Mobile Discussion Boards

Re: Looking for telephone numbers in a hex dump

Richard MacCutchan28-Nov-20 6:10

28-Nov-20 6:10

If you know the first digit in the number then search for that number's hex value. Then try the next character to see if it is the second number, and so on. The hex value for the numbers are:

Re: Looking for telephone numbers in a hex dump

Jan Wächter14-Jan-21 5:51

Jan Wächter

14-Jan-21 5:51

I am also looking for help in solving this problem

modified 14-Jan-21 11:06am.

Building first mobile test app using Microsoft Windows 10 and Visual Studio 2019

Bo Vistisen10-Nov-20 3:50

Bo Vistisen

10-Nov-20 3:50

Hi,

I want to try out Xamarin to build my first sample app using VS and C#.
But I obvious ran into problems with my develop environment.
I can’t start the most basic setup.
This may interest some of you. Perhaps you can comment my questions.
This should only require up to date hardware and software.

Here is what I did:
I am working on a standard hardware notebook (HP 255 G7) with an AMD Ryzen3 cpu and Radeon graphics using Microsoft software Windows 10 Home version 2004. I normally only create asp.net apps, so I needed to extended my Microsoft software Visual Studio 2019 16.7.7 with mobile Xamarin.Forms for development with .NET.

I then picked a video series from Microsoft Developer Network channel9.msdn.com – Xamarin 101 with 11 parts to help me enter this new world.

First I needed to set the settings of the Android SDK Manager. I selected Androit 8.0 and 9.0.
Then I needed to setup an Android device. This is the emulator for an Android mobile working with the VS during development. Nice, all software environment.

Troubles started when I had to pick the cpu of the android device or of the emulating pc? X86 or AMD v8a?
I kept the Android Pie 9.0 – API 28 for a x86 (default) setting and choose to edit the Android 8 to an amd v8a thereby forcing the operating system to change to Nougat 7.1 – API 25.??
Stepped back and installed the Android Nougat 7.1 with the SDK Manager.

Let me now just try the two emulators out by pressing the START button.

• The Android Pie 9.0 (x86) pop up with:
Hyper-V is not configured. Turn on “Hyper-V” feature to switch to the Native Hypervisor and accelerate your emulator.
Hmm..? I tried: Run Anyway, now that it is an option. It displays, but says: Pixel Launcher isn’t responding.
Is it good or bad? I guess it is not quite ok.

• The Nougat 7.1 (amd v8a) pop up with:
Could no start emulator using HOST GPU Mode. Please check if you can update video driver. If it doesn’t help, try to edit the AVD and set “hw.gpu.mode=off”. Then another form from Android Emulator tell you that the emulator has closed due to an internal error. AMD is found but no Vulkan driver found. And it wants to file a report to ? MS perhaps? Will it help??

Well, lets check out if everything is working by deploy emulator Android 9.0 with the blank project solution (part 4 in the video).

A Performance Warning (Intel) pops up: pixel_2_pie_9_0_-_api_28 will run unaccelerated.
This machine does not have an Intel processor, which is required to accelerate the Android emulator. The emulator performance will be impacted. We recommend to use a physical Android device for development.
I guess the choice of cpu was for the pc, but it is just a recommendation. Cancel or Start Anyway?
Lets try and continue. Emulator pop up immediately, but after a couple of minutes it says that there is no reply and the system keeps running in the background. How to break?

Lately there has been much talk about Intellectual Property theft. This can not be the case here, I am not impressed.

Can it be so difficult to build a compiler framework for today’s smart phone?

I just wanted to try and create a test app for my Samsung Galaxy Tab A (2016) Android 8.1. Maybe later try it out on my iPhone 6 iOS 12.4.8. Is that too much to ask?

wifi Windows mobile 5

rexgrip12-Oct-20 5:59

rexgrip

12-Oct-20 5:59

Hello

I have an HP IPAQ rx1950

I would like to send a variable " char [] = 'L'; " by wifi "TCP protocol socket" from the ipaq to the pc with a small C # program for windows mobile 5 on visual studio 5.

Could you derive me on class static to make this project successful?

I am a beginner on visual studio

Thank you for your help.

Re: wifi Windows mobile 5

ZurdoDev12-Oct-20 9:55

ZurdoDev

12-Oct-20 9:55

rexgrip wrote:
windows mobile 5 on visual studio 5

Is this on windows 3.1? I don't even remember a Visual Studio version 5.

Social Media - A platform that makes it easier for the crazies to find each other.

Everyone is born right handed. Only the strongest overcome it.
Fight for left-handed rights and hand equality.

Re: wifi Windows mobile 5

Richard Deeming12-Oct-20 22:47

Richard Deeming

12-Oct-20 22:47

The one before v6 was "Visual Studio 97", so I suspect it would be Windows 95. Smile | :)

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Re: wifi Windows mobile 5

rexgrip13-Oct-20 2:45

rexgrip

13-Oct-20 2:45

sorry,visual studio 2005 for pc and for hp ipaq rx1950 windows mobile 5

Re: wifi Windows mobile 5

rexgrip15-Oct-20 3:23

rexgrip

15-Oct-20 3:23

no help

How Much Does It Cost to Design an App?

MaryDes3-Sep-20 2:56

MaryDes

3-Sep-20 2:56

I recently started freelancing. I have a portfolio with several works from my college. Some projects were compelling. On the stock exchanges, clients offer not suitable pay. Maybe there are some fresh UI / UX designers here. What determines the cost of mobile app design? Laugh | :laugh:

Re: How Much Does It Cost to Design an App?

Richard MacCutchan3-Sep-20 2:57

Richard MacCutchan

3-Sep-20 2:57

All sorts of things. But this forum is really for technical questions.

Re: How Much Does It Cost to Design an App?

Angelina Brown28-Sep-20 22:28

Angelina Brown

28-Sep-20 22:28

I too have the same query. Looking forward to the answer.

Re: How Much Does It Cost to Design an App?

Richard MacCutchan28-Sep-20 22:35

Richard MacCutchan

28-Sep-20 22:35

Don't hold your breath.

Re: How Much Does It Cost to Design an App?

Randor 29-Sep-20 0:04

Randor

29-Sep-20 0:04

Richard MacCutchan wrote:
Don't hold your breath.

Pretty sure that it doesn't have any breath[^].

Re: How Much Does It Cost to Design an App?

Richard MacCutchan29-Sep-20 0:06

Richard MacCutchan

29-Sep-20 0:06

Re: How Much Does It Cost to Design an App?

Akshay Nanjunda8-Sep-20 3:40

Akshay Nanjunda

8-Sep-20 3:40

To develop an app the cost depands on the platform resource time involved along with the size of the team

Re: How Much Does It Cost to Design an App?

Mycroft Holmes29-Sep-20 13:02

Mycroft Holmes

29-Sep-20 13:02

There is no definitive answer to that question. Every projects requirements would need to be assessed and costed.

You could break it down to the number of views needed, database interactions and service interactions and then cost each one, then the general rule used to be to double it and double it again. This will then price you completely out of the market.

Never underestimate the power of human stupidity -
RAH
I'm old. I know stuff - JSOP

Re: How Much Does It Cost to Design an App?

MaryDes1-Oct-20 5:09

MaryDes

1-Oct-20 5:09

Thanks) It's good advise

Re: How Much Does It Cost to Design an App?

Millie Jack12-Oct-20 4:48

Millie Jack

12-Oct-20 4:48

It depends on what type of design you want for mobile app development. Different mobile app design and development companies charge differently based on the design complexity.

Re: How Much Does It Cost to Design an App?

Member 150117994-Dec-20 0:43

Member 15011799

4-Dec-20 0:43

Overall, the development cost of creating a basic app lies in the range of $20-30K. But you can minimize the costs by prioritizing features to include into your mobile app Minimum viable product.

If we have a closer look at the pricing range, we'll see that it's logically more expensive to build a complex app that a simple one. This is mainly because the estimated time in hours is less with a simple application. 
A simple app doesn't include API integration and back-end. It consists of basic UI component and simple features like social login. The total development time starts from 400+ hours

Moderate apps, on the other hand, include custom UI/UX features, build-in payment gateway as well as API integration and back-end server. Naturally, it takes longer to build such apps - from 500-800+ hours.

Finally, complex applications feature multi-language support, 3rd-party integrations as well as custom animations and sophisticated back-end. UI/UX design is naturally customized. As for the working hours, it takes somewhere 800-1500 hours to create such apps.

Beside the app's complexity, the hourly programmer rate is the key component that comprises the cost of developing a mobile app. Hourly mobile app developer salary varies across the globe, with the USA and Canada having the highest hourly wages.

Re: How Much Does It Cost to Design an App?

DonutAtwork.com30-Dec-20 0:05

DonutAtwork.com

30-Dec-20 0:05

how about try glideapps or quickbase? There are also lots of no-code and low-code platforms.

Re: How Much Does It Cost to Design an App?

Member 1573184013-Sep-22 22:51

Member 15731840

13-Sep-22 22:51

Use this formula for the cost calculation: hourly rate х number of hours spent = app design cost.

For instance, if you need UI/UX app design close to Uber's and your designer charges $50 per hour x 246h (max design time) = $12,300 (UI/UX design of iOS and Android apps).

You can read this guide about the https://www.cleveroad.com/blog/how-much-does-it-cost-to-design-a-mobile-app/](https://www.cleveroad.com/blog/how-much-does-it-cost-to-design-a-mobile-app/)">cost of designing an app. Much depends on the region and application design requirements.

Xamarin Forms Async Call Never Returns

Kevin Marois31-Aug-20 9:52

Kevin Marois

31-Aug-20 9:52

I'm trying to learn to call an Asp.Net Web API from a Xamarin Forms app. I'm testing my app using my phone plugged into my Dev PC running from VS 2019.

Here's my code so far:

private void Button_Clicked(object sender, EventArgs e)
{
    CustomerEntity customer = Test(1).Result;
}
public async Task<CustomerEntity> Test(int id)
{
    var url = "https:"  + "//localhost:44302/api/Customer/Get?Id=1";
    using (var client = new HttpClient())
    {
        client.BaseAddress = new Uri(url);
        client.DefaultRequestHeaders.Accept.Clear();
        client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

        var response = await client.GetAsync(url); // Nothing happens after this!!

        CustomerEntity cust = JsonConvert.DeserializeObject<CustomerEntity>(await response.Content.ReadAsStringAsync());

        return cust;
    }
}

I can paste the URI into a browser and get results. When I click the button on my app that calls the above, I get no response after the GetAsync.

Anyone have any idea what's going on or how to debug this?

Thanks

If it's not broken, fix it until it is.
Everything makes sense in someone's mind.
Ya can't fix stupid.

Re: Xamarin Forms Async Call Never Returns

Afzaal Ahmad Zeeshan31-Aug-20 18:33

Afzaal Ahmad Zeeshan

31-Aug-20 18:33

Quote:
var url = "https:" + "//localhost:44302/api/Customer/Get?Id=1";

Unless your Android (or the mobile device) has a local server running on the machine that can respond to a localhost:44302 request, you will not receive a response and request will likely timeout and fail.

There are several ways to connect to a localhost based website:

You have a physical Android device that you are using for testing
You are using a virtualized device for testing

If you have a physical device, then try to send the request to the host (your development machine)'s IP address with the port number; for example, change localhost:44302 to 192.168.1.17:44302 (assuming your machine's address on the same network is 192.168.1.17)

If you are using the virtualized then this gets complicated and depends on several factors; what network setting is being used, which OS you are using, does the virtualization software support host-connections, etc. etc.

Oh, and the best of these is to use an online proxy that can tunnel your Android device with the local machine; something like NgRok can help here.

ngrok - secure introspectable tunnels to localhost

The sh*t I complain about
It's like there ain't a cloud in the sky and it's raining out - Eminem
~! Firewall !~

Re: Xamarin Forms Async Call Never Returns

Kevin Marois1-Sep-20 7:12

Kevin Marois

1-Sep-20 7:12

I'm using my phone plugged into my PC.

When I paste this into the browser I get data back:

"https://localhost:44302/api/Customer/Get?Id=1"

When I paste this into the browser

"https://192.168.1.149:44302/api/Customer/Get?Id=1"

I get

Bad Request - Invalid Hostname

If it's not broken, fix it until it is.
Everything makes sense in someone's mind.
Ya can't fix stupid.

Re: Xamarin Forms Async Call Never Returns

Afzaal Ahmad Zeeshan1-Sep-20 9:50

Afzaal Ahmad Zeeshan

1-Sep-20 9:50

Quote:
I'm using my phone plugged into my PC.

I don't think that unless you also share the network via USB interface, you can access the PC's localhost.

Quote:
When I paste this into the browser I get data back:
"https://localhost:44302/api/Customer/Get?Id=1"

Because your "PC browser" has a process that is internally listening on the localhost (127.0.0.1) @ 44302. So it works.

Quote:
When I paste this into the browser
"https://192.168.1.149:44302/api/Customer/Get?Id=1"

This would "only" work if you have a machine or a process that is listening on 192.168.1.149 @ 44302. This is more likely a networking issue rather than an Android/PC problem. And, when you are on the same machine, you should always use 127.0.0.1 (aka localhost) instead of the machine's own private IP address.

Oh, one more tip, try only http:// and not the https://, or you will end up running in the SSL errors and you might assume the machine is down.

The sh*t I complain about
It's like there ain't a cloud in the sky and it's raining out - Eminem
~! Firewall !~

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