在android中重新加载片段？

Question

我正在构建一个 android 应用程序，其中单击添加按钮时会打开一个 viewdailog 框，其中有一个用户填写的表单。

我需要的是，在单击该 viewdailog 框的确定按钮时，我的片段应该在用户添加值时重新加载。

这是我在 viewDialog 框中使用的方法 - \

private void viewCategory() {

        AlertDialog.Builder viewDialog = new AlertDialog.Builder(getActivity());

        viewDialog.setTitle("add");

        LayoutInflater li = (LayoutInflater)     
        getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View dialogView = li.inflate(R.layout.customealertdialogbox1, null);
        viewDialog.setView(dialogView);

        viewDialog.setPositiveButton("Ok",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int whichButton) {
                        name = edt1.getText().toString();
                        address = edt2.getText().toString();
                        city = edt3.getText().toString();
                        phone = edt4.getText().toString();
                        //Toast.makeText(getActivity(), name, Toast.LENGTH_SHORT).show();
                        new DownloadJSON().execute();

                    }
                });

        viewDialog.setNegativeButton("Cancel",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int whichButton) {

                    }
                });
        viewDialog.show();

        edt1 = (EditText) dialogView.findViewById(R.id.editbox1);
        edt2 = (EditText) dialogView.findViewById(R.id.editbox2);
        edt3 = (EditText) dialogView.findViewById(R.id.editbox3);
        edt4 = (EditText) dialogView.findViewById(R.id.editbox4);
 }

Answer 1

Fragment frg = new FirstFragment();
FragmentTransaction ft = getActivity().getSupportFragmentManager().beginTransaction();
ft.detach(frg);
ft.attach(frg);
ft.addToBackStack(FirstFragment.class.getSimpleName());
ft.commit();