Some investigators suggest acromioplasty as only a treatment for calcific tendinopathy, or as an important procedure for deposit removal. The changes are permanent and an acromioplasty is needed more often than not for treatment. Heterotopic ossification after acromioplasty and distal clavicle resection.
A Fragment is a piece of an application's user interface or behavior that can be placed in an Activity. Interaction with fragments is done through FragmentManager, which can be obtained via Activity.getFragmentManager() and Fragment.getFragmentManager().
While fragments are strongly integrated into the UI you can use fragments without a view or UI components. Fragments can implement a number of application behaviors, such as, code to handle listeners, files, database, etc. fragment is a modular part of an activity. It has its own lifecycle and receives its own input events. Fragments can created, added or removed while the activity is running. Consider a fragment a sub activity that you can reuse in different activities.