Windows 8 Store Apps Learning (27) Selector: Contact Selection window

Selector: Contact Selection window, customizing the Contact Selection window

Introduced

Re-imagine the Windows 8 Store Apps Selector

Contactpicker-Contact Selector

Contactpickerui-Custom Contact Selector

Example

Demonstrates how to select one or more contacts through contactpicker and how to develop custom contact selectors

1. Develop a custom contact selector

Picker/mycontactpicker.xaml

<page
    x:class= "XamlDemo.Picker.MyContactPicker"
    xmlns= "Http://schemas.microsoft.com/winfx/2006/xaml /presentation "
    xmlns:x=" Http://schemas.microsoft.com/winfx/2006/xaml "
    xmlns:local=" using: Xamldemo.picker "
    xmlns:d=" http://schemas.microsoft.com/expression/blend/2008 "
    xmlns:mc=" http:// schemas.openxmlformats.org/markup-compatibility/2006 "
    mc:ignorable=" D ">
    
    <grid background=" Transparent ">
        <stackpanel margin=" 0 0 0 ">
    
            <textblock name=" lblmsg "fontsize=" 14.667 "/>
    
            <button name= "Btnaddcontract" content= "Add a Contact" click= "Btnaddcontract_click" margin= "0 0 0"
    
        /> </StackPanel>
    </Grid>
</Page>

Picker/mycontactpicker.xaml.cs

* * Demonstrates how to develop a custom contact Picker * 1, add a "contact selector" declaration in Package.appxmanifest, and make a related configuration * 2, override void Onactiva in App.xaml.cs Ted (Iactivatedeventargs args) to get information about the Contact Picker * Contactpickeractivatedeventargs-event arguments when activating an application through the contact selector * Contac 
 Tpickerui-Get Contactpickerui objects * previousexecutionstate, Kind, SplashScreen-the various event parameters that activate the app are basically all of these attributes, and it's not much to say  * Contactpickerui-Customize the Help class for the contact Picker * SelectionMode-Get the SelectionMode property set by the Contactpicker (caller) * Desiredfields -Get the Desiredfields property * ADDCONTACT (string ID, contact contacts) set by Contactpicker (caller)-Select a person * ID-Contact Sign     Know * Contact-a Touch Object * removecontact ()-Deletes the specified identity's contacts * CONTAINSCONTACT ()-Specifies whether the identified contact has been selected * Contactremoved-Event triggered by removing a selected contact-the contact object returned to the caller * name-name * Thumbnail-Thumbnail * fiel DS-Contact field data, each data is an object that implements the Icontactfield interface * * Contactfield-implements the Icontactfield interface, which describes one field data * Type of the contact person -Field type (ContactfieldtypeEnum) * Email, PhoneNumber, Location, Instantmessage, Custom * Category-field category (Contactfieldcategory enumeration) *
None, Home, Work, Mobile, other * value-field values * * using System;
Using Windows.ApplicationModel.Activation;
Using Windows.ApplicationModel.Contacts.Provider;
Using Windows.UI.Xaml;
Using Windows.UI.Xaml.Controls;
Using Windows.UI.Xaml.Navigation;
Using Windows.ApplicationModel.Contacts;
Using Windows.Storage.Streams;
    
Using Windows.UI.Core; Namespace Xamldemo.picker {public sealed partial class Mycontactpicker:page {Private Contactpickerui _
    
        Contactpickerui; Public Mycontactpicker () {this.
        InitializeComponent (); 
            } protected override void Onnavigatedto (NavigationEventArgs e) {//Get Contactpickerui Object
            var contactpickeractivated = e.parameter as Contactpickeractivatedeventargs; _contactpickerui = Contactpickeractivated.contactpickerui;   
        _contactpickerui.contactremoved + = _contactpickerui_contactremoved; } protected override void Onnavigatedfrom (NavigationEventArgs e) {_contactpickerui.conta
        ctremoved-= _contactpickerui_contactremoved; ///Remove the Async void _contactpickerui_contactremoved from the selection buffer (Contactpickerui sender, Contactremovedevent 
            Args Args) {//NOTE: You cannot directly tell if Contactpickerui is a single or multiple mode, you need to decide that when you add a contact, add a contact, if the system will automatically remove the previous contact, it is a single mode Await this.  Dispatcher.runasync (Coredispatcherpriority.normal, () => {lblmsg.text = "removed contact: "+ args."
                Id;
            Lblmsg.text + = Environment.NewLine;
        }); } private void Btnaddcontract_click (object sender, RoutedEventArgs e) {Random Random = n
    
            EW Random ();
            Construct a Contact object contact = new Contact (); Contact. Name = "WeBABCD "+ random. Next (1000, 10000).
            ToString (); Contact. Fields.Add (New Contactfield (random). Next (1000, 10000).
            ToString (), Contactfieldtype.email, contactfieldcategory.home)); Contact. Fields.Add (New Contactfield (random). Next (1000, 10000).
            ToString (), Contactfieldtype.email, contactfieldcategory.work)); Contact. Fields.Add (New Contactfield (random). Next (1000, 10000).
            ToString (), Contactfieldtype.phonenumber, contactfieldcategory.home)); Contact. Fields.Add (New Contactfield (random). Next (1000, 10000).
            ToString (), Contactfieldtype.phonenumber, contactfieldcategory.work)); Contact.
    
            Thumbnail = Randomaccessstreamreference.createfromuri (New Uri ("Ms-appx:///assets/logo.png", Urikind.absolute)); String id = Guid.NewGuid ().
    
            ToString (); Add a new contact switch to the selection buffer (_contactpickerui.addcontact (ID, contacts)) {case Addconta Ctresult.added://has been successfully added Lblmsg.text + = "Added Contact:" + ID;
                    Lblmsg.text + = Environment.NewLine;
                Break
                    Case addcontactresult.alreadyadded://Select buffer already has this contact person lblmsg.text + = "Already added contacts:" + ID;
                    Lblmsg.text + = Environment.NewLine;
                Break
                    Case addcontactresult.unavailable://Invalid contact person Lblmsg.text + = "Unavailable contacts:" + ID;
                    Lblmsg.text + = Environment.NewLine;
            Break }
        }
    }
}

2, determine whether the program is activated by the contact selector, in App.xaml.cs override void Onactivated (Iactivatedeventargs args)
App.xaml.cs

protected override void Onactivated

(Iactivatedeventargs args)
{
    //if (args) activates the application through the contact selector
    . Kind = = Activationkind.contactpicker)
    {
        Contactpickeractivatedeventargs Contactpickerargs = args as Contactpickeractivatedeventargs;
    
        Frame rootframe = new Frame ();
        Rootframe.navigate (typeof (MainPage), Contactpickerargs);
        Window.Current.Content = Rootframe;
    
        Window.Current.Activate ();
    }