Fragment ID, Fragment TAG (12:12)Ī fragment manager must know how to identify which fragment it is using, and it does that through either a fragment ID or tag. In the case of support fragments, it is getSupportFragmentManager(). If you use framework fragments, it would be getFragmentManager(). child fragments.įragmentManager fm = getSupportFragmentManager () Įach FragmentManager has an equivalent with the type of fragment that you use. As Android’s constantly updated, there are new features added to fragments, e.g. They are constantly updated alongside the support library, usually three or four times per year. Support fragments come from the version four support library and do work with AppCompatActivities. They are rarely updated and do not work with AppCompatActivity, which is the current activities version. This is normally a framed layout within a standard activity.ĭynamic fragments also have two main subtypes:įramework fragments have been around since fragment’s inception, five years ago. Using a dynamic fragment simply requires the usage of a container to place that fragment in. They have their own lifecycle, anatomy, classes and even subtypes, with the addition of their layouts (similar to Activity in many respects). Dynamic fragments are almost reconfigurable puzzle pieces.Static fragments are placed within an activity layout and never change.They help us reuse components into multiple activities, providing much of the same functionality, but doing a few things better. We will take that one step further into how to use them in basic activity, along with the common usage in three primary ways, concluding with best practices.įragments were introduced all the way back in Android Honeycomb to help alleviate the new screen sizes that had just been added thanks to the introduction of tablets. We’re going to cover why fragments are used, and the different types which they come in, including the linking to the anatomy, and the infamous lifecycle. They provide almost as many benefits as they do issues. In this talk from 360|AnDev, take a journey through the fundamentals of Fragments, and learn how to leverage them with David Hope.įragments are a powerful, yet controversial part of Android development. On the other hand, their lifecycle, use cases, and interaction with Activities can be a complicated mess. They help us reuse components in Activities, ViewPagers, and Navigation drawers, among other advantages. Fragments are a powerful, yet misunderstood, part of Android Development.
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