Android

How can we draw coordinate axis in Android programming

public void InsertUser()
{

    try
    {
        string dbstring = @"data source=xxx.xx.xx.xx,1433;initial catalog=MyDatabase;user id=XamarinUser;password=myPassword;Connect Timeout=10";
        SqlConnection Con = new SqlConnection(dbstring);
        if (Con.State == ConnectionState.Open) { Con.Close(); }
        Con.Open();
        SqlCommand cmd = new SqlCommand("INSERT INTO tblUSERS (Username, Password, Email, Active)  VALUES ('" + txtUserName.Text + "','" + password1.Text + "','" + txtEmail.Text + "',0);", Con);
        cmd.ExecuteNonQuery();
        Con.Close();
        Con = null;
        cmd = null;
        this.Dismiss();
    }
    catch (Exception)
    {

        throw new Exception("Application run into errors. Please contact us.");

    }

}

Hello my dear friends .  How can I get the geographic coordinates in which I am offline? Thank you for your reply.

hi !

I have a small win32 (18k) app that i developed years ago for my electronic hobby project. Basically, it takes the text from the screen or from a file, stores it internally in arrays and writes at regular time intervals data packets to the COM1 port(as a file). On windows and linux(using wine) on my PC i used a virtual COM port and installed a driver for a rs232 to usb adapter(ft232 chipset). I want the same on android. The win32 app was written in C, the only language i know, and i would like to port the app "as is"(no code rewriting) to android, because i have no clue of android programming at all. The search on the internet returned no results - i didn't find any solution. Is the following way possible :

General : Installing a minimal linux distro on android with usb acces/ Installing FT232 driver in the terminal

1.compiling the code for arm(32) linux/ Run it in the terminal
Or

2. Port the exe to windows rt/arm / Run the .exe with wine in the terminal ?

The linux distros in the android app(userland, andronix) are bare-bone ones and do not seem to provide usb support( when i run lsusb i get -99 code error) I've also installed visual studio 2019 (win 10 SDK) and cannot build my project because .h files are not found, even if i change the path in the project properties. If i enter the complete path in my code file they are found, but then i still have 200 error messages because things like Bool, Handle, are not defined. The original/initial application i build 10 years ago was generated by CodeBlocks on my old PC which i dont have anymore(broken,but i still have all original project files).
The project files can be found here (link temporary available for your analisys and answers): https://drive.google.com/file/d/1DTcnfRDubXJN12wzhC8KzvhW97AQn1uA/view?usp=drivesdk

Thanks.

Hello everyone.
I’ve decided to program Android in IntelliJ IDEA 2018.3 using Kotlin.
When I determine the SDK path and create the Android project, I face the "MyProject sync faild" message. Furthermore I am using JDK 8.
The errors shown to me are:

Could not find com.android.tools.build:gradle:3.1.0.
Searched in the following locations: https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.1.0/gradle-3.1.0.pom
https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.1.0/gradle-3.1.0.jar
https://jcenter.bintray.com/com/android/tools/build/gradle/3.1.0/gradle-3.1.0.pom
https://jcenter.bintray.com/com/android/tools/build/gradle/3.1.0/gradle-3.1.0.jar
Required by:
project :
Add Google Maven repository and sync project
Open File

Please help me.
Thank you.

 Hey,I want a text box that take value from other device via Bluetooth. For example,
when a person ,measures blood glucose level from a Bluetooth embedded device(Glucometer), the value should appear on that text box of android app.<pre>