Fragments: Past, present, and future (Android Dev Summit '19) Tech Mirrors
Fragments were one of the first APIs unbundled from the Android framework and have evolved significantly since their introduction. We’ll be talking though the origins of Fragments, how our more recent changes have made them easier to work with, and give a glimpse into where Fragments are going and their place in 2019 and beyond.
Presented by: Ian Lake, Jeremy Woods
Kotlin Sessions → https://goo.gle/2PqDcdg
Android Dev Summit ’19 all sessions playlist → https://goo.gle/ADS19allsessions
Subscribe to the Android Developers channel! → https://goo.gle/AndroidDevs
Check out the photo album → http://goo.gle/ADS19Photos
#AndroidDevSummit” event: Android Dev Summit 2019; re_ty: Publish; product: Android – General; fullname: Ian Lake, Jeremy Woods;
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Android is busy conquering the mobile application development market and there are a huge number of companies who have moved on to mobile application development by landing up with Android app development projects. Since Android is an open source platform, the popularity is growing steadily and there are many mobile application developers who are trying to make the best use of the mobile platform. Since most of the startups in the field of mobile app development rely on free app development tools and technologies, it is easy for them to take up Android-based development projects for meeting customers’ demands.
Mobile developers who create Android apps rely on Java language mainly though the Scripting Layer for Android (SL4A) is used consistently for writing applications in Python, Perl and other environments. With the recent developments in the platform with Android 2.3 and Android 4.0, the developers obtained an opportunity to start development of apps in Android as the latest versions support Adobe Flash and Adobe AIR technologies.
Android SDK is provided to developers for the app development process along with the environment for writing, testing and debugging mobile apps.
The Eclipse IDE is helpful for a quick and easy Android application development process. One can customize it using the Android Development Tools Plugin which thus helps in enhancing the quality and quantity of Android mobile applications.
Android Emulator ensures that the testing and debugging process using Android device-emulators is done smoothly which helps developers to create an environment which simulates the features of the OS as well as the mobile devices.
Android app developers utilize the Android framework APIs and take advantage of a plethora of C/C++ libraries. The libraries include System C library, SQlite, SGL graphics engine, 3D libraries and some others technologies.
Mobile app developers who work Android app development can sell off their mobile solutions in the Android Market and even publicize it via a website. Android Marketplace is basically an application store which was launched by Google for Android-based apps distribution. The apps are created and distributed by developers worldwide and the store now boasts of more than 200,000 Android apps which prove that it is second to the iOS and is fast catching up in popularity.
The Android platform has extensively expanded its wings in the mobile app development market and has gained substantially too for tablet PCs too. With the advent of the offshore software development market, the mobile market has vouched for outsourcing of the process which has resulted in drastic returns in productivity and costs.
What is Android Summit?
An event focused on designing, developing, and testing for Android.
What is a developer summit?
The Esri Developer Summit (DevSummit) is designed to show you how to build cutting-edge apps using advanced mapping technology. Explore hundreds of hours of learning in one location with technical workshops and sessions, learn development best practices, and get the latest on new technology.
What is Google Assistant Developer Day?
This is your chance to explore, learn and connect directly through interactive talks and sessions. The day will begin with a keynote about new features that will enable better developer and consumer experiences for Google Assistant. … Next, you will learn about new tools to drive discovery of your App Actions.
What are fragments in Android?
According to the Android documentation, a fragment is a part of applications user interface that is bound to an activity. Fragments have their lifecycle and layouts or UI components. Fragments help enrich your UI design, pass data between different screens, and adapt to different device configurations.
Why fragments are used in Android?
Fragments always exist within the context of a given Activity and can always access that Activity. By storing the information of interest within the Activity, the Fragment for each screen can simply access the object reference through the Activity.
What is the difference between a fragment and an activity?
Activity is an application component that gives a user interface where the user can interact. The fragment is only part of an activity, it basically contributes its UI to that activity. … After using multiple fragments in a single activity, we can create a multi-screen UI.
How does fragment work in Android?
Overview
- A Fragment is a combination of an XML layout file and a java class much like an Activity .
- Using the support library, fragments are supported back to all relevant Android versions.
- Fragments encapsulate views and logic so that it is easier to reuse within activities.
What do fragments do?
Usually, fragments are pieces of sentences that have become disconnected from the main clause. One of the easiest ways to correct them is to remove the period between the fragment and the main clause. Other kinds of punctuation may be needed for the newly combined sentence.
Why are fragments important?
Fragments are Android’s solution to creating reusable user interfaces. You can achieve some of the same things using activities and layouts (for example by using includes). However; fragments are wired in to the Android API, from HoneyComb, and up.
How do you use Getupportfragmentmanager?
How to usegetSupportFragmentManagermethodinandroid.support.v4.app.FragmentActivity
- Fragment fragment;fragment.getActivity()
- Robolectric.buildActivity(FragmentActivity.class).create().get()
What is .apk extension in Android?
Extended from. JAR. Android Package (APK) is the Android application package file format used by the Android operating system, and a number of other Android-based operating systems for distribution and installation of mobile apps, mobile games and middleware.
Should I use fragments or activities?
To put it simply : Use fragment when you have to change the UI components of application to significantly improve app response time. Use activity to launch existing Android resources like video player, browser etc.
What is fragments in Android with example?
Android Fragment is the part of activity, it is also known as sub-activity. There can be more than one fragment in an activity. Fragments represent multiple screen inside one activity.
…
Android Fragment Lifecycle Methods.
| No. | Method | Description |
|---|---|---|
| 11) | onDestroy() | allows the fragment to do final clean up of fragment state. |
Can we use fragment without activity in Android?
Fragment can’t be initiated without Activity or FragmentActivity. As soon as you create an instance of the Fragment class, it exists, but in order for it to appear on the UI, you must attach that fragment to an activity because a fragment’s lifecycle runs parallel to an activity’s lifecycle.
How can we use multiple fragments in one activity?
Displaying Multiple Fragments in a Single Activity — Android
- Step 1 — Create a base activity. The first step is to create a base activity which is gonna host the fragments which we need to display. …
- Step 2 — Edit the activity layout file. …
- Step 3 — Create Fragments. …
- Step 4 — Add fragment transaction codes
What is fragment in mobile application?
A Fragment represents a reusable portion of your app’s UI. A fragment defines and manages its own layout, has its own lifecycle, and can handle its own input events. Fragments cannot live on their own–they must be hosted by an activity or another fragment.
What is a fragment lifecycle in Android?
Fragment life cycle is closely related to the life cycle of its host activity which means when the activity is paused, all the fragments available in the activity will also be stopped. A fragment can implement a behaviour that has no user interface component.
What is a fragment example?
Here is a glaring example of a sentence fragment: Because of the rain. On its own, because of the rain doesn’t form a complete thought. … Now the fragment has become a dependent clause attached to a sentence that has a subject (the party) and a verb (was canceled).
What fragmented sentence?
A sentence fragment is a sentence that is missing either its subject or its main verb. Some sentence fragments occur as the result of simple typographical errors or omission of words. They can often be avoided with careful proofreading.
What is fragment and give examples?
A fragment is a group of words that does not express a complete thought. It is not a complete sentence, but it could be a phrase. Examples of Fragment: the boy on the porch. to the left of the red car.
