如何确定Angular路由重定向的来源？

Question

我有一个Angular 6 SPA。该应用程序会定期在iframe中进行后台操作（以静默方式刷新OAuth令牌）。每次我的应用程序执行此操作时，它都会重定向到“ /”路由。这是不受欢迎的行为，原因是如果用户在填写表单的过程中会丢失自己的表单并被重定向。

我认为重定向是由于代码中的某些内容而发生的；也许是后卫。有没有办法确定Angular中路由重定向的来源？

Answer 1

您可以使用enableTracing启用调试模式以进行角度路由

@Override
public View getView(final int position, View v, ViewGroup viewGroup) {


    decimalFormat = new DecimalFormat("###,##0.00");
    dbHelper = new DBHelper(c);
    sqldb = dbHelper.getWritableDatabase();
    dbManager = new DBManager(c);
    dbManager.open();

    getTripDetails();


    if (v == null) {
        v = LayoutInflater.from(c).inflate(R.layout.item_payment, viewGroup, false);
        viewHolder = new PaymentList2ViewHolder(v);
        v.setTag(viewHolder);

    } else {
        viewHolder = (PaymentList2ViewHolder) v.getTag();
    }

    if (getCount() == 0) {

        viewGroup.removeAllViews();

    } else {
        Payment2Item s = (Payment2Item) getItem(position);

        viewHolder.tvId.setText(s.getSeatID());
        viewHolder.tvSeatNo.setText(s.getSeatNo());
        viewHolder.tvPassengerName.setText(s.getfName() + " " + s.getlName());
        viewHolder.tvPassengerType.setText(s.getPassengerType());
        viewHolder.tvFareAmount.setText(s.getFare());
        viewHolder.txtAmountToPay.setText(s.getPayment());
        viewHolder.tvDiscountedAmount.setText(s.getDiscount());

        JSONObject dataObject = null;
        try {
            dataObject = objAllSched.getJSONObject("data");

            JSONArray schedArray = dataObject.getJSONArray("schedules");

            Log.e("schedArray", String.valueOf(schedArray));
            if (dataObject.length() != 0) {
                for (int i = 0; i < schedArray.length(); i++) {
                    JSONObject object = schedArray.getJSONObject(i);
                    String id = null;
                    id = object.getString("id");
                    Log.e("object ", String.valueOf(object));
                    if (id.toString().equalsIgnoreCase(scheduleId)) {

                        JSONArray faresArray = object.getJSONArray("fares");
                        Log.e("fare array", String.valueOf(faresArray));

                        for (int sab = 0; sab < faresArray.length(); sab++) {
                            JSONObject object2 = faresArray.getJSONObject(sab);
                            String name = null;
                            name = object2.getString("name");

                            if (s.getPassengerType().equalsIgnoreCase(name)) {
                                price = Double.parseDouble(object2.getString("price"));
                                viewHolder.tvFareAmount.setText(decimalFormat.format(price));
                                viewHolder.txtAmountToPay.setText(decimalFormat.format(price));
                            }
                        }
                    }
                }
            }

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

    /*viewHolder.txtAmountToPay.setText(itemArrayPayment2List.get(position).getPayment());
    viewHolder.txtAmountToPay.setId(position);


    viewHolder.txtAmountToPay.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {

        }

        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {

            Double firstValue = TextUtils.isEmpty(viewHolder.tvFareAmount.getText().toString().trim().replace(",", "")) ? 0 :
                    Double.parseDouble(viewHolder.tvFareAmount.getText().toString().trim().replace(",", ""));

            Double secondValue = TextUtils.isEmpty(viewHolder.txtAmountToPay.getText().toString().trim().replace(",", "")) ? 0 :
                    Double.parseDouble(viewHolder.txtAmountToPay.getText().toString().trim().replace(",", ""));

            Double answer = firstValue - secondValue;



        }

        @Override
        public void afterTextChanged(Editable s) {

        }
    });*/

    return v;
}

 public class PaymentList2ViewHolder {
    TextView tvId, tvSeatNo, tvPassengerName, tvPassengerType, tvFareAmount, tvDiscountedAmount;

    EditText txtAmountToPay;


    PaymentList2ViewHolder(View v) {

        tvId = v.findViewById(R.id.tvId);
        tvSeatNo = v.findViewById(R.id.tvSeatNo);
        tvPassengerName = v.findViewById(R.id.tvPassengerName);
        tvPassengerType = v.findViewById(R.id.tvPassengerType);

        tvFareAmount = v.findViewById(R.id.tvFareAmount);
        tvDiscountedAmount = v.findViewById(R.id.tvDiscountedAmount);
        txtAmountToPay = v.findViewById(R.id.txtAmountToPay);

        //v.setTag(viewHolder);

    }
}

使用路由时，您将看到应用程序中正在运行许多事件。因此，您可以更轻松地进行调试。希望有帮助。