두 프래그먼트 간의 전환시 원 진행 막대

Question

조각을 포함하는 탐색 창을 만들고 각 프래그먼트를로드하는 데 몇 시간이 걸립니다. 무엇을하는 것은 의미 screenshot gmail app

홈페이지 Activity.class

public boolean onNavigationItemSelected(MenuItem item) { 

    int id = item.getItemId(); 
    if (id == R.id.profil) { 

    } 
    else if (id == R.id.accueil) { 

     AccueilFragment fragment = new AccueilFragment(); 
     android.support.v4.app.FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction(); 
     fragmentTransaction.replace(R.id.fragment1, fragment); 
     fragmentTransaction.commit(); 
     floatingActionButton.show(); 
     getSupportActionBar().setTitle("Accueil"); 


    } else if (id == R.id.categories) { 
     CategoriesFragment fragment = new CategoriesFragment(); 
     android.support.v4.app.FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction(); 
     fragmentTransaction.replace(R.id.fragment1, fragment); 
     fragmentTransaction.commit(); 
     floatingActionButton.hide(); 
     getSupportActionBar().setTitle("Categories"); 


    } 
} 

Answer 1

private ProgressDialog mProgressDialog; 

mProgressDialog = new ProgressDialog(this); 

mProgressDialog.setMessage("Working ..."); 

private void doSomeWorkMethod() { 

    mProgressDialog.show(); 

    doSomeWork . . . 

    mProgressDialog.dismiss(); 

    Snackbar.make(v, "Work Complete.", Snackbar.LENGTH_LONG) 
     .setAction("Action", null).show(); 
}