I use https://github.com/mikepenz/MaterialDrawer as the library for Drawer, and I use https://github.com/florent37/MaterialViewPager to view the pager.
The problem I am facing is that I am facing a slight lag (kind of delays) when I click on the list item in my inbox and close drwawer, after which the fragment is replaced with. I come across this in a fragment, which is the ViewPager above the fragment.
Activity(which has NavBar): public class mvpAct extends AppCompatActivity { private RelativeLayout mRelativeLayout; public static List<Model_Slots> list; private Drawer result; private static GetDetails gd; public static List<Model_Daywise> todayslist_m; public static List<Model_Daywise> todayslist_t; public static List<Model_Daywise> todayslist_w; public static List<Model_Daywise> todayslist_th; public static List<Model_Daywise> todayslist_fr; public static List<detailattlist_subcode> detail_att_all = new ArrayList<>(); public static HashMap<String, List<DetailAtten>> hash = new HashMap<>(); public static List<AttendBrief> attendBriefs = null; public static List<Marks_Model> marks_det; public static List<PBL_Model> lpbl; public void setMTWTFLists(final Context ctxt) { String mark = new SharedPrefs(ctxt).getMsg("marksdone").trim(); String att = new SharedPrefs(ctxt).getMsg("ttdone").trim(); String tt = new SharedPrefs(ctxt).getMsg("attendone").trim(); Log.d("Done Value", mark + "\t" + att + "\t" + tt); if (mark.equals("y") && att.equals("y") && tt.equals("y")) { Log.d("Here", "naive"); try { new Thread(new Runnable() { public void run() { todayslist_m = new MTWTHgetset(ctxt, "monday").getAllCredentials(); todayslist_t = new MTWTHgetset(ctxt, "tuesday").getAllCredentials(); todayslist_w = new MTWTHgetset(ctxt, "wednesday").getAllCredentials(); todayslist_th = new MTWTHgetset(ctxt, "thursday").getAllCredentials(); todayslist_fr = new MTWTHgetset(ctxt, "friday").getAllCredentials(); } }).start(); } catch (Exception e) { e.printStackTrace(); } } } @Override public void onBackPressed() { if (gd.isAdded()) getSupportFragmentManager() .beginTransaction().remove(gd).commit(); else super.onBackPressed(); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.drawer_frame_mvp); gd = new GetDetails(); if (savedInstanceState == null) { getSupportFragmentManager().beginTransaction().add(R.id.mvp_frame_act, gd).commit(); } try { list = new Slots_GetSet(this).getAllCredentials(); String classnbrs[] = new String[list.size()]; int r = 0; for (Model_Slots ms : list) { classnbrs[r++] = ms.getNumber().trim(); } for (int t = 0; t < classnbrs.length; t++) { detailattlist_subcode dr = new detailattlist_subcode(); hash.put(classnbrs[t], new IndivAttGetSet(this, " table_of_" + classnbrs[t]).getAllCredentials()); } } catch (Exception e) { e.printStackTrace(); } try { attendBriefs = new Attend_GetSet(this).getAllCredentials(); } catch (Exception e) { e.printStackTrace(); } try { marks_det = new CBL_Get_Set(this).getAllCredentials(); } catch (Exception e) { e.printStackTrace(); } try { lpbl = new PBL_Get_Set(this).getAllCredentials(); } catch (Exception e) { e.printStackTrace(); lpbl = new ArrayList<>(); } try { setMTWTFLists(getApplication()); } catch (Exception e) { e.printStackTrace(); } PrimaryDrawerItem item1 = new PrimaryDrawerItem().withName("Slots").withIdentifier(1); SecondaryDrawerItem item2 = new SecondaryDrawerItem().withName("ImageStudentLogin").withIdentifier(2); result = new DrawerBuilder() .withActivity(this) .addDrawerItems( item1, new DividerDrawerItem(), item2, new SecondaryDrawerItem().withName("Setup"), new SecondaryDrawerItem().withName("Daywise") ) .withOnDrawerItemClickListener(new Drawer.OnDrawerItemClickListener() { @Override public boolean onItemClick(View view, int position, IDrawerItem drawerItem) { displayView(position); if (result.isDrawerOpen()) result.closeDrawer(); return true; } }) .build(); } private void displayView(int position) { Fragment fragment = null; switch (position) { case 0: String s = getSharedPreferences("sp", Context.MODE_PRIVATE).getString("own", "no"); if (s.equals("already")) { fragment = new Fragment_slots(); } else if (s.equals("yes")) { list = new Slots_GetSet(getApplicationContext()).getAllCredentials(); fragment = new Fragment_slots(); } else if (s.equals("no")) { fragment = new GetDetails(); } break; case 2: fragment = new Photo_Stu(); break; case 3: fragment = new GetDetails(); break; case 4: fragment = MaterialVPFrag.newInstance(); break; default: fragment = MaterialVPFrag.newInstance(); break; } if (fragment != null) { FragmentManager fm = getSupportFragmentManager(); fm.beginTransaction().replace(R.id.mvp_frame_act, fragment).commit(); } else { Log.e("DrawerActivity", "Error creating fragment"); } } }
Fragment (where I encounter a delay (stuttering delay) when closing the drawer, after which it is replaced with another frame):
public class MaterialVPFrag extends Fragment { private MaterialViewPager mViewPager; public static MaterialVPFrag newInstance() { return new MaterialVPFrag(); } @Nullable @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { return inflater.inflate(R.layout.mvp_layout, container, false); } @Override public void onViewCreated(View view, @Nullable Bundle savedInstanceState) { mViewPager = (MaterialViewPager) view.findViewById(R.id.materialViewPager); mViewPager.getViewPager().setAdapter(new FragmentStatePagerAdapter(getChildFragmentManager()) { @Override public Fragment getItem(int position) { switch (position) { case 0: return new RecyclerViewFragment(mvpAct.todayslist_m); case 1: return new RecyclerViewFragment(mvpAct.todayslist_t); case 2: return new RecyclerViewFragment(mvpAct.todayslist_w); case 3: return new RecyclerViewFragment(mvpAct.todayslist_th); case 4: return new RecyclerViewFragment(mvpAct.todayslist_fr); default: return new RecyclerViewFragment(mvpAct.todayslist_m); } } @Override public int getCount() { return 5; } @Override public CharSequence getPageTitle(int position) { switch (position) { case 0: return "Monday"; case 1: return "Tuesday"; case 2: return "Wednesday"; case 3: return "Thursday"; case 4: return "Friday"; } return ""; } }); mViewPager.setMaterialViewPagerListener(new MaterialViewPager.Listener() { @Override public HeaderDesign getHeaderDesign(int page) { switch (page) { case 0: return HeaderDesign.fromColorAndDrawable(getResources().getColor(R.color.colorPrimary), getResources().getDrawable(R.drawable.myback)); case 1: return HeaderDesign.fromColorResAndUrl( R.color.blue, "http://cdn1.tnwcdn.com/wp-content/blogs.dir/1/files/2014/06/wallpaper_51.jpg"); case 2: return HeaderDesign.fromColorResAndUrl( R.color.cyan, "http://www.droid-life.com/wp-content/uploads/2014/10/lollipop-wallpapers10.jpg"); case 3: return HeaderDesign.fromColorResAndUrl( R.color.red, "http://www.tothemobile.com/wp-content/uploads/2014/07/original.jpg"); } return null; } }); mViewPager.getViewPager().setOffscreenPageLimit(mViewPager.getViewPager().getAdapter().getCount());
Internal fragment of ViewPager:
public class RecyclerViewFragment extends Fragment { private RecyclerView mRecyclerView; public static RecyclerView.Adapter mAdapter; List<Model_Daywise> list; public RecyclerViewFragment() { } public RecyclerViewFragment(List<Model_Daywise> lis) { list = lis; } @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { return inflater.inflate(R.layout.fragment_recyclerview, container, false); } @Override public void onViewCreated(View view, @Nullable Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); mRecyclerView = (RecyclerView) view.findViewById(R.id.recyclerView); LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity()); layoutManager.setOrientation(LinearLayoutManager.VERTICAL); mRecyclerView.setLayoutManager(layoutManager); mAdapter = new RecyclerViewMaterialAdapter(new CardAdapter_Daywise(list, getActivity())); mRecyclerView.setAdapter(mAdapter); MaterialViewPagerHelper.registerRecyclerView(getActivity(), mRecyclerView, null); } }
Thanks!