簡単なイベントハンドラ

package com.example.event;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends Activity {

	private Button myButton = null;
	private EditText myEditText = null;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		myButton = (Button)findViewById(R.id.myButton);
		myEditText = (EditText)findViewById(R.id.myEditText);
		myButton.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				myEditText.setText("      ");
			}
		});
	}

	
}