Optimization

- CurrencyDetailsList is now a Singleton class
- CurrencyTickerList is now a Singleton class

app/src/main/java/com/nauk/moodl/Activities/CurrencySelectionActivity.java

@@ -44,7 +44,7 @@ public class CurrencySelectionActivity extends AppCompatActivity implements Sear
 
         setContentView(R.layout.activity_add_currency);
 
-        currencyDetailsList = new CurrencyDetailsList(this);
+        currencyDetailsList = CurrencyDetailsList.getInstance(this);
 
         setTitle("Select a coin");
 
@@ -162,6 +162,23 @@ public class CurrencySelectionActivity extends AppCompatActivity implements Sear
         return false;
     }
 
+    private void detailsEvent()
+    {
+        setupAdapter();
+
+        setupList();
+
+        runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                setupSearchView();
+
+                expand(findViewById(R.id.listContainerLayout));
+                findViewById(R.id.currencyListProgressBar).setVisibility(View.GONE);
+            }
+        });
+    }
+
     private class ListLoader extends AsyncTask<Void, Integer, Void>
     {
         @Override
@@ -184,24 +201,19 @@ public class CurrencySelectionActivity extends AppCompatActivity implements Sear
                 Looper.prepare();
             }
 
+            if(!currencyDetailsList.isUpToDate())
+            {
                 currencyDetailsList.update(new BalanceManager.IconCallBack() {
                     @Override
                     public void onSuccess() {
-                    setupAdapter();
+                        detailsEvent();
-
-                    setupList();
-
-                    runOnUiThread(new Runnable() {
-                        @Override
-                        public void run() {
-                            setupSearchView();
-
-                            expand(findViewById(R.id.listContainerLayout));
-                            findViewById(R.id.currencyListProgressBar).setVisibility(View.GONE);
                     }
                 });
             }
-            });
+            else
+            {
+                detailsEvent();
+            }
 
             return null;
         }

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

@@ -73,7 +73,10 @@ public class MarketCapitalization extends Fragment {
         preferencesManager = new PreferencesManager(getContext());
         marketCapManager = new MarketCapManager(getContext());
 
-        currencyDetailsList = new CurrencyDetailsList(getContext());
+        currencyDetailsList = CurrencyDetailsList.getInstance(getContext());
+
+        if(!currencyDetailsList.isUpToDate())
+        {
             currencyDetailsList.update(new BalanceManager.IconCallBack() {
                 @Override
                 public void onSuccess() {
@@ -81,6 +84,12 @@ public class MarketCapitalization extends Fragment {
                     countCompletedMarketCapRequest();
                 }
             });
+        }
+        else
+        {
+            isDetailsUpdated = true;
+            countCompletedMarketCapRequest();
+        }
 
         defaultCurrency = preferencesManager.getDefaultCurrency();
         lastTimestamp = 0;

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

@@ -87,7 +87,7 @@ public class Summary extends Fragment implements HideBalanceSwitch {
 
         preferencesManager = new PreferencesManager(getActivity());
         balanceManager = new BalanceManager(getActivity());
-        currencyTickerList = new CurrencyTickerList(getActivity());
+        currencyTickerList = CurrencyTickerList.getInstance(getActivity());
 
         currencyLayout = fragmentView.findViewById(R.id.currencyListLayout);
         refreshLayout = fragmentView.findViewById(R.id.swiperefreshsummary);
@@ -690,6 +690,8 @@ public class Summary extends Fragment implements HideBalanceSwitch {
 
         @Override
         protected Void doInBackground(Void... params)
+        {
+            if(!currencyTickerList.isUpToDate())
             {
                 currencyTickerList.update(new BalanceManager.IconCallBack() {
                     @Override
@@ -697,6 +699,12 @@ public class Summary extends Fragment implements HideBalanceSwitch {
                         countCoins(false, false, true);
                     }
                 });
+            }
+            else
+            {
+                countCoins(false, false, true);
+            }
+
             balanceManager.updateDetails(new BalanceManager.IconCallBack() {
                 @Override
                 public void onSuccess()

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

@@ -69,12 +69,12 @@ public class Watchlist extends Fragment {
         view = inflater.inflate(R.layout.fragment_watchlist_homeactivity, container, false);
 
         refreshLayout = view.findViewById(R.id.swiperefreshwatchlist);
-        currencyDetailsList = new CurrencyDetailsList(getContext());
+        currencyDetailsList = CurrencyDetailsList.getInstance(getContext());
         preferencesManager = new PreferencesManager(getContext());
 
         lastTimestamp = 0;
         defaultCurrency = preferencesManager.getDefaultCurrency();
-        currencyTickerList = new CurrencyTickerList(getActivity());
+        currencyTickerList = CurrencyTickerList.getInstance(getActivity());
         tickerUpdated = false;
         updateTickerList();
 
@@ -105,6 +105,8 @@ public class Watchlist extends Fragment {
         AsyncTask<Void, Integer, Void> updater = new AsyncTask<Void, Integer, Void>() {
             @Override
             protected Void doInBackground(Void... voids) {
+                if(!currencyTickerList.isUpToDate())
+                {
                     currencyTickerList.update(new BalanceManager.IconCallBack() {
                         @Override
                         public void onSuccess() {
@@ -112,6 +114,13 @@ public class Watchlist extends Fragment {
                             checkUpdatedData();
                         }
                     });
+                }
+                else
+                {
+                    tickerUpdated = true;
+                    checkUpdatedData();
+                }
+
                 return null;
             }
         };
@@ -227,6 +236,8 @@ public class Watchlist extends Fragment {
                 protected Void doInBackground(Void... voids) {
                     watchlistManager.updateWatchlist();
 
+                    if(!currencyDetailsList.isUpToDate())
+                    {
                         currencyDetailsList.update(new BalanceManager.IconCallBack() {
                             @Override
                             public void onSuccess() {
@@ -234,6 +245,12 @@ public class Watchlist extends Fragment {
                                 checkUpdatedData();
                             }
                         });
+                    }
+                    else
+                    {
+                        detailsUpdated = true;
+                        checkUpdatedData();
+                    }
                     return null;
                 }
             };

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

@@ -61,7 +61,7 @@ public class BalanceManager {
         databaseManager = new DatabaseManager(context);
         hitBtcManagers = new ArrayList<>();
         binanceManagers = new ArrayList<>();
-        currencyDetailsList = new CurrencyDetailsList(context);
+        currencyDetailsList = CurrencyDetailsList.getInstance(context);
 
         balanceCounter = 0;
     }
@@ -248,8 +248,15 @@ public class BalanceManager {
     }
 
     public void updateDetails(final IconCallBack callBack)
+    {
+        if(!currencyDetailsList.isUpToDate())
         {
             currencyDetailsList.update(callBack);
+        }
+        else
+        {
+            callBack.onSuccess();
+        }
         /*StringRequest strRequest = new StringRequest(Request.Method.GET, detailUrl,
                 new Response.Listener<String>() {
                     @Override

app/src/main/java/com/nauk/moodl/DataManagers/CurrencyData/CurrencyDetailsList.java

@@ -1,5 +1,6 @@
 package com.nauk.moodl.DataManagers.CurrencyData;
 
+import android.content.Context;
 import android.os.StrictMode;
 import android.util.Log;
 
@@ -29,14 +30,24 @@ public class CurrencyDetailsList {
     final private static String DETAILURL = "https://min-api.cryptocompare.com/data/all/coinlist";
     private RequestQueue requestQueue;
     private LinkedHashMap<String, String> coinInfosHashmap;
-    private android.content.Context context;
+    private static CurrencyDetailsList INSTANCE;
+    private boolean upToDate;
 
-    public CurrencyDetailsList(android.content.Context context)
+    private CurrencyDetailsList(Context context)
     {
-        this.context = context;
         requestQueue = Volley.newRequestQueue(context);
     }
 
+    public static synchronized CurrencyDetailsList getInstance(Context context)
+    {
+        if(INSTANCE == null)
+        {
+            INSTANCE = new CurrencyDetailsList(context);
+        }
+
+        return INSTANCE;
+    }
+
     public void update(final BalanceManager.IconCallBack callBack)
     {
         StringRequest strRequest = new StringRequest(Request.Method.GET, DETAILURL,
@@ -45,19 +56,25 @@ public class CurrencyDetailsList {
                     public void onResponse(String response) {
                         if (response.length() > 0) {
                             processDetailResult(response, callBack);
+
                         }
+                        upToDate = true;
                     }
                 },
                 new Response.ErrorListener() {
                     @Override
                     public void onErrorResponse(VolleyError error) {
-
+                        upToDate = true;
                     }
                 });
 
         requestQueue.add(strRequest);
     }
 
+    public boolean isUpToDate()
+    {
+        return upToDate;
+    }
 
     private void processDetailResult(String response, final BalanceManager.IconCallBack callBack)
     {
@@ -87,7 +104,7 @@ public class CurrencyDetailsList {
                         break;
                 }
             } catch (JSONException e) {
-                Log.d(context.getResources().getString(R.string.debug), "ImageUrl not found.");
+                Log.d("moodl", "ImageUrl not found.");
             }
         }
 

app/src/main/java/com/nauk/moodl/DataManagers/CurrencyData/CurrencyTickerList.java

@@ -1,5 +1,6 @@
 package com.nauk.moodl.DataManagers.CurrencyData;
 
+import android.content.Context;
 import android.util.Log;
 
 import com.android.volley.Request;
@@ -28,14 +29,29 @@ public class CurrencyTickerList {
     final private static String TICKERLISTURL = "https://api.coinmarketcap.com/v2/listings/";
     private RequestQueue requestQueue;
     private List<Currency> currencyTickerList;
-    private android.content.Context context;
+    private static CurrencyTickerList INSTANCE;
+    private boolean upToDate;
 
-    public CurrencyTickerList(android.content.Context context)
+    private CurrencyTickerList(Context context)
     {
-        this.context = context;
         requestQueue = Volley.newRequestQueue(context);
     }
 
+    public static synchronized CurrencyTickerList getInstance(Context context)
+    {
+        if(INSTANCE == null)
+        {
+            INSTANCE = new CurrencyTickerList(context);
+        }
+
+        return INSTANCE;
+    }
+
+    public boolean isUpToDate()
+    {
+        return upToDate;
+    }
+
     public void update(final BalanceManager.IconCallBack callBack)
     {
         currencyTickerList = new ArrayList<>();
@@ -46,12 +62,13 @@ public class CurrencyTickerList {
                         if (response.length() > 0) {
                             processTickerListResult(response, callBack);
                         }
+                        upToDate = true;
                     }
                 },
                 new Response.ErrorListener() {
                     @Override
                     public void onErrorResponse(VolleyError error) {
-
+                        upToDate = true;
                     }
                 });