안드로이드 스튜디오 질문)) ViewPager가 안 보입니다.

Question

ViewPager와 ToolBar의 TabLayout을 이용하여 Swipe Activity를 구현하는 과정에서 문제가 생겼습니다. ViewPager가 내용물 Fragment를 화면에 표시하지 않습니다. 빠트린 내용이나 잘못된 부분을 아시는 분께서는 부디 알려주셨으면 좋겠습니다. 부탁드립니다 _ _) 아래는 MyViewPagerAdapter.java 입니다. ```package com.zer0kencreation.macaronpicker; import android.support.v4.app.Fragment;import android.support.v4.app.FragmentManager;import android.support.v4.app.FragmentStatePagerAdapter; public class MyViewPagerAdapter extends FragmentStatePagerAdapter { public MyViewPagerAdapter(FragmentManager fm) { super(fm); } @Override public Fragment getItem(int position) { switch (position){ case 0: return new OthersFragment(); case 1: return new MineFragment(); case 2: return new ReceiverFragment(); case 3: return new GiverFragment(); } return null; } @Override public int getCount() { return 4; }} ``` 아래는 MainActivity.java입니다. ```package com.zer0kencreation.macaronpicker; import android.support.design.widget.TabLayout;import android.support.v4.view.ViewPager;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.support.v7.widget.Toolbar; public class MainActivity extends AppCompatActivity { private Toolbar mainTB; private TabLayout mainTL; private ViewPager mainVP; private MyViewPagerAdapter vpAdapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mainTB = (Toolbar)findViewById(R.id.main_tb); setSupportActionBar(mainTB); mainTL = (TabLayout)findViewById(R.id.main_tl); mainVP = (ViewPager)findViewById(R.id.main_vp); vpAdapter = new MyViewPagerAdapter(getSupportFragmentManager()); mainVP.setAdapter(vpAdapter); mainVP.setCurrentItem(0); mainTL.addOnTabSelectedListener(new TabLayout.OnTabSelectedListener() { @Override public void onTabSelected(TabLayout.Tab tab) { switch (tab.getPosition()){ case 0: mainVP.setCurrentItem(0); break; case 1: mainVP.setCurrentItem(1); break; case 2: mainVP.setCurrentItem(2); break; case 3: mainVP.setCurrentItem(3); break; } } @Override public void onTabUnselected(TabLayout.Tab tab) { } @Override public void onTabReselected(TabLayout.Tab tab) { } }); }} ``` 아래는 각 Fragment의 class입니다. [OhterFragment.java]```package com.zer0kencreation.macaronpicker; import android.os.Bundle;import android.support.annotation.Nullable;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup; public class OthersFragment extends android.support.v4.app.Fragment { public OthersFragment(){ } @Override public void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { return inflater.inflate(R.layout.fragment_others, container, false); }} ```[MineFragment.java]```package com.zer0kencreation.macaronpicker; import android.os.Bundle;import android.support.annotation.Nullable;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup; public class MineFragment extends android.support.v4.app.Fragment { public MineFragment(){ } @Override public void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { return inflater.inflate(R.layout.fragment_mine, container, false); }} ```[ReceiverFragment.java]```package com.zer0kencreation.macaronpicker; import android.os.Bundle;import android.support.annotation.Nullable;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup; public class ReceiverFragment extends android.support.v4.app.Fragment { public ReceiverFragment(){ } @Override public void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { return inflater.inflate(R.layout.fragment_receiver, container, false); }} ```[GiverFragment.java]```package com.zer0kencreation.macaronpicker; import android.os.Bundle;import android.support.annotation.Nullable;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup; public class GiverFragment extends android.support.v4.app.Fragment { public GiverFragment(){ } @Override public void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { return inflater.inflate(R.layout.fragment_giver, container, false); }} ``` 아래는 activity_main.xml입니다.``` ``` 아래는 각 Fragment의 layout입니다. [fragment_others.xml] ```

안드로이드 스튜디오 질문)) ViewPager가 안 보입니다.

0개의 답변

#viewpager 목록