如何将数组列表数据从一个对话框片段传递到另一个对话框片段？

Question

在网上找了半天也没找到满足我要求的方案。我有一个传递到对话框片段中的数组列表，但我的要求是：当用户选择日期时，它再次调用网络服务并根据数据获取另一个数据并传递相同的对话片段。我怎样才能做到这一点？我试过使用静态值，但它没有清除值。我的代码是：

public static class DatePickerDialogFragment extends DialogFragment implements
        DatePickerDialog.OnDateSetListener
{
    String userName;


    public interface UserUserIdListener {
        void updateIdUserName(String userName);


    }
    public static final int FLAG_START_DATE = 0;
    public static final int FLAG_END_DATE = 1;
   public  static  List<Orederlist>reportorderIdList=new ArrayList<>();
   // private   List<Userlist> reportUserList = new ArrayList<>();


    private int flag = 0;

    @NonNull
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        Calendar calendar = Calendar.getInstance();

        int year = calendar.get(Calendar.YEAR);
        int month = calendar.get(Calendar.MONTH);
        int day = calendar.get(Calendar.DAY_OF_MONTH);

        return new DatePickerDialog(getActivity(), this, year, month, day);
    }

    public void setFlag(int i) {
        flag = i;
    }


    @Override
    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
        Calendar calendar = Calendar.getInstance();
        Calendar calendar1=Calendar.getInstance();
        calendar1.set(year, monthOfYear, dayOfMonth);
        calendar.set(year, monthOfYear, dayOfMonth);
        String  reportOrderIds="";
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");

        if (flag == FLAG_START_DATE) {
            textviewFromDate.setText(format.format(calendar.getTime()));
            fromDateReport=textviewFromDate.getText().toString();

            JSONObject pieObject = new JSONObject();
            try
            {
                pieObject.put("fromDate",""+fromDateReport);
                pieObject.put("orderId",""+reportOrderIds);
                pieObject.put("password",""+sPrefs.getString(Constants.PASSWORD,""));
                pieObject.put("toDate",""+toDateReport);
                pieObject.put("user",""+sPrefs.getString(Constants.USER_NAME,""));
                pieObject.put("subUser",""+reportSubUsers);
                progressDialog = new ProgressDialog(getContext());
                progressDialog.setMessage("Loading....");
                progressDialog.setCancelable(false);
                progressDialog.show();



            } catch (Exception e)
            {
                e.printStackTrace();
            }
            // String TAG = "delivered";
            RequestQueue requestQueue = Volley.newRequestQueue(getContext());
            JsonObjectRequest jsOnbjRequest = new
                    JsonObjectRequest(Request.Method.POST,
                            Constants.GetSummarizedReports, pieObject,
                            new Response.Listener<JSONObject>() {
                                @Override
                                public void onResponse(JSONObject response)
                                {
                                    progressDialog.dismiss();
                                    try {
                                        JSONArray jsonArray = (JSONArray) response.get("orderlist");
                                        {
                                            if (jsonArray.length()>0)
                                            {
                                                for (int i = 0; i < jsonArray.length(); i++) {
                                                    JSONObject json = jsonArray.getJSONObject(i);
                                                    // Integer name = json.optInt();
                                                    String name = json.optString("orderId").toString();
                                                    Orederlist user = new Orederlist(name);
                                                    user.setOrderId(name);
                                                    reportorderIdList.add(user);

                                                }}
                                        }
                                    } catch (Exception e) {
                                        e.printStackTrace();
                                    }

                                }
                            },

                            new Response.ErrorListener() {
                                @Override
                                public void onErrorResponse(VolleyError error) {
                                    progressDialog.dismiss();

                                }
                            }) {
                        @Override
                        public String getBodyContentType() {
                            return "application/json";
                        }

                    };
            jsOnbjRequest.setRetryPolicy(new DefaultRetryPolicy(500000,
                    DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
                    DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));

            requestQueue.add(jsOnbjRequest);

        } else if (flag == FLAG_END_DATE) {
            textviewToDate.setText(format.format( calendar1.getTime()));
            toDateReport= textviewToDate.getText().toString();
            JSONObject pieObject = new JSONObject();

            try
            {
                pieObject.put("fromDate",""+fromDateReport);
                pieObject.put("orderId",""+reportOrderIds);
                pieObject.put("password",""+sPrefs.getString(Constants.PASSWORD,""));
                pieObject.put("toDate",""+toDateReport);
                pieObject.put("user",""+sPrefs.getString(Constants.USER_NAME,""));
                pieObject.put("subUser",""+reportSubUsers);

                progressDialog = new ProgressDialog(getContext());
                progressDialog.setMessage("Loading....");
                progressDialog.setCancelable(false);
                progressDialog.show();



            } catch (Exception e)
            {
                e.printStackTrace();
            }
            // String TAG = "delivered";
            RequestQueue requestQueue = Volley.newRequestQueue(getContext());
            JsonObjectRequest jsOnbjRequest = new
                    JsonObjectRequest(Request.Method.POST,
                            Constants.GetSummarizedReports, pieObject,
                            new Response.Listener<JSONObject>() {
                                @Override
                                public void onResponse(JSONObject response)
                                {
                                    progressDialog.dismiss();

                                    try {
                                        JSONArray jsonArray = (JSONArray) response.get("orderlist");
                                        {
                                            if (jsonArray.length()>0)
                                            {
                                                for (int i = 0; i < jsonArray.length(); i++) {
                                                    JSONObject json = jsonArray.getJSONObject(i);
                                                    // Integer name = json.optInt();
                                                    String name = json.optString("orderId").toString();
                                                    Orederlist user = new Orederlist(name);
                                                    user.setOrderId(name);
                                                    reportorderIdList.add(user);

                                                }


                                            }
                                        }
                                    } catch (Exception e) {
                                        e.printStackTrace();
                                    }
                                }
                            },

                            new Response.ErrorListener() {
                                @Override
                                public void onErrorResponse(VolleyError error) {
                                    progressDialog.dismiss();

                                }
                            }) {
                        @Override
                        public String getBodyContentType() {
                            return "application/json";
                        }

                    };
            jsOnbjRequest.setRetryPolicy(new DefaultRetryPolicy(500000,
                    DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
                    DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));

            requestQueue.add(jsOnbjRequest);

        }
    }


}

对话片段传递数据为：

FragmentManager managerOrderIds = getSupportFragmentManager();
            UserJobIds dialogOrderIds = new UserJobIds();
            dialogOrderIds.setdata(orderIdList,reportorderIdList);//with static array list which is not claer the value
            dialogOrderIds.show(managerOrderIds, "Dialog");

Answer 1

你可以做的只是创建一个 Dialog Fragment 的新实例并为其分配数据，然后调用 show()。下面是一个示例。

public class D2Fragment extends DialogFragment {
private ArrayList<String> list;
public static D2Fragment getInstanceFor(ArrayList<String> list){
    D2Fragment d2Fragment=new D2Fragment();
    d2Fragment.list=list;
    return d2Fragment;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.item_dialog, container,
            false);
    getDialog().setTitle("DialogFragment Sample");
    Log.e("size",list.size()+"");// Here is the list 
    // Do something else
    return rootView;
}

}

显示对话框时。

 ArrayList<String> list=new ArrayList<>();
    list.add("Val1");
    list.add("Val2");
    D2Fragment d2Fragment=D2Fragment.getInstanceFor(list);
    d2Fragment.show(getSupportFragmentManager(),"dialog2");

或只需为您的数据创建一个setter。

public class D2Fragment extends DialogFragment {
private ArrayList<String> list;
public void setData(ArrayList<String> list){
    this.list=list;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.item_dialog, container,
            false);
    getDialog().setTitle("DialogFragment Sample");
    Log.e("size",list.size()+"");// Here is the list
    // Do something else
    return rootView;
}

}

并显示对话框。

 ArrayList<String> list = new ArrayList<>();
    list.add("Val1");
    list.add("Val2");
    D2Fragment d2Fragment = new D2Fragment();
    d2Fragment.setData(list);
    d2Fragment.show(getSupportFragmentManager(), "dialog2");

在 activity 中，您始终可以通过交易时指定的标签找到特定的 DialgFragment。

 Fragment fragment=getSupportFragmentManager().findFragmentByTag("dialog2");
            if(fragment!=null && fragment instanceof D2Fragment){
                ((D2Fragment)fragment).call();// You can call any public method of this dialog fragment here
            }

如何将数组列表数据从一个对话框片段传递到另一个对话框片段？

how to pass array list data from one dialog fragment to another dialog fragment?

android

android-dialogfragment