[Android] Cómo implementar un ViewPager con diferentes Fragmentos / Diseños



Answers

Cree una matriz de Vistas y aplique a: container.addView(viewarr[position]);

public class Layoutes extends PagerAdapter {

    private Context context;
    private LayoutInflater layoutInflater;
    Layoutes(Context context){
        this.context=context;
    }
    int layoutes[]={R.layout.one,R.layout.two,R.layout.three};
    @Override
    public int getCount() {
        return layoutes.length;
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return (view==(LinearLayout)object);
    }
    @Override
    public Object instantiateItem(ViewGroup container, int position){
        layoutInflater=(LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View one=layoutInflater.inflate(R.layout.one,container,false);
        View two=layoutInflater.inflate(R.layout.two,container,false);
        View three=layoutInflater.inflate(R.layout.three,container,false);
        View viewarr[]={one,two,three};
        container.addView(viewarr[position]);
        return viewarr[position];
    }
    @Override
    public void destroyItem(ViewGroup container, int position, Object object){
        container.removeView((LinearLayout) object);
    }

}
Question

Cuando comienzo una actividad que implementa viewpager, el viewpager creó varios fragmentos. Quiero usar diferentes diseños para cada fragmento, pero el problema es que viewpager muestra solo dos diseños al máximo (segundo diseño en todos los fragmentos restantes después de 1).

Aquí está el código para SwipeActivity que implementa el viewpager:

public class SwipeActivity extends FragmentActivity
{

    MyPageAdapter pageAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_swipe);
        pageAdapter = new MyPageAdapter(getSupportFragmentManager());
        ViewPager pager=(ViewPager)findViewById(R.id.pager);
        pager.setAdapter(pageAdapter);
        ActionBar bar = getActionBar();
        bar.setDisplayHomeAsUpEnabled(true);
    }
    /**
    * Custom Page adapter
    */
    private class MyPageAdapter extends FragmentPagerAdapter
    {
        public MyPageAdapter(FragmentManager fm)
        {
            super(fm);
        }
        @Override
        public int getCount()
        {
            return 5;
        }
        @Override
        public Fragment getItem(int position)
        {
            switch(position)
            {
                case 0: return new MyFragment();
                case 1: return SecondFragment.newInstance("asdasd");
                default : return RamFragment.newInstance("s");
            }
        }
     }
}

Aquí está el código para los fragmentos

public class MyFragment extends Fragment
{
   @Override
   public View onCreateView(LayoutInflater paramLayoutInflater, ViewGroup paramViewGroup,    Bundle paramBundle)
   {
     return paramLayoutInflater.inflate(R.layout.processorlayout, paramViewGroup, false);
   }
}

Utilicé 5 fragmentos como este, todos con diferentes diseños, pero el visor muestra solo 2 al máximo.

EDIT : código para SecondFragment

public class SecondFragment extends Fragment
{
   public static final String EXTRA_MESSAGE = "EXTRA_MESSAGE";

  public static final SecondFragment newInstance(String paramString)
  {
    SecondFragment f = new SecondFragment();
    Bundle localBundle = new Bundle(1);
    localBundle.putString("EXTRA_MESSAGE", paramString);
    f.setArguments(localBundle);
    return f;
  }

  @Override
  public View onCreateView(LayoutInflater paramLayoutInflater, ViewGroup paramViewGroup, Bundle paramBundle)
  {
     return paramLayoutInflater.inflate(R.layout.motherboardlayout, paramViewGroup, false);
  }
}



Esto también está bien:

<android.support.v4.view.ViewPager
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/viewPager"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    />
public class MainActivity extends FragmentActivity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main_activity);

        ViewPager pager = (ViewPager) findViewById(R.id.viewPager);
        pager.setAdapter(new MyPagerAdapter(getSupportFragmentManager()));

    }
}


public class FragmentTab1 extends Fragment {
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragmenttab1, container, false);
        return rootView;
    }
}

class MyPagerAdapter extends FragmentPagerAdapter{

    public MyPagerAdapter(FragmentManager fragmentManager){
        super(fragmentManager);

    }
    @Override
    public android.support.v4.app.Fragment getItem(int position) {
        switch(position){
            case 0:
                FragmentTab1 fm =   new FragmentTab1();
                return fm;
            case 1: return new FragmentTab2();
            case 2: return new FragmentTab3();
        }
        return null;
    }

    @Override
    public int getCount() {
        return 3;
    }
}
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:text="@string/Fragment1" />

</RelativeLayout>



Crea nuevas instancias en tus fragmentos y haz eso en tu Actividad

 private class SlidePagerAdapter extends FragmentStatePagerAdapter {
    public SlidePagerAdapter(FragmentManager fm) {
        super(fm);
    }

    @Override
    public Fragment getItem(int position) {
        switch(position){
            case 0:
                return Fragment1.newInstance();
            case 1:
                return Fragment2.newInstance();
            case 2:
                return Fragment3.newInstance();
            case 3:
                return Fragment4.newInstance();


            default: break;

        }
        return null;
    }



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