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Просмотр пейджера, показывающего пустой

2017-01-21 6 views
-1

У меня есть 5 фрагментов, которые я хочу использовать пейджер с представлением и пропустить. Когда я запускаю приложение, есть 5 скользящих действий, но все они пусты.Просмотр пейджера, показывающего пустой

MainActivity.java

public class MainActivity extends AppCompatActivity { 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 



    ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager); 
    viewPager.setAdapter(new CustomPagerAdapter(this)); 

} 

public static class GridSpacingItemDecoration extends RecyclerView.ItemDecoration { 
    private int spanCount; 
    private int spacing; 
    private boolean includeEdge; 

    public GridSpacingItemDecoration(int spanCount, int spacing, boolean includeEdge) { 
     this.spanCount = spanCount; 
     this.spacing = spacing; 
     this.includeEdge = includeEdge; 
    } 

    @Override 
    public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) { 
     int position = parent.getChildAdapterPosition(view); // item position 
     int column = position % spanCount; // item column 

     if (includeEdge) { 
      outRect.left = spacing - column * spacing/spanCount; // spacing - column * ((1f/spanCount) * spacing) 
      outRect.right = (column + 1) * spacing/spanCount; // (column + 1) * ((1f/spanCount) * spacing) 

      if (position < spanCount) { // top edge 
       outRect.top = spacing; 
      } 
      outRect.bottom = spacing; // item bottom 
     } else { 
      outRect.left = column * spacing/spanCount; // column * ((1f/spanCount) * spacing) 
      outRect.right = spacing - (column + 1) * spacing/spanCount; // spacing - (column + 1) * ((1f/ spanCount) * spacing) 
      if (position >= spanCount) { 
       outRect.top = spacing; // item top 
      } 
     } 
    } 
}}

Blood.java

public class Blood extends Fragment { 

public Blood(){} 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

} 

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 
    // Inflate the layout for this fragment 
    View view = inflater.inflate(R.layout.activity_blood, container, false); 

    String [] pname = {"Dil Kapoor","Kunal Sharma","Manish Jumle","Vikram Sharma","Varun Surya", 
      "Vishant","Varsha","Vivek Rawat","Deepak Duggal","Vikas Chauhan","Piyush Pachori","Vishesh Sagar","Ramesh Kumar Jain","Pooja Sethi","Dusmanta Nayak"}; 
    String [] phno={"Ph: 9810383305","Ph: 9911090955","Ph: 7053029216","Ph: 9717709787","Ph: 9910308217","Ph: 9958893461","Ph: 9999106564","Ph: 8527063021","Ph: 9910026715","Ph: 9999597059","Ph: 9654758509","Ph: 9999991434","Ph: 9910350461","Ph: 9868091610","Ph: " + 
      "9250079218"}; 
    String [] btype = {"Blood Group: O+","Blood Group: AB-","Blood Group: AB+","Blood Group: A+","Blood Group: A+","Blood Group: AB-","Blood Group: B-","Blood Group: AB+","Blood Group: O-","Blood Group: O+","Blood Group: A1B+","Blood Group: AB-","Blood Group: B-","Blood Group: A1B-","Blood Group: A+"}; 
    String[] pincode ={"110059","110058","110058","110059","110058","110056","110059","110058","110059","110060","110059","110060","110059","110058","110060"}; 


    ArrayList<BloodObject> marray = new ArrayList<>(); 
    RecyclerView mRecyclerView = (RecyclerView) getActivity().findViewById(R.id.recycler_viewblood); 
    LinearLayoutManager mlLinearLayoutManager = new LinearLayoutManager(getActivity()); 

    mRecyclerView.setLayoutManager(mlLinearLayoutManager); 
    mRecyclerView.setHasFixedSize(true); 

    for(int i=0;i<pname.length;i++) 
    { 
     marray.add(new BloodObject(pname[i],phno[i],pincode[i],btype[i])); 

    } 

    BloodAdapter mBloodAdapter = new BloodAdapter(marray); 

    mRecyclerView.setAdapter(mBloodAdapter); 

    return view; 

}}

HomeFragment.java

public class HomeFragment extends Fragment { 

FloatingActionMenu fabMenu; 
FloatingActionButton fab_search, fab_traker, fab_cart, fab_symptoms, fab_refils, fab_remainder; 
RecyclerView recyclerView; 
private ArrayList<CustomerHome> mList; 
private CustomerHomePageAdapter mAdapter; 

private String[] title = {"Order Medicines" , "Daily Use" , "Nutrition" , "Body Care" , "Baby Nutrition", "First Aid"}; 
private int[] imageResourceId = {R.drawable.ic_firstaid , 
     R.drawable.ic_baby , 
     R.drawable.ic_nutrition, 
     R.drawable.ic_cosmetics, 
     R.drawable.ic_nutrition, 
     R.drawable.ic_presription 

}; 

public HomeFragment() { 
    // Required empty public constructor 
} 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

} 

private int dpToPx(int dp) { 
    Resources r = getResources(); 
    return Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, r.getDisplayMetrics())); 
} 

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 
    // Inflate the layout for this fragment 
    View view = inflater.inflate(R.layout.fragment_home, container, false); 

    mList = new ArrayList<>(); 
    for(int i = 0 ; i<title.length ; i++) 
    { 
     mList.add(new CustomerHome(title[i],imageResourceId[i])); 
    } 


    recyclerView = (RecyclerView) getActivity().findViewById(R.id.recycler_view); 
    mAdapter = new CustomerHomePageAdapter(getActivity() , mList); 
    RecyclerView.LayoutManager mLayoutManager = new GridLayoutManager(getActivity(), 2); 
    recyclerView.setLayoutManager(mLayoutManager); 
    recyclerView.setItemAnimator(new DefaultItemAnimator()); 
    recyclerView.addItemDecoration(new MainActivity.GridSpacingItemDecoration(2, dpToPx(10), true)); 
    recyclerView.setAdapter(mAdapter); 


    fabMenu = (FloatingActionMenu) getActivity().findViewById(R.id.fab_menu); 

    fab_search = (FloatingActionButton) getActivity().findViewById(R.id.fab_search); 
    fab_traker = (FloatingActionButton) getActivity().findViewById(R.id.fab_health_tracker); 
    fab_cart = (FloatingActionButton) getActivity().findViewById(R.id.fab_cart); 
    fab_symptoms = (FloatingActionButton) getActivity().findViewById(R.id.fab_symptoms); 
    fab_refils = (FloatingActionButton) getActivity().findViewById(R.id.fab_refils); 
    fab_remainder = (FloatingActionButton) getActivity().findViewById(R.id.fab_remainder); 

    fab_remainder.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      Toast.makeText(getActivity(), "Remainder Feature coming soon", Toast.LENGTH_SHORT).show(); 

     } 
    }); 

    fab_refils.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      Toast.makeText(getActivity(), "Refils Feature coming soon", Toast.LENGTH_SHORT).show(); 

     } 
    }); 

    fab_symptoms.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      Toast.makeText(getActivity(), "Symptoms checker Feature coming soon", Toast.LENGTH_SHORT).show(); 

     } 
    }); 

    fab_traker.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      Toast.makeText(getActivity(), "Health Tracker Feature coming soon", Toast.LENGTH_SHORT).show(); 

     } 
    }); 

    fab_cart.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      Toast.makeText(getActivity(), "Cart Feature coming soon", Toast.LENGTH_SHORT).show(); 

     } 
    }); 

    fab_search.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      Toast.makeText(getActivity(), "Search Feature coming soon", Toast.LENGTH_SHORT).show(); 

     } 
    }); 

    return view; 

}}

Hospital.java

public class Hospital extends Fragment { 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

} 


@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 
    // Inflate the layout for this fragment 
    View view = inflater.inflate(R.layout.activity_hospital, container, false); 

    String hname[] ={" AIIMS "," Indraprastha Apollo Hospital"," Max Superspecialty Hospital"," Sir Ganga Ram Hospital"," Medanta - The Medicity", 
      " GB Pant Hospital"," Fortis Hospital"," Dr. Ram Manohar Lohia Hospital"," BLK Super Specialty Hospital"," Batra Hospital "}; 
    String hspec[] ={" SPECIALISATION: Gal Bladder/Kidney Transplant/Cardiologist"," SPECIALISATION: Kidney Transplant/Cardiologist/Spine Chord Specialist"," SPECIALISATION: Cardiologist/ Spine Chord Specialist/Neurologist"," SPECIALISATION: Neurologist/Orthopedic/Liver Transplant"," SPECIALISATION: Liver Transplant/Orthopedic/Cardiologist", 
      " SPECIALISATION: Autograft/Skin Specialist/Spin Chord Specialist"," SPECIALISATION: Skin Specialist/Cardiologist/Cancer"," SPECIALISATION: Spine Chord Specialist/Skin Care/Orthopedic"," SPECIALISATION: Cardiologist/Skin Care/Spine Chord Specialist"," SPECIALISATION: Orthopedic/Cardiologist/Cancer"}; 
    int hpin[] ={110029,110076,110017,110060,122001,110002,201301,110001,110005,110062}; 
    String hcontno[] ={" Ph: 18602583010"," Ph: +91-11-29871090/1091"," Ph: +91 11 4055 4055"," Ph: +91 11-25750000"," Ph: +91 124 414 1414"," Ph: +91 11 2323 4242"," Ph: +911204300222"," Ph: 011-23365525"," Ph: +91 11 3040 3040"," Ph: 91-11-2995 8747"}; 

    ArrayList<HospitalObject> marray = new ArrayList<>(); 
    RecyclerView mRecyclerView = (RecyclerView) getActivity().findViewById(R.id.recycler_view); 
    LinearLayoutManager mLinearLayoutManager = new LinearLayoutManager(getActivity()); 

    mRecyclerView.setLayoutManager(mLinearLayoutManager); 
    mRecyclerView.setHasFixedSize(true); 

    for(int i=0;i<hname.length;i++) 
    { 
     marray.add(new HospitalObject(hname[i],hspec[i],hpin[i],hcontno[i])); 
    } 

    HospitalAdapter mHospitalAdapter = new HospitalAdapter(marray); 

    mRecyclerView.setAdapter(mHospitalAdapter); 

    return view; 

}}

Это единственные фрагменты, которые закодированы. Остальные два фрагмента пустые У меня есть большое чувство, что я сделал что-то не так во фрагментах.

Пожалуйста, помогите мне с этим

CustomPagerAdapter.java

public class CustomPagerAdapter extends PagerAdapter { 

private Context mContext; 
public CustomPagerAdapter(Context context) { 
    mContext = context; 
} 

@Override 
public Object instantiateItem(ViewGroup collection, int position) { 
    ModelObject modelObject = ModelObject.values()[position]; 
    LayoutInflater inflater = LayoutInflater.from(mContext); 
    ViewGroup layout = (ViewGroup) inflater.inflate(modelObject.getLayoutResId(), collection, false); 
    collection.addView(layout); 
    return layout; 
} 

@Override 
public void destroyItem(ViewGroup collection, int position, Object view) { 
    collection.removeView((View) view); 
} 

@Override 
public int getCount() { 
    return ModelObject.values().length; 
} 

@Override 
public boolean isViewFromObject(View view, Object object) { 
    return view == object; 
} 

@Override 
public CharSequence getPageTitle(int position) { 
    ModelObject customPagerEnum = ModelObject.values()[position]; 
    return mContext.getString(customPagerEnum.getTitleResId()); }}

ModelObject.java

public enum ModelObject { 

HOME(R.string.home, R.layout.fragment_home), 
BLOOD(R.string.blood, R.layout.activity_blood), 
HOSPITAL(R.string.hospital, R.layout.activity_hospital), 
NEWS(R.string.news, R.layout.activity_news), 
ABOUT(R.string.about, R.layout.activity_about_customer); 

private int mTitleResId; 
private int mLayoutResId; 

ModelObject(int titleResId, int layoutResId) { 
    mTitleResId = titleResId; 
    mLayoutResId = layoutResId; 
} 

public int getTitleResId() { 
    return mTitleResId; 
} 

public int getLayoutResId() { 
    return mLayoutResId; 
}}

источник

2017-01-21 Sri Ram

+0

отправьте код, в котором вы настроили пейджер представления в своей деятельности. –

ответ

0

вы можете попробовать использовать support.v4 фрагмента; FragmentActivity; FragmentManager; FragmentPagerAdapter;

import java.util.ArrayList; 
import java.util.Date; 
import java.util.HashMap; 

import android.content.Intent; 
import android.os.Bundle; 
import android.os.Handler; 
import android.support.v4.app.Fragment; 
import android.support.v4.app.FragmentActivity; 
import android.support.v4.app.FragmentManager; 
import android.support.v4.app.FragmentPagerAdapter; 
import android.support.v4.view.ViewPager; 
import android.widget.RadioGroup; 
import android.widget.Toast; 

public class MainActivity extends FragmentActivity { 
    private static final String TAG = LogUtil.makeLogTag(MainActivity.class); 

    private HomeFragment homeFragment; 
    private ChageFragment chageFragment; 
    private RankingFragment rankingFragment; 
    private AntivirusFragment antivirusFragment; 

    private ViewPager fragment_container; 
    private RadioGroup rg_tab; 
    private LocationInfoBean locatbean; 
    private ArrayList<Fragment> fragList = new ArrayList<Fragment>(); 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     initView(); 
     initViewPager(); 
     initListener(); 
    } 

    private void initView() { 
     fragment_container = (ViewPager) findViewById(R.id.fragment_container); 
     rg_tab = (RadioGroup) findViewById(R.id.rg_tab); 

     homeFragment = new HomeFragment(); 
     antivirusFragment = new AntivirusFragment(); 
     rankingFragment = new RankingFragment(); 
     chageFragment = new ChageFragment(); 

     fragList.add(homeFragment); 
     fragList.add(chageFragment); 
     fragList.add(rankingFragment); 
     fragList.add(antivirusFragment); 

    } 

    private void initViewPager() { 
     { 
      MyFragmentPagerAdapter fAdapter = new MyFragmentPagerAdapter(
        getSupportFragmentManager()); 

      fragment_container.setOffscreenPageLimit(3); 
      fragment_container.setAdapter(fAdapter); 
      fragment_container 
        .addOnPageChangeListener(new ViewPager.OnPageChangeListener() { 
         @Override 
         public void onPageScrolled(int position, 
           float positionOffset, int positionOffsetPixels) { 

         } 

         @Override 
         public void onPageSelected(int position) { 
          switch (position) { 
          case 0: 
           rg_tab.check(R.id.rb_home); 
           break; 
          case 1: 
           rg_tab.check(R.id.rb_chage); 
           break; 
          case 2: 
           rg_tab.check(R.id.rb_ranking); 
           break; 
          case 3: 
           rg_tab.check(R.id.rb_antivirus); 
           break; 
          } 

         } 

         @Override 
         public void onPageScrollStateChanged(int state) { 

         } 
        }); 

      fragment_container.setCurrentItem(0); 
     } 
    } 

    private void initListener() { 
     rg_tab.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { 

      @Override 
      public void onCheckedChanged(RadioGroup group, int checkedId) { 
       switch (checkedId) { 
       case R.id.rb_home: 
        fragment_container.setCurrentItem(0); 
        break; 
       case R.id.rb_chage: 
        fragment_container.setCurrentItem(1); 
        break; 
       case R.id.rb_ranking: 
        fragment_container.setCurrentItem(2); 
        break; 
       case R.id.rb_antivirus: 
        fragment_container.setCurrentItem(3); 
        break; 
       } 
      } 
     }); 
    } 

    private long aw; 
    @Override 
    public void onBackPressed() { 
     long time = new Date().getTime(); 
     if (time - this.aw < 2000) { 
      finish(); 
      new Handler().postDelayed(new Runnable() { 

       @Override 
       public void run() { 
        System.exit(0); 
       } 
      }, 200); 
     } else { 
      this.aw = time; 
      if (!isFinishing()) { 
       Toast.makeText(this, 
         getResources().getString(R.string.quithint), 
         Toast.LENGTH_SHORT).show(); 
      } 
     } 

    } 

    class MyFragmentPagerAdapter extends FragmentPagerAdapter { 

     public MyFragmentPagerAdapter(FragmentManager fm) { 
      super(fm); 
     } 

     @Override 
     public Fragment getItem(int arg0) { 
      return fragList.get(arg0); 
     } 

     @Override 
     public int getCount() { 
      return fragList.size(); 
     } 

    } 
}

Возможно, у него есть много ошибок, замените фрагмент.

источник

2017-01-22 04:09:59 liangDong

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