package com.example.exampletodo;
import android.R;
import android.os.Bundle;
import android.app.Activity;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnKeyListener;
import android.widget.EditText;
import android.widget.Button;
import android.widget.ListView;
import java.util.ArrayList;
import android.widget.ArrayAdapter;
public class Main extends Activity implements OnClickListener, OnKeyListener {
EditText txtItem;
Button btnAdd;
ListView listItems;
ArrayList<String> toDoItems;
ArrayAdapter<String> aa;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
txtItem = (EditText)findViewById(R.id.txtItem);
btnAdd = (Button)findViewById(R.id.btnAdd);
listItems = (ListView)findViewById(R.id.listItems);
btnAdd.setOnClickListener(this);
txtItem.setOnKeyListener(this);
toDoItems = new ArrayList<String>();
aa = new ArrayAdapter<String>(this, R.layout.simple_list_item_1, toDoItems);
listItems.setAdapter(aa);
}
private void addItem(String item){
if(item.length() > 0){
this.toDoItems.add(item);
this.aa.notifyDataSetChanged();
this.txtItem.setText("");
}
}
@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;
}
public void onClick(View v){
if(v == this.btnAdd){
this.addItem(this.txtItem.getText().toString());
}
}
public boolean onKey(View v, int keyCode, KeyEvent event){
if(event.getAction() == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_DPAD_CENTER){
this.addItem(this.txtItem.getText().toString());
}
return false;
}
}