Add Support for user to choose his history order

Fixes #15

app/src/main/java/fr/mobdev/goblim/Database.java

@@ -88,10 +88,10 @@ public class Database extends SQLiteOpenHelper {
         }
 	}
 
-	public List<Img> getHistory() {
+	public List<Img> getHistory(boolean descendingOrder) {
 		List<Img> history = new ArrayList<>();
         //ask for history order by date
-		String orderBy = "date ASC";
+		String orderBy = descendingOrder ? "date DESC" : "date ASC";
 		Cursor cursor = getReadableDatabase().query("history", null, null, null, null, null, orderBy);
 		while(cursor.moveToNext())
 		{

app/src/main/java/fr/mobdev/goblim/activity/HistoryActivity.java

@@ -20,6 +20,7 @@ package fr.mobdev.goblim.activity;
 
 import android.content.Context;
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.graphics.Typeface;
 import android.os.Bundle;
 import android.support.annotation.NonNull;
@@ -27,6 +28,8 @@ import android.support.design.widget.FloatingActionButton;
 import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.Toolbar;
 import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.AdapterView;
@@ -52,6 +55,7 @@ import fr.mobdev.goblim.R;
 public class HistoryActivity extends AppCompatActivity {
 
     private List<Long> imagesIdx;
+    private boolean descendingOrder;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -71,6 +75,15 @@ public class HistoryActivity extends AppCompatActivity {
         });
 
         ListView historyList = (ListView) findViewById(R.id.history_list);
+        SharedPreferences prefs = getSharedPreferences(getString(R.string.app_name), MODE_PRIVATE);
+        if(prefs.getAll().size() == 0) {
+            descendingOrder = true;
+            SharedPreferences.Editor editor = prefs.edit();
+            editor.putBoolean("order", descendingOrder);
+            editor.commit();
+        } else {
+            descendingOrder = prefs.getBoolean("order",true);
+        }
 
         updateHistory();
 
@@ -96,11 +109,34 @@ public class HistoryActivity extends AppCompatActivity {
         updateHistory();
     }
 
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.menu_history, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        int id = item.getItemId();
+
+        if (id == R.id.action_change_order) {
+            SharedPreferences prefs = getSharedPreferences(getString(R.string.app_name), MODE_PRIVATE);
+            descendingOrder = !descendingOrder;
+            SharedPreferences.Editor editor = prefs.edit();
+            editor.putBoolean("order", descendingOrder);
+            editor.commit();
+            updateHistory();
+            return true;
+        }
+
+        return super.onOptionsItemSelected(item);
+    }
+
     private void updateHistory()
     {
         ListView historyList = (ListView) findViewById(R.id.history_list);
 
-        List<Img> images = Database.getInstance(getApplicationContext()).getHistory();
+        List<Img> images = Database.getInstance(getApplicationContext()).getHistory(descendingOrder);
         if(imagesIdx == null)
             imagesIdx = new ArrayList<>();
         imagesIdx.clear();

app/src/main/res/menu/menu_history.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools" tools:context="fr.mobdev.goblim.activity.HistoryActivity">
+    <item android:id="@+id/action_change_order"
+        android:icon="@drawable/ic_action_sort"
+        android:title="@string/reorder_history"
+        app:showAsAction="ifRoom" />
+</menu>

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

@@ -40,6 +40,7 @@
     <string name="uploading_files">Envoi Image </string>
     <string name="retry_failed_uploads">Voulez vous retenter l\'envoi des fichiers listés?</string>
     <string name="retry_failed_upload">Voulez vous retenter l\'envoi de ce fichier?</string>
+    <string name="reorder_history">Changer l\'ordre de l\'historique</string>
     <string-array name="deleted_days">
         <item>Pas de limitation</item>
         <item>24 Heures</item>

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

@@ -40,6 +40,7 @@
     <string name="uploading_files">Uploading Image </string>
     <string name="retry_failed_uploads">Would you retry upload of listed files?</string>
     <string name="retry_failed_upload">Would you retry upload of this file?</string>
+    <string name="reorder_history">Change history order</string>
     <string-array name="deleted_days">
         <item>No limitation</item>
         <item>24 Hours</item>