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.content.Intent; import android.graphics.drawable.ColorDrawable; import android.os.AsyncTask; import android.os.Build; import android.os.Bundle; import android.support.annotation.Nullable; import android.support.v4.app.Fragment; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import android.support.v7.widget.helper.ItemTouchHelper; import android.util.Log; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.view.Window; import android.widget.ProgressBar; import com.adithya321.sharesanalysis.R; import com.adithya321.sharesanalysis.activities.ShareHoldingsDetailActivity; import com.adithya321.sharesanalysis.adapters.ShareHoldingsAdapter; import com.adithya321.sharesanalysis.database.DatabaseHandler; import com.adithya321.sharesanalysis.database.Share; import com.adithya321.sharesanalysis.recyclerviewdrag.OnStartDragListener; import com.adithya321.sharesanalysis.recyclerviewdrag.SimpleItemTouchHelperCallback; import com.adithya321.sharesanalysis.utils.AndroidUtils; import com.adithya321.sharesanalysis.utils.StringUtils; import org.jsoup.Jsoup; import org.jsoup.nodes.Document; import java.util.List; import io.realm.Realm; public class ShareHoldingsFragment extends Fragment implements OnStartDragListener { private DatabaseHandler databaseHandler; private List<Share> sharesList; private ShareHoldingsAdapter shareHoldingsAdapter; private MenuItem actionProgressItem, actionRefreshItem; private RecyclerView shareHoldingsRecyclerView; private ItemTouchHelper mItemTouchHelper; @Override public void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setHasOptionsMenu(true); } @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { ViewGroup root = (ViewGroup) inflater.inflate(R.layout.fragment_share_holdings, container, false); Window window = getActivity().getWindow(); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) window.setStatusBarColor(getResources().getColor(R.color.blue_700)); ((AppCompatActivity) getActivity()).getSupportActionBar() .setBackgroundDrawable(new ColorDrawable(getResources().getColor(R.color.colorAccent))); databaseHandler = new DatabaseHandler(getContext()); shareHoldingsRecyclerView = (RecyclerView) root.findViewById(R.id.share_holdings_recycler_view); setRecyclerViewAdapter(); return root; } private void setRecyclerViewAdapter() { sharesList = databaseHandler.getShares(); shareHoldingsAdapter = new ShareHoldingsAdapter(getContext(), sharesList); shareHoldingsAdapter.setOnItemClickListener(new ShareHoldingsAdapter.OnItemClickListener() { @Override public void onItemClick(View itemView, int position) { Share share = sharesList.get(position); startActivity(new Intent(getActivity(), ShareHoldingsDetailActivity.class).putExtra("name", share.getName())); } }); shareHoldingsRecyclerView.setAdapter(shareHoldingsAdapter); shareHoldingsRecyclerView.setLayoutManager(new LinearLayoutManager(getContext())); shareHoldingsRecyclerView.setHasFixedSize(true); shareHoldingsRecyclerView.setAdapter(shareHoldingsAdapter); shareHoldingsRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity())); ItemTouchHelper.Callback callback = new SimpleItemTouchHelperCallback(shareHoldingsAdapter); mItemTouchHelper = new ItemTouchHelper(callback); mItemTouchHelper.attachToRecyclerView(shareHoldingsRecyclerView); if (AndroidUtils.isNetworkConnected(getContext())) new CurrentShareValue().execute(); } private class CurrentShareValue extends AsyncTask<Void, Void, Void> { private String currentShareValue; private DatabaseHandler db; private List<Share> shares; @Override protected void onPreExecute() { try { actionProgressItem.setVisible(true); actionRefreshItem.setVisible(false); } catch (Exception e) { Log.e("CurrentShareValue Pre", e.toString()); } } @Override protected Void doInBackground(Void... params) { db = new DatabaseHandler(getContext()); shares = db.getShares(); try { for (int i = 0; i < shares.size(); i++) { Share share = shares.get(i); String code = StringUtils.getCode(share.getName()); String url = "https://in.finance.yahoo.com/q?s=" + code + ".NS"; Document document = Jsoup.connect(url).followRedirects(true).get(); try { currentShareValue = document.getElementById("yfs_l84_" + code.toLowerCase() + ".ns").html(); Realm realm = db.getRealmInstance(); realm.beginTransaction(); share.setCurrentShareValue(Double.parseDouble(currentShareValue)); realm.copyToRealmOrUpdate(share); realm.commitTransaction(); } catch (Exception e) { Log.e("CurrentShareValue do1", e.toString()); } } } catch (Exception e) { Log.e("CurrentShareValue do2", e.toString()); } return null; } @Override protected void onPostExecute(Void aVoid) { try { shareHoldingsAdapter.notifyDataSetChanged(); actionProgressItem.setVisible(false); actionRefreshItem.setVisible(true); } catch (Exception e) { Log.e("CurrentShareValue Post", e.toString()); } } } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { inflater.inflate(R.menu.share_sales, menu); actionProgressItem = menu.findItem(R.id.action_progress); actionRefreshItem = menu.findItem(R.id.action_refresh); actionProgressItem.setVisible(true); actionRefreshItem.setVisible(false); ProgressBar progressBar = (ProgressBar) actionProgressItem.getActionView() .findViewById(R.id.pbProgressAction); progressBar.getIndeterminateDrawable().setColorFilter(getResources().getColor(android.R.color.white), android.graphics.PorterDuff.Mode.SRC_IN); super.onCreateOptionsMenu(menu, inflater); } @Override public boolean onOptionsItemSelected(MenuItem item) { if (item.getItemId() == R.id.action_refresh) { if (AndroidUtils.isNetworkConnected(getContext())) new CurrentShareValue().execute(); } return super.onOptionsItemSelected(item); } @Override public void onStartDrag(RecyclerView.ViewHolder viewHolder) { mItemTouchHelper.startDrag(viewHolder); } @Override public void onResume() { super.onResume(); try { setRecyclerViewAdapter(); } catch (Exception e) { Log.e("onResume", e.toString()); } } }