequestParam(konfigurasi.URL_DELETE_EMP, id);
                return s;
            }
        }

        DeleteEmployee de = new DeleteEmployee();
        de.execute();
    }

    private void confirmDeleteEmployee(){
        AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(this);
        alertDialogBuilder.setMessage("Apakah Kamu Yakin Ingin Menghapus Pegawai ini?");

        alertDialogBuilder.setPositiveButton("Ya",
                new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface arg0, int arg1) {
                        deleteEmployee();
                        startActivity(new Intent(DetailDatabaseWWW.this,DatabaseWWW.class));
                    }
                });

        alertDialogBuilder.setNegativeButton("Tidak",
                new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface arg0, int arg1) {

                    }
                });

        AlertDialog alertDialog = alertDialogBuilder.create();
        alertDialog.show();
    }

    public void onClick(View v) {
        if(v == buttonUpdate){
            updateEmployee();
        }

        if(v == buttonDelete){
            confirmDeleteEmployee();
        }
    }
}

我的xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:orientation="vertical"
    android:layout_height="match_parent" android:paddingLeft="16dp"
    android:paddingRight="16dp"
    android:paddingTop="16dp"
    android:paddingBottom="16dp" tools:context=".MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="No" />

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/editTextno" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="ID Tag" />

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/editTextid" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Informasi" />

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/editTextinformasi" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Timer" />

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/editTexttimer" />

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Update"
        android:id="@+id/buttonUpdate" />

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Hapus"
        android:id="@+id/buttonDelete" />

</LinearLayout>

当我运行代码时，它仅显示ID，而不显示其他任何行，如No，Informasi和timer。代码有什么问题？请有人帮我。

使应用程序将数据从MYSQL读取到Android XML