Added base classes for Firebase

app/build.gradle

@@ -7,8 +7,8 @@ android {
         applicationId "de.mytfg.apps.mytfg"
         minSdkVersion 15
         targetSdkVersion 25
-        versionCode 6
-        versionName "0.5.1b"
+        versionCode 7
+        versionName "0.5.2b"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {
@@ -32,4 +32,5 @@ dependencies {
     compile 'com.android.support:cardview-v7:25.2.0'
     compile 'com.github.amlcurran.showcaseview:library:5.4.3'
     compile 'ch.acra:acra:4.7.0'
+    compile 'com.google.firebase:firebase-messaging:10.2.0'
 }

app/src/main/AndroidManifest.xml

@@ -27,6 +27,20 @@
             </intent-filter>
         </activity>
 
+        <service
+            android:name=".firebase.FbMessagingService">
+            <intent-filter>
+                <action android:name="com.google.firebase.MESSAGING_EVENT"/>
+            </intent-filter>
+        </service>
+
+        <service
+            android:name=".firebase.FbInstanceIdService">
+            <intent-filter>
+                <action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
+            </intent-filter>
+        </service>
+
     </application>
 
 </manifest>

app/src/main/java/de/mytfg/apps/mytfg/activities/MainActivity.java

@@ -63,27 +63,27 @@ public class MainActivity extends AppCompatActivity {
                     default:
                         return false;
                     case R.id.mainmenu_news:
-                        navi.clear();
+                        //navi.clear();
                         navi.navigate(new TfgFragment(), R.id.fragment_container);
                         return true;
                     case R.id.mainmenu_plan:
-                        navi.clear();
+                        //navi.clear();
                         navi.navigate(new PlanFragment(), R.id.fragment_container);
                         return true;
                     case R.id.mainmenu_vrr:
-                        navi.clear();
+                        //navi.clear();
                         navi.navigate(new VrrFragment(), R.id.fragment_container);
                         return true;
                     case R.id.mainmenu_account:
-                        navi.clear();
+                        //navi.clear();
                         navi.navigate(new SettingsFragment(), R.id.fragment_container);
                         return true;
                     case R.id.mainmenu_about:
-                        navi.clear();
+                        //navi.clear();
                         navi.navigate(new AboutFragment(), R.id.fragment_container);
                         return true;
                     case R.id.mainmenu_feedback:
-                        navi.clear();
+                        //navi.clear();
                         navi.navigate(new FeedbackFragment(), R.id.fragment_container);
                         return true;
 
@@ -97,11 +97,11 @@ public class MainActivity extends AppCompatActivity {
                         navigationView.inflateMenu(R.menu.navigation_menu);
                         return true;
                     case R.id.mainmenu_links:
-                        navi.clear();
+                        //navi.clear();
                         navi.navigate(new LinksFragment(), R.id.fragment_container);
                         return true;
                     case R.id.submenu_partners_secretary:
-                        navi.clear();
+                        //navi.clear();
                         navi.navigate(new OfficeFragment(), R.id.fragment_container);
                         return true;
                 }

app/src/main/java/de/mytfg/apps/mytfg/firebase/FbApi.java

+package de.mytfg.apps.mytfg.firebase;
+
+import android.content.Context;
+
+import org.json.JSONObject;
+
+import javax.net.ssl.HttpsURLConnection;
+
+import de.mytfg.apps.mytfg.api.ApiCallback;
+import de.mytfg.apps.mytfg.api.ApiParams;
+import de.mytfg.apps.mytfg.api.MyTFGApi;
+import de.mytfg.apps.mytfg.api.SuccessCallback;
+
+/**
+ * Used to manage the Firebase Token and access the MyTFG API.
+ */
+
+public class FbApi {
+    private Context context;
+
+    public FbApi(Context context) {
+        this.context = context;
+    }
+
+    public void sendFbToken(String token, final SuccessCallback callback) {
+        MyTFGApi api = new MyTFGApi(context);
+        ApiParams params = new ApiParams();
+        params.addParam("push_token", token);
+        params.addParam("service", "firebase");
+        api.addAuth(params);
+        api.call("api_firebase_token", params, new ApiCallback() {
+            @Override
+            public void callback(JSONObject result, int responseCode) {
+                if (responseCode == HttpsURLConnection.HTTP_OK) {
+                    callback.callback(true);
+                } else {
+                    callback.callback(false);
+                }
+            }
+        });
+    }
+}

app/src/main/java/de/mytfg/apps/mytfg/firebase/FbInstanceIdService.java

+package de.mytfg.apps.mytfg.firebase;
+
+import android.util.Log;
+
+import com.google.firebase.iid.FirebaseInstanceId;
+import com.google.firebase.iid.FirebaseInstanceIdService;
+
+import de.mytfg.apps.mytfg.api.SuccessCallback;
+
+public class FbInstanceIdService extends FirebaseInstanceIdService {
+    @Override
+    public void onTokenRefresh() {
+        String refreshedToken = FirebaseInstanceId.getInstance().getToken();
+        Log.d("FB-ID", "Refreshed token: " + refreshedToken);
+
+        FbApi fbApi = new FbApi(getApplicationContext());
+        fbApi.sendFbToken(refreshedToken, new SuccessCallback() {
+            @Override
+            public void callback(boolean success) {
+                Log.d("FB-ID-Server", "" + success);
+            }
+        });
+    }
+}

app/src/main/java/de/mytfg/apps/mytfg/firebase/FbMessagingService.java

+package de.mytfg.apps.mytfg.firebase;
+
+import com.google.firebase.messaging.FirebaseMessagingService;
+
+public class FbMessagingService extends FirebaseMessagingService {
+}

app/src/main/java/de/mytfg/apps/mytfg/fragments/PlanFragment.java

@@ -196,7 +196,7 @@ public class PlanFragment extends AuthenticationFragment {
         ViewPager viewPager = (ViewPager) view.findViewById(R.id.plan_pager);
 
         // Create Pager elements if not existent
-        if (today == null || tomorrow == null) {
+        if (today == null || tomorrow == null || true) {
             todayPlan = new Vplan(context, "today");
             tomorrowPlan = new Vplan(context, "tomorrow");
 

app/src/main/java/de/mytfg/apps/mytfg/fragments/TfgFragment.java

@@ -63,7 +63,7 @@ public class TfgFragment extends AuthenticationFragment {
         super.onResume();
         ViewPager viewPager = (ViewPager) view.findViewById(R.id.tfg_pager);
         // Create Pager elements if not existent
-        if (newsLogic == null || eventsLogic == null) {
+        if (newsLogic == null || eventsLogic == null || true) {
             news = new TfgNews(context);
             newsLogic = new NewsLogic(news, context);
 

app/src/main/java/de/mytfg/apps/mytfg/navigation/Navigation.java

@@ -27,6 +27,8 @@ import de.mytfg.apps.mytfg.tools.CopyDrawableImageTransform;
 public class Navigation {
     private Context context;
 
+    private boolean finishOnBack = false;
+
     public Navigation(Context context) {
         this.context = context;
     }
@@ -39,6 +41,8 @@ public class Navigation {
             return;
         }*/
 
+        finishOnBack = false;
+
         MyTFGApi api = new MyTFGApi(context);
         if (fragment.needsAuthentication() && !api.isLoggedIn()) {
             navigate(new LoginFragment(), container);
@@ -108,7 +112,12 @@ public class Navigation {
         if (fragmentManager.getBackStackEntryCount() > 1) {
             fragmentManager.popBackStack();
         } else {
-            ((MainActivity)context).finish();
+            if (finishOnBack) {
+                ((MainActivity) context).finish();
+            } else {
+                finishOnBack = true;
+                snackbar(context.getString(R.string.next_close));
+            }
         }
     }
 

app/src/main/java/de/mytfg/apps/mytfg/objects/Vplan.java

@@ -151,7 +151,7 @@ public class Vplan extends MytfgObject {
             timestamp = result.optLong("api_time", System.currentTimeMillis());
             loaded = true;
         } catch (JSONException ex) {
-            ex.printStackTrace();
+            //ex.printStackTrace();
             return false;
         }
         return true;

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

@@ -8,6 +8,7 @@
     <string name="please_wait">Bitte warten</string>
     <string name="login_process">Sie werden eingeloggt&#8230;</string>
     <string name="login_empty">Bitte Nutzernamen und Passwort angeben.</string>
+    <string name="next_close">Drücken Sie den Zurück-Button zum Schließen erneut</string>
 
     <!-- VPlan Menu -->
     <string name="menutitle_home">Start</string>
@@ -218,7 +219,7 @@
     <string name="sc_home_navi_title">Navigation</string>
     <string name="sc_home_navi_text">Klicken Sie zum Öffnen der Navigation hier</string>
     <string name="sc_home_news">Aktuelles vom TFG</string>
-    <string name="sc_home_news_text">Aktuelles News vom TFG - Ankündigungen, Projekte und mehr!</string>
+    <string name="sc_home_news_text">Aktuelle News vom TFG - Ankündigungen, Projekte und mehr!</string>
     <string name="sc_home_events">TFG Kalender</string>
     <string name="sc_home_events_text">Aktuelle Events am TFG</string>
     <string name="sc_plan_today_title">Aktueller Tag</string>

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

@@ -8,6 +8,8 @@
     <string name="login_process">Logging in&#8230;</string>
     <string name="login_empty">Please enter username and password</string>
 
+    <string name="next_close">Press back again to close the App</string>
+
     <!-- Main Menu -->
     <string name="menutitle_home">Home</string>
     <string name="menutitle_news">News</string>