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Android Fragments

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What are Fragments?

2:15 with Ben Deitch

The goal of this course is to learn how to use Fragments in Android. In this video we'll learn some of the history of Fragments and get a better idea of what they are.

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    [MUSIC] 0:00
    Hi I'm Ben. 0:04
    And in this course, we'll be learning all about fragments. 0:06
    But before we talk about fragments, let's take a quick trip back in time. 0:09
    The year was 2011. 0:15
    We saw Charlie Sheen's very public meltdown, Oprah's last episode, and 0:16
    most importantly, we got a new version of Android. 0:21
    Honeycomb, Android's first and, so far, only tablet specific update. 0:25
    Honeycomb brought tons of new features to make working with tablet UIs a lot easier. 0:31
    By far, the biggest of these new features was Fragments. 0:36
    With Honeycomb, 0:40
    developers could now break up activities into sub-components called fragments. 0:41
    Here's an example. 0:46
    Let's say we're making an address book. 0:49
    We need a list for all of our contacts. 0:51
    And when we click on a contact, we see a new screen with more details. 0:53
    But how does this look on a tablet? 0:58
    Not so good. 1:01
    Luckily, with fragments, we can make this look a lot better. 1:02
    Instead of doing most of our UI in the activity, we can do it in the fragments. 1:07
    We can have a list fragment for our contact list and a details fragment for 1:12
    the details page. 1:17
    Then, regardless of whether a user is on a phone or 1:18
    a tablet, we can display the best UI possible. 1:22
    Now that we have a vague notion of what fragments are, 1:26
    let's take a look at the project we'll be working on. 1:29
    I don't know about you, 1:32
    but one of the most-used apps on my tablet is a recipe app. 1:33
    So for this course we'll be making a breakfast themed recipe app named 1:37
    Smells Like Bacon. 1:42
    Here it is in action. 1:44
    On a phone we have a list with all the recipes. 1:46
    And when we click on a recipe, we get a new screen with two tabs, one for 1:49
    ingredients and one for directions. 1:54
    On a tablet we have a grid with all the recipes. 1:57
    And when we click on a recipe, we get a new screen with 2:01
    the ingredients on the left and the directions on the right. 2:04
    It's a lot to cover. 2:08
    But at the end of this course, 2:10
    you should have an excellent understanding of fragments. 2:11

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