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LiveInternet.ru:
: 17.03.2011
:
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: 51

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[ ] android .

, 30 2017 . 13:31 +

Android-: (Fabric method). Firebase Cloud Messaging ( FCM). , , - .


image


FCM?


FCM ( ), -. (// ), , FCM . FCM Google . , , , , .


push-?


push- , . UI- -, : / . , , . , . , - . , -, , , if else, , , , .


FCM



, , . , , , . . , , .


:


  • ( );
  • ( );
  • web ( );

Android-


Android Studio


image


core . parent teacher .


push- , .
. , .



:


  • ( );
  • .

:


  • ( );
  • (push );


FCM Android- push- , FirebaseMessagingService.


public class MyFirebaseMessagingService extends FirebaseMessagingService {

     @Override
   public void onMessageReceived(RemoteMessage remoteMessage) {
          super.onMessageReceived(remoteMessage);
     }
}

FCM :


-> FCM Android
-> Firebase


onMessageReceived() RemoteMessage, , : , Map , push- .


. push , , , onMessageReceived() . firebase-messaging push` . . ( ) data, MyFirebaseMessagingService. FCM. data.


-> Firebase



, , :


public class TeacherFirebaseMessagingService extends FirebaseMessagingService {

   private static final String KEY_PUSH_TYPE = "type";
   private static final String KEY_PUSH_TITLE = "title";
   private static final String KEY_PUSH_CONTENT = "content";

   private static final String TYPE_NEW_CHILD = "add_child";
   private static final String TYPE_BIRTHDAY = "birthday";

   private static final String EMPTY_STRING = "";

   private static final int DEFAULT_NOTIFICATION_ID = 15;

   @Override
   public void onMessageReceived(RemoteMessage remoteMessage) {
       super.onMessageReceived(remoteMessage);
       Map data = remoteMessage.getData();
       if (data.containsKey(KEY_PUSH_TYPE)) {

           NotificationCompat.Builder notificationBuilder;
           String notificationTitle = null;
           if (data.containsKey(KEY_PUSH_TITLE)) {
               notificationTitle = data.get(KEY_PUSH_TITLE);
           }
           String notificationContent = null;
           if (data.containsKey(KEY_PUSH_CONTENT)) {
               notificationContent = data.get(KEY_PUSH_CONTENT);
           }
           NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
           String pushType = data.get(KEY_PUSH_TYPE);
           if (pushType.equals(TYPE_NEW_CHILD)) {
               builder.setSmallIcon(R.drawable.ic_add_child)
                       .setContentTitle(notificationTitle != null ? notificationTitle : EMPTY_STRING)
                       .setContentText(notificationContent != null ? notificationContent : EMPTY_STRING);
           } else if (pushType.equals(TYPE_BIRTHDAY)) {
//                notificationBuilder = ....
//                       
           }
           NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
           notificationManager.notify(DEFAULT_NOTIFICATION_ID, builder.build());
       }
   }

title content remoteMessage:


private static final String KEY_TITLE = "title";
private static final String KEY_CONTENT = "content";

:


 private static final String TYPE_NEW_CHILD = "add_child";
 private static final String TYPE_BIRTHDAY = "birthday";

, private NotificationCompat.Builder. VK , :


  • PendingIntent . .
  • , . data, . , .

TeacherFirebaseMessagingReceiver god object`. . , - .



.


, core:


public class CoreFirebaseMessagingService extends FirebaseMessagingService {

   @Override
   public void onMessageReceived(RemoteMessage remoteMessage) {
       super.onMessageReceived(remoteMessage);
   }
}

CoreFirebaseMessagingService .


CoreNotification. , .


public abstract class CoreNotification {
   public static final String KEY_FROM_PUSH = "CoreNotification.FromNotification";

   private static final String KEY_TITLE = "title";
   private static final String KEY_CONTENT = "body";

   protected static final String STRING_EMPTY = "";

   protected RemoteMessage remoteMessage;

   public CoreNotification(RemoteMessage remoteMessage) {
       this.remoteMessage = remoteMessage;
   }

   protected String getTitleFromMessage() {
       Map data = remoteMessage.getData();
       if (data.containsKey(KEY_TITLE)) {
           return data.get(KEY_TITLE);
       } else {
           return STRING_EMPTY;
       }
   }

   protected String getContentFromMessage() {
       Map data = remoteMessage.getData();
       if (data.containsKey(KEY_CONTENT)) {
           return data.get(KEY_CONTENT);
       } else {
           return STRING_EMPTY;
       }
   }

   public String getTitle() {
       return getTitleFromMessage();
   }

   public String getContent() {
       return getContentFromMessage();
   }

   protected abstract PendingIntent configurePendingIntent(Context context);

   protected abstract @DrawableRes int largeIcon();

   protected abstract String getNotificationTag();
}

RemoteMessage.
. STRING_EMPTY , protected.


- . , , Java- , CoreNotification , . . title content . , getTitleFromMessage() getContentFromMessage(). ( title content RemoteMessage.getData() , ). protected, title content - .


CoreNotificationCreator. . CoreNotification.


public abstract class CoreNotificationCreator {

   private static final String KEY_NOTIFICATION_TAG = "CoreNotificationCreator.TagKey";
   private static final String DEFAULT_TAG = "CoreNotificationCreator.DefaultTag";

   private static final String KEY_TYPE = "type";

   private NotificationManager notificationManager;

   public CoreNotificationCreator(Context context) {
       notificationManager = ((NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE));
   }

   public void showNotification(Context context, RemoteMessage remoteMessage) {
       String notificationType = getNotificationType(remoteMessage);
       CoreNotification notification = factoryMethod(notificationType, remoteMessage);
       if (notification != null) {
           NotificationCompat.Builder builder = builderFromPushNotification(context, notification);
           notify(builder);
       }
   }

   private String getNotificationType(RemoteMessage remoteMessage) {
       Map data = remoteMessage.getData();
       if (data.containsKey(KEY_TYPE)) {
           return data.get(KEY_TYPE);
       }
       return "";
   }

   @Nullable
   protected abstract CoreNotification factoryMethod(String messageType, RemoteMessage remoteMessage);

   private final static int DEFAULT_NOTIFICATION_ID = 15;

   private static final
   @DrawableRes
   int SMALL_ICON_RES_ID = R.drawable.ic_notification_small;

   protected NotificationCompat.Builder builderFromPushNotification(Context context, CoreNotification notification) {
       Bitmap largeIcon = BitmapFactory.decodeResource(context.getResources(), notification.largeIcon());
       NotificationCompat.Builder builder = new NotificationCompat.Builder(context)
               .setSmallIcon(SMALL_ICON_RES_ID)
               .setAutoCancel(true)
               .setDefaults(NotificationCompat.DEFAULT_ALL)
               .setContentTitle(notification.getTitle())
               .setContentText(notification.getContent())
               .setLargeIcon(largeIcon);
       builder.getExtras().putString(KEY_NOTIFICATION_TAG, notification.getNotificationTag());
       builder.setContentIntent(notification.configurePendingIntent(context));
       return builder;
   }

   private void notify(@NonNull NotificationCompat.Builder builder) {
       final String notificationTag = getNotificationTag(builder);
       notificationManager.cancel(notificationTag, DEFAULT_NOTIFICATION_ID);
       notificationManager.notify(notificationTag, DEFAULT_NOTIFICATION_ID, builder.build());
   }

   private String getNotificationTag(NotificationCompat.Builder builder) {
       Bundle extras = builder.getExtras();
       if (extras.containsKey(KEY_NOTIFICATION_TAG)) {
           return extras.getString(KEY_NOTIFICATION_TAG);
       } else {
           return DEFAULT_TAG;
       }
   }
}

showNotification() public . . .


Android


  public void showNotification(Context context, RemoteMessage remoteMessage) {
       String notificationType = getNotificationType(remoteMessage);
       CoreNotification notification = factoryMethod(notificationType, remoteMessage);
       if (notification != null) {
           NotificationCompat.Builder builder = builderFromPushNotification(context, notification);
           notify(builder);
       }
   }

showNotification() , remoteMessage. remoteMessage , CoreNotification.


factoryMethod() @Nullable , , . . .


, , , . : NotificationCreator.



public class TeacherNotificationCreator extends CoreNotificationCreator {

   public TeacherNotificationCreator(Context context) {
       super(context);
   }

   @Nullable
   @Override
   protected CoreNotification factoryMethod(String messageType, RemoteMessage remoteMessage) {
       switch (messageType) {
           case NewChildNotification.TYPE:
               return new NewChildNotification(remoteMessage);
           case BirthdayNotification.TYPE:
               return new BirthdayNotification(remoteMessage);
       }
       return null;
   }
}

messageType , CoreNotification .


, :


class NewChildNotification extends CoreNotification {

   static final String TYPE = "add_child";

   private static final String KEY_CHILD_NAME = "child_name";

   NewChildNotification(RemoteMessage remoteMessage) {
       super(remoteMessage);
   }

   @Override
   protected PendingIntent configurePendingIntent(Context context) {
       Intent intent = new Intent(context, MainActivity.class)
               .setPackage(context.getApplicationContext().getPackageName())
               .setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
       intent.putExtra(CoreNotification.KEY_FROM_PUSH, getAddChildInfo());
       return PendingIntent.getActivity(context, 1, intent, PendingIntent.FLAG_UPDATE_CURRENT);
   }

   @Override
   protected int largeIcon() {
       return R.drawable.ic_add_child;
   }

   @Override
   protected String getNotificationTag() {
       return getClass().getName() + getChildName();
   }

   private String getChildName() {
       Map data = remoteMessage.getData();
       if (data.containsKey(KEY_CHILD_NAME)) {
           return data.get(KEY_CHILD_NAME);
       }
       return STRING_EMPTY;
   }

   private String getAddChildInfo() {
       return "New child " + getChildName() + " was added to your group";
   }
}

configurePendingIntent() , push-


:


public class ParentNotificationCreator extends CoreNotificationCreator {

   public ParentNotificationCreator(Context context) {
       super(context);
   }

   @Nullable
   @Override
   protected CoreNotification factoryMethod(String messageType, RemoteMessage remoteMessage) {
       switch (messageType) {
           case PickUpNotification.TYPE: 
               return new PickUpNotification(remoteMessage);
           case GradeNotification.TYPE:
               return new GradeNotification(remoteMessage);
           default:
               return null;
       }
   }
}

.


. , Firebase. , Android Studio : Tools -> Firebase -> Cloud Messaging Gradle- firebase . FCM Android-



CoreNotificationCreator ( ) + , CoreNotification. . CoreNotification , - , . CoreNotification :


  • largeIcon ;
  • Intent` activity ;
  • getNotificationTag() , .

, , , , , , push- .



" " , "" Android-




. , . . , , Android- , .


. . !

Original source: habrahabr.ru (comments, light).

https://habrahabr.ru/post/332006/


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