Notifications improvements (#78)

* Refactor notifications
* Change grade notify icon

app/src/main/java/io/github/wulkanowy/services/GradeNotify.java

@@ -0,0 +1,36 @@
+package io.github.wulkanowy.services;
+
+import android.annotation.TargetApi;
+import android.app.Notification;
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
+import android.content.Context;
+
+import io.github.wulkanowy.R;
+
+class GradeNotify extends NotificationService {
+
+    private static final String CHANNEL_ID = "Grade_Notify";
+
+    GradeNotify(Context context) {
+        super(context);
+    }
+
+    @Override
+    @TargetApi(26)
+    void createChannel() {
+        String channelName = getString(R.string.notify_grade_channel);
+
+        NotificationChannel notificationChannel = new NotificationChannel(CHANNEL_ID, channelName,
+                NotificationManager.IMPORTANCE_HIGH);
+        notificationChannel.enableLights(true);
+        notificationChannel.enableVibration(true);
+        notificationChannel.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);
+        getManager().createNotificationChannel(notificationChannel);
+    }
+
+    @Override
+    String getChannelId() {
+        return CHANNEL_ID;
+    }
+}

app/src/main/java/io/github/wulkanowy/services/NotificationService.java

@@ -3,29 +3,22 @@ package io.github.wulkanowy.services;
 
 import android.annotation.TargetApi;
 import android.app.Notification;
-import android.app.NotificationChannel;
 import android.app.NotificationManager;
 import android.content.Context;
 import android.os.Build;
+import android.support.annotation.StringRes;
 import android.support.v4.app.NotificationCompat;
 
 import java.util.Random;
 
-class NotificationService {
+public class NotificationService {
-
-    private static final String CHANNEL_ID = "Wulkanowy_New_Grade_Channel";
-
-    private static final String CHANNEL_NAME = "New Grade Channel";
 
     private NotificationManager manager;
 
     private Context context;
 
-    NotificationService(Context context) {
+    public NotificationService(Context context) {
         this.context = context;
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            createChannel();
-        }
     }
 
     void notify(Notification notification) {
@@ -33,23 +26,32 @@ class NotificationService {
     }
 
     NotificationCompat.Builder notificationBuilder() {
-        return new NotificationCompat.Builder(context, CHANNEL_ID);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            createChannel();
+        }
+        return new NotificationCompat.Builder(context, getChannelId());
     }
 
-    @TargetApi(26)
+    public void cancelAll() {
-    private void createChannel() {
+        getManager().cancelAll();
-        NotificationChannel notificationChannel = new NotificationChannel(CHANNEL_ID, CHANNEL_NAME,
-                NotificationManager.IMPORTANCE_HIGH);
-        notificationChannel.enableLights(true);
-        notificationChannel.enableVibration(true);
-        notificationChannel.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);
-        getManager().createNotificationChannel(notificationChannel);
     }
 
-    private NotificationManager getManager() {
+    NotificationManager getManager() {
         if (manager == null) {
             manager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
         }
         return manager;
     }
+
+    String getString(@StringRes int stringId) {
+        return context.getString(stringId);
+    }
+
+    @TargetApi(26)
+    void createChannel() {
+    }
+
+    String getChannelId() {
+        return null;
+    }
 }

app/src/main/java/io/github/wulkanowy/services/SyncJob.java

@@ -81,12 +81,12 @@ public class SyncJob extends SimpleJobService {
     }
 
     private void showNotification() {
-        NotificationService service = new NotificationService(getApplicationContext());
+        GradeNotify gradeNotify = new GradeNotify(getApplicationContext());
 
-        service.notify(service.notificationBuilder()
+        gradeNotify.notify(gradeNotify.notificationBuilder()
                 .setContentTitle(getStringTitle())
                 .setContentText(getStringContent())
-                .setSmallIcon(R.drawable.ic_stat_notify)
+                .setSmallIcon(R.drawable.ic_notify_grade)
                 .setAutoCancel(true)
                 .setDefaults(NotificationCompat.DEFAULT_ALL)
                 .setPriority(NotificationCompat.PRIORITY_HIGH)

app/src/main/java/io/github/wulkanowy/ui/splash/SplashActivity.java

@@ -5,6 +5,7 @@ import android.os.Bundle;
 import javax.inject.Inject;
 
 import butterknife.ButterKnife;
+import io.github.wulkanowy.services.NotificationService;
 import io.github.wulkanowy.services.SyncJob;
 import io.github.wulkanowy.ui.base.BaseActivity;
 import io.github.wulkanowy.ui.login.LoginActivity;
@@ -47,4 +48,9 @@ public class SplashActivity extends BaseActivity implements SplashContract.View
     public void startSyncService(int interval, boolean useOnlyWifi) {
         SyncJob.start(getApplicationContext(), interval, useOnlyWifi);
     }
+
+    @Override
+    public void cancelNotifications() {
+        new NotificationService(getApplicationContext()).cancelAll();
+    }
 }

app/src/main/java/io/github/wulkanowy/ui/splash/SplashContract.java

@@ -13,6 +13,8 @@ public interface SplashContract {
         void openMainActivity();
 
         void startSyncService(int interval, boolean useOnlyWifi);
+
+        void cancelNotifications();
     }
 
     @PerActivity

app/src/main/java/io/github/wulkanowy/ui/splash/SplashPresenter.java

@@ -18,6 +18,8 @@ public class SplashPresenter extends BasePresenter<SplashContract.View>
     @Override
     public void onStart(@NonNull SplashContract.View activity) {
         super.onStart(activity);
+        getView().cancelNotifications();
+
         if (getRepository().isServicesEnable()) {
             getView().startSyncService(getRepository().getServicesInterval(),
                     getRepository().isMobileDisable());

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

@@ -122,4 +122,6 @@
     <string name="pref_services_switch">Włącz odświeżanie danych w tle</string>
     <string name="pref_services_interval">Interwał między odświeżaniem danych</string>
     <string name="pref_services_mobile_data">Synchronizacja tylko przez WiFi</string>
+
+    <string name="notify_grade_channel">Nowe oceny</string>
 </resources>

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

@@ -118,4 +118,6 @@
     <string name="pref_services_switch">Enable background data refreshing</string>
     <string name="pref_services_interval">Interval between data refreshing</string>
     <string name="pref_services_mobile_data">Synchronization via WiFi only</string>
+
+    <string name="notify_grade_channel">New grades</string>
 </resources>