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Xamarin Mobile Development for Android Cookbook

You're reading from   Xamarin Mobile Development for Android Cookbook Over 80 hands-on recipes to unleash full potential for Xamarin in development and monetization of feature-packed, real-world Android apps

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Product type Paperback
Published in Nov 2015
Publisher
ISBN-13 9781784398576
Length 456 pages
Edition 1st Edition
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Author (1):
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Matthew Leibowitz Matthew Leibowitz
Author Profile Icon Matthew Leibowitz
Matthew Leibowitz
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Table of Contents (15) Chapters Close

Preface 1. Working with Xamarin.Android FREE CHAPTER 2. Showing Views and Handling Fragments 3. Managing App Data 4. Presenting App Data 5. Communicating with the Outside World 6. Using Background Tasks 7. Notifying Users 8. Interacting with Other Apps 9. Presenting Multimedia 10. Responding to the User 11. Connecting to Wearables 12. Adding In-App Billing 13. Publishing Apps Index

Using a BaseAdapter with arbitrary data


Sometimes, we need to have the flexibility to completely customize the way a datatype is rendered for each item. To do this, we can make use of the BaseAdapter type and custom item layouts.

How to do it...

If we want to specify an actual custom type, then we can create an adapter, derived from the BaseAdapter type:

  1. A list can bind to any data type collection, as long as we have an adapter that understands how to present each item. For example, we can bind to an arbitrary type:

    public class Person {
      public int Id { get; set; }
      public string Name {get;set;}
      public string Status {get;set;}
      public bool IsMale { get; set; }
    }
  2. The adapter that we will create can inherit from the generic BaseAdapter<T> adapter:

    public class PeopleAdapter : BaseAdapter<Person> {
      public override int Count { get; }
      public override Person this[int index] { get; }
    
      public override long GetItemId(int position) {
      }
      public override View GetView(
        int position...
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