Android Discussion Boards

thank you. solved.

Super awesome

 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>

Hey back.

Fine.

What do you want us to do about that?

See if this article gives you some ideas.

"One man's wage rise is another man's price increase." - Harold Wilson

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles

Hello everybody, i would like to thank the community here and the writers of the articles here for their help in android programming,

From the first articles about Xamarin.Android here i have start learning coding with the articles of Dominic Burford - Professional Profile[^] and in the last days Eddy Vluggen (and others if im not mistaken) was really helpful.

My child is the application Simple User Feedback that you can find on Google Play, its a simple application to gather emotional feedback from your audience, it displays some images with face expressions that you click according with the input you want to give, positive or negative, or something else.

Tell me how do you find it Smile | :)

Exoskeletor wrote:
Tell me how do you find it

Hey there,

If you are sharing a free tool with the community for feedback, or just for the fun of it (obviously, no malware/spam) then I recommend you post it at Free Tools Discussion Boards and let the community know.

This part of the forum is for questions related to Android development.

Oh, congratulations on your applications! Why don't you write an "experience" article on CodeProject, I am sure everybody would enjoy a good read.

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

Hello friend, the free tolls section says that we can post tools there that are for software development, my tools are for businesses mostly, can i post it there?

Im making an application that i want to have the ability to send report emails with a frequency. daily, weekly or monthly.

Now i want those emails to be sent only if the app is running and if the user is using it (in my app you use the mobile as a kiosk, you open the app and leave it running all the time, screen will not close)

I have write this code in the MainActivity where if someone has enabled the frequently email feature, the activity will try to send the email (SendStatisticsToEmailBySchedule() will run forever and will use SendStatisticsToEmail() from time to time to send an email):

C#

public async void SendStatisticsToEmail(string subject, string address, int port, string from, string to, bool useSSL, bool saveDateSent = false, string username = "", string password = "", bool sendNowButtonUsed = false)
        {
            var fileName = System.IO.Path.Combine(
                GetString(Resource.String.Statistics_ExportAllExportPrefix,
                firstResult.ToString("MM-dd-yyyy"),
                DateTime.Today.ToString("MM-dd-yyyy")));

            var message = new MimeMessage();
            message.From.Add(new MailboxAddress(from));
            message.To.Add(new MailboxAddress(to));
            message.Subject = subject + " " + fileName;

            var statistics = new Statistics();
            var reportsForXML = statistics.ConvertRecordsForExport(MyData);
            MemoryStream stream = new MemoryStream();

            var builder = new BodyBuilder();
            var image = BitmapFactory.DecodeResource(Resources, Resource.Drawable.get_started);
            byte[] imgbyte;
            using (var bitmap = image)
            {
                var streamByte = new MemoryStream();
                bitmap.Compress(Bitmap.CompressFormat.Png, 100, streamByte);
                bitmap.Recycle();
                imgbyte = streamByte.ToArray();
            }
            var imageAttach = builder.LinkedResources.Add(@"get_started.png", imgbyte);
            imageAttach.ContentId = MimeUtils.GenerateMessageId();
            builder.HtmlBody = string.Format(@"<p align=""center""><center><img height=""150"" width=""328"" src=""cid:{0}""></center></p><p align=""center"">{1}</p><p align=""center"">{2}</p><p align=""center"">{3}</p>", new object[] { imageAttach.ContentId, GetString(Resource.String.EmailExportSettings_MessageBodyLine1), GetString(Resource.String.EmailExportSettings_MessageBodyLine2), GetString(Resource.String.EmailExportSettings_MessageBodyLine3) });

            using (System.IO.StreamWriter writer = new System.IO.StreamWriter(stream))
            {
                reportsForXML.WriteXml(writer, XmlWriteMode.WriteSchema, false);
                stream.Position = 0;
                builder.Attachments.Add(fileName, stream);
            }
            message.Body = builder.ToMessageBody();

            try
            {
                using (var client = new SmtpClient())
                {
                    // For demo-purposes, accept all SSL certificates (in case the server supports STARTTLS)
                    client.ServerCertificateValidationCallback = (s, c, h, e) => true;

                    if (useSSL)
                        await client.ConnectAsync(address, port, SecureSocketOptions.SslOnConnect);
                    else
                        await client.ConnectAsync(address, port, false);

                    // Note: only needed if the SMTP server requires authentication
                    if (!string.IsNullOrEmpty(username) && !string.IsNullOrEmpty(password))
                        client.Authenticate(username, password);

                    await client.SendAsync(message);
                    await client.DisconnectAsync(true);
                    if (saveDateSent)
                    {
                        Preferences.Set(Settings.ExportToEmailLastEmailSentKey, DateTime.Now);
                        ScheduleNextEmailForSend(DateTime.Now,
                            Preferences.Get(Settings.ExportToEmailEmailFrequencyPositionKey, Settings.ExportToEmailEmailFrequencyPositionDefault)
                            );
                    }
                    if (sendNowButtonUsed)
                        Toast.MakeText(this, GetString(Resource.String.Statistics_EmailSendSuccess), ToastLength.Long).Show();
                }
            }
            catch //(Exception exception)
            {
                if (sendNowButtonUsed)
                    Toast.MakeText(this, GetString(Resource.String.Statistics_EmailSendFailure), ToastLength.Long).Show();
            }
        }



private async void SendStatisticsToEmailBySchedule()
        {
            do
            {
                if (MyData.Count != 0)
                {
                    var currentConnectivity = Connectivity.NetworkAccess;
                    NextScheduledDateForReport = Preferences.Get(Settings.ExportToEmailNextEmailForKey, CurrentDateSettings.ExportToEmailNextEmailForDefault);

                    if (DateTime.Now > NextScheduledDateForReport)
                    {
                        if (currentConnectivity == NetworkAccess.Internet)
                        {
                            try
                            {
                                SendStatisticsToEmail(Preferences.Get(Settings.ExportToEmailSubjectKey, Settings.ExportToEmailSubjectDefault),
                                    Preferences.Get(Settings.ExportToEmailServerAddressKey, Settings.ExportToEmailServerAddressDefault),
                                    Preferences.Get(Settings.ExportToEmailPortKey, Settings.ExportToEmailPortDefault),
                                    Preferences.Get(Settings.ExportToEmailFromKey, Settings.ExportToEmailFromDefault),
                                    Preferences.Get(Settings.ExportToEmailToKey, Settings.ExportToEmailToDefault),
                                    Preferences.Get(Settings.ExportToEmailUseSSLKey, Settings.ExportToEmailUseSSLDefault),
                                    true,
                                    Preferences.Get(Settings.ExportToEmailUsernameKey, Settings.ExportToEmailUsernameDefault),
                                    Preferences.Get(Settings.ExportToEmailPasswordKey, Settings.ExportToEmailPasswordDefault)
                                );
                            }
                            catch
                            {

                            }
                        }
                    }
                }
                await Task.Delay(21600);
            } while (true);
        }



 private void ScheduleNextEmailForSend(DateTime nextScheduledEmailDate, int frequency)
    {
        nextScheduledEmailDate = DateTime.Now;
        frequency = Preferences.Get(Settings.ExportToEmailEmailFrequencyPositionKey, Settings.ExportToEmailEmailFrequencyPositionDefault);
        switch (frequency)
        {

            case 0:
                Preferences.Set(Settings.ExportToEmailNextEmailForKey, nextScheduledEmailDate.AddDays(1));
                break;
            case 1:
                Preferences.Set(Settings.ExportToEmailNextEmailForKey, nextScheduledEmailDate.AddDays(7));
                break;
            case 2:
                Preferences.Set(Settings.ExportToEmailNextEmailForKey, nextScheduledEmailDate.AddDays(30));
                break;
        }
    }

From what i have read here https://developer.android.com/guide/components/services#Choosing-service-thread if you want to run some code only while the user is using your app, you should not use a service.

Is my code efficient?

Is there any situation that will stop working or should i somehow check that it is still working?

It is really nice that you wrote the message giving Thanks to the people here in CP.

Pity is I had to kill it, due to the link. It would be considered site driving and it is not allowed.

Please write the message again without the link and it will get through.

M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpful answers is nice, but saying thanks can be even nicer.

Please I just created an admob app but after installing it on my phone it keeps showing unfortunately, app has stopped when I try opening the app

Well that's unfortunate. Have you thought of checking the logs, using the debugger ... ?

Have you debug it? have you find which line breaks your app?

I need to convert one .csv file to Crypt 5 or Crypt 12, to transfer a backup of WhatsApp to an Android phone. Which programs should I use, in your opinion? Thank you.

You have already posted this in QA:
File .csv to crypt5 or crypt12[^]

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

Hello, and thank you for you patience with me. I am knew to Android, however I have been programming LAMP and Visual Basic and C# for many years.

I am using Android Studio 3.5 and using Kotlin as the language.

I have a very simple question for many of you, however, it is vexing me. I would greatly appreciate your help.

I have created a menu in my android app. The problem I am having is, how do I select a Menu Item and go to a web page?

Here is the code I have.
From MainActivity.kt-----------------------------------------

override fun onOptionsItemSelected(item: MenuItem): Boolean {
       
        return when (item.itemId) {
            R.id.action_locate -> true
            else -> super.onOptionsItemSelected(item)
        }
        return when (item.itemId) {
            R.id.action_scanner -> true
            else -> super.onOptionsItemSelected(item)
        }
        return when (item.itemId) {
            R.id.action_qrcodescanner -> true
            else -> super.onOptionsItemSelected(item)
        }
        return when (item.itemId) {
            R.id.action_mainsite -> true
            else -> super.onOptionsItemSelected(item)
        }

------------------------------------------------------------

MenuMain.xml-------------------------------------------------

<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
tools:context="com.sdf.sdf.MainActivity">

<item
    android:id="@+id/action_locate"
    android:orderInCategory="100"
    android:title="Locate Vehicle"
    app:showAsAction="never" />
<item
    android:id="@+id/action_scanner"
    android:title="BarCode Scanner"
    android:orderInCategory="100"
    app:showAsAction="never" />
<item
    android:id="@+id/action_qrcodescanner"
    android:icon="@drawable/ic_scanner_black_24dp"
    android:orderInCategory="100"
    android:title="Q.R. Code Scanner"
    app:showAsAction="never" />
<item
    android:id="@+id/action_mainsite"
    android:icon="@android:drawable/checkbox_on_background"
    android:orderInCategory="100"
    android:title="TheSite.com"
    app:showAsAction="never" />
    
</menu>

---------------------------------------------

Please tell me if you need any other code.

I just want to know how to make a menu item go to a webpage.

Thank you.

In response to that menu item, could you do something like:

startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse( "https://www.google.com")));

"One man's wage rise is another man's price increase." - Harold Wilson

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles

Hello, I just wanted my first post here to be one that says Hello. I don't know why they say goodbye, I say Hello.

Good Beatles reference.

"One man's wage rise is another man's price increase." - Harold Wilson

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

"You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles

Hello mate, let them saying goodbyes :P

Hello

Good Day Everyone

i am doing an app and all is good. My app changes the language based on the device settings as they change. now i hit a wall when i saw dates in Traditional Chinese appeared like this

2019/12/29 下午 09:14:37

obviously when i try to search from the database i get the error that the date is not in the correct format. so since i will do this with different other languages , i want to create some universal or generic way to handle this dates. so i wrote this

public static DateTime Convert_To_System_DateTime(string input)
   {
      return DateTime.ParseExact(input, "yy/MM/dd HH:mm:ss", CultureInfo.InvariantCulture);
   }

and still i am not getting any joy.

Thanks

Vuyiswa Maseko,

Spoted in Daniweb-- Sorry to rant. I hate websites. They are just wierd. They don't behave like normal code.

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vimalsoft.com
vuyiswa[at]vimalsoft.com

A date is stored internally as a count, not as a string. It becomes a string after formatting it for a specific culture.

Are you storing your dates as a string, or a DateTime? If it is in XML, try converting everything to the ISO variants.

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]
"If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.

What is the content of the input variable?

Good Day

Since the phone was changed to Chinese Traditional , i had to specify the system date to

var finaldate = input.ToString("yyyy-MM-dd hh:mm:ss tt", CultureInfo.CreateSpecificCulture("en-US"));

and this work for the input "2019/12/29 下午 09:14:3"

Vuyiswa Maseko,

Spoted in Daniweb-- Sorry to rant. I hate websites. They are just wierd. They don't behave like normal code.

C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vimalsoft.com
vuyiswa[at]vimalsoft.com