如何取消从startActivityForResult调用的Intent

private static final int REQUEST_CODE = 1;

// 启动子Activity
Intent intent = new Intent(this, ChildActivity.class);
startActivityForResult(intent, REQUEST_CODE);

// 处理子Activity返回的结果
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    
    if (requestCode == REQUEST_CODE) {
        if (resultCode == RESULT_CANCELED) {
            // 取消操作，不做任何处理
        } else {
            // 其他操作，根据需要进行处理
        }
    }
}

// 取消Intent操作
Intent intent = new Intent();
setResult(RESULT_CANCELED, intent);
finish();