@Override
  protected void onCreate(Bundle savedInstanceState) {
    Log.i(Tag, "onCreate");
    super.onCreate(savedInstanceState);
    try {
      setContentView(R.layout.activity_player);

      // プレイヤーの読み込み
      GameData = GameRuleClass.getInstance();
      GameData.loadPlayers(this);

      ToggleButton toggleButton_all = (ToggleButton) findViewById(R.id.player_toggleButton_all);
      toggleButton_all.setChecked(true);

      // リストビュー更新
      ListView_update();
    } catch (Exception e) {
      Log.e(Tag, e.getMessage());
      ErrorReportClass.LogException(this, e);
    }
  }