윗분말씀이 맞구요...
간단히 소스로 설명드리자면 아래와 같이 하시면 될꺼 같습니다.
1. btn_Home.setOnClickListener(new menuClick(this));
2.
public class menuClick extends Activity implements OnClickListener {
private Activity mActivityt;
public memuClick(Activity activity) {
mActivity = activity;
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_home:
Intent intent = new Intent(mActivity, HomeActivity.class);
mActivity.startActivity(intent);
break;
default:
break;
}
}