I am trying to get the last call duration on my xamarin.forms app. On android part I am using dependency service.I can get the call duration. How to pass the duration to shared code back?
My Implementation on Android
class Dialer : ICallerDialer
{
public void GetCallLogs()
{
string queryFilter = String.Format("{0}={1}", CallLog.Calls.Type, (int)CallType.Outgoing);
string querySorter = String.Format("{0} desc ", CallLog.Calls.Date);
ICursor queryData1 = Android.App.Application.Context.ContentResolver.Query(CallLog.Calls.ContentUri, null, queryFilter ,null, querySorter);
int number = queryData1.GetColumnIndex(CallLog.Calls.Number);
int duration1 = queryData1.GetColumnIndex(CallLog.Calls.Duration);
if (queryData1.MoveToFirst() == true)
{
String phNumber = queryData1.GetString(number);
String callDuration = queryData1.GetString(duration1);
How to pass this to Shared code back?
}
return;
}
}
My Interface
public interface ICallerDialer
{
void GetCallLogs();
}
Dependency call when button click
async void btnCall_Clicked(object sender, System.EventArgs e)
{
DependencyService.Get<ICallerDialer>().GetCallLogs();
//How to get duration here?
}
Any help is appreciated.
Just change the return type of your method to string type.
class Dialer : ICallerDialer
{
public string GetCallLogs()
{
string queryFilter = String.Format("{0}={1}", CallLog.Calls.Type, (int)CallType.Outgoing);
string querySorter = String.Format("{0} desc ", CallLog.Calls.Date);
ICursor queryData1 = Android.App.Application.Context.ContentResolver.Query(CallLog.Calls.ContentUri, null, queryFilter ,null, querySorter);
int number = queryData1.GetColumnIndex(CallLog.Calls.Number);
int duration1 = queryData1.GetColumnIndex(CallLog.Calls.Duration);
if (queryData1.MoveToFirst() == true)
{
String phNumber = queryData1.GetString(number);
String callDuration = queryData1.GetString(duration1);
return callDuration;
}
return string.Empty;
}
}
Interface
public interface ICallerDialer
{
string GetCallLogs();
}
Dependency call when button click
async void btnCall_Clicked(object sender, System.EventArgs e)
{
var duration = DependencyService.Get<ICallerDialer>().GetCallLogs();
}
Related
I would add record to my table with a form to fill out, but there is a error from ListerPF()
"Object reference not set to an instance of an object"
Here is the whole process:
await App.methode.AddNewPF(Label_NumeroNF.Text, DatePicker_Date.Date, Editor_LibelleNF.Text, Picker_TypeFrais.SelectedItem.ToString(), double.Parse(Entry_Quantite.Text), double.Parse(Entry_Tarif.Text), double.Parse(Entry_Montant.Text), double.Parse(Entry_MontantTotal.Text), CheckBox_CCEntreprise.IsChecked, int.Parse(Entry_Imputation.Text));
Navigation.PushAsync(new PostesNF());
And the code behind "AddNewPF" is:
public async Task AddNewPF(string numero , DateTime date, string libelle, string typeFrais, double quantite, double tarif, double montant, double montantTotal, bool carteCredit, int imputationCC)
{
int result = 0;
try
{
result = await connection.InsertAsync(new DB_PosteNF { Numero = numero, Date = date, Libelle = libelle, TypeFrais = typeFrais, Quantite = quantite, Tarif = tarif, Montant = montant, MontantTotal = montantTotal, CarteCredit = carteCredit, ImputationCC = imputationCC});
StatutMessage = $"{result} poste de frais ajouté : {numero} | {typeFrais} ";
}
catch (Exception ex)
{
StatutMessage = $"Impossible d'ajouter le poste de frais avec le numéro: {numero}. \nErreur : {ex.Message}";
}
}
When the "PosteNF" page appears, I have this code
protected override async void OnAppearing()
{
base.OnAppearing();
CollectionViewPF.ItemsSource = await App.methode.ListerPF();
}
the problematic code "ListerPF" is:
public async Task<List<DB_PosteNF>> ListerPF(DB_ListeNF datareceived)
{
try
{
string numero = datareceived.Numero;
//return await connection.Table<DB_PosteNF>().ToListAsync();
return await connection.Table<DB_PosteNF>().Where(x => x.Numero == numero).ToListAsync();
}
catch (Exception ex)
{
StatutMessage = $"Impossible d'afficher la liste des postes de frais. \nErreur : {ex.Message}";
}
return new List<DB_PosteNF>();
}
But when I go back to the "PostesNF" page, the registered data is not displayed. Thanks for your help !
Per your code snippets, the model is DB_PosteNF with 10 properties.The key is that when you retrieve the records from the data table, I think you need a ObservableCollection<DB_PosteNF> to receive these entities that read from the database.Below is the code snippets for your reference:
First, define a UserCollection using ObservableCollection
public ObservableCollection<User> UserCollection { get; set; }
Then, in OnAppearing method:
protected override async void OnAppearing()
{
base.OnAppearing();
UserDB db = await UserDB.Instance;
List<User> a = await db.GetUserAsync();
UserCollection = new ObservableCollection<User>(a);
userinfodata.ItemsSource = UserCollection;
}
PS: In my case, the mode is User.
I am doing a quiz game in Xaramin. forms. and for the score function. if the user got a correct answer, I want the score will add 1.but in my case even the give the correct answer, the score is not adding.
I am also trying to bind to the "score" variable to a label. I want to know if i put a correct code or not.
Button
private void submit_Clicked(object sender, EventArgs e)
{
string answer = this.answer.Text;
string canswer = "correct";
if (answer != null)
{
string ranswer = answer.Replace(" ", string.Empty);
if (ranswer.ToLower() == canswer)
{
DisplayAlert("GoodJob", "You got the correct answer", "OK");
bindingModel b = new bindingModel();
b.score++;
(sender as Button).IsEnabled = false;
}
else
{
DisplayAlert("Unfortunately", "Your answer is wrong", "OK");
(sender as Button).IsEnabled = false;
}
}
}
ViewModel
public class bindingModel : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
public int displayScore => Score;
public int score = 0;
void OnPropertyChanged(int score)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(score.ToString()));
}
public int Score
{
get => score;
set
{
if (score != value)
{
score = value;
OnPropertyChanged(score);
}
}
}
}
Model
<Label Text="{Binding Score}"/>
in your page constructor, keep a reference to your VM
bindingModel VM;
// this is your constructor, the name will match your page name
public MyPage()
{
InitializeComponent();
this.BindingContext = VM = new bindingModel();
...
}
then in your event handler, you do NOT need to create a new bindingModel
// update the Count on the VM
VM.Count++;
Answer
There's two things broken here:
You are re-initializing your ViewModel instead of referencing the same instance
You are passing the wrong value into PropertyChangedEventArgs
1. Referencing the View Model
You are re-initializing the ViewModel every time by calling bindingModel b = new bindingModel();
Lets initialize the ViewModel once, store it as a field, set it as the BindingContext for our ContentPage, and reference that field in submit_Clicked
public partial class QuizPage : ContentPage
{
readonly bindingModel _bindingModel;
public QuizPage()
{
_bindingModel = new bindingModel();
BindingContext = _bindingModel;
}
private async void submit_Clicked(object sender, EventArgs e)
{
string answer = this.answer.Text;
string canswer = "correct";
Button button = (Button)sender;
if (answer != null)
{
string ranswer = answer.Replace(" ", string.Empty);
if (ranswer.ToLower() == canswer)
{
await DisplayAlert("GoodJob", "You got the correct answer", "OK");
_bindingModel.score++;
button.IsEnabled = false;
}
else
{
await DisplayAlert("Unfortunately", "Your answer is wrong", "OK");
button.IsEnabled = false;
}
}
}
}
2. PropertyChangedEventArgs
You need to pass in the name of the property to PropertyChangedEventArgs.
They way PropertyChanged works is that it announces the name of the property that has changed. In this case, it needs to broadcast that the Score property has changed.
Let's use nameof(Score) to pass in the string "Score" to PropertyChangedEventArgs:
void OnScorePropertyChanged()
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(displayScore)));
}
public int Score
{
get => score;
set
{
if (score != value)
{
score = value;
OnScorePropertyChanged();
}
}
}
ive got some code that works very well with picocli:
#Command(name = "parse", sortOptions = false, description = "parse input files and write to database")
class CommandLineArgumentParser {
#Option(names = { "-h", "--help" }, usageHelp = true, description = "display this message")
private boolean helpRequested = false;
#Option(names = { "-s", "--startDate"}, description = "First day at which to parse data",
converter = GermanDateConverter.class, paramLabel = "dd.MM.yyyy")
public LocalDate start;
#Option(names = { "-e", "--endDate"}, description = "Last day (inclusive) at which to stop parsing",
converter = GermanDateConverter.class, paramLabel = "dd.MM.yyyy")
public LocalDate end;
private static class GermanDateConverter implements ITypeConverter<LocalDate> {
#Override
public LocalDate convert(String value) throws Exception {
LocalDate result = null;
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd.MM.yyyy");
result = LocalDate.parse(value, formatter);
if (result.getYear() < 1900) {
throw new IllegalArgumentException("year should be after 1900");
}
return result;
}
}
#SpringBootApplication
public class Application implements CommandLineRunner {
public void run(String... args) throws Exception {
CommandLineArgumentParser commandlineparser = new CommandLineArgumentParser();
CommandLine commandLine = new CommandLine(commandlineparser);
try {
commandLine.parseArgs(args);
} catch (MissingParameterException e) {
System.out.println(e);
System.out.println();
CommandLine.usage(CommandLineArgumentParser.class, System.out);
System.exit(1);
} catch (ParameterException e) {
System.out.println(e);
System.out.println();
CommandLine.usage(CommandLineArgumentParser.class, System.out);
System.exit(1);
}
if (commandLine.isUsageHelpRequested()) {
commandLine.usage(System.out);
return;
} else if (commandLine.isVersionHelpRequested()) {
commandLine.printVersionHelp(System.out);
return;
}
if (commandlineparser.start == null) {
log.warn("no start date specified, using: 01.01.2005");
commandlineparser.start = LocalDate.of(2005, 01, 01);
}
if (commandlineparser.end == null) {
LocalDate timePoint = LocalDate.now();
log.warn("no end date specified, using today: " + timePoint.toString());
commandlineparser.end = timePoint;
}
}
but i did not find a simple example that shows multiple commands used, for example this one:
https://github.com/remkop/picocli/blob/master/src/test/java/picocli/Demo.java
does not compile:
int exitCode = new CommandLine(new Demo()).execute(args);
The method execute(CommandLine, List<Object>) in the type CommandLine is not applicable for the arguments (String[])
could somebody please post a example on howto use multiple commands?
I suspect you’re using an older version of the library. The execute(String []) : int method was introduced in picocli 4.0.
Upgrading and using the execute method instead of the parseArgs method will allow you to remove a lot of boilerplate code from the application: handling requests for usage/version help and dealing with invalid input is done automatically with the execute method.
Your commands should implement Runnable or Callable, and this is where the business logic of each command lives.
Modifying your example and giving it a subcommand:
#Command(name = "parse", sortOptions = false,
mixinStandardHelpOptions = true, version = “1.0”,
description = "parse input files and write to database",
subcommands = MySubcommand.class)
class CommandLineArgumentParser implements Callable<Integer> {
#Option(names = { "-s", "--startDate"}, description = "First day at which to parse data",
converter = GermanDateConverter.class, paramLabel = "dd.MM.yyyy")
public LocalDate start;
#Option(names = { "-e", "--endDate"}, description = "Last day (inclusive) at which to stop parsing",
converter = GermanDateConverter.class, paramLabel = "dd.MM.yyyy")
public LocalDate end;
private static class GermanDateConverter implements ITypeConverter<LocalDate> {
#Override
public LocalDate convert(String value) throws Exception {
LocalDate result = null;
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd.MM.yyyy");
result = LocalDate.parse(value, formatter);
if (result.getYear() < 1900) {
throw new IllegalArgumentException("year should be after 1900");
}
return result;
}
}
#Override
public Integer call() {
if (start == null) {
log.warn("no start date specified, using: 01.01.2005");
start = LocalDate.of(2005, 01, 01);
}
if (end == null) {
LocalDate timePoint = LocalDate.now();
log.warn("no end date specified, using today: " + timePoint.toString());
end = timePoint;
}
// more business logic here ...
// add finally return an exit code
int exitCode = ok ? 0 : 1;
return exitCode;
}
}
#Command(name = "foo")
class MySubcommand implements Callable<Integer> {
#Override
public Integer call() {
System.out.println("hi");
return 0;
}
}
#SpringBootApplication
public class Application implements CommandLineRunner {
public void run(String... args) throws Exception {
int exitCode = new CommandLine(
CommandLineArgumentParser.class,
new picocli.spring.PicocliSpringFactory())
.execute(args);
System.exit(exitCode);
}
}
Note that when using Spring in combination with picocli subcommands, you need to call the CommandLine constructor with a picocli.spring.PicocliSpringFactory.
For a more complete Spring example, see the picocli-spring-boot-starter README.
The Custom Pipeline component developed reads the incoming stream to a folder and pass only some meta data through the MessageBox.I am using the one already availaible in Code Project
using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.BizTalk.Message.Interop;
using Microsoft.BizTalk.Component.Interop;
using System.IO;
namespace SendLargeFilesDecoder
{
[ComponentCategory(CategoryTypes.CATID_PipelineComponent)]
[ComponentCategory(CategoryTypes.CATID_Decoder)]
[System.Runtime.InteropServices.Guid("53fd04d5-8337-42c2-99eb-32ac96d1105a")]
public class SendLargeFileDecoder : IBaseComponent,
IComponentUI,
IComponent,
IPersistPropertyBag
{
#region IBaseComponent
private const string _description = "Pipeline component used to save large files to disk";
private const string _name = "SendLargeFileDecoded";
private const string _version = "1.0.0.0";
public string Description
{
get { return _description; }
}
public string Name
{
get { return _name; }
}
public string Version
{
get { return _version; }
}
#endregion
#region IComponentUI
private IntPtr _icon = new IntPtr();
public IntPtr Icon
{
get { return _icon; }
}
public System.Collections.IEnumerator Validate(object projectSystem)
{
return null;
}
#endregion
#region IComponent
public IBaseMessage Execute(IPipelineContext pContext, IBaseMessage pInMsg)
{
if (_largeFileLocation == null || _largeFileLocation.Length == 0)
_largeFileLocation = Path.GetTempPath();
if (_thresholdSize == null || _thresholdSize == 0)
_thresholdSize = 4096;
if (pInMsg.BodyPart.GetOriginalDataStream().Length > _thresholdSize)
{
Stream originalStream = pInMsg.BodyPart.GetOriginalDataStream();
string srcFileName = pInMsg.Context.Read("ReceivedFileName", "http://schemas.microsoft.com/BizTalk/2003/file-properties").ToString();
string largeFilePath = _largeFileLocation + System.IO.Path.GetFileName(srcFileName);
FileStream fs = new FileStream(largeFilePath, FileMode.Create);
// Write message to disk
byte[] buffer = new byte[1];
int bytesRead = originalStream.Read(buffer, 0, buffer.Length);
while (bytesRead != 0)
{
fs.Flush();
fs.Write(buffer, 0, buffer.Length);
bytesRead = originalStream.Read(buffer, 0, buffer.Length);
}
fs.Flush();
fs.Close();
// Create a small xml file
string xmlInfo = "<MsgInfo xmlns='http://SendLargeFiles'><LargeFilePath>" + largeFilePath + "</LargeFilePath></MsgInfo>";
byte[] byteArray = System.Text.Encoding.UTF8.GetBytes(xmlInfo);
MemoryStream ms = new MemoryStream(byteArray);
pInMsg.BodyPart.Data = ms;
}
return pInMsg;
}
#endregion
#region IPersistPropertyBag
private string _largeFileLocation;
private int _thresholdSize;
public string LargeFileLocation
{
get { return _largeFileLocation; }
set { _largeFileLocation = value; }
}
public int ThresholdSize
{
get { return _thresholdSize; }
set { _thresholdSize = value; }
}
public void GetClassID(out Guid classID)
{
classID = new Guid("CA47347C-010C-4B21-BFCB-22F153FA141F");
}
public void InitNew()
{
}
public void Load(IPropertyBag propertyBag, int errorLog)
{
object val1 = null;
object val2 = null;
try
{
propertyBag.Read("LargeFileLocation", out val1, 0);
propertyBag.Read("ThresholdSize", out val2, 0);
}
catch (ArgumentException)
{
}
catch (Exception ex)
{
throw new ApplicationException("Error reading PropertyBag: " + ex.Message);
}
if (val1 != null)
_largeFileLocation = (string)val1;
if (val2 != null)
_thresholdSize = (int)val2;
}
public void Save(IPropertyBag propertyBag, bool clearDirty, bool saveAllProperties)
{
object val1 = (object)_largeFileLocation;
propertyBag.Write("LargeFileLocation", ref val1);
object val2 = (object)_thresholdSize;
propertyBag.Write("ThresholdSize", ref val2);
}
#endregion
}
}
The issue here is the LargeFileLocation is configurable in the receive pipeline. If I give a location for the first time for example E:\ABC\ the files are sent to the location.
But if I change the location to E:\DEF\ the files are still being sent to the previous location E:\ABC. I tried to create a new biztalk application deleting the old one but still I get the files dropped in to the old location E:\ABC\ not sure why.
Most likely the issue is with respect to Property definition of LargeFileLocation and its implementation and usage in IPersistPropertyBag interfaces. You can try following things:
Check if you have added E:\ABC path in Pipeline at design time. If
yes remove it from there and set in Admin console for first time
also and see how it behaves, my feeling is it will take temp path
location.
Change the Properties and IPersistPropertyBag implementation to use property with declaration such as public string LargeFileName {get;set;} i.e. no local variables _largeFileName.
Have you deleted the dll in %BizTalkFolder%\Pipeline Components\ ?
To refresh the pipeline component, you need delete the old dll file/remove the item in VS toolbox. then restart the VS, deploy it again.
and for this LargeFileLocation , I suggest you make it as a property so you can config it.
I have this code below. Gets data and sets data property to the values gathered.
public struct TrblShootData
{
public List<string> Logins;
public IEnumerable<Hieracrhy> Hierarchy;
public IEnumerable<EmployeeTeam> EmpTeam;
}
public TrblShootData TroubleShootData
{
get;
private set;
}
class DataGetter
{
public void GetData(string FirstName, string LastName, string Login, string Email, bool isFirstName, bool isLastName, bool isLogin, bool isEmail)
{
List<string> logins = null;
IEnumerable<Hieracrhy> hier = null;
IEnumerable<EmployeeTeam> tmemp = null;
TrblShootData tsData = new TrblShootData();
queries q = BuildQuery(FirstName, LastName, Login, Email, isFirstName, isLastName, isLogin, isEmail);
if (q.isValidQueries)
{
DataContext1 mscDB = new DataContext1 ();
using (DataContext2 opsDB = new DataContext2 ())
{
tmemp = opsDB.ExecuteQuery<EmployeeTeam>(q.qryEmployeeTeam);
}
using (DataContext3 rptDB = new DataContext3 ())
{
hier = rptDB.ExecuteQuery<Hieracrhy>(q.qryHierarchy);
if (hier != null)
{
logins = hier.Select(s => s.SalesRepLogin).Distinct().ToList();
}
}
tsData.EmpTeam = tmemp.Select(r=>r);
tsData.Hierarchy = hier.Select(r => r);
tsData.Logins = logins.Select(r => r).ToList();
TroubleShootData = tsData;
}//if
}
}
From another class I attempt to do this:
tshtr.GetData(txtFirstName.Text, txtLastName.Text, txtLogin.Text, txtEmail.Text, chkFirstName.Checked, chkLastName.Checked, chkLogin.Checked, chkEmail.Checked);
gvEmpTeams.DataSource = tshtr.TroubleShootData.EmpTeam;
gvHierarchy.DataSource = tshtr.TroubleShootData.Hierarchy;
gvEmpTeams.DataBind();
gvHierarchy.DataBind();
But at the DataBind() I get an error saying that I cannot read from a closed reader.
I'm not seeing why it would throw this error when I've set my property as above after I've assigned the values in the usings. So I'm not seeing how this is trying to use a closed reader.
Thanks for any help!
Because of deferred execution, your query only executes when the data-binding engine enumerates its results, after you close the DataContext.
You need to call .ToList() before closing the DataContext to force it to be evaluated immediately.