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Smartphone Programming

Smartphones run using a variety of operating systems -- Android, iOS and Windows Mobile most commonly -- and an even wider variety of programming languages, including Objective-C, Java, Visual C#, C++ and .NET, not to mention HTML5 and JavaScript, and cross-platform frameworks such as PhoneGap.

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I know someone who publishes an iPhone app which currently has an input field for the credit card number. But, this means the user must type it in, which is error prone and slow. So, I hope to reconfigure without even any coding changes to the app.

This is the kind of device I need to use...





My question is...

Can one of these be used along with the app, on an iPhone, to get that credit card number into that field, but do so without  requiring any modifications to the app?

I see that some require a merchant account, and those will not work. The app I am describing must run and communicate with the server. It can not use an existing app to transmit the information.

All I need is a way to automate the manual key entry of the credit card #. So, can any of these readers be configured to insert the credit card # into that field?

I suppose, worst case, if the card reader inserted the CC# into a note, so it could be copied and pasted, that might be better.

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Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

I use the Maps app within my Samsung Galaxy S8 quite often.

How can I go back and view the past addresses that I have entered into the Maps app?
I have found Xamarin cross-platform, mobile device IDE
It seems to be real, working for every device type, Android, iOs ..iPhone, Windows

As introduced by this dude here

The coding is apparently done in Visual Studio? for C#   I'll need to rent the latest version, or get my client to pay rent for it.
I still have Vis Studio from mid 90's - CS 455 days  If I rent the Mac version of Windows.Visual.Studio, will that be foolish, for an app development on a MacBook?

Anyway, this is apparently a good solution for cross-platform PDA development. Is the interpreter set for Tablets, also?
Would you agree? Hackable? crashing problems?

We've had an idea in our project for a phone app that displays pics and receives a user's opinion of the pic with a sliding scale.

It would be a benefit if it could work on all phones / devices
What are the cross-platform solutions, considerations for this?


moto4g plus watsup message noise is too much. how to mute them when i type a message and send.

how to mute when i receive a message. please advise
How to run Samsung DVR from my andriod phone.
How can I resume listening to an MP3 on a Samsung Galaxy S8 cell phone at point where playback was last paused with the built in Galaxy S8 media player app?

When I later go back to resume listening where I had left off I am usually not able to resume at the point where playback left off at the point where I was last listening.

How can I resume at the point where I last left off?
Some of the Android apps (like the File manager app found here https://play.google.com/store/apps/details?id=com.alphainventor.filemanager) that I have been loading on my Samsung Galaxy S8 have been putting adds on my cell phone.

Is there any way of paying for these apps to prevent them from putting adds on my cell phone?
What is the process to list or switch through open Internet browser tabs on a Samsung Galaxy S8 cell phone?
Is there any way of switching through or "ALT-Tabbing" between open apps on a Samsung Galaxy S8 cell phone?
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[Webinar] Cloud and Mobile-First Strategy

Maybe you’ve fully adopted the cloud since the beginning. Or maybe you started with on-prem resources but are pursuing a “cloud and mobile first” strategy. Getting to that end state has its challenges. Discover how to build out a 100% cloud and mobile IT strategy in this webinar.

Boost mobile. samsung galaxy s6. android 7

When I am on a call I dont receive emails.

I would like to also browse internet when on speaker phone during phone call
google voice sms was sent to my cell phone sms
now it is only an email/gmail

how do I restore sms cell phone messages
How can I access or browse to the downloads folder on a Samsung Galaxy S8 cell phone?

I have a lot of documents in there I need to look at.
What are the steps necessary to take a screenshot on my Samsung Galaxy S8 phone that will take a picture of everything on the screen?
when i type some message to a friends  click send in watsup making sound. How to mute that sound while sending watsup messages. while receiving messages i do not hear sounds.

setting notification watsup has little circle which i can move to left and right
is left is mute or right is mute
i see 3 , 4 options there.

i tried all but still sound comes when sending messages. how to mute
please advise
I succesfully wrote my first Delphi app for smartphone (Android).
A button to click, a edit field, a label
When clicking on the button, the text in the edit field is copied in the label text : Label1.Text := 'Hello ' + Edit1.Text + ' ! ';
Also, at design time, I put "Hello" in the text property of Label1
Now at execution time (test on the PC),  clicking the button has no effect !
In debug mode, I put a break point on the statement label1.Text := ... but it never stops there
What's missing ?
Here is the code of Unit1 :

unit Unit1;
  System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants,
  FMX.Types, FMX.Controls, FMX.Forms, FMX.Graphics, FMX.Dialogs, FMX.StdCtrls,
  FMX.Controls.Presentation, FMX.Edit;
  TForm1 = class(TForm)
    Edit1: TEdit;
    Label1: TLabel;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
    { Déclarations privées }
    { Déclarations publiques }
  Form1: TForm1;
{$R *.fmx}
// {$R *.iPhone47in.fmx IOS}
procedure TForm1.Button1Click(Sender: TObject);
 Label1.Text := 'Hello ' + Edit1.Text + ' !';
I found one at a store, Samsung Galaxy Note 8, that seemed impressive. Could write notes on it just like with an ordinary pen on paper. Is this the best there is on the market, or is there any other note-taking smartphone that is much better?

Except the function to take notes just like with an ordinary pen on paper but instead on the smartphone with an electronic pen, I also want to be able to easily and quickly find any small note. So there should be possible to save each note and label each note so I can find it later using any of several search criteria.

Also useful would be to easily be able to cut parts of a note and paste somewhere else to other notes (move parts of notes to other notes).

Or would a tablet like Samsung Tab J be even better than a note-taking smartphone?
i have the above phone and the carrier is Ultra mobile which is a subset of MetroPCS.  Recently I had used up all my data, and I received a data locked error.  On calling support they said that i had to get more data, and I did exactly and said that they needed about 15 minutes to configure it.  But I now can see an incoming sms message, but when I tap on it, it disappears and does not appear at all.  Support says that the problem is my  phone.  Can the experts suggest how to fix this problem.  Thank u and regards.

I have made an Android app in Delphi which sends Sms to some phone numbers.

It works well on my phone but at one of my customer (who has Android 7 on his phone ) it works like this:
- it sends about 10-15 SMS-es without error
- then "Android error: java.lang.UnsupportedOperationException: Sms is not supported" pops up

What can cause the problem at customer's site?
Thank you very much for your help.
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One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Hi, just want to ask experience Android programmers.  Whats do I need to learn Android programming.  I have some programming experience so I believe I can relearn.  I just want to know what things do I need to start learning.

Where do I get the Android software
What IDE do I use
Can A Moto Android G5 phone be used?
Does it need to be rooted
What books or website will help me to start?

Any suggestions will be helpful.  Thank you
There are certain people who I don't need to email any longer whose email addresses appear when I am typing email addresses within the To: filed within the mail app on my Samsung Galaxy S8.

What is the process to remove these email address auto complete entries for the people who I no longer need to email?

Also is there any way of doing this while my Samsung Galaxy S8 is connected to my Windows or Mac computer? It is a lot easier to do it that way than doing this manually on my Samsung Galaxy S8 cell phone.
We are looking at providing some business related functionality on mobile. Essentially this will be to query and execute an ordeR

we have the option of having a web app that points to a web page or a more native app

Needs to be ios and android

Any benefits of web app over native
Without smart meters the data needed to deliver this information isn’t available. Once a customer has a smart meter it is possible to give this info on a smart phone.
I've got a brand new Alcatel PIXI 4g phone. If I go into contacts and add a number, then click more fields, the words more fields goes away but there's nothing else to see. I'm on Android version 6.0.

Actually, when you click more fields, it goes to a different screen, with the words USIM contact and a link back to edit contact.
We had an app created for our company a couple of years ago and now it's horribly out of date and we're getting a message off it that it needs to be updated to iOS11.  Due to a high staff turnover, who created the app has been lost and we don't have anyone to contact to get this pull off the Apple and Google stores.

Can anyone provide any guidance as to what to do in this instance - all of the information I've searched deals with developers removing their own apps but nothing about how to do it when the developer is gone.

Thanks in advance for any input on this.

Smartphone Programming

Smartphones run using a variety of operating systems -- Android, iOS and Windows Mobile most commonly -- and an even wider variety of programming languages, including Objective-C, Java, Visual C#, C++ and .NET, not to mention HTML5 and JavaScript, and cross-platform frameworks such as PhoneGap.