【Android】SearchViewを使って検索画面を実装する rel : http://blog.ryochin.xyz/archives/80

EditTextEvent.java

EditText editText = (EditText)this.findViewById(R.id.edit_text);
editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
	@Override
	public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
		if (event != null && event.getKeyCode() == KeyEvent.KEYCODE_ENTER) {
			// ここに処理
		}
	}
});