vurmedi.blogg.se - Android studio fragment design view

screen size, screen density, rotation, etc.). Thanks for making the long trip guys and thanks to all my students (local and long distance) last week for your attendance and participation.ĭuring last week’s class, my students learned that Fragments (since Android 3) can be used to organize the display of information in Activities, especially those that have to deal with multiple device form factors (i.e. all the way from Turkey and Joshua and Doug came up from Mason City, Iowa. Some came a very long way to learn Android. Import 7.app.I had another great class of soon-to-be Android engineers in my class last week. In main activity, we will create three buttons: ADD A FRAGMENT, DELETE A FRAGMENT, REPLACE A FRAGMENT. This is main screen of our page, open activity_main.xml and copy the below code. View v=inflater.inflate(R.agment_frag2, container, false) ħ. Required empty public View onCreateView(LayoutInflater inflater, ViewGroup container, View v= l.inflate(R.agment_frag1, container, false) Required empty public View onCreateView(LayoutInflater l, ViewGroup container, In this fragment, we have given red colour. Open the fragment_frag2.xml file and follow the below code. Open the fragment_frag1.xml and copy the below the code. Create another fragment frag2 using same procedure of aboveģ. A transaction is a way to add, replace, or remove fragments.

onDetach()-separate out fragment from an Activity.Ī FragmentManager manages Fragments in Android, specifically it handles transactions between fragments.

onDestroy()-destroy all allocated resources.

onDestroyView()- first destroy all views.

onActivit圜reated()- provides an Acknowledgement that our task is complete.

onCreateView()-like setcontentView(), for providing the view.

onCreate()-Initialisation or allocation of memory.onAttach()- attaches fragment to activity.Multiple fragments can be combined in a single activity.It can be added or removed at run time.

It is always associated with an Activity.A fragment is a chunk part of an Activity which is used for achieving Panel Based Designing, to achieve reusability of GUI as well as to show effective GUI(large screen).