Modul Android 1

8/15/2019 Modul Android 1

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DAFTAR ISI

Halaman Judul .......................................................................................i

Halaman Penulis ...................................................................................ii Kata Pengantar .....................................................................................iii

Daftar Isi ..............................................................................................v

Pertemuan 1 Pengenalan Android ..........................................................1

Pertemuan 2 Membuat Toast, List Dialog, Alert Dialog ..........................9

Pertemuan 3 Membuat Intent ..............................................................14

Pertemuan 4 Membuat Aplikasi Kalkulator ..........................................25

Pertemuan 5 SQL Lite ........................................................................36 Pertemuan 6 Pembuatan Projet ............................................................47

Pertemuan 7 Membuat Aplikasi Dengan Php Mysql (Relasi Tabel)

Part I ............................................................................. 76

Pertemuan 8 Membuat Aplikasi Dengan Php Mysql (Relasi Tabel)

Part II ............................................................................76

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Modul praktikum Pemrograman Mobile

PERTEMUAN 1 Bagian ini akan menjelaskan tentang :

Konsep umum android

Proses instalasi Eclipse

Membuat Program Pertama..........................................................................................................................................................

PENGENALAN ANDROID Android adalah sistem operasi untuk telepon seluler yang berbasis

Linux.Android menyediakan platform yang bersifat open source bagi para pengembang

untuk menciptakan sebuah aplikasi.Awalnya, Google Inc. mengakuisi Android Inc. yang

mengembangkan software untuk ponsel yang berada di Palo Alto, California Amerika

Serikat. Kemudian untuk mengembangkan Android, dibentuklah Open Handset Alliance,

yaitu konsorsium dari 34 perusahaan hardware, software, dan telekomunikasi, termasuk

Google, HTC, Intel, Motorola, Qualcomm, T-Mobile, dan Nvidia. Sebuah Activity biasanya ditampilkan dalam satu screen sebagai bagian

komponen dari View (yang terdiri dari komponen UI, widget atau control), yang bertugas

melakukan interaksi dengan user untuk melakukan sebuah task tunggal (misalnya, melihat

informasi, mengedit data, atau memasukkan data). Sebuah aplikasi Android biasanya memiliki satu atau lebih Activity. Salah satu

Activity ditandai sebagai startup activity, yang pada gilirannya memulai activity

berikutnya, melalui sebuah intent. Untuk membuat suatu activity, kita melakukan extend

terhadap class android.app.Activity, dan melakukan override beberapa method, khususnya

method OnCreate(). Kita bisa mengatur konten view dari activity secara bahasa pemrograman java atau juga

bisa melalui kode layout file XML Daur hidup sebuah activity diatur melalui method call-back, yang di definisikan pada class

dasar Activity pada gambar 1.1. tentang siklus hidup android.

INSTALASI ECLIPSE, JDK, ANDROID DEVELOPMENT TOOLS Sebelum membangun aplikasi android, diperlukan tiga buah file yang harus diinstal.

Ketiga buah file tersebut dapat diunduh di http://developer.android.com/sdk/index.html

1.

Eclipse2. ADT Plugin

3. SDK Manager

Ketiga file tersebut sudah include didalam satu folder. Saat mendownload silahkan

sesuaikan dengan tipe sistem operasi komputer. Kemudian install JDK (Java Development

Kit) minimal versi 7 dan install di komputer. Berikut ini adalah langkah-langkah instalasi :

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http://developer.android.com/sdk/index.htmlhttp://developer.android.com/sdk/index.htmlhttp://developer.android.com/sdk/index.html


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Gambar 1.1 : Siklus Hidup Android

1. Instal JDK, Awal Instalasi pada gambar 1.2. Silahkan Klik Next hingga proses

instalasi selesai.

Gambar 1.2 : instalasi Java Development Kit 2. Selanjutnya kita akan membuat Android Virtual Device pada gambar 1.3. Masuk

ke folder adt-bundle, kemudian klik SDK manager.exe. jika terdapat

pemberitahuan error, abaikan saja.

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Gambar 1.3 : Tampilan SDK Manager 3. Pilih Tools lalu Manage AVDs pada gambar 1.4

Gambar 1.4 : Proses Manajemen AVD

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4. Selanjutnya adalah proses konfigurasi emulator android pada gambar 1.5, klik

New

Gambar 1.5 : membuat Android Virtual Device 5. Isi sesuai dengan gambar 1.6. Untuk Internal Storage ubah nilainya menjadi

500MiB. Kemudian Klik OK

Gambar 1.6 : konfigurasi AVD

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6. Setelah itu, klik start untuk menjalankan emulator yang telah dibuat. Android

Device Virtual gambar 1.7 telah selesai dibuat.

Gambar 1.7 : menjalankan AVD PROGRAM PERTAMA Pada pertemuan pertama. Kita akan membuat program awal sebagai pemanasan. Berikut

ini langkah-langkah pembuatan aplikasi android pertama. 1. Jalankan Eclipse pada gambar 1.7, Kemudian Pilih File > New > Android

Application Project

Gambar 1.7 : membuat project pertama

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2. Kemudian isi seperti gambar 1.2.

Gambar 1.8 : memberi nama project 3.

Buka file main.xml didalam package res > layout. Gambar 1.9

Gambar 1.9 : hierarki package

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4. Ganti kode di main.xml seperti dibawah ini.

Tampilan pada Graphical Layout pada gambar 1.10

Gambar 1.10 : tampilan graphical layout

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5. Kemudian ubah kode di activity main.java seperti dibawahini. package com.example.projectpertama;import android.os.Bundle;

import android.app.Activity;

public class Main extends Activity implements OnClickListener{ TextView txt1;Button btn1;

@Override protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);setContentView(R.layout.main);txt1 = (TextView) findViewById(R.id.txt1); btn1 = (Button) findViewById(R.id.btn1); btn1.setOnClickListener(this);

}@Override public void onClick(View arg0) {

// TODO Auto-generated methodstub txt1.setText("Mantep kan");

} }

6. Jalankan aplikasi dengan cara klik kanan package > pilih Run As > Android

Application Project, atau dengan shortcut CTRL + F11.

7.

Aplikasi dapat didownload langsung ke perangkat android. File

ProjectPertama.apk terletak di folder ProjectPertama/bin.

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PERTEMUAN 2 Bagian ini akan menjelaskan tentang :

Menampilkan gambar

Membuat dialog interaktif dengan toast, list, dan alert

..........................................................................................................................................................MEMBUAT TOAST, LIST DIALOG, ALERT DIALOG Pada pertemuan kedua kita akan membuat kotak dialog sebagai sarana interaktif antara

aplikasi dengan pengguna. Pada aplikasi ini kita akan mengimplementasikan 3 macam

dialog, antara lain : • Toast

• List dialog

• Alert dialog

Untuk membuat aplikasi ini. Silahkan membuat project baru seperti pada gambar dibawah

ini. 1. Membuat project dengan nama alertlist pada gambar 2.1

Gambar 2.1 : membuat project alertlist

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2. Modifikasi layout di activitymain.xml menjadi seperti dibawah ini

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3. Modifikasi file AlertListActivity.java seperti dibawah inipackage com.example.alertlist;

import android.os.Bundle;


public class AlertListActivity extends Activity implements OnClickListener {Button pesantoast;

Button keluar;

Button tampillist;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_alert_list);

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

pesantoast.setOnClickListener(this);

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

tampillist.setOnClickListener(this);

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

keluar.setOnClickListener(this);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.activity_alert_list,

menu); return true; } @Override public void onClick(View arg0)

{ if(arg0 == pesantoast){ Toast.makeText(getBaseContext(), "Anda Memilih Toast",

Toast.LENGTH_SHORT).show(); } else if (arg0 == keluar){

AlertDialog.Builder builder = new AlertDialog.Builder(this);

builder.setMessage("Apakah Anda ingin keluar ?").setCancelable(false) .setPositiveButton("Ya", new DialogInterface.OnClickListener() {

@Override public void onClick(DialogInterface arg0, int arg1)

{ AlertListActivity.this.finish(); // TODO Auto-generated method stub }

} ).setNegativeButton("Tidak", new DialogInterface.OnClickListener() {

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@Override public void onClick(DialogInterface arg0, int arg1)

{ arg0.cancel(); // TODO Auto-generated method stub

} } ).show();

} else if (arg0 == tampillist){

final CharSequence[] item = {"Jeruk", "Jambu", "Nangka",

"Nanas"}; AlertDialog.Builder builder = new

AlertDialog.Builder(this); builder.setTitle("Pilih Minuman"); builder.setItems(item, new DialogInterface.OnClickListener()

{ @Override

public void onClick(DialogInterface arg0, int arg1) {Toast.makeText(getBaseContext(), item[arg1], Toast.LENGTH_SHORT).show(); // TODO Auto-generated method stub

} }).show();

} // TODO Auto-generated method stub } }

4.

Jalankan aplikasi dan lihat hasilnya.

Gambar 2.2 : list dialog

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Gambar 2.3 : alert dialog

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PERTEMUAN 3 Pada bagian ini, kita akan mempelajari :

Intent untuk memanggil activity

Penerapan intent pada aplikasi konversi berat badan

..........................................................................................................................................................MEMBUAT INTENT Pada pertemuan ketiga kita akan belajar membuat intent sederhana. Inti dari sebuahaplikasi ada 3, yaitu activity, service dan broadcast. Intent digunakan untuk memanggil

activity, memanggil service, atau melakukan broadcast. Pada bagian ini, kita akan memahami intent paling sederhana yaitu memanggil activitylain.

1. Buat project dengan nama IntentPertama

Gambar 3.1 : membuat project intentpertama 2. Modifikasi activity_pertama.xml seperti dibawah ini


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android:layout_height="match _parent"

android:orientation="vertical"

tools:context=".ActivityPertama" >

3. Modifikasi ActivityPertama.java seperti dibawah ini

package com.example.intentpertama;



public class ActivityPertama extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState)

{ super.onCreate(savedInstanceState);setContentView(R.layout.activity_pertama);

final Button button1 = (Button) findViewById(R.id.button1);

button1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) {

Intent myintent = new Intent(button1.getContext(),

ActivityKedua.class);

startActivityForResult(myintent, 0); //TODO Auto-generated method stub }

}); }

}

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4. Buat activity kedua seperti gambar 3.2.

Gambar 3.2 : membuat activity kedua 5. Modifikasi activity_kedua.xml seperti dibawah ini

6. Modifikasi ActivityKedua.java seperti dibawah

ini package com.example.intentpertama;



import android.content.Intent;

import android.view.Menu;

import android.view.View;

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import android.widget.Button; public class ActivityKedua extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState){ super.onCreate(savedInstanceState);

setContentView(R.layout.activity_kedua); Button back = (Button)findViewById(R.id.back);

back.setOnClickListener(new View.OnClickListener()

{ @Override public void onClick(View arg0) {

Intent intent = new Intent();

setResult(RESULT_OK,

intent); finish(); // TODO Auto-generated method stub

} });

} }

7. Jalankan aplikasi seperti gambar 3.3

Gambar 3.3 : hasil aplikasi intent sederhana

LATIHAN 1 MEMBUAT KONVERSI BERAT BADAN Aplikasi konversi berat badan ini menggunakan dua buah activity. Activity pertama berisi

inputan nama, username, dan button. Activity kedua berisi textfield dan button. 1. Buat project baru dengan nama BeratBadan

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Gambar 3.4 : membuat project beratbadan 2. Modifikasi activity_main.xml berikut


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android:layout_height="wrap_content"

android:ems="10" >

3.

Modifikasi mainactivity.java seperti dibawahini package com.example.latihan1;



public class MainActivity extends Activity implements

android.view.View.OnClickListener {

EditText username, password;

Button login;

String user = "yuni", pass = "12345";

@Override


{ super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

username = (EditText)findViewById(R.id.username);

password = (EditText)findViewById(R.id.password);

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

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login.setOnClickListener(this); } @Override

public boolean onCreateOptionsMenu(Menu menu) {getMenuInflater().inflate(R.menu.activity_main,

menu); return true; }

@Override public void onClick(View arg0) {

try{ if(arg0.getId() == R.id.login){

Intent i = new Intent(getBaseContext(),

Main2Activity.class); startActivityForResult(i, 0); }

} catch (Exception e){ Toast.makeText(getBaseContext(), "Anda Tidak Berhak Masuk",

Toast.LENGTH_LONG).show(); }

} }

4. Modifikasi activity_main2.xml seperti dibawah ini


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android:ems="10"

android:inputType="number" >

5. Modifikasi Main2Activity.java seperti dibawah

ini package com.example.latihan1;


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import android.app.Activity; public class Main2Activity extends Activity implements OnClickListener {

Button hasil, back, exit;

EditText berat, tinggi;TextView output;



setContentView(R.layout.activity_main2); berat

= (EditText)findViewById(R.id.berat); tinggi =

(EditText)findViewById(R.id.tinggi); output =

(TextView)findViewById(R.id.output); hasil =

(Button)findViewById(R.id.hasil); back = (Button)findViewById(R.id.back);

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

hasil.setOnClickListener(this);

back.setOnClickListener(this);

exit.setOnClickListener(this); } @Override public boolean onCreateOptionsMenu(Menu menu) {

getMenuInflater().inflate(R.menu.activity_main2,

menu); return true; } @Override public void onClick(View v) {

int angka = 110; //angka ideal int angka1 = Integer.parseInt(berat.getText().toString());

//merubah dari string edittext ke integer

int angka2 = Integer.parseInt(tinggi.getText().toString());int ideal = angka2 - angka1; //berat badan ideal int ideal2 = angka2 - angka; //berat badan yang disarankan

try{ if(v.getId() == R.id.hasil){ //button

hasil if(ideal == 110){ output.setText("Berat Badan Anda

Ideal"); }else if (ideal > 110){ output.setText("Anda Kurus");

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}else{ output.setText("Anda Gemuk, berat Anda "+angka1+" Tinggi

Anda "+angka2+" Seharusnya Berat badan anda "+ideal2); } }else if (v.getId() == R.id.exit){


builder.setMessage("Apakah Anda Ingin Keluar ?") .setCancelable(false).setPositiveButton("OK",

new DialogInterface.OnClickListener() { @Override

public void onClick(DialogInterface arg0, int arg1) {

Main2Activity.this.finish();

} }) .setNegativeButton("NO", new DialogInterface.OnClickListener() {

@Override public void onClick(DialogInterface dialog, int which)

{ dialog.cancel(); }

}).setNeutralButton("Cancel", new DialogInterface.OnClickListener() {

@Override public void onClick(DialogInterface dialog, int which) {

dialog.dismiss(); }

}).show(); }else if (v.getId() == R.id.back){ Intent i = new Intent(getBaseContext(), MainActivity.class);

startActivityForResult(i, 0); }else{

Toast.makeText(getBaseContext(), "Masukkan Berat danTinggi Badan Anda", Toast.LENGTH_SHORT).show();

output.setText("Masukkan Angka Dulu"); }

}catch(Exception e){ Toast.makeText(getBaseContext(), "Hahaha", Toast.LENGTH_SHORT).show();

} } }

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6. Jalankan aplikasi seperti gambar 3.6

Gambar 3.6 : hasil aplikasi konversi berat badan

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PERTEMUAN 4 Pada bagian ini, kita akan mempelajari :

Membuat aplikasi kalkulator sederhana

Pengenalan Autocomplete

..........................................................................................................................................................MEMBUAT APLIKASI KALKULATOR

1. Buat project dengan nama kalkulator

Gambar 4.1 : membuat aplikasi kalkulator 2. Modifikasi main.xml seperti pada gambar 4.2.

Gambar 4.2 : tampilan main.xml pada activity 1

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3. Modifikasi mainactivity.java seperti dibawah

ini package com.example.hitung_sederhana;




public class MainActivity extends Activity implements OnClickListener {

EditText a, b, c;

Button tambah, kurang, kali, bagi, next;

@Override

protected void onCreate(Bundle savedInstanceState) {



a = (EditText) findViewById(R.id.a); b= (EditText) findViewById(R.id.b); c =

(EditText) findViewById(R.id.c);

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

kurang = (Button) findViewById(R.id.kurang); kali

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

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

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

tambah.setOnClickListener(this); kurang.setOnClickListener(this); kali.setOnClickListener(this); bagi.setOnClickListener(this); next.setOnClickListener(this);

} @Override public void onClick(View v) {

int angka1 = Integer.parseInt(a.getText().toString());int angka2 = Integer.parseInt(b.getText().toString());

int hasil = angka1 + angka2; int hasil2 = angka1 - angka2;

int hasil3 = angka1 * angka2;

float hasil4 = angka1 / angka2;

try { if (v.getId() == R.id.tambah) {

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c.setText(Integer.toString(hasil)); } else if (v.getId() == R.id.kurang) {

c.setText(Integer.toString(hasil2));

} else if (v.getId() == R.id.kali) {

c.setText(Integer.toString(hasil3));

} else if (v.getId() == R.id.bagi){

c.setText(Float.toString(hasil4));

} else {

Intent i = new Intent(getBaseContext(), MainActivity2.class);

startActivityForResult(i, 0); }

} catch (Exception e) {

Toast.makeText(getBaseContext(), "Salah", Toast.LENGTH_LONG).show();

c.setText("Tak Terhingga ~"); } // ketiga.settext(string.valueof(hasil)).tostring());

} }

4. Modifikasi main2.xml


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android:layout_marginTop="40dp"

android:text="Back" />

5.

Modifikasi mainactivity2.xml seperti dibawah

ini package com.example.hitung_sederhana;




public class MainActivity2 extends Activity implements OnClickListener {

Button back;

@Override

protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main_activity2);

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


}

@Override


getMenuInflater().inflate(R.menu.activity_main_activity2,

menu); return true;}

@Override

public void onClick(View v) {

if (v.getId() == R.id.back){

Intent i = new Intent(getBaseContext(), MainActivity.class);

startActivityForResult(i, 0);

}else{

Toast.makeText(getBaseContext(), "Salah",Toast.LENGTH_LONG).show();

back.setText("Salah Le... ~");

}

}

}

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MEMBUAT APLIKASI DENGAN AUTOCOMPLETE 1. Buat project dengan nama latihan2

Gambar 4.3 : membuat project latihan2 2. Modifikasi main.xml seperti dibawah ini

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android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Wanita" />

3.

Modifikasi activity.java seperti dibawahini package com.example.latihan2;

import android.R.string;



public class MainActivity extends Activity implements OnClickListener,

TextWatcher, RadioGroup.OnCheckedChangeListener{

EditText nama, nim;

TextView seleksi;

AutoCompleteTextView provinsi;

RadioGroup jk;

CheckBox ya;

String item[] = {"Jawa Tengah", "Jawa Timur", "Jawa Barat", "Sumatera

Selatan", "Sumatera Utara"};

ImageButton create;

String user="yuni", pass="12345";

@Override

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setContentView(R.layout.activity_main); seleksi = (TextView)findViewById(R.id.seleksi);

provinsi = (AutoCompleteTextView)findViewById(R.id.provinsi);provinsi.addTextChangedListener(this); provinsi.setAdapter(new ArrayAdapter(this,

android.R.layout.simple_dropdown_item_1line, item)); nama = (EditText)findViewById(R.id.nama);

nim = (EditText)findViewById(R.id.nim); create = (ImageButton)findViewById(R.id.create);

create.setOnClickListener(this);

ya = (CheckBox)findViewById(R.id.ya); jk= (RadioGroup)findViewById(R.id.jk);

jk.setOnCheckedChangeListener(this); } @Override public void onClick(View arg0)

{ try{ if(arg0.getId() == R.id.create){

Intent i = new Intent(getBaseContext(),

MainActivity2.class); startActivityForResult(i, 0); }

} catch (Exception e){

Toast.makeText(getBaseContext(), "Anda Tidak Berhak

Masuk", Toast.LENGTH_LONG).show(); } }

@Override public void afterTextChanged(Editable s) { } @Override public void beforeTextChanged(CharSequence s, int start, int count,int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count)

{ seleksi.setText(provinsi.getText());

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} @Override public void onCheckedChanged(RadioGroup group, int checkedId) { } }

4. Modifikasi main2.xml seperti gambar dibawah ini

Gambar 4.4 : tampilan activity kedua 5. Modifikasi activity2.java seperti gambar dibawah ini

package com.example.latihan2;



public class MainActivity2 extends Activity implements OnClickListener

{ Button exit, back;

@Override



setContentView(R.layout.activity_main2);

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

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


exit.setOnClickListener(this);

}

@Override

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getMenuInflater().inflate(R.menu.activity_main2,

menu); return true; } @Override

public void onClick(View v)

{ try{ if(v.getId() == R.id.exit){


builder.setMessage("Apakah Anda Ingin Keluar ?") .setCancelable(false) .setPositiveButton("OK", new DialogInterface.OnClickListener()

{ @Override public void onClick(DialogInterface arg0, int arg1) {

MainActivity2.this.finish(); }

}) .setNegativeButton("NO", new DialogInterface.OnClickListener() {


{ dialog.cancel(); }

}).setNeutralButton("Cancel", new DialogInterface.OnClickListener() {


{ dialog.dismiss(); } }).show(); }else if (v.getId() == R.id.back){

Intent i = new Intent(getBaseContext(),MainActivity.class); startActivityForResult(i, 0);

} }catch(Exception e){

Toast.makeText(getBaseContext(), "Hahaha", Toast.LENGTH_SHORT).show();

} }

}

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6. Jalankan aplikasi

Gambar 4.5 : hasil tampilan aplikasi

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PERTEMUAN 5

Pada bagian ini, kita akan mempelajari : Membuat aplikasi database sederhana dengan SQLite

................................................................................................................................................ .......... PENGENALAN SQLite SQLite adalah database yang dibangun di Android. Hampir sama dengan SQL pada

dekstop, SQLite memiliki fiture relasional database namun membutuhkan sedikit memori.

SQLite terdapat pada semua perangkat Android. Anda culup mendefinisikan perintah SQL

untuk meng-create atau meng-update database, selanjutnya sistem ada Android akan

menangani hal-hal yang berhubungan dengn database. SQLite database otomatis akan

tersimpan didalam path data/data/nama_package/database/nama_database.

PEMBUATAN APLIKASI 1. Buat project baru dengan nama AndroidCrudExample. Lalu setelah itu modifikasi

layout activity_main.xml sesuai dengan gambar 5.1;

Gambar 5.1 layout activity_main.xml

2. Kemudian buat activity baru dengan nama

student_input_form.xml. Setelah selesai

membuat activity baru jangan lupa untuk

menginisialisasikannya pada file

AndroidManifest.xml agar activity dapat

kenal/dijalankan. Pada Gambar 5.2

student_input_form.

Gambar 5.2. Studen_input_form

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3. Setelah itu buat file DatabaseHandler.java

import android.content.Context; import android.database.sqlite.SQLiteDatabase;

import android.database.sqlite.SQLiteOpenHelper; public class DatabaseHandler extends SQLiteOpenHelper {

private static final int DATABASE_VERSION = 1; protected static final String DATABASE_NAME = "StudentDatabase";

public DatabaseHandler(Context context) { super(context, DATABASE_NAME, null, DATABASE_VERSION);

} @Override

public void onCreate(SQLiteDatabase db) {

String sql = "CREATE TABLE students " + "( id INTEGER PRIMARY KEY AUTOINCREMENT, "

+ "firstname TEXT, " + "email TEXT ) ";

db.execSQL(sql); }

@Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion)

{ String sql = "DROP TABLE IF EXISTS students"; db.execSQL(sql); onCreate(db);

} }

4.

Kemudian itu buat lagi file ObjectStudent.java

public class ObjectStudent {

int id; String firstname;

String email; public ObjectStudent(){ }

}

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5. Setelah itu modifikasi file MainActivity.java (bagi yang tidak memiliki atau

belum membuat file MainActivity.java buat terlebih dahulu)

import java.util.List;



import android.view.Menu;

import android.widget.Button; import android.widget.LinearLayout;

import android.widget.TextView; public class MainActivity extends Activity {




Button buttonCreateLocation = (Button) findViewById(R.id.buttonCreateStudent);

buttonCreateLocation.setOnClickListener(new

OnClickListenerCreateStudent()); countRecords(); readRecords();

} public void countRecords() {

int recordCount = new TableControllerStudent(this).count();

TextView textViewRecordCount = (TextView) findViewById(R.id.textViewRecordCount);

textViewRecordCount.setText(recordCount + " records found."); } public void readRecords() {

LinearLayout linearLayoutRecords = (LinearLayout)

findViewById(R.id.linearLayoutRecords); linearLayoutRecords.removeAllViews();

List students = new TableControllerStudent(this).read();

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if (students.size() > 0) { for (ObjectStudent obj : students)

{ int id = obj.id;

String studentFirstname = obj.firstname;String studentEmail = obj.email; String textViewContents = studentFirstname + " - " +

studentEmail; TextView textViewLocationItem = new

TextView(this); textViewLocationItem.setPadding(0, 10, 0, 10);

textViewLocationItem.setText(textViewContents);

textViewLocationItem.setTag(Integer.toString(id));

textViewLocationItem.setOnLongClickListener(new OnLongClickListenerStudentRecord());

linearLayoutRecords.addView(textViewLocationItem); }

} else {

TextView locationItem = new TextView(this);

locationItem.setPadding(8, 8, 8, 8);

locationItem.setText("No records yet.");

linearLayoutRecords.addView(locationItem); }

} @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.main, menu); return true;

} }

6. Lalu kemudian buat file TableControllerStudent.java

import java.util.ArrayList;


import android.content.ContentValues;

import android.content.Context;

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import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; public class TableControllerStudent extends DatabaseHandler {

public TableControllerStudent(Context context) { super(context);

}

public boolean create(ObjectStudent objectStudent) {

ContentValues values = new ContentValues();

values.put("firstname", objectStudent.firstname);

values.put("email", objectStudent.email);

SQLiteDatabase db = this.getWritableDatabase();

boolean createSuccessful = db.insert("students", null, values) > 0;db.close(); return createSuccessful;

} public List read() {

List recordsList = new ArrayList();

String sql = "SELECT * FROM students ORDER BY id DESC";

SQLiteDatabase db = this.getWritableDatabase(); Cursor cursor = db.rawQuery(sql, null);

if (cursor.moveToFirst()) { do {

int id = Integer.parseInt(cursor.getString(cursor.getColumnIndex("id")));

String studentFirstname =cursor.getString(cursor.getColumnIndex("firstname"));

String studentEmail = cursor.getString(cursor.getColumnIndex("email"));

ObjectStudent objectStudent = new ObjectStudent(); objectStudent.id = id; objectStudent.firstname

= studentFirstname; objectStudent.email =

studentEmail; recordsList.add(objectStudent);

} while (cursor.moveToNext()); }

cursor.close(); db.close(); return recordsList;

}

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public ObjectStudent readSingleRecord(int studentId)

{ ObjectStudent objectStudent = null; String sql = "SELECT * FROM students WHERE id = " +

studentId; SQLiteDatabase db = this.getWritableDatabase(); Cursor cursor = db.rawQuery(sql,

null); if (cursor.moveToFirst()) { int id = Integer.parseInt(cursor.getString(cursor.getColumnIndex("id")));

String firstname = cursor.getString(cursor.getColumnIndex("firstname"));

String email = cursor.getString(cursor.getColumnIndex("email")); objectStudent = new ObjectStudent();

objectStudent.id = id;

objectStudent.firstname = firstname;

objectStudent.email = email; } cursor.close(); db.close(); return objectStudent; }

public boolean update(ObjectStudent objectStudent) {

ContentValues values = new ContentValues();

values.put("firstname", objectStudent.firstname);

values.put("email", objectStudent.email); String where = "id = ?"; String[] whereArgs = { Integer.toString(objectStudent.id) };

SQLiteDatabase db = this.getWritableDatabase(); boolean updateSuccessful = db.update("students", values, where, whereArgs) > 0;

db.close(); return updateSuccessful;

} public boolean delete(String id) {

SQLiteDatabase db = this.getWritableDatabase(); boolean deleteSuccessful = db.delete("students", "id = " + id, null) > 0;

db.close(); return deleteSuccessful;

} public int count() {

SQLiteDatabase db = this.getWritableDatabase();

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String sql = "SELECT * FROM students"; int recordCount = db.rawQuery(sql, null).getCount();

db.close(); return recordCount;

} }

7. Buat file java dengan nama OnClickListenerCreateStudent.java

import android.app.AlertDialog;

import android.content.Context; import android.content.DialogInterface;

import android.view.LayoutInflater;

import android.view.View; import android.view.View.OnClickListener;

import android.widget.EditText; import android.widget.Toast;

public class OnClickListenerCreateStudent implements OnClickListener {

@Override public void onClick(View view) {

final Context context = view.getContext();

LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

View formElementsView = inflater.inflate(R.layout.student_input_form, null, false);

final EditText editTextStudentFirstname = (EditText)

formElementsView.findViewById(R.id.editTextStudentFirstname); final EditText editTextStudentEmail = (EditText)

formElementsView.findViewById(R.id.editTextStudentEmail); new AlertDialog.Builder(context) .setView(formElementsView) .setTitle("Create Student") .setPositiveButton("Add", new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog, int id) {

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String studentFirstname =

editTextStudentFirstname.getText().toString(); String studentEmail =

editTextStudentEmail.getText().toString(); ObjectStudent objectStudent

= new ObjectStudent(); objectStudent.firstname = studentFirstname; objectStudent.email = studentEmail;

boolean createSuccessful = new TableControllerStudent(context).create(objectStudent);

if(createSuccessful){ Toast.makeText(context, "Student information was saved.",

Toast.LENGTH_SHORT).show(); }else{

Toast.makeText(context, "Unable to save studentinformation.", Toast.LENGTH_SHORT).show();

}

((MainActivity) context).countRecords();

((MainActivity) context).readRecords();

dialog.cancel(); } }).show(); } }

8. Buat file java lainnya denga nama OnLongClickListenerStudentRecord.java

import android.app.AlertDialog;

import android.content.Context; import android.content.DialogInterface;

import android.view.LayoutInflater;

import android.view.View; import android.view.View.OnLongClickListener;

import android.widget.EditText; import android.widget.Toast;

public class OnLongClickListenerStudentRecord implements OnLongClickListener {

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Context context; String id;

@Override public boolean onLongClick(View view) {

context = view.getContext(); id = view.getTag().toString(); final CharSequence[] items = { "Edit", "Delete" }; new AlertDialog.Builder(context).setTitle("Student Record") .setItems(items, new DialogInterface.OnClickListener() {

public void onClick(DialogInterface dialog, int item) { if (item == 0) {

editRecord(Integer.parseInt(id)); } else if (item == 1) {

boolean deleteSuccessful = new

TableControllerStudent(context).delete(id); if (deleteSuccessful){

Toast.makeText(context, "Student record was deleted.",


Toast.makeText(context, "Unable to delete student record.",

Toast.LENGTH_SHORT).show(); }

((MainActivity) context).countRecords();

((MainActivity) context).readRecords(); } dialog.dismiss(); }

}).show();return false; } public void editRecord(final int studentId) {

final TableControllerStudent tableControllerStudent =

new TableControllerStudent(context); ObjectStudent objectStudent =

tableControllerStudent.readSingleRecord(studentId);

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LayoutInflater inflater = (LayoutInflater)

context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); final View formElementsView = inflater.inflate(R.layout.student_input_form,

null, false); final EditText editTextStudentFirstname = (EditText)

formElementsView.findViewById(R.id.editTextStudentFirstname); final EditText editTextStudentEmail = (EditText)

formElementsView.findViewById(R.id.editTextStudentEmail);

editTextStudentFirstname.setText(objectStudent.firstname); editTextStudentEmail.setText(objectStudent.email);

new AlertDialog.Builder(context)

.setView(formElementsView)

.setTitle("Edit Record")

.setPositiveButton("Save Changes",

new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) {

ObjectStudent objectStudent = new ObjectStudent(); objectStudent.id = studentId;

objectStudent.firstname = editTextStudentFirstname.getText().toString(); objectStudent.email = editTextStudentEmail.getText().toString(); boolean updateSuccessful = tableControllerStudent.update(objectStudent);

if(updateSuccessful){ Toast.makeText(context, "Student record was updated.",


Toast.makeText(context, "Unable to update student record.",

Toast.LENGTH_SHORT).show(); }

((MainActivity) context).countRecords();((MainActivity) context).readRecords();

dialog.cancel(); } }).show(); } }

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9. Setelah semua selesai dibuat, coba jalankan. apakah sesuai dengan gambar

dibawah ?

Gambar 3. Tampilan awal aplikasi dan Gambar 4. Tampilan input data

Gambar 5. Data berhasil diinsert Gambar 6. Pilihan Edit atau Delete data

Gambar 7. Saat berhasiil mengupdate/edit data Gambar 8 . Saat berhasil mendelete data

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return $con; } function close() {

// closing db connectionmysql_close();

}

}

?>

3. Kemudian buat file db_config.php

4. Kemudian buat file create_product.php


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echo json_encode($response);

} else { $response["success"] = 0;

$response["message"] = "No product found";

echo json_encode($response); }

} else {

$response["success"] = 0; $response["message"] = "Required field(s) is missing";

echo json_encode($response); } ?>

7. Selanjutnya buat file get_all_products.php


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echo

json_encode($response); } else { $response["success"] = 0;

$response["message"] = "No product

found"; echo json_encode($response); }

} else { $response["success"]

= 0; $response["message"] = "No product

found"; echo json_encode($response); }

} else {

$response["success"] = 0; $response["message"] = "Required field(s) is missing";

echo json_encode($response); } ?>

9. setelah selesai coba akses http://localhost/android_connect/db_connect.php

untuk melihat apakah koneksi berjalan dengan baik. jika koneksi berjalan dengan

baik kembali keproject android lalu buat main layout dengan namamain_screen.xml dengan tampilan seperti pada gambar berikut;

Gambar 6.2 Layout main_screen.xml

53

http://localhost/android_connect/db_connect.phphttp://localhost/android_connect/db_connect.phphttp://localhost/android_connect/db_connect.phphttp://localhost/android_connect/db_connect.php


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10. kemudian buat juga layout untuk tampilan add_product, all_products, edit-

product, dan list_item

Gambar 6.3 Layout add_product.xml Gambar 6.4 Layout all_products.xml

Gambar 6.5 Layout edit_product.xml Gambar 6.6 Layout item_list.xml

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11. Setelah layout selesai dibuat, kemudian lanjut buat file JSONParser.java

import java.io.BufferedReader;

import java.io.IOException; import

java.io.InputStream; import

java.io.InputStreamReader; import java.io.UnsupportedEncodingException;


import org.apache.http.HttpEntity;

import org.apache.http.HttpResponse;

import org.apache.http.NameValuePair;

import org.apache.http.client.ClientProtocolException;import org.apache.http.client.entity.UrlEncodedFormEntity;

import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost;

import org.apache.http.client.utils.URLEncodedUtils;

import org.apache.http.impl.client.DefaultHttpClient;

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

import android.util.Log;

public class JSONParser {

static InputStream is = null;

static JSONObject jObj =

null; static String json = "";

// constructor public

JSONParser() {

}

// function get json from url

// by making HTTP POST or GET mehtod

public JSONObject makeHttpRequest(String url, String method,

List params) {

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// Making HTTP request

try {

// check for request method

if(method == "POST"){ // request method is POST

// defaultHttpClient

DefaultHttpClient httpClient = new

DefaultHttpClient(); HttpPost httpPost = new HttpPost(url); httpPost.setEntity(new

UrlEncodedFormEntity(params));

HttpResponse httpResponse = httpClient.execute(httpPost);

HttpEntity httpEntity = httpResponse.getEntity();

is = httpEntity.getContent();

}else if(method == "GET"){ // request method is GET

DefaultHttpClient httpClient = new DefaultHttpClient();

String paramString

= URLEncodedUtils.format(params, "utf-8"); url += "?" + paramString; HttpGet httpGet = new HttpGet(url);

HttpResponse httpResponse =

httpClient.execute(httpGet); HttpEntity httpEntity = httpResponse.getEntity(); is

= httpEntity.getContent(); }

} catch (UnsupportedEncodingException e) {

e.printStackTrace();

} catch (ClientProtocolException e) {

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import org.apache.http.NameValuePair; import org.apache.http.message.BasicNameValuePair;

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

import com.example.androidhive.R;

import android.app.Activity; import

android.app.ProgressDialog; import

android.content.Intent; import

android.os.AsyncTask; import

android.os.Bundle; import android.util.Log;

import android.view.View;

import android.widget.Button; import android.widget.EditText;

public class NewProductActivity extends Activity {

// Progress Dialog private ProgressDialog pDialog;

JSONParser jsonParser = new JSONParser(); EditText inputName; EditText inputPrice; EditText inputDesc;

// url to create new product

private static String url_create_product ="http://10.0.2.2/android_connect/create_product.php";

// JSON Node names private static final String TAG_SUCCESS = "success";

@Override public void onCreate(Bundle savedInstanceState) {


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setContentView(R.layout.add_product);

// Edit Text

inputName = (EditText) findViewById(R.id.inputName);inputPrice = (EditText) findViewById(R.id.inputPrice);

inputDesc = (EditText) findViewById(R.id.inputDesc);

// Create button Button btnCreateProduct = (Button)

findViewById(R.id.btnCreateProduct);

// button click event

btnCreateProduct.setOnClickListener(new View.OnClickListener() {

@Override public void onClick(View view) {

// creating new product in background thread

new CreateNewProduct().execute(); }

}); }

/** * Background Async Task to Create new product

* */

class CreateNewProduct extends AsyncTask {

/** * Before starting background thread Show Progress Dialog

*

*/@Override protected void onPreExecute() {

super.onPreExecute(); pDialog = new ProgressDialog(NewProductActivity.this);

pDialog.setMessage("Creating Product..");

pDialog.setIndeterminate(false);

pDialog.setCancelable(true); pDialog.show();

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}

/** * Creating product

* */

protected String doInBackground(String... args) { String

name = inputName.getText().toString(); String

price = inputPrice.getText().toString(); String description = inputDesc.getText().toString();

// Building Parameters

List params = new

ArrayList(); params.add(new BasicNameValuePair("name", name));

params.add(new BasicNameValuePair("price", price));

params.add(new BasicNameValuePair("description", description));

// getting JSON Object

// Note that create product url accepts POST method

JSONObject json =

jsonParser.makeHttpRequest(url_create_product, "POST", params);

// check log cat fro response Log.d("Create

Response", json.toString());

// check for success tag

try {

int success = json.getInt(TAG_SUCCESS);

if (success == 1) { // successfully created

product Intent i = new Intent(getApplicationContext(), AllProductsActivity.class);

startActivity(i);

// closing this screen

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finish(); } else {

// failed to create product } } catch (JSONException e) {

e.printStackTrace(); }

return null; }

/**

*

After completing background task Dismiss the progress dialog* **/

protected void onPostExecute(String file_url)

{ // dismiss the dialog once done

pDialog.dismiss(); }

} }

13. Kemudian buat file java EditProductActivity.java

import java.util.ArrayList;


import org.apache.http.NameValuePair; import org.apache.http.message.BasicNameValuePair;

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


import android.app.Activity; import

android.app.ProgressDialog; import

android.content.Intent;

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private static final String TAG_PRODUCT = "product";

private static final String TAG_PID = "pid"; private static final String TAG_NAME = "name";

private static final String TAG_PRICE = "price"; private static final String TAG_DESCRIPTION = "description";



setContentView(R.layout.edit_product);

// save button

btnSave = (Button) findViewById(R.id.btnSave);btnDelete = (Button) findViewById(R.id.btnDelete);

// getting product details from intent

Intent i = getIntent();

// getting product id (pid) from intent

pid = i.getStringExtra(TAG_PID);

//

Getting complete product details in background thread

new GetProductDetails().execute();

// save button click event btnSave.setOnClickListener(new

View.OnClickListener() {

@Override public void onClick(View arg0) {

// starting background task to update productnew SaveProductDetails().execute();

} });

// Delete button click event

btnDelete.setOnClickListener(new View.OnClickListener() {

@Override

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public void onClick(View arg0) { // deleting product in background thread

new DeleteProduct().execute(); } });

}

/** * Background Async Task to Get complete product details

* */

class GetProductDetails extends AsyncTask {


* */

@Override protected void onPreExecute() {

super.onPreExecute(); pDialog = new ProgressDialog(EditProductActivity.this);

pDialog.setMessage("Loading product details. Please wait...");

pDialog.setIndeterminate(false); pDialog.setCancelable(true);

pDialog.show(); }

/** * Getting product details in background thread

* */

protected String doInBackground(String... params) {

// updating UI from Background Thread

runOnUiThread(new Runnable() { public void run() {

// Check for success

tag int success; try {

// Building Parameters

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List params = new ArrayList();

params.add(new BasicNameValuePair("pid", pid)); // getting product details by making HTTP request

// Note that product details url will use GET request

JSONObject json = jsonParser.makeHttpRequest(url_product_detials, "GET", params);

// check your log for json response

Log.d("Single Product Details", json.toString());

// json success tag

success = json.getInt(TAG_SUCCESS);

if (success == 1) { // successfully received product details

JSONArray productObj = json .getJSONArray(TAG_PRODUCT); // JSON Array // get first product object from JSON Array

JSONObject product = productObj.getJSONObject(0);

// product with this pid found

// Edit Text

txtName = (EditText) findViewById(R.id.inputName);

txtPrice = (EditText) findViewById(R.id.inputPrice);

txtDesc = (EditText) findViewById(R.id.inputDesc); //

display product data in EditText txtName.setText(product.getString(TAG_NAME));

txtPrice.setText(product.getString(TAG_PRICE));

txtDesc.setText(product.getString(TAG_DESCRIPTION));

}else{ // product with pid not found }

} catch (JSONException e) {

e.printStackTrace(); } } }); return null; }

/** * After completing background task Dismiss the progress dialog

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* **/ protected void onPostExecute(String file_url) {

// dismiss the dialog once got all details


} /** * Background Async Task to Save product Details

* */

class SaveProductDetails extends AsyncTask {


*

*/@Override

protected void onPreExecute() {

super.onPreExecute();

pDialog = new ProgressDialog(EditProductActivity.this);

pDialog.setMessage("Saving product ...");


pDialog.setCancelable(true);

pDialog.show();

}

/**

* Saving product

* */

protected String doInBackground(String... args) {

// getting updated data from EditTexts String name = txtName.getText().toString(); String

price = txtPrice.getText().toString(); String

description = txtDesc.getText().toString(); //Building Parameters List params = new ArrayList();

params.add(new BasicNameValuePair(TAG_PID, pid));

params.add(new BasicNameValuePair(TAG_NAME, name));

params.add(new BasicNameValuePair(TAG_PRICE, price)); params.add(new BasicNameValuePair(TAG_DESCRIPTION, description)); // sending modified data through http request

// Notice that update product url accepts POST method

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JSONObject json = jsonParser.makeHttpRequest(url_update_product,

"POST", params); // check json success

tag try { int success = json.getInt(TAG_SUCCESS); if(success == 1) { // successfully updated Intent i

= getIntent();

// send result code 100 to notify about product update

setResult(100, i);

finish();

} else {

//

failed to update product} } catch (JSONException e) {

e.printStackTrace(); }

return null; }

/** *

After completing background task Dismiss the progress dialog

* **/

protected void onPostExecute(String file_url) { // dismiss the dialog once product uupdated


}

/***************************************************************** * Background Async Task to Delete Product

* */

class DeleteProduct extends AsyncTask {


* */


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super.onPreExecute(); pDialog = new ProgressDialog(EditProductActivity.this);

pDialog.setMessage("Deleting Product...");


pDialog.setCancelable(true); pDialog.show();

} /** * Deleting product

* */


// Check for success tag

int success;try {

// Building Parameters List params = new ArrayList();

params.add(new BasicNameValuePair("pid", pid)); //

getting product details by making HTTP request JSONObject

json = jsonParser.makeHttpRequest( url_delete_product, "POST",

params);

// check your log for json response

Log.d("Delete Product",

json.toString()); // json success tag success = json.getInt(TAG_SUCCESS);

if (success == 1) { // product successfully deleted

// notify previous activity by sending code 100

Intent i = getIntent();

// send result code 100 to notify about product deletion

setResult(100, i);finish();

} } catch (JSONException e) {

e.printStackTrace(); } return null; }

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/** * After completing background task Dismiss the progress dialog

* **/

protected void onPostExecute(String file_url) { // dismiss the dialog once product deleted

pDialog.dismiss(); } } }

14. Selanjutnya buat AllProductActivity.java

import java.util.ArrayList;import java.util.HashMap;


import org.apache.http.NameValuePair;

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

import org.json.JSONObject;


import android.app.ListActivity;

import android.app.ProgressDialog;


import android.os.AsyncTask;

import android.os.Bundle; import android.util.Log;

import android.view.View; import android.view.View.OnClickListener;

import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener;

import android.widget.Button; import android.widget.ListAdapter;

import android.widget.ListView;

import android.widget.SimpleAdapter;

import android.widget.TextView;

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public class AllProductsActivity extends ListActivity {

// Progress Dialog private ProgressDialog pDialog;

// Creating JSON Parser object

JSONParser jParser = new JSONParser();

ArrayList productsList;

// url to get all products list

private static String url_all_products ="http://10.0.2.2/android_connect/get_all_products.php";

// JSON Node names private static final String TAG_SUCCESS = "success";

private static final String TAG_PRODUCTS = "products";

private static final String TAG_PID = "pid"; private static final String TAG_NAME = "name";

// products JSONArray

JSONArray products = null;

Button btnBack;



setContentView(R.layout.all_products);

// Hashmap for ListView productsList = new ArrayList();

// Loading products in Background

Thread new LoadAllProducts().execute();

// Get listview

ListView lv = getListView();

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// on seleting single product

// launching Edit Product Screen

lv.setOnItemClickListener(new OnItemClickListener() {

@Override public void onItemClick(AdapterView parent, View

view, int position, long id) { // getting values from selected ListItem String pid = ((TextView) view.findViewById(R.id.pid)).getText()

.toString();

// Starting new intent Intent in = new Intent(getApplicationContext(),

EditProductActivity.class); // sending pid to next activity

in.putExtra(TAG_PID, pid);

// starting new activity and expecting some response back

startActivityForResult(in, 100);

}

}); btnBack = (Button) findViewById(R.id.backButton);

// view products click event btnBack.setOnClickListener(new View.OnClickListener()

{ @Override public void onClick(View view) {

// Launching All products Activity Intent i = new Intent(getApplicationContext(),

MainScreenActivity.class); startActivity(i);

} }); }

// Response from Edit Product Activity

@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) {

super.onActivityResult(requestCode, resultCode, data); // if result code 100

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if (resultCode == 100) { // if result code 100 is received

// means user edited/deleted product

// reload this screen again

Intent intent = getIntent();

finish();

startActivity(intent); }

} /** * Background Async Task to Load all product by making HTTP Request

* */

class LoadAllProducts extends AsyncTask {/** * Before starting background thread Show Progress Dialog

* */


super.onPreExecute(); pDialog = new ProgressDialog(AllProductsActivity.this);

pDialog.setMessage("Loading products. Please wait...");


pDialog.setCancelable(false); pDialog.show();

} /** * getting All products from url

* */


// Building Parameters List params = new ArrayList();

// getting JSON string from URL JSONObject json = jParser.makeHttpRequest(url_all_products, "GET", params); // Check your log cat for JSON reponse

Log.d("All Products: ", json.toString());

try {

// Checking for SUCCESS TAG

int success = json.getInt(TAG_SUCCESS);

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// dismiss the dialog after getting all products

pDialog.dismiss();

// updating UI from Background Thread

runOnUiThread(new Runnable() {

public void run() {

/**

* Updating parsed JSON data into

ListView * */

ListAdapter adapter = new SimpleAdapter( AllProductsActivity.this, productsList,

R.layout.list_item, new String[] { TAG_PID,TAG_NAME},

new int[] { R.id.pid, R.id.name });

// updating listview

setListAdapter(adapter); }

}); } } }

15. Terakhir buat file MainScreenActivity.java

import com.example.androidhive.R;import android.app.Activity; import

android.content.Intent; import

android.os.Bundle; import android.view.View;

import android.widget.Button;

public class MainScreenActivity extends

Activity{ Button btnViewProducts; Button btnNewProduct;@Override public void onCreate(Bundle savedInstanceState)


setContentView(R.layout.main_screen); // Buttons btnViewProducts = (Button) findViewById(R.id.btnViewProducts);

btnNewProduct = (Button) findViewById(R.id.btnCreateProduct);

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Gambar 6.9 Tampilan data Gambar 6.10 Tampilan edit/delete

PERTEMUAN 7 MEMBUAT APLIKASI DENGAN PHP MYSQL (RELASI TABEL) PART I

PERTEMUAN 8 MEMBUAT APLIKASI DENGAN PHP MYSQL (RELASI TABEL) PART II

Date post:	05-Jul-2018
Category:	Documents
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