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Metode dan Algoritma | Aplikasi Android Menghapus Data, Delete pada Web PHP MySQL dengan Method GET . Anda bisa melakukan konsultasi tentang Aplikasi Android Menghapus Data, Delete pada Web PHP MySQL dengan Method GET melalui form di samping kanan !!!
Tulisan ini adalah sambungan dari artikel sebelumnya yaitu Mengedit / Update Data ke Web Database PHP MySQL Menggunakan Method POST. Silakan download atau ikuti pembuatan program dari Artikel tersebut untuk kemudian kita tambahkan kemampuan Android Menghapus / Delete Data di Web Database PHP MySQL menggunakan Metode GET.
Pada Program utama di MainActivity kita tambahkan beberapa baris program untuk melakukan Delete Hapus Data :
MainActivity.java
package com.amijaya.androidphpmysqljson;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
// http://cariprogram.blogspot.com
// nuramijaya@gmail.com
public class MainActivity extends Activity {
private JSONObject jObject;
private String jsonResult =”";
private String url = “http://192.168.43.150/json/daftarkota.php”;
private String url2 = “http://192.168.43.150/json/delkota.php”;
String[] daftarid;
String[] daftarnama;
String[] daftarlatitude;
String[] daftarlongitude;
Menu menu;
public static MainActivity ma;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ma=this;
RefreshList();
}
public void RefreshList() {
try {
jsonResult = getRequest(url);
jObject = new JSONObject(jsonResult);
JSONArray menuitemArray = jObject.getJSONArray(“kota”);
daftarid = new String[menuitemArray.length()];
daftarnama = new String[menuitemArray.length()];
daftarlatitude = new String[menuitemArray.length()];
daftarlongitude = new String[menuitemArray.length()];
for (int i = 0; i
{
daftarid[i] = menuitemArray.getJSONObject(i).getString(“id”).toString();
daftarnama[i] = menuitemArray.getJSONObject(i).getString(“nama”).toString();
daftarlatitude[i] = menuitemArray.getJSONObject(i).getString(“latitude”).toString();
daftarlongitude[i] = menuitemArray.getJSONObject(i).getString(“longitude”).toString();
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ListView ListView01 = (ListView)findViewById(R.id.ListView01);
ListView01.setAdapter(new ArrayAdapter(this, android.R.layout.simple_list_item_1, daftarnama));
ListView01.setSelected(true);
ListView01.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView> arg0, View arg1, int arg2,
long arg3) {
final String selectionid = daftarid[arg2];
final String selectionnama = daftarnama[arg2];
final String selectionlatitude = daftarlatitude[arg2];
final String selectionlongitude = daftarlongitude[arg2];
final CharSequence[] dialogitem = {“Edit”, “Delete”};
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle(“Pilih ?”);
builder.setItems(dialogitem, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int item) {
switch(item){
case 0 :
Intent i = new Intent(getApplicationContext(), EditActivity.class);
i.putExtra(“id”, selectionid);
i.putExtra(“nama”, selectionnama);
i.putExtra(“latitude”, selectionlatitude);
i.putExtra(“longitude”, selectionlongitude);
startActivity(i);
break;
case 1 :
getRequest(url2 + “?id=” + selectionid);
RefreshList();
break;
}
}
});
builder.create().show();
}});
((ArrayAdapter)ListView01.getAdapter()).notifyDataSetInvalidated();
}
/**
* Method untuk Mengirimkan data ke server
*/
public String getRequest(String Url){
String sret=”";
HttpClient client = new DefaultHttpClient();
HttpGet request = new HttpGet(Url);
try{
HttpResponse response = client.execute(request);
sret =request(response);
}catch(Exception ex){
Toast.makeText(this,”Gagal “+sret, Toast.LENGTH_SHORT).show();
}
return sret;
}
/**
* Method untuk Menerima data dari server
*/
public static String request(HttpResponse response){
String result = “”;
try{
InputStream in = response.getEntity().getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
StringBuilder str = new StringBuilder();
String line = null;
while((line = reader.readLine()) != null){
str.append(line + “\n”);
}
in.close();
result = str.toString();
}catch(Exception ex){
result = “Error”;
}
return result;
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
this.menu = menu;
menu.add(0, 1, 0, “Tambah”).setIcon(android.R.drawable.btn_plus);
menu.add(0, 2, 0, “Refresh”).setIcon(android.R.drawable.ic_menu_rotate);
menu.add(0, 3, 0, “Exit”).setIcon(android.R.drawable.ic_menu_close_clear_cancel);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case 1:
Intent i = new Intent(MainActivity.this, AddActivity.class);
startActivity(i);
return true;
case 2:
RefreshList();
return true;
case 3:
finish();
return true;
}
return false;
}
}
Selanjutnya tidak ada lagi perubahan baik pada file layout .xml maupun AndroidActivity.xml
Hasilnya
Project selengkapnya silakan didownload disini :
https://docs.google.com/open?id=0B4i1FYc_4RXzN2NOb29kYUcycW8
Semoga bermanfaat, Selamat Coding.
Aplikasi Android Menghapus Data, Delete pada Web PHP MySQL dengan Method GET
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Ditulis Oleh hank2
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