Default currencies and Snackbar

- Reimplemented Snackbar in case of error while refreshing and auto update if it's about exchanges' keys
- Add Euro in addition to Dollar as a default currency

app/src/main/java/com/nauk/coinfolio/Activities/CurrencyDetailsActivity.java

@@ -16,7 +16,6 @@ import android.support.v4.app.NavUtils;
 import android.support.v4.content.ContextCompat;
 import android.support.v7.app.ActionBar;
 import android.support.v7.app.AppCompatActivity;
-import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.MenuItem;
 import android.view.MotionEvent;
@@ -300,7 +299,7 @@ public class CurrencyDetailsActivity extends AppCompatActivity {
                 updateChartTab(DAY, 1);
                 break;
             case "3d":
-                currency.updateHistoryHours(this, new Currency.CurrencyCallBack() {
+                currency.updateHistoryHours(this, preferencesManager.getDefaultCurrency(), new Currency.CurrencyCallBack() {
                     @Override
                     public void onSuccess(Currency currency) {
                         runOnUiThread(new Runnable() {
@@ -313,7 +312,7 @@ public class CurrencyDetailsActivity extends AppCompatActivity {
                 });
                 break;
             case "1w":
-                currency.updateHistoryHours(this, new Currency.CurrencyCallBack() {
+                currency.updateHistoryHours(this, preferencesManager.getDefaultCurrency(), new Currency.CurrencyCallBack() {
                     @Override
                     public void onSuccess(Currency currency) {
                         runOnUiThread(new Runnable() {
@@ -326,7 +325,7 @@ public class CurrencyDetailsActivity extends AppCompatActivity {
                 });
                 break;
             case "1M":
-                currency.updateHistoryHours(this, new Currency.CurrencyCallBack() {
+                currency.updateHistoryHours(this, preferencesManager.getDefaultCurrency(), new Currency.CurrencyCallBack() {
                     @Override
                     public void onSuccess(Currency currency) {
                         runOnUiThread(new Runnable() {
@@ -339,7 +338,7 @@ public class CurrencyDetailsActivity extends AppCompatActivity {
                 });
                 break;
             case "3M":
-                currency.updateHistoryDays(this, new Currency.CurrencyCallBack() {
+                currency.updateHistoryDays(this, preferencesManager.getDefaultCurrency(), new Currency.CurrencyCallBack() {
                     @Override
                     public void onSuccess(Currency currency) {
                         runOnUiThread(new Runnable() {
@@ -352,7 +351,7 @@ public class CurrencyDetailsActivity extends AppCompatActivity {
                 });
                 break;
             case "6M":
-                currency.updateHistoryDays(this, new Currency.CurrencyCallBack() {
+                currency.updateHistoryDays(this, preferencesManager.getDefaultCurrency(), new Currency.CurrencyCallBack() {
                     @Override
                     public void onSuccess(Currency currency) {
                         runOnUiThread(new Runnable() {
@@ -365,7 +364,7 @@ public class CurrencyDetailsActivity extends AppCompatActivity {
                 });
                 break;
             case "1y":
-                currency.updateHistoryDays(this, new Currency.CurrencyCallBack() {
+                currency.updateHistoryDays(this, preferencesManager.getDefaultCurrency(), new Currency.CurrencyCallBack() {
                     @Override
                     public void onSuccess(Currency currency) {
                         runOnUiThread(new Runnable() {
@@ -550,8 +549,8 @@ public class CurrencyDetailsActivity extends AppCompatActivity {
             date = getDate(dataChartList.get(index).getTimestamp() * 1000);
         }
 
-        volumePlaceholder = getResources().getString(R.string.volumePlaceholder, numberConformer(barChart.getData().getDataSets().get(0).getEntryForIndex(index).getY()));
+        volumePlaceholder = getResources().getString(R.string.volumeDollarPlaceholder, numberConformer(barChart.getData().getDataSets().get(0).getEntryForIndex(index).getY()));
-        pricePlaceholder = getResources().getString(R.string.pricePlaceholder, numberConformer(e.getY()));
+        pricePlaceholder = getResources().getString(R.string.priceDollarPlaceholder, numberConformer(e.getY()));
         timestampPlaceholder = getResources().getString(R.string.timestampPlaceholder, date);
 
         ((TextView) findViewById(R.id.volumeHightlight)).setText(volumePlaceholder);

app/src/main/java/com/nauk/coinfolio/Activities/HomeActivity.java

@@ -121,7 +121,10 @@ public class HomeActivity extends AppCompatActivity {
         viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
             @Override
             public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
-                //bottomNavigationView.getMenu().getItem(position).setChecked(true);
+                if(!bottomNavigationView.getMenu().getItem(position).isChecked())
+                {
+                    bottomNavigationView.getMenu().getItem(position).setChecked(true);
+                }
 
                 if(position % 2 == 0)
                 {

app/src/main/java/com/nauk/coinfolio/Activities/HomeActivityFragments/MarketCapitalization.java

@@ -25,6 +25,7 @@ import com.github.mikephil.charting.data.PieEntry;
 import com.github.mikephil.charting.formatter.PercentFormatter;
 import com.nauk.coinfolio.Activities.SettingsActivity;
 import com.nauk.coinfolio.DataManagers.MarketCapManager;
+import com.nauk.coinfolio.DataManagers.PreferencesManager;
 import com.nauk.coinfolio.R;
 
 import java.text.DecimalFormat;
@@ -44,6 +45,7 @@ public class MarketCapitalization extends Fragment {
 
     private int marketCapCounter;
 
+    private PreferencesManager preferencesManager;
     private MarketCapManager marketCapManager;
     private HashMap<String, Integer> dominantCurrenciesColors;
     private SwipeRefreshLayout refreshLayout;
@@ -54,6 +56,7 @@ public class MarketCapitalization extends Fragment {
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
     {
+        preferencesManager = new PreferencesManager(getContext());
         view = inflater.inflate(R.layout.fragment_marketcap_homeactivity, container, false);
 
         setupDominantCurrenciesColors();
@@ -92,6 +95,8 @@ public class MarketCapitalization extends Fragment {
     public void onResume()
     {
         super.onResume();
+
+        updateMarketCap();
     }
 
     private void setupDominantCurrenciesColors()
@@ -141,7 +146,7 @@ public class MarketCapitalization extends Fragment {
                 public void onSuccess() {
                     countCompletedMarketCapRequest();
                 }
-            });
+            }, preferencesManager.getDefaultCurrency());
         }
         else
         {
@@ -249,8 +254,20 @@ public class MarketCapitalization extends Fragment {
         symbols.setGroupingSeparator(' ');
         formatter.setDecimalFormatSymbols(symbols);
 
-        ((TextView) view.findViewById(R.id.marketCapTextView)).setText(getActivity().getResources().getString(R.string.market_cap_textview, formatter.format(marketCapManager.getMarketCap())));
+        switch (preferencesManager.getDefaultCurrency())
-
+        {
-        ((TextView) view.findViewById(R.id.dayVolumeTotalMarketCap)).setText(getActivity().getResources().getString(R.string.volume_market_cap_textview, formatter.format(marketCapManager.getDayVolume())));
+            case "EUR":
+                ((TextView) view.findViewById(R.id.marketCapTextView))
+                        .setText(getActivity().getResources().getString(R.string.market_cap_euros_textview, formatter.format(marketCapManager.getMarketCap())));
+                ((TextView) view.findViewById(R.id.dayVolumeTotalMarketCap))
+                        .setText(getActivity().getResources().getString(R.string.volume_euros_market_cap_textview, formatter.format(marketCapManager.getDayVolume())));
+                break;
+            default:
+                ((TextView) view.findViewById(R.id.marketCapTextView))
+                        .setText(getActivity().getResources().getString(R.string.market_cap_dollar_textview, formatter.format(marketCapManager.getMarketCap())));
+                ((TextView) view.findViewById(R.id.dayVolumeTotalMarketCap))
+                        .setText(getActivity().getResources().getString(R.string.volume_dollar_market_cap_textview, formatter.format(marketCapManager.getDayVolume())));
+                break;
+        }
     }
 }

app/src/main/java/com/nauk/coinfolio/Activities/HomeActivityFragments/Summary.java

@@ -8,7 +8,9 @@ import android.graphics.Color;
 import android.os.AsyncTask;
 import android.os.Handler;
 import android.os.Looper;
+import android.support.annotation.NonNull;
 import android.support.design.widget.CollapsingToolbarLayout;
+import android.support.design.widget.Snackbar;
 import android.support.v4.app.Fragment;
 import android.os.Bundle;
 import android.support.v4.widget.SwipeRefreshLayout;
@@ -50,7 +52,6 @@ public class Summary extends Fragment {
     private PreferencesManager preferencesManager;
     private BalanceManager balanceManager;
     private HomeLayoutGenerator layoutGenerator;
-    private View view;
     private SwipeRefreshLayout refreshLayout;
     private Dialog loadingDialog;
 
@@ -67,17 +68,18 @@ public class Summary extends Fragment {
     protected float totalFluctuation;
     private long lastTimestamp;
 
+    @NonNull
     @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
+    public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
     {
-        view = inflater.inflate(R.layout.fragment_summary_homeactivity, container, false);
+        View fragmentView = inflater.inflate(R.layout.fragment_summary_homeactivity, container, false);
 
-        currencyLayout = view.findViewById(R.id.currencyListLayout);
+        currencyLayout = fragmentView.findViewById(R.id.currencyListLayout);
         preferencesManager = new PreferencesManager(getActivity());
         balanceManager = new BalanceManager(getActivity());
         layoutGenerator = new HomeLayoutGenerator(getActivity());
-        refreshLayout = view.findViewById(R.id.swiperefreshsummary);
+        refreshLayout = fragmentView.findViewById(R.id.swiperefreshsummary);
-        toolbarSubtitle = view.findViewById(R.id.toolbarSubtitle);
+        toolbarSubtitle = fragmentView.findViewById(R.id.toolbarSubtitle);
 
         totalValue = 0;
         totalFluctuation = 0;
@@ -114,12 +116,12 @@ public class Summary extends Fragment {
         );
 
         handler.postDelayed(updateRunnable, 10000);
-        toolbarLayout = view.findViewById(R.id.toolbar_layout);
+        toolbarLayout = fragmentView.findViewById(R.id.toolbar_layout);
         toolbarLayout.setForegroundGravity(Gravity.CENTER);
 
-        Button addCurrencyButton = view.findViewById(R.id.buttonAddTransaction);
+        Button addCurrencyButton = fragmentView.findViewById(R.id.buttonAddTransaction);
 
-        ImageButton settingsButton = view.findViewById(R.id.settings_button);
+        ImageButton settingsButton = fragmentView.findViewById(R.id.settings_button);
 
         settingsButton.setOnClickListener(new View.OnClickListener() {
             @Override
@@ -142,7 +144,7 @@ public class Summary extends Fragment {
 
         generateSplashScreen();
 
-        return view;
+        return fragmentView;
     }
 
     private void generateSplashScreen()
@@ -176,9 +178,9 @@ public class Summary extends Fragment {
     public void onResume() {
         super.onResume();
 
-        updateAll(preferencesManager.mustUpdateSummary());
-
         displayBalance(preferencesManager.isBalanceHidden());
+
+        updateAll(preferencesManager.mustUpdateSummary());
     }
 
     private void updateAll(boolean mustUpdate)
@@ -197,7 +199,6 @@ public class Summary extends Fragment {
             resetCounters();
             DataUpdater updater = new DataUpdater();
             updater.execute();
-
         }
         else
         {
@@ -236,7 +237,7 @@ public class Summary extends Fragment {
 
         final List<View> currencyView = new ArrayList<>();
 
-        Runnable newRunnabmle = new Runnable() {
+        Runnable newRunnable = new Runnable() {
             @Override
             public void run() {
                 for(int i = 0; i < balanceManager.getTotalBalance().size(); i++)
@@ -261,7 +262,7 @@ public class Summary extends Fragment {
             }
         };
 
-        newRunnabmle.run();
+        newRunnable.run();
     }
 
     private void countCoins(boolean isCoin, boolean isDetails)
@@ -293,7 +294,6 @@ public class Summary extends Fragment {
         }
     }
 
-
     private void countIcons()
     {
         int offset = 0;
@@ -351,8 +351,6 @@ public class Summary extends Fragment {
     {
         float totalFluctuationPercentage = totalFluctuation / (totalValue - totalFluctuation) * 100;
 
-
-
         if(preferencesManager.isBalanceHidden())
         {
             toolbarLayout.setTitle(getResources().getString(R.string.currencyPercentagePlaceholder, String.format("%.2f", totalFluctuationPercentage)));
@@ -371,7 +369,15 @@ public class Summary extends Fragment {
         }
         else
         {
-            toolbarLayout.setTitle(getResources().getString(R.string.currencyDollarPlaceholder, String.format("%.2f", totalValue)));
+            switch (preferencesManager.getDefaultCurrency())
+            {
+                case "EUR":
+                    toolbarLayout.setTitle(getResources().getString(R.string.currencyEurosPlaceholder, String.format("%.2f", totalValue)));
+                    break;
+                default:
+                    toolbarLayout.setTitle(getResources().getString(R.string.currencyDollarPlaceholder, String.format("%.2f", totalValue)));
+                    break;
+            }
             toolbarLayout.setCollapsedTitleTextColor(Color.WHITE);
             toolbarLayout.setExpandedTitleColor(Color.WHITE);
 
@@ -388,13 +394,29 @@ public class Summary extends Fragment {
 
             if(totalFluctuation == 0)
             {
-                toolbarSubtitle.setText(getResources().getString(R.string.currencyDollarPlaceholder, "0.00"));
+                switch (preferencesManager.getDefaultCurrency())
+                {
+                    case "EUR":
+                        toolbarSubtitle.setText(getResources().getString(R.string.currencyEurosPlaceholder, "0.00"));
+                        break;
+                    default:
+                        toolbarSubtitle.setText(getResources().getString(R.string.currencyDollarPlaceholder, "0.00"));
+                        break;
+                }
                 toolbarSubtitle.setTextColor(-1275068417);
 
             }
             else
             {
-                toolbarSubtitle.setText("US$" + String.format("%.2f", totalFluctuation) + " (" + String.format("%.2f", totalFluctuationPercentage) + "%)");
+                switch (preferencesManager.getDefaultCurrency())
+                {
+                    case "EUR":
+                        toolbarSubtitle.setText(String.format("%.2f", totalFluctuation) + "€ (" + String.format("%.2f", totalFluctuationPercentage) + "%)");
+                        break;
+                    default:
+                        toolbarSubtitle.setText("US$" + String.format("%.2f", totalFluctuation) + " (" + String.format("%.2f", totalFluctuationPercentage) + "%)");
+                        break;
+                }
             }
         }
     }
@@ -600,7 +622,7 @@ public class Summary extends Fragment {
                     {
                         for(int i = 0; i < balanceManager.getTotalBalance().size(); i++)
                         {
-                            balance.get(i).updatePrice(getActivity(), new Currency.CurrencyCallBack() {
+                            balance.get(i).updatePrice(getActivity(), preferencesManager.getDefaultCurrency(), new Currency.CurrencyCallBack() {
                                 @Override
                                 public void onSuccess(Currency currency) {
                                     countCoins(true, false);
@@ -622,27 +644,34 @@ public class Summary extends Fragment {
 
                 public void onError(String error)
                 {
-                    /*switch (error)
+                    View view = getActivity().findViewById(R.id.snackbar_placer);
+
+                    switch (error)
                     {
                         case "com.android.volley.AuthFailureError":
                             preferencesManager.disableHitBTC();
-                            Snackbar.make(findViewById(R.id.viewFlipperSummary), "HitBTC synchronization error : Invalid keys", Snackbar.LENGTH_LONG)
+                            Snackbar.make(view, "HitBTC synchronization error : Invalid keys", Snackbar.LENGTH_LONG)
                                     .show();
+
                             refreshLayout.setRefreshing(false);
+
                             updateAll(true);
                             break;
                         case "API-key format invalid.":
                             preferencesManager.disableBinance();
-                            Snackbar.make(findViewById(R.id.viewFlipperSummary), "Binance synchronization error : Invalid keys", Snackbar.LENGTH_LONG)
+                            Snackbar.make(view, "Binance synchronization error : Invalid keys", Snackbar.LENGTH_LONG)
                                     .show();
+
                             updateAll(true);
                             break;
                         default:
-                            Snackbar.make(findViewById(R.id.viewFlipperSummary), "Unexpected error", Snackbar.LENGTH_LONG)
+                            Snackbar.make(view, "Unexpected error", Snackbar.LENGTH_LONG)
                                     .show();
+
                             Log.d("coinfolio", error);
+
                             updateAll(true);
-                    }*/
+                    }
                 }
             });
 

app/src/main/java/com/nauk/coinfolio/Activities/HomeActivityFragments/Watchlist.java

@@ -237,64 +237,7 @@ public class Watchlist extends Fragment {
                 public void run() {
                     for(final Currency currency : watchlistManager.getWatchlist())
                     {
-                        View card = LayoutInflater.from(getContext()).inflate(R.layout.cardview_watchlist, null);
+                        watchlistViews.add(getCurrencyCardFor(currency));
-
-                        ((TextView) card.findViewById(R.id.currencyFluctuationPercentageTextView)).setText(getResources().getString(R.string.currencyPercentagePlaceholder, numberConformer(currency.getDayFluctuationPercentage())));
-                        ((TextView) card.findViewById(R.id.currencyFluctuationTextView)).setText(getResources().getString(R.string.currencyDollarParenthesisPlaceholder, numberConformer(currency.getDayFluctuation())));
-                        ((TextView) card.findViewById(R.id.currencyNameTextView)).setText(currency.getName());
-                        ((TextView) card.findViewById(R.id.currencySymbolTextView)).setText(getResources().getString(R.string.currencySymbolPlaceholder, currency.getSymbol()));
-                        ((ImageView) card.findViewById(R.id.currencyIcon)).setImageBitmap(currency.getIcon());
-                        ((TextView) card.findViewById(R.id.currencyValueTextView)).setText(getResources().getString(R.string.currencyDollarPlaceholder, numberConformer(currency.getValue())));
-
-                        Drawable arrowDrawable = ((ImageView) card.findViewById(R.id.detailsArrow)).getDrawable();
-                        arrowDrawable.mutate();
-                        arrowDrawable.setColorFilter(new PorterDuffColorFilter(currency.getChartColor(), PorterDuff.Mode.SRC_IN));
-                        arrowDrawable.invalidateSelf();
-
-                        updateColor(card, currency);
-
-                        card.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
-                        card.setOnClickListener(new View.OnClickListener() {
-                            @Override
-                            public void onClick(final View view) {
-                                if(view.findViewById(R.id.collapsableLayout).getVisibility() == View.VISIBLE)
-                                {
-                                    collapseView(view);
-                                }
-                                else
-                                {
-                                    if (currency.getHistoryMinutes() == null) {
-                                        currency.updateHistoryMinutes(getActivity(), new Currency.CurrencyCallBack() {
-                                            @Override
-                                            public void onSuccess(Currency currency) {
-                                                extendView(view);
-                                                setupLineChart(view, currency);
-                                            }
-                                        });
-                                    }
-                                    else
-                                    {
-                                        extendView(view);
-                                    }
-                                }
-                            }
-                        });
-
-                        card.findViewById(R.id.LineChartView).setOnClickListener(new View.OnClickListener() {
-                            @Override
-                            public void onClick(View view) {
-                                Intent intent = new Intent(getActivity(), CurrencyDetailsActivity.class);
-                                intent.putExtra("currency", currency);
-                                getActivity().getApplicationContext().startActivity(intent);
-                            }
-                        });
-
-                        if(currency.getHistoryMinutes() != null)
-                        {
-                            setupLineChart(card, currency);
-                        }
-
-                        watchlistViews.add(card);
                     }
 
                     getActivity().runOnUiThread(new Runnable() {
@@ -317,6 +260,86 @@ public class Watchlist extends Fragment {
             }
         }
     }
+
+    private View getCurrencyCardFor(final Currency currency)
+    {
+        View card = LayoutInflater.from(getContext()).inflate(R.layout.cardview_watchlist, null);
+
+        switch (preferencesManager.getDefaultCurrency())
+        {
+            case "EUR":
+                ((TextView) card.findViewById(R.id.currencyFluctuationTextView))
+                        .setText(getResources().getString(R.string.currencyEurosParenthesisPlaceholder, numberConformer(currency.getDayFluctuation())));
+                ((TextView) card.findViewById(R.id.currencyValueTextView))
+                        .setText(getResources().getString(R.string.currencyEurosPlaceholder, numberConformer(currency.getValue())));
+                break;
+            default :
+                ((TextView) card.findViewById(R.id.currencyFluctuationTextView))
+                        .setText(getResources().getString(R.string.currencyDollarParenthesisPlaceholder, numberConformer(currency.getDayFluctuation())));
+                ((TextView) card.findViewById(R.id.currencyValueTextView))
+                        .setText(getResources().getString(R.string.currencyDollarPlaceholder, numberConformer(currency.getValue())));
+                break;
+        }
+
+        ((TextView) card.findViewById(R.id.currencyFluctuationPercentageTextView))
+                .setText(getResources().getString(R.string.currencyPercentagePlaceholder, numberConformer(currency.getDayFluctuationPercentage())));
+        ((TextView) card.findViewById(R.id.currencyNameTextView))
+                .setText(currency.getName());
+        ((TextView) card.findViewById(R.id.currencySymbolTextView))
+                .setText(getResources().getString(R.string.currencySymbolPlaceholder, currency.getSymbol()));
+        ((ImageView) card.findViewById(R.id.currencyIcon)).setImageBitmap(currency.getIcon());
+
+        Drawable arrowDrawable = ((ImageView) card.findViewById(R.id.detailsArrow)).getDrawable();
+        arrowDrawable.mutate();
+        arrowDrawable.setColorFilter(new PorterDuffColorFilter(currency.getChartColor(), PorterDuff.Mode.SRC_IN));
+        arrowDrawable.invalidateSelf();
+
+        updateColor(card, currency);
+
+        card.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
+        card.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(final View view) {
+                if(view.findViewById(R.id.collapsableLayout).getVisibility() == View.VISIBLE)
+                {
+                    collapseView(view);
+                }
+                else
+                {
+                    if (currency.getHistoryMinutes() == null) {
+                        currency.updateHistoryMinutes(getActivity(), preferencesManager.getDefaultCurrency(), new Currency.CurrencyCallBack() {
+                            @Override
+                            public void onSuccess(Currency currency) {
+                                extendView(view);
+                                setupLineChart(view, currency);
+                            }
+                        });
+                    }
+                    else
+                    {
+                        extendView(view);
+                    }
+                }
+            }
+        });
+
+        card.findViewById(R.id.LineChartView).setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Intent intent = new Intent(getActivity(), CurrencyDetailsActivity.class);
+                intent.putExtra("currency", currency);
+                getActivity().getApplicationContext().startActivity(intent);
+            }
+        });
+
+        if(currency.getHistoryMinutes() != null)
+        {
+            setupLineChart(card, currency);
+        }
+
+        return card;
+    }
+
     private LineData generateData(Currency currency)
     {
         LineDataSet dataSet;
@@ -456,7 +479,7 @@ public class Watchlist extends Fragment {
         protected Void doInBackground(Void... voids) {
             for(final Currency currency : watchlistManager.getWatchlist())
             {
-                currency.updatePrice(getActivity(), new Currency.CurrencyCallBack() {
+                currency.updatePrice(getActivity(), preferencesManager.getDefaultCurrency(), new Currency.CurrencyCallBack() {
                     @Override
                     public void onSuccess(final Currency sucessCurrency) {
                         if(getIconUrl(sucessCurrency.getSymbol()) != null)

app/src/main/java/com/nauk/coinfolio/Activities/RecordTransactionActivity.java

@@ -80,7 +80,7 @@ public class RecordTransactionActivity extends AppCompatActivity {
             }
         });
 
-        currency.getTimestampPrice(this, new Currency.PriceCallBack() {
+        currency.getTimestampPrice(this, preferenceManager.getDefaultCurrency(), new Currency.PriceCallBack() {
             @Override
             public void onSuccess(String price) {
                 purchasedPrice.setText(price);
@@ -119,7 +119,7 @@ public class RecordTransactionActivity extends AppCompatActivity {
                         calendar.set(Calendar.MINUTE, minute);
                         purchasedDate.setText(sdf.format(calendar.getTime()));
 
-                        currency.getTimestampPrice(RecordTransactionActivity.this, new Currency.PriceCallBack() {
+                        currency.getTimestampPrice(RecordTransactionActivity.this, preferenceManager.getDefaultCurrency(), new Currency.PriceCallBack() {
                             @Override
                             public void onSuccess(String price) {
                                 purchasedPrice.setText(price);

app/src/main/java/com/nauk/coinfolio/Activities/SettingsActivity.java

@@ -31,6 +31,7 @@ import android.util.Log;
 import android.view.MenuItem;
 import android.view.View;
 
+import com.nauk.coinfolio.DataManagers.PreferencesManager;
 import com.nauk.coinfolio.FingerprintToolkit.FingerprintDialogFragment;
 import com.nauk.coinfolio.FingerprintToolkit.FingerprintHandler;
 import com.nauk.coinfolio.R;
@@ -230,6 +231,20 @@ public class SettingsActivity extends AppCompatPreferenceActivity {
                     return isChecked;
                 }
             });
+
+            bindPreferenceSummaryToValue(findPreference("default_currency"));
+            findPreference("default_currency").setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
+                @Override
+                public boolean onPreferenceChange(Preference preference, Object o) {
+                    SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getContext());
+                    SharedPreferences.Editor editor = preferences.edit();
+
+                    editor.putBoolean("refresh_default_currency", true);
+                    editor.apply();
+
+                    return false;
+                }
+            });
         }
 
         @Override

app/src/main/java/com/nauk/coinfolio/DataManagers/BalanceManager.java

@@ -96,7 +96,7 @@ public class BalanceManager {
 
         hitBtcManagers.clear();
 
-        if(publicKey != null && privateKey != null && preferenceManager.isHitBTCActivated())
+        if(preferenceManager.isHitBTCActivated() && publicKey != null && privateKey != null)
         {
             hitBtcManagers.add(new HitBtcManager(context, publicKey, privateKey));
         }
@@ -106,7 +106,7 @@ public class BalanceManager {
 
         binanceManagers.clear();
 
-        if(publicKey != null && privateKey != null && preferenceManager.isBinanceActivated())
+        if(preferenceManager.isBinanceActivated() && publicKey != null && privateKey != null)
         {
             binanceManagers.add(new BinanceManager(publicKey, privateKey));
         }
@@ -121,6 +121,8 @@ public class BalanceManager {
     {
         boolean isUpdated = false;
         
+        balanceCounter = 0;
+
         manualBalances = databaseManager.getAllCurrenciesFromManualCurrency();
 
         if(binanceManagers.size() > 0)

app/src/main/java/com/nauk/coinfolio/DataManagers/CurrencyData/Currency.java

@@ -64,11 +64,11 @@ public class Currency implements Parcelable {
 
     //public Currency(int id, String symbol, String name, String algorithm, String proofType, )
 
-    public void getTimestampPrice(android.content.Context context, final PriceCallBack callBack, long timestamp)
+    public void getTimestampPrice(android.content.Context context, String toSymbol, final PriceCallBack callBack, long timestamp)
     {
         dataRetriver = new CurrencyDataRetriever(context);
 
-        dataRetriver.getPriceTimestamp(symbol, new CurrencyDataRetriever.DataChartCallBack() {
+        dataRetriver.getPriceTimestamp(symbol, toSymbol, new CurrencyDataRetriever.DataChartCallBack() {
             @Override
             public void onSuccess(List<CurrencyDataChart> dataChart) {}
 
@@ -97,11 +97,11 @@ public class Currency implements Parcelable {
         return url;
     }
 
-    public void updatePrice(android.content.Context context, final CurrencyCallBack callBack)
+    public void updatePrice(android.content.Context context, String toSymbol, final CurrencyCallBack callBack)
     {
         dataRetriver = new CurrencyDataRetriever(context);
 
-        dataRetriver.updatePrice(symbol, new CurrencyDataRetriever.PriceCallBack() {
+        dataRetriver.updatePrice(symbol, toSymbol, new CurrencyDataRetriever.PriceCallBack() {
             @Override
             public void onSuccess(Currency currencyInfo) {
                 if(currencyInfo != null)
@@ -117,11 +117,11 @@ public class Currency implements Parcelable {
         });
     }
 
-    public void updateHistoryMinutes(android.content.Context context, final CurrencyCallBack callBack)
+    public void updateHistoryMinutes(android.content.Context context, String toSymbol, final CurrencyCallBack callBack)
     {
         dataRetriver = new CurrencyDataRetriever(context);
 
-        dataRetriver.updateHistory(symbol, new CurrencyDataRetriever.DataChartCallBack() {
+        dataRetriver.updateHistory(symbol, toSymbol, new CurrencyDataRetriever.DataChartCallBack() {
             @Override
             public void onSuccess(List<CurrencyDataChart> dataChart) {
                 setHistoryMinutes(dataChart);
@@ -134,10 +134,10 @@ public class Currency implements Parcelable {
         }, CurrencyDataRetriever.MINUTES);
     }
 
-    public void updateHistoryHours(android.content.Context context, final CurrencyCallBack callBack)
+    public void updateHistoryHours(android.content.Context context, String toSymbol, final CurrencyCallBack callBack)
     {
         dataRetriver = new CurrencyDataRetriever(context);
-        dataRetriver.updateHistory(symbol, new CurrencyDataRetriever.DataChartCallBack() {
+        dataRetriver.updateHistory(symbol, toSymbol, new CurrencyDataRetriever.DataChartCallBack() {
             @Override
             public void onSuccess(List<CurrencyDataChart> dataChart) {
                 setHistoryHours(dataChart);
@@ -150,10 +150,10 @@ public class Currency implements Parcelable {
         }, CurrencyDataRetriever.HOURS);
     }
 
-    public void updateHistoryDays(android.content.Context context, final CurrencyCallBack callBack)
+    public void updateHistoryDays(android.content.Context context, String toSymbol, final CurrencyCallBack callBack)
     {
         dataRetriver = new CurrencyDataRetriever(context);
-        dataRetriver.updateHistory(symbol, new CurrencyDataRetriever.DataChartCallBack() {
+        dataRetriver.updateHistory(symbol, toSymbol, new CurrencyDataRetriever.DataChartCallBack() {
             @Override
             public void onSuccess(List<CurrencyDataChart> dataChart) {
                 setHistoryDays(dataChart);

app/src/main/java/com/nauk/coinfolio/DataManagers/CurrencyData/CurrencyDataRetriever.java

@@ -44,7 +44,7 @@ public class CurrencyDataRetriever {
         requestQueue = Volley.newRequestQueue(context);
     }
 
-    private void getPriceTimestamp(final String symbolCurrencyFrom, String symbolCurrencyTo, final DataChartCallBack callBack, long timestamp)
+    public void getPriceTimestamp(final String symbolCurrencyFrom, String symbolCurrencyTo, final DataChartCallBack callBack, long timestamp)
     {
         final String requestUrl = "https://min-api.cryptocompare.com/data/pricehistorical?fsym=" + symbolCurrencyFrom + "&tsyms=" + symbolCurrencyTo + "&ts=" + timestamp;
 
@@ -74,7 +74,7 @@ public class CurrencyDataRetriever {
         return result;
     }
 
-    private void updateHistory(final String symbolCurrencyFrom, String symbolCyrrencyTo, final DataChartCallBack callBack, int timeUnit)
+    public void updateHistory(final String symbolCurrencyFrom, String symbolCyrrencyTo, final DataChartCallBack callBack, int timeUnit)
     {
         String requestUrl = getRequestUrl(timeUnit, symbolCurrencyFrom, symbolCyrrencyTo);
 
@@ -95,7 +95,7 @@ public class CurrencyDataRetriever {
         requestQueue.add(stringRequest);
     }
 
-    private void updatePrice(final String symbolCurrencyFrom, String symbolCurrencyTo, final PriceCallBack callBack)
+    public void updatePrice(final String symbolCurrencyFrom, String symbolCurrencyTo, final PriceCallBack callBack)
     {
         String requestUrl = priceUrl + symbolCurrencyFrom + "&tsyms=" + symbolCurrencyTo;
 

app/src/main/java/com/nauk/coinfolio/DataManagers/DatabaseManager.java

@@ -145,7 +145,6 @@ public class DatabaseManager extends SQLiteOpenHelper{
         while(resultatList.moveToNext())
         {
             currencyList.add(new Currency(resultatList.getString(1), resultatList.getDouble(3)));
-            Log.d("coinfolio", "Database output : " + resultatList.getString(1));
         }
 
         resultatList.close();

app/src/main/java/com/nauk/coinfolio/DataManagers/MarketCapManager.java

@@ -23,7 +23,7 @@ import java.util.regex.Pattern;
 public class MarketCapManager {
 
     private static final String topCurrenciesUrl = "https://api.coinmarketcap.com/v1/ticker/?limit=9";
-    private static final String marketCapUrl = "https://api.coinmarketcap.com/v1/global/";
+    private static final String marketCapUrl = "https://api.coinmarketcap.com/v1/global/?convert=";
     private RequestQueue requestQueue;
     private String topRequestResult[];
     private long marketCap;
@@ -57,9 +57,11 @@ public class MarketCapManager {
         requestQueue.add(strRequest);
     }
 
-    public void updateMarketCap(final VolleyCallBack callBack)
+    public void updateMarketCap(final VolleyCallBack callBack, String toSymbol)
     {
-        StringRequest strRequest = new StringRequest(Request.Method.GET, marketCapUrl,
+        String requestString = marketCapUrl + toSymbol;
+
+        StringRequest strRequest = new StringRequest(Request.Method.GET, requestString,
                 new Response.Listener<String>() {
                     @Override
                     public void onResponse(String response) {

app/src/main/java/com/nauk/coinfolio/DataManagers/PreferencesManager.java

@@ -34,6 +34,18 @@ public class PreferencesManager {
         return preferencesList.getBoolean("DetailOption", true);
     }
 
+    public void disableRefreshDefaultCurrency()
+    {
+        SharedPreferences.Editor editor = settingPreferences.edit();
+        editor.putBoolean("refresh_default_currency", false);
+        editor.apply();
+    }
+
+    public String getDefaultCurrency()
+    {
+        return settingPreferences.getString("default_currency", "USD");
+    }
+
     public String getHitBTCPublicKey()
     {
         return settingPreferences.getString("hitbtc_publickey", null);

app/src/main/java/com/nauk/coinfolio/LayoutManagers/HomeLayoutGenerator.java

@@ -7,6 +7,7 @@ import android.graphics.PorterDuff;
 import android.graphics.PorterDuffColorFilter;
 import android.graphics.drawable.Drawable;
 import android.os.AsyncTask;
+import android.preference.PreferenceScreen;
 import android.support.v7.widget.CardView;
 import android.util.Log;
 import android.view.LayoutInflater;
@@ -24,6 +25,7 @@ import com.github.mikephil.charting.data.LineDataSet;
 import com.nauk.coinfolio.Activities.CurrencyDetailsActivity;
 import com.nauk.coinfolio.DataManagers.CurrencyData.Currency;
 import com.nauk.coinfolio.DataManagers.CurrencyData.CurrencyDataChart;
+import com.nauk.coinfolio.DataManagers.PreferencesManager;
 import com.nauk.coinfolio.R;
 
 import java.text.DecimalFormat;
@@ -53,11 +55,13 @@ public class HomeLayoutGenerator {
         view.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(final View view) {
+                PreferencesManager preferencesManager = new PreferencesManager(context);
+
                 if (view.findViewById(R.id.collapsableLayout).getVisibility() == View.VISIBLE) {
                     collapseView(view);
                 } else {
                     if (currency.getHistoryMinutes() == null) {
-                        currency.updateHistoryMinutes(context, new Currency.CurrencyCallBack() {
+                        currency.updateHistoryMinutes(context, preferencesManager.getDefaultCurrency(), new Currency.CurrencyCallBack() {
                             @Override
                             public void onSuccess(Currency currency) {
                                 //setupLineChart(view, currency);
@@ -202,6 +206,28 @@ public class HomeLayoutGenerator {
         double value = currency.getValue() * currency.getBalance();
         double percentage = value / totalValue * 100;
         DecimalFormat df = new DecimalFormat(".##");
+        PreferencesManager preferencesManager = new PreferencesManager(context);
+
+        switch (preferencesManager.getDefaultCurrency())
+        {
+            case "EUR":
+                ((TextView) view.findViewById(R.id.currencyValueOwnedTextView))
+                        .setText(context.getResources().getString(R.string.currencyEurosParenthesisPlaceholder, numberConformer(currency.getValue() * currency.getBalance())));
+                ((TextView) view.findViewById(R.id.currencyValueTextView))
+                        .setText(context.getResources().getString(R.string.currencyEurosPlaceholder, numberConformer(currency.getValue())));
+                ((TextView) view.findViewById(R.id.currencyFluctuationTextView))
+                        .setText(context.getResources().getString(R.string.currencyEurosParenthesisPlaceholder, numberConformer(currency.getDayFluctuation())));
+                break;
+            default:
+                ((TextView) view.findViewById(R.id.currencyValueOwnedTextView))
+                        .setText(context.getResources().getString(R.string.currencyDollarParenthesisPlaceholder, numberConformer(currency.getValue() * currency.getBalance())));
+                ((TextView) view.findViewById(R.id.currencyValueTextView))
+                        .setText(context.getResources().getString(R.string.currencyDollarPlaceholder, numberConformer(currency.getValue())));
+                ((TextView) view.findViewById(R.id.currencyFluctuationTextView))
+                        .setText(context.getResources().getString(R.string.currencyDollarParenthesisPlaceholder, numberConformer(currency.getDayFluctuation())));
+
+                break;
+        }
 
         ((ImageView) view.findViewById(R.id.currencyIcon))
                 .setImageBitmap(currency.getIcon());
@@ -211,15 +237,8 @@ public class HomeLayoutGenerator {
                 .setText(context.getResources().getString(R.string.currencySymbolPlaceholder, currency.getSymbol()));
         ((TextView) view.findViewById(R.id.currencyOwnedTextView))
                 .setText(context.getResources().getString(R.string.currencyBalancePlaceholder, numberConformer(currency.getBalance()), currency.getSymbol()));
-        ((TextView) view.findViewById(R.id.currencyValueOwnedTextView))
-                .setText(context.getResources().getString(R.string.currencyDollarParenthesisPlaceholder, numberConformer(currency.getValue() * currency.getBalance())));
-
-        ((TextView) view.findViewById(R.id.currencyValueTextView))
-                .setText(context.getResources().getString(R.string.currencyDollarPlaceholder, numberConformer(currency.getValue())));
         ((TextView) view.findViewById(R.id.currencyFluctuationPercentageTextView))
                 .setText(context.getResources().getString(R.string.currencyPercentagePlaceholder, numberConformer(currency.getDayFluctuationPercentage())));
-        ((TextView) view.findViewById(R.id.currencyFluctuationTextView))
-                .setText(context.getResources().getString(R.string.currencyDollarParenthesisPlaceholder, numberConformer(currency.getDayFluctuation())));
 
         Drawable arrowDrawable = ((ImageView) view.findViewById(R.id.detailsArrow)).getDrawable();
         arrowDrawable.mutate();

app/src/main/res/layout/activity_currency_summary.xml

@@ -13,8 +13,14 @@
         android:layout_height="match_parent"
         app:layout_behavior="@string/appbar_scrolling_view_behavior"
         android:layout_marginBottom="56dp"
+        android:orientation="vertical"
         android:background="@color/summary_background">
 
+        <android.support.design.widget.CoordinatorLayout
+            android:id="@+id/snackbar_placer"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"/>
+
         <android.support.v4.view.ViewPager
             android:id="@+id/viewPager"
             android:layout_width="match_parent"

app/src/main/res/values/strings.xml

@@ -32,22 +32,19 @@
     <!-- Example settings for Data & Sync -->
     <string name="pref_header_data_sync">Data &amp; sync</string>
 
-    <string name="pref_title_sync_frequency">Sync frequency</string>
+    <string name="pref_title_default_currency">Default currency</string>
-    <string-array name="pref_sync_frequency_titles">
+    <string-array name="pref_default_currencies_titles">
-        <item>15 minutes</item>
+        <item>USD</item>
-        <item>30 minutes</item>
+        <item>EUR</item>
-        <item>1 hour</item>
+        <item>BTC</item>
-        <item>3 hours</item>
+        <item>ETH</item>
-        <item>6 hours</item>
-        <item>Never</item>
     </string-array>
-    <string-array name="pref_sync_frequency_values">
+
-        <item>15</item>
+    <string-array name="pref_default_currencies_values">
-        <item>30</item>
+        <item>USD</item>
-        <item>60</item>
+        <item>EUR</item>
-        <item>180</item>
+        <item>BTC</item>
-        <item>360</item>
+        <item>ETH</item>
-        <item>-1</item>
     </string-array>
 
     <string-array name="list_preference_entries">
@@ -142,12 +139,17 @@
     <string name="currencyBalancePlaceholder">%1$s%2$s</string>
     <string name="currencyDollarParenthesisPlaceholder">(US$%1$s)</string>
     <string name="currencyDollarPlaceholder">US$%1$s</string>
+    <string name="currencyEurosParenthesisPlaceholder">(%1$s€)</string>
+    <string name="currencyEurosPlaceholder">%1$s€</string>
     <string name="currencyPercentagePlaceholder">%1$s%%</string>
     <string name="fluctuationDollarPercentagePlaceholder">US$%1$s (%2$s%)</string>
+    <string name="fluctuationEurosPercentagePlaceholder">%1$s€ (%2$s%)</string>
 
     <!--DetailsActivity placeholders-->
-    <string name="volumePlaceholder">Volume\nUS$%1$s</string>
+    <string name="volumeDollarPlaceholder">Volume\nUS$%1$s</string>
-    <string name="pricePlaceholder">Price\nUS$%1$s</string>
+    <string name="priceDollarPlaceholder">Price\nUS$%1$s</string>
+    <string name="volumeEurosPlaceholder">Volume\n%1$s€</string>
+    <string name="priceEurosPlaceholder">Price\n%1$s€</string>
     <string name="timestampPlaceholder">Date\n%1$s</string>
 
     <string name="title_activity_main">MainActivity</string>
@@ -156,8 +158,10 @@
     <string name="fingerprint_dialog_title">Verify your fingerprint to continue</string>
 
 
-    <string name="market_cap_textview">Total Market Capitalization :\nUS$%1$s</string>
+    <string name="market_cap_dollar_textview">Total Market Capitalization :\nUS$%1$s</string>
-    <string name="volume_market_cap_textview">24h volume :\nUS$%1$s</string>
+    <string name="volume_dollar_market_cap_textview">24h volume :\nUS$%1$s</string>
+    <string name="market_cap_euros_textview">Total Market Capitalization :\n%1$s€</string>
+    <string name="volume_euros_market_cap_textview">24h volume :\n%1$s€</string>
     <string name="title_activity_scrolling">ScrollingActivity</string>
 
 </resources>

app/src/main/res/xml/pref_data_sync.xml

@@ -3,14 +3,14 @@
     <!-- NOTE: Hide buttons to simplify the UI. Users can touch outside the dialog to
          dismiss it. -->
     <!-- NOTE: ListPreference's summary should be set to its value by the activity code. -->
-    <ListPreference
+    <!--<ListPreference
         android:defaultValue="180"
-        android:entries="@array/pref_sync_frequency_titles"
+    android:entries="@array/pref_sync_frequency_titles"
-        android:entryValues="@array/pref_sync_frequency_values"
+    android:entryValues="@array/pref_sync_frequency_values"
-        android:key="sync_frequency"
+    android:key="sync_frequency"
-        android:negativeButtonText="@null"
+    android:negativeButtonText="@null"
-        android:positiveButtonText="@null"
+    android:positiveButtonText="@null"
-        android:title="@string/pref_title_sync_frequency" />
+    android:title="@string/pref_title_sync_frequency" />-->
 
     <!-- This preference simply launches an intent when selected. Use this UI sparingly, per
          design guidelines. -->

app/src/main/res/xml/pref_general.xml

@@ -5,6 +5,16 @@
         android:key="hide_balance"
         android:title="@string/pref_title_hide_balance" />
 
+    <ListPreference
+        android:defaultValue="USD"
+        android:entries="@array/pref_default_currencies_titles"
+        android:entryValues="@array/pref_default_currencies_values"
+        android:key="default_currency"
+        android:negativeButtonText="@null"
+        android:positiveButtonText="@null"
+        android:title="@string/pref_title_default_currency" />
+
+
     <!-- NOTE: EditTextPreference accepts EditText attributes. -->
     <!-- NOTE: EditTextPreference's summary should be set to its value by the activity code. -->
     <!--<EditTextPreference