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. Activity is not dependent on fragment. Fragment is dependent on activity.
Kas yra „Android“ fragmentas?
Fragmentas reprezentuoja daugkartinė jūsų programos vartotojo sąsajos dalis. Fragmentas apibrėžia ir valdo savo išdėstymą, turi savo gyvavimo ciklą ir gali tvarkyti savo įvesties įvykius. Fragmentai negali gyventi patys – juos turi talpinti veikla ar kitas fragmentas.
When should you use fragment rather than activity?
4 reasons to use Android Fragments
- Dealing with device form-factor differences. The Activity class is often thought of as the main UI class in Android. …
- Passing information between app screens. …
- User interface organization. …
- Advanced UI metaphors.
Kuo „Android“ programose naudojami fragmentai?
Fragmentas yra XML išdėstymo failo ir Java klasės derinys, panašus į veiklą. Naudojant palaikymo biblioteką, fragmentai palaikomi atgal į visas atitinkamas „Android“ versijas. Fragmentai aprėpti požiūrius ir logiką kad būtų lengviau pakartotinai panaudoti veikloje.
Kas yra fragmentas?
Fragmentai yra neužbaigti sakiniai. Paprastai fragmentai yra nuo pagrindinio sakinio atsieti sakinių fragmentai. Vienas iš paprasčiausių būdų juos ištaisyti – pašalinti laikotarpį tarp fragmento ir pagrindinio sakinio. Naujai sujungtam sakiniui gali prireikti kitų rūšių skyrybos ženklų.
Kuo skiriasi fragmentas ir veikla?
Activity is the part where the user will interacts with your application. … Fragment represents a behavior or a portion of user interface in an Activity. You can combine multiple fragments in a single activity to build a multi-pane UI and reuse a fragment in multiple activities.
What is difference between intent and fragment?
2.by intent you can communicate between android components such as activities, content providers, broadcast receivers and services, but by fragment you cant and in the otherwise fragment is child of activity.
Kodėl mes naudojame fragmentus?
According to the Android documentation, a fragment is a part of applications user interface that is bound to an activity. … Fragments help enrich your UI design, pass data between different screens, and adapt to different device configurations. Unlike activities, fragments are usable.
What are the benefits of Android fragments?
Fragments allow such designs without the need for you to manage complex changes to the view hierarchy. By dividing the layout of an activity into fragments, you become able to modify the activity’s appearance at runtime and preserve those changes in a back stack that’s managed by the activity.