![]() In English, a complete sentence has a main clause with a subject and verb. Even sentence fragments.Ī sentence fragment is a phrase or clause written as a sentence but lacking an element, as a subject or verb, that would enable it to function as an independent sentence in normative written English. Yep, there’s a time and place for everything. We will also teach when you may actually want to use them to make your writing shine. Here’s where comes in! We will teach you about different types of sentence fragments and how to transform them into functioning, complete sentences. Their use can make writing seem choppy and disorganized, and they can easily sneak into our writing without us even noticing. ![]() Readers are left confused-or worse yet, annoyed because they can’t decipher the fragment’s meaning.Īs you can see, sentence fragments are chunks of sentences that can’t stand alone. This is often what happens when a reader comes across a sentence fragment like our example above. Often we need to lookup or find a fragment instance within an activity layout file.What was leaking profusely? The kitchen sink? The hot air balloon? The baby’s diaper? The informants secretly embedded in the organizationĪre you perplexed-or maybe even a little bit curious-about the rest of the story and the missing words? (OK, maybe not in the case of the diaper.) Refer to this detailed lifecycle chart to view the lifecycle of a fragment more visually. ![]() The Java controller for a fragment looks like: import public class FooFragment extends Fragment Think of them as a partial (re-usable) activity: The XML layout file is just like any other layout file, and can be named fragment_foo.xml. Usage Defining a FragmentĪ fragment, like an activity, has an XML layout file and a Java class that represents the Fragment controller. To reiterate, in a fragment-based architecture, the activities are for navigation and the fragments are for views and logic. Retrieval and storage of data from persistence through model objects.Triggering of network request through a client object.View state management logic such as visibility or error handling.Event handling logic associated with relevant views.Layouts and views displaying relevant app content.Receiving data from intents and passing data between fragments.įragments are content controllers and contain most views, layouts, and event logic including:.Hiding and showing relevant fragments using the fragment manager.Presenting navigational components such as the navigation drawer or the viewpager.Navigation to other activities through intents.Inside of an app which uses fragments extensively, we need to keep in mind that the role of an activity shifts.Īctivities are navigation controllers primarily responsible for: Within a fragment-heavy app, we need to remember to organize our code according to architectural best practices. Fragments enable both orientations to reuse shared elements while also having differences. Screen Orientation - Often within apps, the portrait version of an activity has a substantially different layout from the landscape version.Fragments enable device-specific activities to reuse shared elements while also having differences. Tablet Support - Often within apps, the tablet version of an activity has a substantially different layout from the phone version which is different from the TV version. ![]() For example, using the same list across different data sources within an app. Reusing View and Logic Components - Fragments enable re-use of parts of your screen including views and event logic over and over in different ways across many disparate activities. ![]() There are many use cases for fragments but the most common use cases include: Within a fragment-oriented architecture, activities become navigational containers that are primarily responsible for navigation to other activities, presenting fragments and passing data.
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