Java tutorial
/* * Shares Analysis * Copyright (C) 2016 Adithya J * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/> */ package com.adithya321.sharesanalysis.fragments; import android.app.DatePickerDialog; import android.app.Dialog; import android.content.DialogInterface; import android.os.Build; import android.os.Bundle; import android.support.annotation.Nullable; import android.support.design.widget.FloatingActionButton; import android.support.v4.app.Fragment; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.WindowManager; import android.widget.ArrayAdapter; import android.widget.AutoCompleteTextView; import android.widget.Button; import android.widget.DatePicker; import android.widget.EditText; import android.widget.ImageView; import android.widget.RadioButton; import android.widget.Spinner; import android.widget.TextView; import android.widget.Toast; import com.adithya321.sharesanalysis.R; import com.adithya321.sharesanalysis.adapters.PurchaseShareAdapter; import com.adithya321.sharesanalysis.database.DatabaseHandler; import com.adithya321.sharesanalysis.database.Purchase; import com.adithya321.sharesanalysis.database.Share; import com.adithya321.sharesanalysis.utils.ShareUtils; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.List; import java.util.Locale; import io.realm.RealmList; public class PurchaseShareFragment extends Fragment implements View.OnClickListener { private DatabaseHandler databaseHandler; private int year_start, month_start, day_start; private List<Share> sharesList; private List<Purchase> purchaseList; private RecyclerView sharePurchasesRecyclerView; private TextView emptyTV; private ImageView arrow; @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { ViewGroup root = (ViewGroup) inflater.inflate(R.layout.fragment_share_purchase, container, false); databaseHandler = new DatabaseHandler(getContext()); sharePurchasesRecyclerView = (RecyclerView) root.findViewById(R.id.share_purchases_recycler_view); emptyTV = (TextView) root.findViewById(R.id.empty); arrow = (ImageView) root.findViewById(R.id.arrow); setRecyclerViewAdapter(); FloatingActionButton addPurchaseFab = (FloatingActionButton) root.findViewById(R.id.add_purchase_fab); addPurchaseFab.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { final Dialog dialog = new Dialog(getContext()); dialog.setTitle("Add Share Purchase"); dialog.setContentView(R.layout.dialog_add_share_purchase); dialog.getWindow().setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.WRAP_CONTENT); dialog.show(); final AutoCompleteTextView name = (AutoCompleteTextView) dialog.findViewById(R.id.share_name); List<String> nseList = ShareUtils.getNseList(getContext()); ArrayAdapter<String> arrayAdapter = new ArrayAdapter<>(getContext(), android.R.layout.simple_dropdown_item_1line, nseList); name.setAdapter(arrayAdapter); final Spinner spinner = (Spinner) dialog.findViewById(R.id.existing_spinner); ArrayList<String> shares = new ArrayList<>(); for (Share share : sharesList) { shares.add(share.getName()); } ArrayAdapter<String> spinnerAdapter = new ArrayAdapter<>(getContext(), android.R.layout.simple_spinner_item, shares); spinnerAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinner.setAdapter(spinnerAdapter); final RadioButton newRB = (RadioButton) dialog.findViewById(R.id.radioBtn_new); RadioButton existingRB = (RadioButton) dialog.findViewById(R.id.radioBtn_existing); if (shares.size() == 0) existingRB.setVisibility(View.GONE); (newRB).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { name.setVisibility(View.VISIBLE); spinner.setVisibility(View.GONE); } }); (existingRB).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { name.setVisibility(View.GONE); spinner.setVisibility(View.VISIBLE); } }); Calendar calendar = Calendar.getInstance(); year_start = calendar.get(Calendar.YEAR); month_start = calendar.get(Calendar.MONTH) + 1; day_start = calendar.get(Calendar.DAY_OF_MONTH); final Button selectDate = (Button) dialog.findViewById(R.id.select_date); selectDate.setText(new StringBuilder().append(day_start).append("/").append(month_start).append("/") .append(year_start)); selectDate.setOnClickListener(this); Button addPurchaseBtn = (Button) dialog.findViewById(R.id.add_purchase_btn); addPurchaseBtn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Share share = new Share(); share.setId(databaseHandler.getNextKey("share")); share.setPurchases(new RealmList<Purchase>()); Purchase purchase = new Purchase(); purchase.setId(databaseHandler.getNextKey("purchase")); if (newRB.isChecked()) { String sName = name.getText().toString().trim(); if (sName.equals("")) { Toast.makeText(getActivity(), "Invalid Name", Toast.LENGTH_SHORT).show(); return; } else { share.setName(sName); purchase.setName(sName); } } String stringStartDate = year_start + " " + month_start + " " + day_start; DateFormat format = new SimpleDateFormat("yyyy MM dd", Locale.ENGLISH); try { Date date = format.parse(stringStartDate); share.setDateOfInitialPurchase(date); purchase.setDate(date); } catch (Exception e) { Toast.makeText(getActivity(), "Invalid Date", Toast.LENGTH_SHORT).show(); return; } EditText quantity = (EditText) dialog.findViewById(R.id.no_of_shares); try { purchase.setQuantity(Integer.parseInt(quantity.getText().toString())); } catch (Exception e) { Toast.makeText(getActivity(), "Invalid Number of Shares", Toast.LENGTH_SHORT).show(); return; } EditText price = (EditText) dialog.findViewById(R.id.buying_price); try { purchase.setPrice(Double.parseDouble(price.getText().toString())); } catch (Exception e) { Toast.makeText(getActivity(), "Invalid Buying Price", Toast.LENGTH_SHORT).show(); return; } purchase.setType("buy"); if (newRB.isChecked()) { if (!databaseHandler.addShare(share, purchase)) { Toast.makeText(getActivity(), "Share Already Exists", Toast.LENGTH_SHORT).show(); return; } } else { purchase.setName(spinner.getSelectedItem().toString()); databaseHandler.addPurchase(spinner.getSelectedItem().toString(), purchase); } setRecyclerViewAdapter(); dialog.dismiss(); } }); } }); return root; } private DatePickerDialog.OnDateSetListener onDateSetListener = new DatePickerDialog.OnDateSetListener() { @Override public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { year_start = year; month_start = monthOfYear + 1; day_start = dayOfMonth; } }; private void setRecyclerViewAdapter() { sharesList = databaseHandler.getShares(); purchaseList = databaseHandler.getPurchases(); if (sharesList.size() < 1) { emptyTV.setVisibility(View.VISIBLE); arrow.setVisibility(View.VISIBLE); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { if (getResources().getConfiguration().orientation == 1) { arrow.setBackground(getResources().getDrawable(R.drawable.curved_line_vertical)); } else { arrow.setBackground((getResources().getDrawable(R.drawable.curved_line_horizontal))); } } } else { emptyTV.setVisibility(View.GONE); arrow.setVisibility(View.GONE); } PurchaseShareAdapter purchaseAdapter = new PurchaseShareAdapter(getContext(), purchaseList); purchaseAdapter.setOnItemClickListener(new PurchaseShareAdapter.OnItemClickListener() { @Override public void onItemClick(View itemView, int position) { final Purchase purchase = purchaseList.get(position); final Dialog dialog = new Dialog(getContext()); dialog.setTitle("Edit Share Purchase"); dialog.setContentView(R.layout.dialog_add_share_purchase); dialog.getWindow().setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.WRAP_CONTENT); dialog.show(); RadioButton newRB = (RadioButton) dialog.findViewById(R.id.radioBtn_new); RadioButton existingRB = (RadioButton) dialog.findViewById(R.id.radioBtn_existing); AutoCompleteTextView name = (AutoCompleteTextView) dialog.findViewById(R.id.share_name); newRB.setVisibility(View.GONE); existingRB.setChecked(true); name.setVisibility(View.GONE); final Spinner spinner = (Spinner) dialog.findViewById(R.id.existing_spinner); ArrayList<String> shares = new ArrayList<>(); int pos = 0; for (int i = 0; i < sharesList.size(); i++) { shares.add(sharesList.get(i).getName()); if (sharesList.get(i).getName().equals(purchase.getName())) pos = i; } ArrayAdapter<String> spinnerAdapter = new ArrayAdapter<>(getContext(), android.R.layout.simple_spinner_item, shares); spinnerAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinner.setAdapter(spinnerAdapter); spinner.setSelection(pos); spinner.setVisibility(View.VISIBLE); final EditText quantity = (EditText) dialog.findViewById(R.id.no_of_shares); final EditText price = (EditText) dialog.findViewById(R.id.buying_price); quantity.setText(String.valueOf(purchase.getQuantity())); price.setText(String.valueOf(purchase.getPrice())); Calendar calendar = Calendar.getInstance(); calendar.setTime(purchase.getDate()); year_start = calendar.get(Calendar.YEAR); month_start = calendar.get(Calendar.MONTH) + 1; day_start = calendar.get(Calendar.DAY_OF_MONTH); final Button selectDate = (Button) dialog.findViewById(R.id.select_date); selectDate.setText(new StringBuilder().append(day_start).append("/").append(month_start).append("/") .append(year_start)); selectDate.setOnClickListener(PurchaseShareFragment.this); Button addPurchaseBtn = (Button) dialog.findViewById(R.id.add_purchase_btn); addPurchaseBtn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Purchase p = new Purchase(); p.setId(purchase.getId()); String stringStartDate = year_start + " " + month_start + " " + day_start; DateFormat format = new SimpleDateFormat("yyyy MM dd", Locale.ENGLISH); try { Date date = format.parse(stringStartDate); p.setDate(date); } catch (Exception e) { Toast.makeText(getActivity(), "Invalid Date", Toast.LENGTH_SHORT).show(); return; } try { p.setQuantity(Integer.parseInt(quantity.getText().toString())); } catch (Exception e) { Toast.makeText(getActivity(), "Invalid Number of Shares", Toast.LENGTH_SHORT).show(); return; } try { p.setPrice(Double.parseDouble(price.getText().toString())); } catch (Exception e) { Toast.makeText(getActivity(), "Invalid Buying Price", Toast.LENGTH_SHORT).show(); return; } p.setType("buy"); p.setName(spinner.getSelectedItem().toString()); databaseHandler.updatePurchase(p); setRecyclerViewAdapter(); dialog.dismiss(); } }); } }); sharePurchasesRecyclerView.setHasFixedSize(true); sharePurchasesRecyclerView.setAdapter(purchaseAdapter); sharePurchasesRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity())); } @Override public void onClick(final View view) { switch (view.getId()) { case R.id.select_date: Dialog dialog = new DatePickerDialog(getActivity(), onDateSetListener, year_start, month_start - 1, day_start); dialog.setOnDismissListener(new DialogInterface.OnDismissListener() { @Override public void onDismiss(DialogInterface dialog) { ((TextView) view).setText(new StringBuilder().append(day_start).append("/").append(month_start) .append("/").append(year_start)); } }); dialog.show(); break; } } @Override public void setUserVisibleHint(boolean isVisibleToUser) { super.setUserVisibleHint(isVisibleToUser); try { if (isVisibleToUser) setRecyclerViewAdapter(); } catch (Exception e) { Log.e("visibleToUser", e.toString()); } } @Override public void onResume() { super.onResume(); try { setRecyclerViewAdapter(); } catch (Exception e) { Log.e("onResume", e.toString()); } } }