Question

我的对话框关闭

 if (status.equals("true")) {
    Toast.makeText(context, "" + msg, Toast.LENGTH_LONG).show();
    notifyDataSetChanged();
    dialog.dismiss();
 }

我使用了notifyDataSetChanged（），但Fragment布局仍未刷新或未更新

Adapter.java

        holder.txt_payRef_update.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if (orderlistArrayList.get(position).getPaymentStatus().equals("0")) {

                final Dialog dialog = new Dialog(context);
                dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
                dialog.setContentView(R.layout.dialog_payment_reference);
                Window window = dialog.getWindow();
                window.setLayout(Toolbar.LayoutParams.FILL_PARENT, Toolbar.LayoutParams.WRAP_CONTENT);

                final TextView txt_orderId = (TextView) dialog.findViewById(R.id.txt_orderId);
                final TextView txt_total_amount = (TextView) dialog.findViewById(R.id.txt_total_amount);
                final TextView txt_doPayment = (TextView) dialog.findViewById(R.id.txt_doPayment);
                final TextView edtxt_order_referenece_id = (EditText) dialog.findViewById(R.id.edtxt_order_referenece_id);


                txt_orderId.setText("Order ID " + orderlistArrayList.get(position).getOrderId());
                txt_total_amount.setText("Total Due Amount " + (context.getResources().getString(R.string.Rs)) + orderlistArrayList.get(position).getTotalPrice());
                edtxt_order_referenece_id.setText(orderlistArrayList.get(position).getPayRef());

                txt_doPayment.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        String Reference_Id = edtxt_order_referenece_id.getText().toString();
                        if (!Reference_Id.equalsIgnoreCase("")) {

                            DoUpdatePaymentRef(orderlistArrayList.get(position).getOrderId(), Reference_Id);

// Toast.makeText（context，“ Done !!”，Toast.LENGTH_LONG）.show（）; // dialog.dismiss（）; }其他{ Toast.makeText（context，“ Please Put Order Reference ID !!”，Toast.LENGTH_LONG）.show（）;

                        }
                    }

                    private void DoUpdatePaymentRef(String orderId, String reference_id) {

                        progress = new ProgressDialog(context);
                        progress.setMessage("Please Wait..");
                        progress.setCancelable(false);
                        progress.show();
                        JSONObject params = new JSONObject();
                        try {
                            params.put("orderId", orderId);
                            params.put("payRef", reference_id);


                        } catch (JSONException e) {
                            e.printStackTrace();
                        }
                        System.out.println("Params orderPayRefUpdate--> " + params.toString());
                        System.out.println(" URL_orderPayRefUpdate--> " + Constant.orderPayRefUpdate);


                        JsonObjectRequest jsonArrayRequest = new JsonObjectRequest(Request.Method.POST, Constant.orderPayRefUpdate, params,
                                new Response.Listener<JSONObject>() {

                                    @Override
                                    public void onResponse(JSONObject response) {
                                        String status = "";
                                        progress.dismiss();

                                        System.out.println("orderPayRefUpdate Response -->" + response.toString());
                                        try {
                                            JSONObject objStatus = new JSONObject(response
                                                    .toString());
                                            status = objStatus.getString("valid");
                                            String msg = objStatus.getString("msg");
                                            if (status != null && !status.equalsIgnoreCase("")) {
                                                if (status.equals("true")) {


                                                    Toast.makeText(context, "" + msg, Toast.LENGTH_LONG).show();

// adapter.notifyDataSetChanged（）; dialog.dismiss（）;

                                                } else {

                                                    Toast.makeText(context, "" + msg, Toast.LENGTH_LONG).show();
                                                }
                                            }

                                        } catch (JSONException e) {
                                            progress.dismiss();
                                            e.printStackTrace();
                                            //Toast.makeText(PersonalInfo_QRActivity.this, "e." + e.toString(), Toast.LENGTH_SHORT).show();
                                        }

                                    }
                                }, new Response.ErrorListener() {

                            public void onErrorResponse(VolleyError error) {
                                System.out.println("Error : " + error.toString());
                            }
                        });
                        jsonArrayRequest.setRetryPolicy(new DefaultRetryPolicy(
                                30000,
                                DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
                                DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
                        VolleySingleton.getInstance(context).getRequestQueue()
                                .add(jsonArrayRequest);
                    }
                });


                dialog.show();

            }
        }
    });

Fragment.java

  adapterOrderList = new AdapterOrderList(getActivity(), orderlistArrayList);
                                        adapterOrderList.notifyDataSetChanged();
                                        grid_view_fragment.setAdapter(adapterOrderList);

Answer 1

更新后，您应该更新orderlistArrayList

中的值

例如，如果您想更新在此编辑文本edtxt_order_referenece_id中输入的文本，则应从编辑文本中获取原始值，并应在项目位置orderlistArrayList.get(position).setPayRef(edtxt_order_referenece_id.getText().toString())对其进行更新< / p>

完成后，应致电notifyDataSetChanged();或notifyItemChanged(position);

在对话框从该片段的适配器关闭后，片段页面刷新中存在问题

1 个答案: