他のタブでファブを非表示にする

Question

ファブを他のタブで非表示にして、最初のタブでのみ表示するにはどうすればよいですか？私はGET_ARGUMENTSを使ってアクティビティを選択しています。助けてください。ここに私のコードです。ありがとう。

public class OwnerTabs extends AppCompatActivity { 
private SectionsPagerAdapter mSectionsPagerAdapter; 
private ViewPager mViewPager; 
SharedPreferences pref; 
SharedPreferences.Editor editor; 
private Button btnStart, btnStop; 
private TextView tvCoordinates; 
private BroadcastReceiver broadcastReceiver; 
FloatingActionButton fab; 

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


    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 
    setSupportActionBar(toolbar); 
    mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager()); 
    pref = getSharedPreferences("Login.conf", Context.MODE_PRIVATE); 

    mViewPager = (ViewPager) findViewById(R.id.container); 
    mViewPager.setAdapter(mSectionsPagerAdapter); 
    mViewPager.setOffscreenPageLimit(2); 

    TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs); 
    tabLayout.setupWithViewPager(mViewPager); 

    fab = (FloatingActionButton) findViewById(R.id.fab); 
    fab.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      Intent in = new Intent(OwnerTabs.this, InsertActivity.class); 
      startActivity(in); 
     } 
    }); 

} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 

    getMenuInflater().inflate(R.menu.menu_main,menu); 
    return super.onCreateOptionsMenu(menu); 
} 
@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    int id = item.getItemId(); 

    if(id == R.id.action_logout){ 
     editor = pref.edit(); 
     editor.clear(); 
     editor.commit(); 
     Intent in = new Intent (getApplicationContext(), MainActivity.class); 
     startActivity(in); 
     finish(); 
    } 

    return super.onOptionsItemSelected(item); 
} 


public static class PlaceholderFragment extends Fragment { 
    private static final String ARG_SECTION_NUMBER = "section_number"; 

    public PlaceholderFragment() { 
    } 

    public static PlaceholderFragment newInstance(int sectionNumber) { 
     PlaceholderFragment fragment = new PlaceholderFragment(); 
     Bundle args = new Bundle(); 
     args.putInt(ARG_SECTION_NUMBER, sectionNumber); 
     fragment.setArguments(args); 
     return fragment; 
    } 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
          Bundle savedInstanceState) { 

     if (getArguments().getInt(ARG_SECTION_NUMBER) == 1){ 
      View rootView = inflater.inflate(R.layout.content_ownerhome, container, false); 
      return rootView; 
     } 
     else if(getArguments().getInt(ARG_SECTION_NUMBER) == 2){ 
      View rootView = inflater.inflate(R.layout.content_rented, container, false); 
      return rootView; 
     } 
     else if (getArguments().getInt(ARG_SECTION_NUMBER) == 3){ 
      View rootView = inflater.inflate(R.layout.content_gps, container, false); 
      return rootView; 
     } 
     else { 

      View rootView = inflater.inflate(R.layout.fragment_owner_tabs, container, false); 
      TextView textView = (TextView) rootView.findViewById(R.id.section_label); 
      textView.setText(getString(R.string.section_format, getArguments().getInt(ARG_SECTION_NUMBER))); 
      return rootView; 
     } 
    } 
} 

public class SectionsPagerAdapter extends FragmentPagerAdapter { 

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

    @Override 
    public Fragment getItem(int position) { 
     return PlaceholderFragment.newInstance(position + 1); 
    } 

    @Override 
    public int getCount() { 
     // Show 3 total pages. 
     return 3; 
    } 

    @Override 
    public CharSequence getPageTitle(int position) { 
     switch (position) { 
      case 0: 
       return "Your Cars"; 
      case 1: 
       return "Pending Cars"; 
      case 2: 
       return "GPS"; 
     } 
     return null; 
    } 
} 

助けてくれてありがとう、お粗末なものではなく、親切な反応を期待してください。 :)

Answer 1

はhttp://stackoverflow.com/questions（タブ選択したリスナーに追加し、あなたがしたいタブインデックスに入れて、[viewpager/tabsliderとFABアニメーション]のfab.hide()