Home > Articles > Programming > General Programming/Other Languages

Like this article? We recommend

Types of Pages

Besides displaying a ContentPage within a page, in Xamarin.Forms a Page can also contain one of the following:

  • MasterDetailPage class
  • NavigationPage class
  • TabbedPage class
  • CarouselPage class

The following sections take a more detailed look at the different types of pages you can create in Xamarin.

MasterDetailPage Class

Let's take a look at how the MasterDetailPage class works. The MasterDetailPage displays two pages—one master and one detail. When MasterDetailPage is loaded, the detail page is shown. You can slide the detail page to the right to reveal the master page. The master page is usually used to display menus or a list of items. When an item is selected, detailed information about the selected item is displayed in the detail page.

To use the MasterDetailPage class, add the statements shown in bold in the following code to the App.cs file in the HelloWorld project:

using System;
using Xamarin.Forms;

namespace HelloWorld
{
  public class App
  {
    public static Page GetMainPage ()
    {
      /*
        return new ContentPage {
          Content = new Label {
             Text = “Hello, Forms!”,
             VerticalOptions = LayoutOptions.CenterAndExpand,
             HorizontalOptions = LayoutOptions.CenterAndExpand,
        },
      };
     */
     return new MasterDetailPageDemo ();
    }
  }

  public class MasterDetailPageDemo : MasterDetailPage {
    public MasterDetailPageDemo() {
      this.Master = MasterPage ();
      this.Master.BackgroundColor = Color.Yellow;

      this.Detail = DetailPage ();
      this.Detail.BackgroundColor = Color.Lime;
    }
    public Page MasterPage ()
    {

      return new ContentPage {
        Content = new Label {
           Text = “Master Page”,
           VerticalOptions = LayoutOptions.CenterAndExpand,
           HorizontalOptions = LayoutOptions.CenterAndExpand,
        },
      };
   }

   public Page DetailPage ()
   {
     return new ContentPage {
       Content = new Label {
          Text = “Detail Page”,
          VerticalOptions = LayoutOptions.CenterAndExpand,
          HorizontalOptions = LayoutOptions.CenterAndExpand,

       },
     };
     }
  }
}

In this example, the MasterDetailPageDemo class extends the MasterDetailPage base class. The class has two methods—MasterPage() and DetailPage()—each of which returns a ContentPage object. You set the master page by assigning a ContentPage object to the Master property of the MasterDetailPageDemo class; likewise, you set the detail page by assigning a ContentPage object to the Detail property. Finally, in the GetMainPage() method, instead of returning a ContentPage object, you return a MasterDetailPage object.

Figure 8 shows how the application looks in the iPhone Simulator. You can slide the detail page to the right to reveal the master page.

Figure 8

Figure 8 The MasterDetailPage running on the iPhone Simulator.

Figure 9 shows the same application, which looks similar when it's run on the Android emulator.

Figure 9

Figure 9 The MasterDetailPage running on the Android emulator.

TabbedPage Class

The TabbedPage class allows two or more pages to be represented in an array of tabs shown either on the bottom of the screen (iOS) or at the top of the screen (Android).

For this example, add four images to the Resources folder of the HelloWorld.iOS project, as shown in Figure 10.

Figure 10

Figure 10 Adding four images to the Resources folder of the iOS project.

Right-click the four images and select Build Action > BundleResource (see Figure 11).

Figure 11

Figure 11 Setting the build action for the four images.

For the HelloWorld.Android project, add the two images shown in Figure 12 to the Resources/drawable folder.

Figure 12

Figure 12 Adding two images to the Resources/drawable folder of the Android project.

Right-click the two images and select Build Action > AndroidResource (see Figure 13).

Figure 13

Figure 13 Setting the build action for the two images.

To use the TabbedPage class, add the statements shown in bold in the following code to the App.cs file in the HelloWorld project:

using System;
using Xamarin.Forms;
namespace HelloWorld
{

  public class App
  {
    public static Page GetMainPage ()
    {
      /*
      return new ContentPage {
        Content = new Label {
          Text = “Hello, Forms!“,
          VerticalOptions = LayoutOptions.CenterAndExpand,
          HorizontalOptions = LayoutOptions.CenterAndExpand,
       },
    };

     */
      //return new MasterDetailPageDemo ();
      return new TabbedPageDemo ();
   }
  }

  public class TabbedPageDemo: TabbedPage {
     public TabbedPageDemo() {
       var page1 = FirstPage ();
       page1.Title = “Page 1”;
       page1.Icon = “tags.png”;

       var page2 = SecondPage ();
       page2.Title = “Page 2”;
       page2.Icon = “target.png”;
       this.Children.Add (page1);
       this.Children.Add (page2);

    }

    public Page FirstPage ()
    {
      return new ContentPage {
        Content = new Label {
          Text = “First Page”,
          VerticalOptions = LayoutOptions.CenterAndExpand,
          HorizontalOptions = LayoutOptions.CenterAndExpand,

       },
     };
   }

   public Page SecondPage ()
   {
     return new ContentPage {
       Content = new Label {
         Text = “Second Page”,
         VerticalOptions = LayoutOptions.CenterAndExpand,
         HorizontalOptions = LayoutOptions.CenterAndExpand,

      },
    };
   }
 }

 public class MasterDetailPageDemo : MasterDetailPage {
   ...
  }
}

In the above example, the TabbedPageDemo class extends the TabbedPage base class. It has two methods—FirstPage() and SecondPage()—each of which returns a ContentPage object. To set the various pages, you use the Add() method to add ContentPage objects. You can also assign a tab title and icons for each individual page. Finally, in the GetMainPage() method, instead of returning a ContentPage object, you return a TabbedPage object.

Figure 14 shows how the application will look in the iPhone Simulator.

Figure 14

Figure 14 The TabbedPage running on the iPhone Simulator.

Figure 15 shows how the application will look in the Android emulator. At the time of writing, Xamarin.Forms does not support icons in TabbedPage.

Figure 15

Figure 15 The TabbedPage running on the Android Emulator.

CarouselPage Class

A CarouselPage class allows pages to be displayed using swipe gestures. It is especially useful if you have a series of information items (such as images) to display in each page.

To use the CarouselPage class, add the statements shown in bold in the following code to the App.cs file in the HelloWorld project:

using System;
using Xamarin.Forms;

namespace HelloWorld
{
  public class App
  {
    public static Page GetMainPage ()
    {
      /*
      return new ContentPage {
         Content = new Label {
           Text = “Hello, Forms!”,
           VerticalOptions = LayoutOptions.CenterAndExpand,
           HorizontalOptions = LayoutOptions.CenterAndExpand,
     },
   };
   */
      //return new MasterDetailPageDemo ();

      //return new TabbedPageDemo ();
       return new CarouselPageDemo ();
     }
   }

    public class CarouselPageDemo: CarouselPage {
      public CarouselPageDemo() {
          var page1 = FirstPage ();
          var page2 = SecondPage ();
          this.Children.Add (page1);
          this.Children.Add (page2);
      }

     public ContentPage FirstPage ()
     {
        return new ContentPage {
          Content = new Label {
            Text = “First Page”,
            VerticalOptions = LayoutOptions.CenterAndExpand,
            HorizontalOptions = LayoutOptions.CenterAndExpand,
       },
     };
   }

    public ContentPage SecondPage ()
    {

      return new ContentPage {
        Content = new Label {
           Text = “Second Page”,
           VerticalOptions = LayoutOptions.CenterAndExpand,
           HorizontalOptions = LayoutOptions.CenterAndExpand,
       },
     };
   }
  }
    public class TabbedPageDemo: TabbedPage {
      ...
    }
    public class MasterDetailPageDemo : MasterDetailPage {
      ...
    }

}

In the above example, the CarouselPageDemo class extends the CarouselPage base class. It has two methods—FirstPage() and SecondPage()—each of which returns a ContentPage object. To set the various pages, you use the Add() method to add ContentPage objects. Finally, in the GetMainPage() method, instead of returning a ContentPage object, you return a CarouselPage object.

Figure 16 shows how the application will look in the iPhone Simulator. You can swipe the page to reveal the second page.

Figure 16

Figure 16 The CarouselPage running on the iPhone Simulator.

Figure 17 shows how the application will look in the Android emulator.

Figure 17

Figure 17 The CarouselPage running on the Android Emulator.

NavigationPage Class

A NavigationPage class allows pages to be stacked on top of one another using the Last-In-First-Out sequence.

To use the NavigationPage class, add the statements shown in bold in the following code to the App.cs file in the HelloWorld project:

using System;
using Xamarin.Forms;
namespace HelloWorld
{
  public class App
  {
    public static Page GetMainPage ()
    {
       /*
       return new ContentPage {
          Content = new Label {
            Text = “Hello, Forms!”,
            VerticalOptions = LayoutOptions.CenterAndExpand,
            HorizontalOptions = LayoutOptions.CenterAndExpand,

        },
        };
        */
         //return new MasterDetailPageDemo ();
         //return new TabbedPageDemo ();
         //return new CarouselPageDemo ();

         var rootPage = new NavigationPageDemo();
         rootPage.Title = “Main Page”;
         var navPage = new NavigationPage (rootPage);
         return navPage;
       }
    }
    public class NavigationPageDemo: ContentPage {
       public NavigationPageDemo ()
        {
         Button btn = new Button {
            Text = “Next Page”,
            HorizontalOptions = LayoutOptions.Center
            };
            btn.Clicked += async (sender, args) => {
                var secondPage = new NavigationPageDemo().SecondPage();
                await this.Navigation.PushAsync (secondPage);
            };
            Label label = new Label {
                Text = “Root Page”,
                VerticalOptions = LayoutOptions.CenterAndExpand,
                HorizontalOptions = LayoutOptions.CenterAndExpand,
            };
            Content = new StackLayout {
                Children = {
                    label,
                    btn
                }
            };
        }
        public Page SecondPage ()
        {
            return new ContentPage {
                Content = new Label {
                    Text = “Second Page”,
                    VerticalOptions = LayoutOptions.CenterAndExpand,
                    HorizontalOptions = LayoutOptions.CenterAndExpand,
                },
            };
        }
    }
    public class CarouselPageDemo: CarouselPage {
      ...
    }
    public class TabbedPageDemo: TabbedPage {
      ...
    }
    public class MasterDetailPageDemo : MasterDetailPage {
      ...
    }
}

In the above example, the NavigationPageDemo class extends the ContentPage base class. It has one method—SecondPage()—that returns a ContentPage object. In the constructor for the NavigationPageDemo class, you add a button and a label to the page, and then create a Clicked event handler for the button. When the button is clicked, you navigate to the second page by using the PushAsync() method of the Navigation object.

Then, in the GetMainPage() method, you create a NavigationPageDemo object, set its title, and then set it as the root page by passing it as the argument to the NavigationPage constructor. Finally, you return the NavigationPage object.

Figure 18 shows how the application will look in the iPhone Simulator. Clicking the Next Page button at the bottom of the page will navigate to the second page. To go back to the first page, click the Main Page button located at the top of the page.

Figure 18

Figure 18 The NavigationPage running on the iPhone Simulator.

Figure 19 shows how the application will look in the Android emulator.

Figure 19

Figure 19 The NavigationPage running on the Android emulator.

InformIT Promotional Mailings & Special Offers

I would like to receive exclusive offers and hear about products from InformIT and its family of brands. I can unsubscribe at any time.

Overview


Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information


To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

For inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

For orders and purchases placed through our online store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.

Surveys

Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites, develop new products and services, conduct educational research and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.

Newsletters

If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simply email information@informit.com.

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

We communicate with users on a regular basis to provide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through our Contact Us form.

Other Collection and Use of Information


Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.

Security


Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.

Children


This site is not directed to children under the age of 13.

Marketing


Pearson may send or direct marketing communications to users, provided that

  • Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
  • Such marketing is consistent with applicable law and Pearson's legal obligations.
  • Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
  • Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

Pearson may provide personal information to a third party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information


If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on the Account page. If a user no longer desires our service and desires to delete his or her account, please contact us at customer-service@informit.com and we will process the deletion of a user's account.

Choice/Opt-out


Users can always make an informed choice as to whether they should proceed with certain services offered by InformIT. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive: www.informit.com/u.aspx.

Sale of Personal Information


Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information to NevadaDesignatedRequest@pearson.com.

Supplemental Privacy Statement for California Residents


California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure


Pearson may disclose personal information, as follows:

  • As required by law.
  • With the consent of the individual (or their parent, if the individual is a minor)
  • In response to a subpoena, court order or legal process, to the extent permitted or required by law
  • To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
  • In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
  • To investigate or address actual or suspected fraud or other illegal activities
  • To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
  • To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
  • To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.

Links


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact


Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice


We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020