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b. Percobaan 2 : Membuat database dengan SQLHelper
Langkah 1: Buat project Android baru pada Eclipse Langkah 2: Tambahkan statement berikut pada main.xml
? xml
version =
1.0 encoding
= utf-8
? LinearLayout
xmlns:android =
http:schemas.android.comapkresandroid android:layout_width
= fill_parent
android:layout_height =
fill_parent android:orientation
= vertical
LinearLayout android:id
= +idLinearLayout02
android:layout_width =
wrap_content android:layout_height
= wrap_content
TextView android:id
= +idTextView01
android:layout_width =
wrap_content android:layout_height
= wrap_content
android:text =
number TextView
EditText android:id
= +ideditText_num
android:layout_width =
wrap_content android:layout_height
= wrap_content
android:phoneNumber =
true EditText
LinearLayout LinearLayout
android:id =
+idLinearLayout03 android:layout_width
= wrap_content
android:layout_height =
wrap_content TextView
android:id =
+idTextView02 android:layout_width
= wrap_content
android:layout_height =
wrap_content android:text
= name
TextView
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EditText android:id
= +ideditText_name
android:layout_width =
wrap_content android:layout_height
= wrap_content
EditText LinearLayout
LinearLayout android:id
= +idLinearLayout01
android:layout_width =
wrap_content android:layout_height
= wrap_content
Button android:id
= +idbut_in
android:layout_width =
wrap_content android:layout_height
= wrap_content
android:onClick =
but_inClick android:text
= Add
Button Button
android:id =
+idbut_Edit android:layout_width
= wrap_content
android:layout_height =
wrap_content android:onClick
= but_EditClick
android:text =
Edit Button
Button android:id
= +idbut_delete
android:layout_width =
wrap_content android:layout_height
= wrap_content
android:onClick =
but_DelClick android:text
= Delete
Button LinearLayout
TextView android:id
= +idTextView03
android:layout_width =
wrap_content android:layout_height
= wrap_content
android:text =
DATA TextView
ListView
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android:id =
+idListView01 android:layout_width
= wrap_content
android:layout_height =
wrap_content ListView
LinearLayout
Langkah 3 : Buatlah sebuah class xml lagi, beri nama view2.xml
? xml
version =
1.0 encoding
= utf-8
? TableLayout
xmlns:android =
http:schemas.android.comapkresandroid android:id
= +idTableLayout01
android:layout_width =
fill_parent android:layout_height
= fill_parent
TextView android:id
= +idname
android:layout_width =
wrap_content android:layout_height
= wrap_content
android:text =
myName TextView
TextView android:id
= +idnumber
android:layout_width =
wrap_content android:layout_height
= wrap_content
android:text =
myNumber TextView
TableLayout
Langkah 4 : Lengkapi statement berikut pada class java MainActivity
import android.app.Activity;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.EditText;
import
android.widget.ListAdapter;
import
android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.AdapterView.OnItemClickListener;
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public class
usingSQLHelper extends
Activity { mySqlHelper
dbHelper ;
private
EditText ed_num
;
private EditText
ed_name ;
protected Cursor
cursor ;
private int
id =-1;
protected ListAdapter
adapter ;
protected ListView
numberList ;
Called when the activity is first created. Override
public void
onCreateBundle savedInstanceState {
super .onCreatesavedInstanceState;
setContentViewR.layout. main
;
this .
ed_num =
EditText
this .findViewByIdR.id.
editText_num ;
this .
ed_name =
EditText
this .findViewByIdR.id.
editText_name ;
this .
numberList =
ListView
this .findViewByIdR.id.
ListView01 ;
dbHelper =
new mySqlHelper
this ;
numberList .setSelected
true
; numberList
.setOnItemClickListener new
OnItemClickListener {
public void
onItemClickAdapterView? arg0, View arg1,
int arg2,
long arg3 {
SQLiteDatabase db
= dbHelper
.getReadableDatabase; cursor
= db.rawQuery
SELECT FROM
data ,
null ;
cursor .moveToPositionarg2;
ed_num .setText
cursor .getString1;
ed_name .setText
cursor .getString2;
id =
cursor .getInt0;
}}; view;
}
private void
addDataString num,String name { SQLiteDatabase db =
dbHelper .getWritableDatabase;
try {
db.execSQL insert
into +
mySqlHelper. TABLE
+ valuesnull,
+num+ ,
+name+ ;
}
catch Exception e
{
Workshop Struktur dan Pemakaian Teknologi Game
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ed_num .setTexte.toString;
} }
public void
but_inClickView v {
addData ed_num
.getText.toString, ed_name
.getText.toString; view;
}
public void
but_DelClickView v {
SQLiteDatabase db = dbHelper
.getWritableDatabase;
try {
if id
=-1 {
db.execSQL delete from
+ mySqlHelper. TABLE
+ where number=
+ ed_num
.getText.toString+ ;
view; }
}
catch Exception e
{ ed_num
.setTexte.toString; }
}
public void
but_EditClickView v {
SQLiteDatabase db = dbHelper
.getWritableDatabase;
try {
if id
=-1 {
db.execSQL update
data set
number= +
ed_num .getText.toString+
,name= +
ed_name .getText.to
String+ where _id=
+ id
; view;
} }
catch Exception e
{ ed_num
.setTexte.toString; }
}
private void
view {
SQLiteDatabase db = dbHelper
.getReadableDatabase;
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try {
cursor = db.rawQuery
SELECT FROM data ,
null ;
adapter =
new
SimpleCursorAdapter
this ,
R.layout. view2
, cursor
,
new String[] {
number ,
name },
new int
[] {R.id. number
,R.id. name
}; numberList
.setAdapter adapter
;}
catch Exception e
{ ed_num
.setTexte.toString; }
} }
Langkah 5 : Kemudian, buatlah sebuah class java baru, beri nama mySqlHelper.java
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
public class
mySqlHelper extends
SQLiteOpenHelper{
private static
final String
DATABASE_NAME =
mydatabase.db ;
private static
final int
DATABASE_VERSION = 1;
Table name
public static
final String
TABLE =
data ;
Columns
public static
final String
number =
number ;
public static
final String
name =
name ;
public
mySqlHelperContext context {
super
context, DATABASE_NAME
,
null
, DATABASE_VERSION
; TODO
Auto-generated constructor stub }
Override
public void
onCreateSQLiteDatabase db { String sql =
create table +
TABLE +
_id
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+ integer primary key autoincrement,
+ number
+ text
not null, +
name +
text not null; ;
Log.d Data
, onCreate:
+ sql; db.execSQLsql;
} Override
public void
onUpgradeSQLiteDatabase db, int
oldVersion, int
newVersion {
TODO Auto-generated method stub
} }
Lakukan editing pada kode yang dicetak tebal berikut pada class AndroidManifest.xml:
? xml
version =
1.0 encoding
= utf-8
? manifest
xmlns:android =
http:schemas.android.comapkresandroid package
= com.data
android:versionCode =
1 android:versionName
= 1.0
uses-sdk android:minSdkVersion
= 10
application android:icon
= drawableic_launcher
android:label =
stringapp_name activity
android:name =
.DatabaseBukuActivity android:label
= stringapp_name
intent-filter action
android:name =
android.intent.action.MAIN category
android:name =
android.intent.category.LAUNCHER intent-filter
activity application
manifest
Langkah 6 :Tekan F11 untuk mendebug aplikasi pada emulator Android Langkah 7 : Maka akan muncul outputnya
Workshop Struktur dan Pemakaian Teknologi Game
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c. Percobaan 3 : Membuat database dengan ContentService
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