Java tutorial
package com.alivenet.dmvtaxi.fragment; import android.app.ProgressDialog; import android.content.Context; import android.content.SharedPreferences; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.support.v7.widget.DefaultItemAnimator; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import android.util.Log; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.inputmethod.InputMethodManager; import android.widget.TextView; import android.widget.Toast; import com.alivenet.dmvtaxi.R; import com.alivenet.dmvtaxi.adapter.RideListRecyclerViewAdapter; import com.alivenet.dmvtaxi.commonutil.CommanMethod; import com.alivenet.dmvtaxi.commonutil.SpacesItemDecoration; import com.alivenet.dmvtaxi.commonutil.WebserviceUrlClass; import com.alivenet.dmvtaxi.pojo.RideListResource; import com.hudomju.swipe.OnItemClickListener; import com.hudomju.swipe.SwipeToDismissTouchListener; import com.hudomju.swipe.SwipeableItemClickListener; import com.hudomju.swipe.adapter.ListViewAdapter; import com.hudomju.swipe.adapter.RecyclerViewAdapter; import com.loopj.android.http.AsyncHttpClient; import com.loopj.android.http.JsonHttpResponseHandler; import com.loopj.android.http.RequestParams; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import java.util.ArrayList; import java.util.Collections; import cz.msebera.android.httpclient.Header; public class Fragment_ride_list extends Fragment { RecyclerView recyclerView; RideListRecyclerViewAdapter rcAdapter; public static final String MYPREF = "user_info"; SharedPreferences mPref; public String mUserId; TextView mnorides; private ArrayList<RideListResource> mRideList = new ArrayList<RideListResource>(); ProgressDialog progressDialog; private static final int VERTICAL_ITEM_SPACE = 5; public static Fragment_ride_list newInstance(String sectionTitle) { Fragment_ride_list fragment = new Fragment_ride_list(); Bundle args = new Bundle(); // args.putString(ARG_SECTION_TITLE, sectionTitle); fragment.setArguments(args); return fragment; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); final InputMethodManager imm = (InputMethodManager) getActivity() .getSystemService(Context.INPUT_METHOD_SERVICE); imm.hideSoftInputFromWindow(getView().getWindowToken(), 0); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_ride_list, container, false); mPref = getActivity().getSharedPreferences(MYPREF, Context.MODE_PRIVATE); mUserId = mPref.getString("userId", null); progressDialog = new ProgressDialog(getActivity()); progressDialog.setMessage("Please wait..."); progressDialog.setCancelable(false); recyclerView = (RecyclerView) view.findViewById(R.id.recycler_view); recyclerView.setHasFixedSize(true); LinearLayoutManager llm = new LinearLayoutManager(getActivity()); llm.setOrientation(LinearLayoutManager.VERTICAL); recyclerView.addItemDecoration(new SpacesItemDecoration(VERTICAL_ITEM_SPACE)); recyclerView.setLayoutManager(llm); recyclerView.setItemAnimator(new DefaultItemAnimator()); mnorides = (TextView) view.findViewById(R.id.tv_norides); RequestParams params = new RequestParams(); params.put("userId", mUserId); rideListWs(params); view.setFocusableInTouchMode(true); view.requestFocus(); view.setOnKeyListener(new View.OnKeyListener() { @Override public boolean onKey(View v, int keyCode, KeyEvent event) { if (event.getAction() == KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_BACK) { // handle back button's click listener if (keyCode == KeyEvent.KEYCODE_BACK) { Fragment homeFragment = new FragmentMainScreen(); FragmentManager frgManager; frgManager = getFragmentManager(); frgManager.beginTransaction().replace(R.id.fragment_switch, homeFragment).commit(); return true; } return true; } return false; } }); return view; } public void rideListWs(RequestParams params) { String url = WebserviceUrlClass.RideList; AsyncHttpClient client = new AsyncHttpClient(); client.post(url, params, new JsonHttpResponseHandler() { @Override public void onStart() { super.onStart(); progressDialog.show(); } @Override public void onSuccess(int statusCode, Header[] headers, JSONObject response) { super.onSuccess(statusCode, headers, response); progressDialog.hide(); try { JSONObject object = new JSONObject(response.toString()); Log.e("Json_conRidelist", "" + object.toString(2)); String responseCode = response.getString("responseCode"); String responseMessage = response.getString("responseMsg"); if (responseCode.equals("200")) { if (responseMessage.equals("success")) { if (response.get("rideList") instanceof JSONArray) { mRideList.clear(); RideListResource mRide = null; JSONArray jsonArray = null; jsonArray = response.getJSONArray("rideList"); for (int i = 0; i < jsonArray.length(); i++) { mRide = new RideListResource(); JSONObject obj = (JSONObject) jsonArray.get(i); if (obj.getString("bookingId").toString().trim().equals("null") || obj.getString("bookingId").equals("")) { mRide.setBookingId(""); } else { mRide.setBookingId(obj.getString("bookingId").toString().trim()); } if (obj.getString("bookingTime").toString().trim().equals("null") || obj.getString("bookingTime").equals("")) { mRide.setBookingTime(""); } else { mRide.setBookingTime(obj.getString("bookingTime").toString().trim()); } if (obj.getString("cabName").toString().trim().equals("null") || obj.getString("cabName").equals("")) { mRide.setCabName(""); } else { mRide.setCabName(obj.getString("cabName").toString().trim()); } if (obj.getString("vehicle").toString().trim().equals("null") || obj.getString("vehicle").equals("")) { mRide.setVehicle(""); } else { mRide.setVehicle(obj.getString("vehicle").toString().trim()); } if (obj.getString("licenseId").toString().trim().equals("null") || obj.getString("licenseId").equals("")) { mRide.setLicenseId(""); } else { mRide.setLicenseId(obj.getString("licenseId").toString().trim()); } if (obj.getString("cabIcon").toString().trim().equals("null") || obj.getString("cabIcon").equals("")) { mRide.setCabIcon(""); } else { mRide.setCabIcon(obj.getString("cabIcon").toString().trim()); } if (obj.getString("driverImage").toString().trim().equals("null") || obj.getString("driverImage").equals("")) { mRide.setDriverImage(""); } else { mRide.setDriverImage(obj.getString("driverImage").toString().trim()); } if (obj.getString("pickupLat").toString().trim().equals("null") || obj.getString("pickupLat").equals("")) { mRide.setPickupLat(""); } else { mRide.setPickupLat(obj.getString("pickupLat").toString().trim()); } if (obj.getString("pickupLong").toString().trim().equals("null") || obj.getString("pickupLong").equals("")) { mRide.setPickupLong(""); } else { mRide.setPickupLong(obj.getString("pickupLong").toString().trim()); } if (obj.getString("destinationLat").toString().trim().equals("null") || obj.getString("destinationLat").equals("")) { mRide.setDestinationLat(""); } else { mRide.setDestinationLat(obj.getString("destinationLat").toString().trim()); } if (obj.getString("destinationLong").toString().trim().equals("null") || obj.getString("destinationLong").equals("")) { mRide.setDestinationLong(""); } else { mRide.setDestinationLong( obj.getString("destinationLong").toString().trim()); } if (obj.getString("status").toString().trim().equals("null") || obj.getString("status").equals("")) { mRide.setUstatus(""); } else { mRide.setUstatus(obj.getString("status").toString().trim()); } if (obj.getString("estDistance").toString().trim().equals("null") || obj.getString("estDistance").equals("")) { mRide.setEstDistance(""); } else { mRide.setEstDistance(obj.getString("estDistance").toString().trim()); } if (obj.getString("estTime").toString().trim().equals("null") || obj.getString("estTime").equals("")) { mRide.setEstTime(""); } else { mRide.setEstTime(obj.getString("estTime").toString().trim()); } if (obj.getString("estFare").toString().trim().equals("null") || obj.getString("estFare").equals("")) { mRide.setEstFare(""); } else { mRide.setEstFare(obj.getString("estFare").toString().trim()); } if (obj.getString("pickupAddress").toString().trim().equals("null") || obj.getString("pickupAddress").equals("")) { mRide.setPickaddress(""); } else { mRide.setPickaddress(obj.getString("pickupAddress").toString().trim()); } if (obj.getString("destinationAddress").toString().trim().equals("null") || obj.getString("destinationAddress").equals("")) { mRide.setDestaddress(""); } else { mRide.setDestaddress(obj.getString("destinationAddress").toString().trim()); } mRideList.add(mRide); } if (mRideList != null) { rcAdapter = new RideListRecyclerViewAdapter(getActivity(), mRideList); recyclerView.setAdapter(rcAdapter); } else { mnorides.setVisibility(View.VISIBLE); } } else { CommanMethod.showAlert("No Ride List Found.", getActivity()); } } } else { Toast.makeText(getActivity(), "" + responseMessage, Toast.LENGTH_LONG).show(); } } catch (JSONException e) { e.printStackTrace(); } } @Override public void onFailure(int statusCode, Header[] headers, Throwable throwable, JSONObject errorResponse) { progressDialog.dismiss(); CommanMethod.showAlert(getResources().getString(R.string.connection_error), getActivity()); } @Override public void onFinish() { super.onFinish(); progressDialog.dismiss(); } }); } }