Question

所以我正在处理其中有2个片段的片段。看看下面的图片：

显示库存清单的第一个片段名为 fragment_purchase_item_list ，右侧是 fragment_purchase_list

我想做的是，当我从右侧片段的工具栏中单击 SCAN （扫描）时， fragment_qrscan 将替换 fragment_purchase_item_list 。就像下面的图片一样：

有人可以查看并检查为什么我的代码不起作用吗？谢谢！

PurchaseListFragment.java

def has_digit(str):
     return any(char.isdigit() for char in str)

new_df=df[len(df['value1'])>=2 and not df['value1'].startswith("nn") and not has_digit(df['value1'])]

fragment_sales.xml

<-- start of code snippet -->
    @Override
    public void onClick(View v) {
        int id = v.getId();

        switch (id){
            case R.id.btn_paypurchasetransaction:
                Fragment chargeFragment = new ChargeFragment();

                FragmentManager fragmentManager = getFragmentManager();
                FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
                fragmentTransaction.replace(R.id.customersales_content, chargeFragment);
                fragmentTransaction.addToBackStack(null);
                fragmentTransaction.commit();
                break;
            case R.id.layout_transaction_qrcode:
//                Toast.makeText(getActivity(), "Scan Item", Toast.LENGTH_SHORT).show();
                Fragment scanQRCodeFragment = new QRScanFragment();
                FragmentManager fragmentManager1 = getFragmentManager();
                FragmentTransaction fragmentTransaction1 = fragmentManager1.beginTransaction();
                fragmentTransaction1.replace(R.id.inventory_fragment, scanQRCodeFragment);
                fragmentTransaction1.addToBackStack(null);
                fragmentTransaction1.commit();

                break;
            case R.id.layout_transaction_new:
                Toast.makeText(getActivity(), "New Transaction", Toast.LENGTH_SHORT).show();
                break;

        }
    }

<-- end of code snippet>

Answer 1

尝试将getFragmentManager()替换为getChildFragmentManager()

如何在片段内调用片段？

1 个答案: