tutorial membuat Android Todo List aplikasi

android todo list application

Sudah pernah mendengar kan aplikasi todo list di android yang membantu pekerjaan anda sehari-hari dalam mengatur jadwal harian. biasanya kita tahu aplikasi ini tersebar di playstore contohnya any.do todo list apk , dan masih banyak lagi. sekarang kita akan mencoba untuk membuat aplikasi penjadwalan kegiatan harian kita yaitu todo list. seru bukan. mari kita mulai buat saja.

1. buat project terlebih dahulu di eclips atau android studio.
2. kemudian buat kelas-kelas sesuai petunjuk kode saya dibawah ini.

	<?xml version="1.0" encoding="utf-8"?>
	<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
	android:orientation="vertical"
	android:layout_width="fill_parent"
	android:layout_height="fill_parent">
	<ListView
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	android:id="@android:id/list"
	android:layout_weight="1"
	android:layout_margin="10dp" />
	</LinearLayout>

view raw activity_todo.xml hosted with ❤ by GitHub

	<?xml version="1.0" encoding="utf-8"?>
	<manifest xmlns:android="http://schemas.android.com/apk/res/android"
	package="com.javapapers.androidtodo" >
	<application
	android:allowBackup="true"
	android:icon="@drawable/ic_launcher"
	android:label="@string/app_name"
	android:theme="@style/AppTheme" >
	<activity
	android:name=".TodoActivity"
	android:label="@string/app_name" >
	<intent-filter>
	<action android:name="android.intent.action.MAIN" />
	<category android:name="android.intent.category.LAUNCHER" />
	</intent-filter>
	</activity>
	</application>
	</manifest>

view raw AndroidManifest.xml hosted with ❤ by GitHub

	import android.app.AlertDialog;
	import android.app.ListActivity;
	import android.content.ContentValues;
	import android.content.DialogInterface;
	import android.database.Cursor;
	import android.database.sqlite.SQLiteDatabase;
	import android.os.Bundle;
	import android.view.Menu;
	import android.view.MenuItem;
	import android.view.View;
	import android.widget.EditText;
	import android.widget.ListAdapter;
	import android.widget.SimpleCursorAdapter;
	import android.widget.TextView;
	public class TodoActivity extends ListActivity {
	private ListAdapter todoListAdapter;
	private TodoListSQLHelper todoListSQLHelper;
	@Override
	public void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.activity_todo);
	updateTodoList();
	}
	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
	getMenuInflater().inflate(R.menu.todo, menu);
	return true;
	}
	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
	switch (item.getItemId()) {
	case R.id.action_add_task:
	AlertDialog.Builder todoTaskBuilder = new AlertDialog.Builder(this);
	todoTaskBuilder.setTitle("Add Todo Task Item");
	todoTaskBuilder.setMessage("describe the Todo task...");
	final EditText todoET = new EditText(this);
	todoTaskBuilder.setView(todoET);
	todoTaskBuilder.setPositiveButton("Add Task", new DialogInterface.OnClickListener() {
	@Override
	public void onClick(DialogInterface dialogInterface, int i) {
	String todoTaskInput = todoET.getText().toString();
	todoListSQLHelper = new TodoListSQLHelper(TodoActivity.this);
	SQLiteDatabase sqLiteDatabase = todoListSQLHelper.getWritableDatabase();
	ContentValues values = new ContentValues();
	values.clear();
	//write the Todo task input into database table
	values.put(TodoListSQLHelper.COL1_TASK, todoTaskInput);
	sqLiteDatabase.insertWithOnConflict(TodoListSQLHelper.TABLE_NAME, null, values, SQLiteDatabase.CONFLICT_IGNORE);
	//update the Todo task list UI
	updateTodoList();
	}
	});
	todoTaskBuilder.setNegativeButton("Cancel", null);
	todoTaskBuilder.create().show();
	return true;
	default:
	return false;
	}
	}
	//update the todo task list UI
	private void updateTodoList() {
	todoListSQLHelper = new TodoListSQLHelper(TodoActivity.this);
	SQLiteDatabase sqLiteDatabase = todoListSQLHelper.getReadableDatabase();
	//cursor to read todo task list from database
	Cursor cursor = sqLiteDatabase.query(TodoListSQLHelper.TABLE_NAME,
	new String[]{TodoListSQLHelper._ID, TodoListSQLHelper.COL1_TASK},
	null, null, null, null, null);
	//binds the todo task list with the UI
	todoListAdapter = new SimpleCursorAdapter(
	this,
	R.layout.todotask,
	cursor,
	new String[]{TodoListSQLHelper.COL1_TASK},
	new int[]{R.id.todoTaskTV},
	0
	);
	this.setListAdapter(todoListAdapter);
	}
	//closing the todo task item
	public void onDoneButtonClick(View view) {
	View v = (View) view.getParent();
	TextView todoTV = (TextView) v.findViewById(R.id.todoTaskTV);
	String todoTaskItem = todoTV.getText().toString();
	String deleteTodoItemSql = "DELETE FROM " + TodoListSQLHelper.TABLE_NAME +
	" WHERE " + TodoListSQLHelper.COL1_TASK + " = '" + todoTaskItem + "'";
	todoListSQLHelper = new TodoListSQLHelper(TodoActivity.this);
	SQLiteDatabase sqlDB = todoListSQLHelper.getWritableDatabase();
	sqlDB.execSQL(deleteTodoItemSql);
	updateTodoList();
	}
	}

view raw TodoActivity.java hosted with ❤ by GitHub

	//catatan untuk membuat kelas ini buatlah terlebih dahaulu sqlite yang akan di includekan kedalan kealas TodoListSQLHelpe ini.
	import android.content.Context;
	import android.database.sqlite.SQLiteDatabase;
	import android.database.sqlite.SQLiteOpenHelper;
	import android.provider.BaseColumns;
	public class TodoListSQLHelper extends SQLiteOpenHelper {
	public static final String DB_NAME = "com.javapapers.androidtodo";
	public static final String TABLE_NAME = "TODO_LIST";
	public static final String COL1_TASK = "todo";
	public static final String _ID = BaseColumns._ID;
	public TodoListSQLHelper(Context context) {
	//1 is todo list database version
	super(context, DB_NAME, null, 1);
	}
	@Override
	public void onCreate(SQLiteDatabase sqlDB) {
	String createTodoListTable = "CREATE TABLE " + TABLE_NAME + " ( _id INTEGER PRIMARY KEY AUTOINCREMENT, " +
	COL1_TASK + " TEXT)";
	sqlDB.execSQL(createTodoListTable);
	}
	@Override
	public void onUpgrade(SQLiteDatabase sqlDB, int i, int i2) {
	sqlDB.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME);
	onCreate(sqlDB);
	}
	}

view raw TodoListSQLHelper.java hosted with ❤ by GitHub

	<?xml version="1.0" encoding="utf-8"?>
	<RelativeLayout
	android:layout_width="fill_parent"
	android:layout_height="fill_parent"
	xmlns:android="http://schemas.android.com/apk/res/android">
	<TextView
	android:layout_width="wrap_content"
	android:layout_height="fill_parent"
	android:id="@+id/todoTaskTV"
	android:layout_alignParentTop="true"
	android:layout_alignParentLeft="true"
	android:layout_alignParentStart="true"
	android:layout_toLeftOf="@+id/completeBtn"
	android:layout_alignBottom="@+id/completeBtn"
	android:gravity="center_vertical"
	android:paddingTop="20dp" />
	<Button
	android:layout_width="wrap_content"
	android:layout_height="wrap_content"
	android:text="Complete"
	android:id="@+id/completeBtn"
	android:layout_alignParentTop="true"
	android:layout_alignParentRight="true"
	android:layout_alignParentEnd="true"
	android:onClick="onDoneButtonClick" />
	</RelativeLayout>

view raw todotask.xml hosted with ❤ by GitHub

kemudian jalankan aplikasi anda atau bisa langsung di install dan hasilnya bisa anda nikmati sendiri selamat mencoba teman. jangan lupa share artikel ini ya. :)