Is it possible to make a app on Android such that whoever downloads this app receives a message from me weekly? I want to be the only person who can write on this message board and no one else. If this is possible, where should I start looking for tutorials about doing this sort of stuff?
You can create a RSS/Atom feed for yourself. Your android app can then just sync to this feed. Update the feed as often as you like. If you like this approach I can give more details.
yes , you can send periodic messages see this
in that SendMessage(); function is there so you have to make code for send message to recipient
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Totally new to Azure and the services it offers, I face many questions about the "Speech" service and the bots that can be created on the Microsoft platform. Currently developing an Android mobile application I'd like to realize the following behavior:
The user records a voice file from the app (using MediaRecorder), this part is ok
Once the recording is finished, this file is sent to Azure function(via an HTTP POST).
The file is translated into Text
The text is sent (step 7) to the bot which reacts accordingly by executing an HTTP request.
Scheme of the process I explained
First of all I wanted to know if this scenario is possible or if I have to use the Speech SDK on my Android application.
Moreover if this scenario is possible, how do I send the text to the chatbot? I've checked this link but it doesn't seem very relevant to me.
NB: My bot has been completely created using "Bot Framework Composer" for the moment, no code has been written, I just wanted to know if my scenario is plausible and above all possible.
Go through your steps, and I think it can be implemented. If you want to send text to bot, you can refer to this request.
Before that, you may need to start a conversation and get the conversationId.
I'm working on two seperate apps that need at some point to exchange messages, both apps share a MYSQL database, I want the first app to be able to send some data to one of the other app's users (specified by his id, email or phone number ), and this last to be able to reply to the request by accepting or rejecting with a button click.
Now, I don't know what is the best:
Something similar to chat ?Is it possible to extract the necessary data from the rest of the chat message ?
A broadcast.
A push notification.
Or something else ?
Help me please I'm a total newbie, I would use an expert opinion.
What you are describing is basically every other Chat App that exists.
I can only suggest you to read this code example to get an idea how to approach this:
Android Chat Example code
I am developing a custom chat application.
Sent messages are stored on my server using a simple POST.
A service that runs in background is responsible to check using another POST every 5 seconds if there are new messages for the current user and send a notification to the him/her.
I am a bit worried about network and CPU usages because i am aware that internet connection is used all the day.
I used that approach because i need to manipulate some data on my server code before delivery a notification to receiver.
An example is that i have some users assigned as admin. The users username is their email. When a message is sent from one of the admins i overwrite their username (so their email) with the application name before delivery the notification to the receiver.
Is this the best approach to create a custom chat application?
Dont know exactly why you used this use case, but really simple solution provides Firebase.
You can read something about that here. Basically you have to:
Create some layouts
Add listener on "send message" click, that will add message to firebase realtime database
Create FirebaseListAdapter, who will display messages to user
From database docs
all of your clients share one Realtime Database instance and
automatically receive updates with the newest data.
From my understading you dont have to check every 5 seconds if there is some message waiting. Firebase handles it for you.
For example, whenever someone "likes" your post in Facebook, you get a notification. You don't have to refresh your page to get the notification. Or whenever someone sends you a message in Whatsapp you immediately get it.
How do they implement that? Does it use Ajax to listen for database changes every second or so?
I want to build an Android application which should do something whenever the value of a remote database changes. Should I use a service to check for the database value every second and compare it to the previous value? Is this the best way to do it?
You could either setup a gcm service or use the native android service to hit your database at a fixed interval of time . GCM would be more efficient and would be recommended , if your app is an extensive real time sort of an app like a messenger or something
You should look into Google Cloud Messaging. But you will need a server to implement it.
https://developers.google.com/cloud-messaging/
I have developed an app in which i am collecting data from server through parsing. So , i want to add push notification in my app whenever the service adds new data. I have searched the web bt cldn't fnd smthn useful.
The best way is to either get a webserver with cronjob this will send information directly to your mobile ... or, to make an backgroundservice in your application.
It's not a simple thing to do, in the upcomming few days I'll be posting a tutorial on http://p-xr.com wich explains it in detail.