Several fixes/adjustments

- LineCharts are now smooth
- The splashscreens works 'properly' even when there is no cached icons
- Edit mode is disabled when adding a coin in the watchlist
- Add option to clear cache in the settings menu when in debug mode

.idea/gradle.xml

@@ -5,7 +5,7 @@
       <GradleProjectSettings>
         <option name="distributionType" value="LOCAL" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleHome" value="$APPLICATION_HOME_DIR$/gradle/gradle-4.4" />
+        <option name="gradleHome" value="$APPLICATION_HOME_DIR$/gradle/gradle-4.9" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />

app/src/main/java/com/herbron/moodl/Activities/DetailsActivityFragments/Charts.java

@@ -583,6 +583,7 @@ public class Charts extends Fragment {
         dataSet.setHighlightEnabled(true);
         dataSet.setDrawHorizontalHighlightIndicator(false);
         dataSet.setHighLightColor(currency.getChartColor());
+        dataSet.setMode(LineDataSet.Mode.CUBIC_BEZIER);
 
         return new LineData(dataSet);
     }

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

@@ -261,6 +261,8 @@ public class Summary extends Fragment implements BalanceSwitchManagerInterface,
         File cacheDir = new File(getContext().getCacheDir().getAbsolutePath());
         File[] cacheFiles = cacheDir.listFiles();
 
+        if(cacheFiles.length > 4)
+        {
             for(int i = 0; i < 4; i++)
             {
                 File cachedIcon = null;
@@ -291,6 +293,13 @@ public class Summary extends Fragment implements BalanceSwitchManagerInterface,
                 animator.setRepeatCount(ValueAnimator.INFINITE);
                 animator.start();
             }
+        }
+        else
+        {
+            TextView appNameTextView = splashLayout.findViewById(R.id.appNameTextView);
+            appNameTextView.setVisibility(View.VISIBLE);
+            animatedLayout.setVisibility(View.GONE);
+        }
 
         loadingDialog.setContentView(splashLayout);
         loadingDialog.show();

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

@@ -64,6 +64,7 @@ public class Watchlist extends Fragment {
     private boolean detailsUpdated;
     private boolean editModeEnabled;
     private DatabaseManager databaseManager;
+    private ImageButton editButton;
 
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
@@ -143,14 +144,7 @@ public class Watchlist extends Fragment {
         updater.execute();
     }
 
-    private void setupEditButton()
+    private void disableEdition()
-    {
-        final ImageButton editButton = view.findViewById(R.id.edit_button);
-        editButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View view) {
-
-                if(editModeEnabled)
     {
         editButton.setBackground(MoodlBox.getDrawable(R.drawable.check_to_edit, getContext()));
 
@@ -174,7 +168,8 @@ public class Watchlist extends Fragment {
             }
         }
     }
-                else
+
+    private void enableEdition()
     {
         editButton.setBackground(MoodlBox.getDrawable(R.drawable.edit_to_check, getContext()));
 
@@ -198,6 +193,22 @@ public class Watchlist extends Fragment {
             }
         }
     }
+
+    private void setupEditButton()
+    {
+        editButton = view.findViewById(R.id.edit_button);
+        editButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+
+                if(editModeEnabled)
+                {
+                    disableEdition();
+                }
+                else
+                {
+                    enableEdition();
+                }
             }
         });
     }
@@ -208,6 +219,11 @@ public class Watchlist extends Fragment {
         addWatchlistButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
+                if(editModeEnabled)
+                {
+                    disableEdition();
+                }
+
                 Intent selectionIntent = new Intent(getActivity(), CurrencySelectionActivity.class);
                 selectionIntent.putExtra("isWatchList", true);
                 startActivity(selectionIntent);

app/src/main/java/com/herbron/moodl/Activities/SettingsActivity.java

@@ -17,6 +17,7 @@ import android.preference.EditTextPreference;
 import android.preference.ListPreference;
 import android.preference.Preference;
 import android.preference.PreferenceActivity;
+import android.preference.PreferenceCategory;
 import android.preference.PreferenceFragment;
 import android.preference.PreferenceManager;
 import android.preference.SwitchPreference;
@@ -414,6 +415,33 @@ public class SettingsActivity extends AppCompatPreferenceActivity {
             bindPreferenceSummaryToValue(findPreference("default_currency"));
             bindPreferenceSummaryToValue(findPreference("minimum_value_displayed"));
 
+            PreferenceCategory developperCategory = (PreferenceCategory) findPreference("developper_category");
+
+            if(!BuildConfig.DEBUG)
+            {
+                getPreferenceScreen().removePreference(developperCategory);
+            }
+            else
+            {
+                developperCategory.getPreference(0).setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
+                    @Override
+                    public boolean onPreferenceClick(Preference preference) {
+                        File cacheDir = getContext().getCacheDir();
+                        File[] cachedFiles = cacheDir.listFiles();
+
+                        for(int i = 0; i < cachedFiles.length; i++)
+                        {
+                            if(cachedFiles[i].isFile())
+                            {
+                                cachedFiles[i].delete();
+                            }
+                        }
+
+                        return false;
+                    }
+                });
+            }
+
             findPreference("export").setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
                 @Override
                 public boolean onPreferenceClick(Preference preference) {

app/src/main/java/com/herbron/moodl/DataManagers/CurrencyData/CurrencyCardview.java

@@ -351,6 +351,7 @@ public class CurrencyCardview extends CardView {
         dataSet.setDrawCircles(false);
         dataSet.setDrawValues(false);
         dataSet.setHighlightEnabled(false);
+        dataSet.setMode(LineDataSet.Mode.CUBIC_BEZIER);
 
         return new LineData(dataSet);
     }

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

@@ -4,6 +4,14 @@
     android:layout_width="match_parent"
     android:background="@color/colorPrimaryDark">
 
+    <TextView
+        android:id="@+id/appNameTextView"
+        android:text="@string/app_name"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:visibility="gone"
+        android:layout_gravity="center"/>
+
     <LinearLayout
         android:id="@+id/animatedViewsLayout"
         android:layout_width="match_parent"

app/src/main/res/xml/pref_main.xml

@@ -27,7 +27,7 @@
     <PreferenceCategory
         android:title="@string/pref_title_category_data_backup">
 
-        <PreferenceScreen android:title="@string/pref_title_export"
+        <Preference android:title="@string/pref_title_export"
             android:key="export"/>
 
         <Preference android:title="@string/pref_title_import"
@@ -57,4 +57,13 @@
 
     </PreferenceCategory>
 
+    <PreferenceCategory
+        android:title="Developper"
+        android:key="developper_category">
+
+        <Preference android:title="Wipe cache"
+            android:key="wipe_cache"/>
+
+    </PreferenceCategory>
+
 </PreferenceScreen>