Retrofit API + Dollar Rate Objects 100% done

app/src/main/java/fr/romanet/vj/apps/myrealestateagency/Config.java

@@ -5,6 +5,7 @@ import fr.romanet.vj.apps.myrealestateagency.entities.Agency;
 public class Config {
 
     private static String sharedPreferences = "prefs";
+    public static String DOLLAR_RATE = "dollarrate";
     private static String selected_agency_index;
 
     public static String getSharedPreferences() {
@@ -15,6 +16,10 @@ public class Config {
         return selected_agency_index;
     }
 
+    public static String getDollarRate() {
+        return DOLLAR_RATE;
+    }
+
     public static void setSelected_agency_index(String selected_agency_index) {
         Config.selected_agency_index = selected_agency_index;
     }

app/src/main/java/fr/romanet/vj/apps/myrealestateagency/SharedPrefs.java

@@ -16,6 +16,11 @@ public class SharedPrefs {
         return sharedPreferences.getInt(Config.get_selected_agency_index(), -1);
     }
 
+    public double get_dollar_rate(){
+        sharedPreferences = MyApp.getContext().getSharedPreferences(Config.getSharedPreferences(), MODE_PRIVATE);
+        return Double.parseDouble(sharedPreferences.getString(Config.DOLLAR_RATE, "0"));
+    }
+
     public void set_logged_agent_id(Agent agent){
         sharedPreferences = MyApp.getContext().getSharedPreferences(Config.getSharedPreferences(), MODE_PRIVATE);
         sharedPreferences.edit()
@@ -23,5 +28,12 @@ public class SharedPrefs {
                 .apply();
     }
 
+    public void set_dollar_rate(double rate){
+        sharedPreferences = MyApp.getContext().getSharedPreferences(Config.getSharedPreferences(), MODE_PRIVATE);
+        sharedPreferences.edit()
+                .putString(Config.DOLLAR_RATE, String.valueOf(rate))
+                .apply();
+    }
+
 
 }

app/src/main/java/fr/romanet/vj/apps/myrealestateagency/repository/PropertyRepository.java

@@ -4,10 +4,14 @@ import android.app.Application;
 import android.util.Log;
 
 import androidx.lifecycle.LiveData;
+import androidx.lifecycle.ViewModel;
 
+import java.io.IOException;
+import java.time.temporal.ValueRange;
 import java.util.List;
 
 import fr.romanet.vj.apps.myrealestateagency.DollarCurrencyObj;
+import fr.romanet.vj.apps.myrealestateagency.SharedPrefs;
 import fr.romanet.vj.apps.myrealestateagency.dao.PropertyDao;
 import fr.romanet.vj.apps.myrealestateagency.database.RealEstateAgencyDatabase;
 import fr.romanet.vj.apps.myrealestateagency.entities.Agency;
@@ -31,10 +35,11 @@ public class PropertyRepository {
         allProperties = propertyDao.getPropertyList();
     }
 
-    public double get_dollar_rate(){
+    public void get_dollar_rate() throws IOException {
+
 
         // - Answer
-        dollar_rate = 1;
+        dollar_rate = -1;
         Log.d("CAT", "---------> Call...");
 
 
@@ -45,8 +50,8 @@ public class PropertyRepository {
                 .build();
 
         JsonApiInterface jsonApiInterface = retrofit.create(JsonApiInterface.class);
-//        Call<DollarCurrency> call = jsonApiInterface.getDollarRate("USD");
         Call<DollarCurrencyObj> call = jsonApiInterface.getDollarRate("USD");
+
         call.enqueue(new Callback<DollarCurrencyObj>() {
             @Override
             public void onResponse(Call<DollarCurrencyObj> call, Response<DollarCurrencyObj> response) {
@@ -61,6 +66,12 @@ public class PropertyRepository {
                 DollarCurrencyObj dollarCurrencyObj = response.body();
                 Log.d("CAT", "---------> RESP:" + dollarCurrencyObj.getDollarCurrencyRateObj().getValue() + " | " + String.valueOf(dollarCurrencyObj.getFetchDate()));
                 dollar_rate = dollarCurrencyObj.getDollarCurrencyRateObj().getValue();
+
+                SharedPrefs sharedPrefs = new SharedPrefs();
+                sharedPrefs.set_dollar_rate(dollar_rate);
+                Log.d("CAT", "---------> SAVED:" + String.valueOf(dollar_rate));
+                dollar_rate = sharedPrefs.get_dollar_rate();
+                Log.d("CAT", "---------> RETRI:" + String.valueOf(dollar_rate));
             }
 
             @Override
@@ -72,7 +83,9 @@ public class PropertyRepository {
         });
 
         Log.d("CAT", "---------> Call...END");
-        return dollar_rate;
+
+        // - Dont return anything, RetroFit asynctasks finishes after function execution.
+        return;
     }
 
 

app/src/main/java/fr/romanet/vj/apps/myrealestateagency/view/PropertiesDetailActivity.java

@@ -6,9 +6,11 @@ import android.view.View;
 import android.widget.TextView;
 
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.lifecycle.Observer;
 import androidx.lifecycle.SavedStateViewModelFactory;
 import androidx.lifecycle.ViewModelProvider;
 
+import java.io.IOException;
 import java.text.DateFormat;
 import java.text.DecimalFormat;
 import java.text.SimpleDateFormat;
@@ -130,9 +132,23 @@ public class PropertiesDetailActivity extends AppCompatActivity {
         PropertiesDetailActivity.this.startActivity(i);
     }
 
-    public void convert_currency(View view){
+    public void observePrice(){
-        double price_value = viewModel.convert_currency(property);
+        viewModel.property_price.observe(this, new Observer<Double>() {
-        price.setText("RRPrice : " + (new DecimalFormat("##.##").format(price_value)));
+            @Override
-//        price.setText("RRPrice : " + (new DecimalFormat("##.##").format(1.1)));
+            public void onChanged(Double aDouble) {
+                if(aDouble == 0){
+                    price.setText("Price : Please wait...");
+                }else{
+                    price.setText("Price : " + (new DecimalFormat("##.##").format(aDouble)));
+                }
+
+            }
+        });
+    }
+
+
+    public void convert_currency(View view) throws IOException {
+        viewModel.convert_currency(property);
+        observePrice();
     }
 }

app/src/main/java/fr/romanet/vj/apps/myrealestateagency/viewmodel/PropertiesDetailActivityViewModel.java

@@ -1,5 +1,6 @@
 package fr.romanet.vj.apps.myrealestateagency.viewmodel;
 
+import android.os.AsyncTask;
 import android.util.Log;
 
 import androidx.lifecycle.MutableLiveData;
@@ -7,13 +8,19 @@ import androidx.lifecycle.SavedStateHandle;
 import androidx.lifecycle.Transformations;
 import androidx.lifecycle.ViewModel;
 
+import java.io.IOException;
+
 import fr.romanet.vj.apps.myrealestateagency.MyApp;
+import fr.romanet.vj.apps.myrealestateagency.SharedPrefs;
 import fr.romanet.vj.apps.myrealestateagency.entities.Property;
 import fr.romanet.vj.apps.myrealestateagency.repository.PropertyRepository;
 import fr.romanet.vj.apps.myrealestateagency.view.PropertiesDetailActivity;
 
 public class PropertiesDetailActivityViewModel extends ViewModel {
+
     public MutableLiveData<Property> property = new MutableLiveData<>();
+    public MutableLiveData<Double> property_price = new MutableLiveData<>();
+
     private PropertyRepository propertyRepository;
 
     private Boolean current_currency_is_eur;
@@ -32,18 +39,71 @@ public class PropertiesDetailActivityViewModel extends ViewModel {
     }
 
 
-    public double convert_currency(Property property){
+    private class AsyncTaskRunner extends AsyncTask<String, String, String> {
+
+        private String resp;
+
+        @Override
+        protected String doInBackground(String... params) {
+            publishProgress("Sleeping..."); // Calls onProgressUpdate()
+            try {
+                int time = 1000;
+
+                Thread.sleep(time);
+                resp = "Slept for " + 1 + " seconds";
+                SharedPrefs sharedPrefs = new SharedPrefs();
+                property_price.postValue(Double.parseDouble(params[0]) * sharedPrefs.get_dollar_rate());
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+                resp = e.getMessage();
+            } catch (Exception e) {
+                e.printStackTrace();
+                resp = e.getMessage();
+            }
+            return resp;
+        }
+
+
+        @Override
+        protected void onPostExecute(String result) {
+            // execution of result of Long time consuming operation
+
+        }
+
+
+        @Override
+        protected void onPreExecute() {
+
+        }
+
+
+        @Override
+        protected void onProgressUpdate(String... text) {
+         }
+    }
+
+    public void convert_currency(Property property) throws IOException {
+
+        if( current_currency_is_eur){
+            propertyRepository.get_dollar_rate();
+
+            SharedPrefs sharedPrefs = new SharedPrefs();
+            double dollar_rate = sharedPrefs.get_dollar_rate();
 
-        if(current_currency_is_eur){
-            double dollar_rate = propertyRepository.get_dollar_rate();
             double usd_price = property.propertyStatue.price * dollar_rate;
+            property_price.postValue(usd_price);
+            AsyncTaskRunner runner = new AsyncTaskRunner();
+            runner.execute(String.valueOf(property.propertyStatue.price));
+
             current_currency_is_eur = false;
             Log.d("CAT", "----------> Convert was EUR (dollar rate:" + String.valueOf(dollar_rate) + ")");
-            return usd_price;
+            return;
         }else{
+            property_price.postValue(property.propertyStatue.price);
+
             current_currency_is_eur = true;
             Log.d("CAT", "----------> Convert was USD");
-            return property.propertyStatue.price;
+            return;
         }
     }
 }