I want to implement an app that looks like this:
https://www.youtube.com/watch?v=GPntMT_8UuQ
Basically - Two mobiles that my app open and one mobile sends bits like 01010101
and in the second mobile I received this sequence...
I read about sinus function to send sound but unsuccessful.
I want to implement in java lang the app,
the cover of the app is ready, but I don't know how to continue that I
click "Transfer".
Is there an idea where to start?
Related
The cellphone network provider in my area has a few functions you can do by dialing what I am calling the "star commands", that is you type and asterix(*) followed by the code of your command and press send and you are able to query account balances and a whole slew of other functions that the cell network has made available. I think this is common place among all cell networks.
I want to be able to make these commands and read the responses, issue other commands based on those responses and so on, all from within my android app.
Does anyone has experience doing this?
Those commands are known as USSD commands. You can use TelephonyManager.sendUssdRequest to send a USSD command, providing a callback to receive the result form the mobile network.
Bear in mind Android only introduced support for invoking them programmatically in API 26 (Android 8.0). If you need that functionality on any earlier Android, you'll need to do something hacky, writing some code that automates pressing buttons of the system UI
I’m not sure if this is the right place to ask this question as this is my first question, but I have the following scenario and I need advice and guidance. Or, if this is the wrong place to ask this question, where should I post it?
I want to create a Java Bluetooth proxy application that will sit in the middle of an Android app and a bluetooth IoT device. I want this Java application to see all the traffic that is being exchanged between the app and the IoT device. I have found similar applications called btproxy and btlejuice, but I want to implement it within Java and I want it to be really simple. I have looked into Bluecove but I'm not having much luck. I’m guessing I will need 2 different machines or VM’s so I can use 2 different bluetooth adapters.
Basically, when you connect the Android app to the computer/VM, the data will be logged and it will be sent to the IoT device. The IoT device will then process it, and send its data back to the Android app via the computer/VM. I’m guessing this relies heavily on the UUID of the app and the device?
Is this possible to achieve, if so, have I got the right topology for this scenario and what would be the best Java API to use and is there any code that will help?
im a new programmer android and i want make an app that users can record the voice and send that then the voice save on my host. for example in Telegram app you can record voice and send that.what shall i do?
As you said that you are a beginner you have to do small projects like making calculator, small blog based app or i do not know parsing JSON , try google maps play with XMLs.
nobody will send you the source code of the app that you need it includes a lot of minor staff that you have to learn step by step..
Best regards.
I would like to develop a application that when used between two phone we can send exchange data(like e-visiting card). I intend to develop it for all smart phones even those without NFC. I am just a budding developer and would like to have some references about the possibilities of such an app. i have seen BUMP but i do not intend to maintain any server and would like to create a temporary network between the two phones and terminate it after the transfer. So is there any possibility in developing such an app?
Thanks in advance
Depends on the size of the data, but one possibility that comes to mind is the use of QR codes.
http://en.wikipedia.org/wiki/QR_code
You could try using a library like zxing (https://code.google.com/p/zxing/) to generate the qr codes.
Basically the phone wanting to send the data generates a qr code representation than the phone wanting to read the data reads the qr code with its camera and translates back to the original data.
I think you should try to use bluetoolth or local area network.
I pefer LAN.
In your app , you can set one app as server, another app as client.
make a socket connection and send your data.
I have a local windows app written in java, kind of crm.
Employees register events, like customer future calls, visits, meetings, etc.
I would like to pass these events from windows app to their iphones, so they see the reminder. The information should be registered in windows app, not on the iphone.
Is it possible somehow? I would like to avoid writing and app on iphone.
Is this possible to access address book in similar way? Let's say that Mr A is account manager for 30 customers. I would like to sync their contacts data stored in windows app with his iphone.
Is this possible in the way that it is windows app which synchronizes the data, not the app on iphone?
Thanks in advance
Brgs
Norbert
If I understand correctly, you are wanting to interact with an iPhone from your Windows PC, without having to create an app for the iPhone? If this is the case, I don;t know that this is possible.
To send an alert to an iPhone, there is the ability to send a Push Notification from an external source (such as your Windows PC/app) onto an iPhone. This is what happens in your mail apps on your iPhone - when you get an email on your email server, it sends a Push Notification to your iPhone telling it that there is a new email to read. However, to support Push Notifications, you need to have an app on the iPhone that knows what to do with it. In other words, you will still need an app on the iPhone so that when it receives a Push Notification from your Windows app, it knows that it should display a message to the iPhone user.
As far as I know, there isn't any way to retrieve information from an iPhone from an external source without having an app on the phone. This would be a pretty bad security concern if it were possible.
Accessing or syncing contacts will also need an app on the iPhone that can interact with the contacts and send them back-forth to your windows app.
You may be able to interact with contacts on an iPhone if you have it plugged in via USB. The USB provides a direct connection to the phone, so if you wrote the write Windows socket code then you should be able to talk to the iPhone over the USB and perform some tasks on there. However, I'm not sure whether you can interact with Contacts and other phone information - it is probable that you could only interact with files stored on the phone such as music and videos?
Don't be scared to write an app to do what you want - especially for alerting the user, it is a pretty simple app to write, as it doesn't need to do much processing, doesn't need to have any user interface at all, and all the Push Notification support is already built in to standard iOS libraries.
what you could do if your windows app allows you to is to add those events to outlook calendar and then use the google sync to push those events to a google calendar which is then added in the user iphone. the reminder would then be a iphone calendar reminder. no security leak but little control on the iphone side about reminders.