# FragmentStatePagerAdapter

added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  
belongs to Maven artifact com.android.support:support-v13:28.0.0-alpha1  
Deprecated since version 27.1.0  
Summary:[Inherited Constants](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#inhconstants)\|[Ctors](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#pubctors)\|[Methods](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#pubmethods)\|[Inherited Methods](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#inhmethods)\|[\[Expand All\]](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#)  

# FragmentStatePagerAdapter

| This package is part of the Android[support library](https://developer.android.com/topic/libraries/support-library)which is no longer maintained. The support library has been superseded by[AndroidX](https://developer.android.com/jetpack/androidx)which is part of[Jetpack](https://developer.android.com/jetpack). We recommend using the AndroidX libraries in all new projects. You should also consider[migrating](https://developer.android.com/jetpack/androidx/migrate)existing projects to AndroidX. To find the AndroidX class that maps to this deprecated class, see the AndroidX support library[class mappings](https://developer.android.com/jetpack/androidx/migrate/class-mappings).

`
public


abstract
class
FragmentStatePagerAdapter
`  
`


``

extends `[PagerAdapter](https://developer.android.com/reference/android/support/v4/view/PagerAdapter)`


``


`

|---|---|---------------------------------------------------|
| java.lang.Object                                        |||
| ↳ | [android.support.v4.view.PagerAdapter](https://developer.android.com/reference/android/support/v4/view/PagerAdapter) ||
|   | ↳ | android.support.v13.app.FragmentStatePagerAdapter |

<br />

*** ** * ** ***

<br />

**This class was deprecated in API level 27.1.0.**   
Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.

Implementation of[PagerAdapter](https://developer.android.com/reference/android/support/v4/view/PagerAdapter)that uses a[Fragment](https://developer.android.com/reference/android/app/Fragment.html)to manage each page. This class also handles saving and restoring of fragment's state.

This version of the pager is more useful when there are a large number of pages, working more like a list view. When pages are not visible to the user, their entire fragment may be destroyed, only keeping the saved state of that fragment. This allows the pager to hold on to much less memory associated with each visited page as compared to[FragmentPagerAdapter](https://developer.android.com/reference/android/support/v13/app/FragmentPagerAdapter)at the cost of potentially more overhead when switching between pages.

When using FragmentPagerAdapter the host ViewPager must have a valid ID set.

Subclasses only need to implement[getItem(int)](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#getItem(int))and[getCount()](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#getCount())to have a working adapter.

Here is an example implementation of a pager containing fragments of lists:  

```
public class FragmentStatePagerSupport extends FragmentActivity {
    static final int NUM_ITEMS = 10;

    MyAdapter mAdapter;

    ViewPager mPager;

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

        mAdapter = new MyAdapter(getSupportFragmentManager());

        mPager = (ViewPager)findViewById(R.id.pager);
        mPager.setAdapter(mAdapter);

        // Watch for button clicks.
        Button button = (Button)findViewById(R.id.goto_first);
        button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                mPager.setCurrentItem(0);
            }
        });
        button = (Button)findViewById(R.id.goto_last);
        button.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                mPager.setCurrentItem(NUM_ITEMS-1);
            }
        });
    }

    public static class MyAdapter extends FragmentStatePagerAdapter {
        public MyAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public int getCount() {
            return NUM_ITEMS;
        }

        @Override
        public Fragment getItem(int position) {
            return ArrayListFragment.newInstance(position);
        }
    }

    public static class ArrayListFragment extends ListFragment {
        int mNum;

        /**
         * Create a new instance of CountingFragment, providing "num"
         * as an argument.
         */
        static ArrayListFragment newInstance(int num) {
            ArrayListFragment f = new ArrayListFragment();

            // Supply num input as an argument.
            Bundle args = new Bundle();
            args.putInt("num", num);
            f.setArguments(args);

            return f;
        }

        /**
         * When creating, retrieve this instance's number from its arguments.
         */
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            mNum = getArguments() != null ? getArguments().getInt("num") : 1;
        }

        /**
         * The Fragment's UI is just a simple text view showing its
         * instance number.
         */
        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                Bundle savedInstanceState) {
            View v = inflater.inflate(R.layout.fragment_pager_list, container, false);
            View tv = v.findViewById(R.id.text);
            ((TextView)tv).setText("Fragment #" + mNum);
            return v;
        }

        @Override
        public void onActivityCreated(Bundle savedInstanceState) {
            super.onActivityCreated(savedInstanceState);
            setListAdapter(new ArrayAdapter<String>(getActivity(),
                    android.R.layout.simple_list_item_1, Cheeses.sCheeseStrings));
        }

        @Override
        public void onListItemClick(ListView l, View v, int position, long id) {
            Log.i("FragmentList", "Item clicked: " + id);
        }
    }
}
```

The`R.layout.fragment_pager`resource of the top-level fragment is:  

```
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:orientation="vertical" android:padding="4dip"
        android:gravity="center_horizontal"
        android:layout_width="match_parent" android:layout_height="match_parent">

    <android.support.v4.view.ViewPager
            android:id="@+id/pager"
            android:layout_width="match_parent"
            android:layout_height="0px"
            android:layout_weight="1">
    </android.support.v4.view.ViewPager>

    <LinearLayout android:orientation="horizontal"
            android:gravity="center" android:measureWithLargestChild="true"
            android:layout_width="match_parent" android:layout_height="wrap_content"
            android:layout_weight="0">
        <Button android:id="@+id/goto_first"
            android:layout_width="wrap_content" android:layout_height="wrap_content"
            android:text="@string/first">
        </Button>
        <Button android:id="@+id/goto_last"
            android:layout_width="wrap_content" android:layout_height="wrap_content"
            android:text="@string/last">
        </Button>
    </LinearLayout>
</LinearLayout>
```

The`R.layout.fragment_pager_list`resource containing each individual fragment's layout is:  

```
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:drawable/gallery_thumb">

    <TextView android:id="@+id/text"
        android:layout_width="match_parent" android:layout_height="wrap_content"
        android:gravity="center_vertical|center_horizontal"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="@string/hello_world"/>

    <!-- The frame layout is here since we will be showing either
    the empty view or the list view.  -->
    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="0dip"
        android:layout_weight="1" >
        <!-- Here is the list. Since we are using a ListActivity, we
             have to call it "@android:id/list" so ListActivity will
             find it -->
        <ListView android:id="@android:id/list"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:drawSelectorOnTop="false"/>

        <!-- Here is the view to show if the list is emtpy -->
        <TextView android:id="@android:id/empty"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:text="No items."/>

    </FrameLayout>

</LinearLayout>
```

<br />

## Summary

|                                                                                                                                                                                                                                                                                                                                                             ### Inherited constants                                                                                                                                                                                                                                                                                                                                                             |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [![](https://developer.android.com/static/assets/images/styles/disclosure_down.png)](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#)From class` `[android.support.v4.view.PagerAdapter](https://developer.android.com/reference/android/support/v4/view/PagerAdapter)` ` |-------|------------------------------------------------------------------------------------------------------------------------------| | `int` | [POSITION_NONE](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#POSITION_NONE) <br />           | | `int` | [POSITION_UNCHANGED](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#POSITION_UNCHANGED) <br /> | |

|                                                                                                                                                                                                                             ### Public constructors                                                                                                                                                                                                                              ||
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---|
| ` `[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#FragmentStatePagerAdapter(android.app.FragmentManager))`(`[FragmentManager](https://developer.android.com/reference/android/app/FragmentManager.html)` fm) ` *This constructor was deprecated in API level 27.1.0. Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.* |

|                                                                                                                                                                                                                                                                                    ### Public methods                                                                                                                                                                                                                                                                                    ||
|-------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ` void`                                                                                   | ` `[destroyItem](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#destroyItem(android.view.ViewGroup, int, java.lang.Object))`(`[ViewGroup](https://developer.android.com/reference/android/view/ViewGroup.html)` container, int position, Object object) ` *This method was deprecated in API level 27.1.0. Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.*       |
| ` void`                                                                                   | ` `[finishUpdate](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#finishUpdate(android.view.ViewGroup))`(`[ViewGroup](https://developer.android.com/reference/android/view/ViewGroup.html)` container) ` *This method was deprecated in API level 27.1.0. Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.*                                                         |
| ` abstract `[Fragment](https://developer.android.com/reference/android/app/Fragment.html) | ` `[getItem](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#getItem(int))`(int position) ` *This method was deprecated in API level 27.1.0. Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.*                                                                                                                                                                      |
| ` Object`                                                                                 | ` `[instantiateItem](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#instantiateItem(android.view.ViewGroup, int))`(`[ViewGroup](https://developer.android.com/reference/android/view/ViewGroup.html)` container, int position) ` *This method was deprecated in API level 27.1.0. Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.*                                |
| ` boolean`                                                                                | ` `[isViewFromObject](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#isViewFromObject(android.view.View, java.lang.Object))`(`[View](https://developer.android.com/reference/android/view/View.html)` view, Object object) ` *This method was deprecated in API level 27.1.0. Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.*                                    |
| ` void`                                                                                   | ` `[restoreState](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#restoreState(android.os.Parcelable, java.lang.ClassLoader))`(`[Parcelable](https://developer.android.com/reference/android/os/Parcelable.html)` state, ClassLoader loader) ` *This method was deprecated in API level 27.1.0. Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.*                   |
| ` `[Parcelable](https://developer.android.com/reference/android/os/Parcelable.html)       | ` `[saveState](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#saveState())`() ` *This method was deprecated in API level 27.1.0. Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.*                                                                                                                                                                                 |
| ` void`                                                                                   | ` `[setPrimaryItem](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#setPrimaryItem(android.view.ViewGroup, int, java.lang.Object))`(`[ViewGroup](https://developer.android.com/reference/android/view/ViewGroup.html)` container, int position, Object object) ` *This method was deprecated in API level 27.1.0. Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.* |
| ` void`                                                                                   | ` `[startUpdate](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#startUpdate(android.view.ViewGroup))`(`[ViewGroup](https://developer.android.com/reference/android/view/ViewGroup.html)` container) ` *This method was deprecated in API level 27.1.0. Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.*                                                           |

| ### Inherited methods |
|-----------------------|---|
| [![](https://developer.android.com/static/assets/images/styles/disclosure_down.png)](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#)From class` `[android.support.v4.view.PagerAdapter](https://developer.android.com/reference/android/support/v4/view/PagerAdapter)` ` |-------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` void`                                                                             | ` `[destroyItem](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#destroyItem(android.view.View, int, java.lang.Object))`(`[View](https://developer.android.com/reference/android/view/View.html)` container, int position, Object object) ` *This method was deprecated in API level 22.1.0. Use[destroyItem(ViewGroup, int, Object)](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#destroyItem(android.view.ViewGroup, int, java.lang.Object))*             | | ` void`                                                                             | ` `[destroyItem](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#destroyItem(android.view.ViewGroup, int, java.lang.Object))`(`[ViewGroup](https://developer.android.com/reference/android/view/ViewGroup.html)` container, int position, Object object) ` Remove a page for the given position.                                                                                                                                                                                            | | ` void`                                                                             | ` `[finishUpdate](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#finishUpdate(android.view.View))`(`[View](https://developer.android.com/reference/android/view/View.html)` container) ` *This method was deprecated in API level 22.1.0. Use[finishUpdate(ViewGroup)](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#finishUpdate(android.view.ViewGroup))*                                                                                                 | | ` void`                                                                             | ` `[finishUpdate](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#finishUpdate(android.view.ViewGroup))`(`[ViewGroup](https://developer.android.com/reference/android/view/ViewGroup.html)` container) ` Called when the a change in the shown pages has been completed.                                                                                                                                                                                                                    | | ` abstract int`                                                                     | ` `[getCount](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#getCount())`() ` Return the number of views available.                                                                                                                                                                                                                                                                                                                                                                        | | ` int`                                                                              | ` `[getItemPosition](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#getItemPosition(java.lang.Object))`(Object object) ` Called when the host view is attempting to determine if an item's position has changed.                                                                                                                                                                                                                                                                           | | ` CharSequence`                                                                     | ` `[getPageTitle](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#getPageTitle(int))`(int position) ` This method may be called by the ViewPager to obtain a title string to describe the specified page.                                                                                                                                                                                                                                                                                   | | ` float`                                                                            | ` `[getPageWidth](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#getPageWidth(int))`(int position) ` Returns the proportional width of a given page as a percentage of the ViewPager's measured width from (0.f-1.f\]                                                                                                                                                                                                                                                                      | | ` Object`                                                                           | ` `[instantiateItem](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#instantiateItem(android.view.ViewGroup, int))`(`[ViewGroup](https://developer.android.com/reference/android/view/ViewGroup.html)` container, int position) ` Create the page for the given position.                                                                                                                                                                                                                   | | ` Object`                                                                           | ` `[instantiateItem](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#instantiateItem(android.view.View, int))`(`[View](https://developer.android.com/reference/android/view/View.html)` container, int position) ` *This method was deprecated in API level 22.1.0. Use[instantiateItem(ViewGroup, int)](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#instantiateItem(android.view.ViewGroup, int))*                                                        | | ` abstract boolean`                                                                 | ` `[isViewFromObject](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#isViewFromObject(android.view.View, java.lang.Object))`(`[View](https://developer.android.com/reference/android/view/View.html)` view, Object object) ` Determines whether a page View is associated with a specific key object as returned by[instantiateItem(ViewGroup, int)](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#instantiateItem(android.view.ViewGroup, int)).           | | ` void`                                                                             | ` `[notifyDataSetChanged](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#notifyDataSetChanged())`() ` This method should be called by the application if the data backing this adapter has changed and associated views should update.                                                                                                                                                                                                                                                     | | ` void`                                                                             | ` `[registerDataSetObserver](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#registerDataSetObserver(android.database.DataSetObserver))`(`[DataSetObserver](https://developer.android.com/reference/android/database/DataSetObserver.html)` observer) ` Register an observer to receive callbacks related to the adapter's data changing.                                                                                                                                                   | | ` void`                                                                             | ` `[restoreState](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#restoreState(android.os.Parcelable, java.lang.ClassLoader))`(`[Parcelable](https://developer.android.com/reference/android/os/Parcelable.html)` state, ClassLoader loader) ` Restore any instance state associated with this adapter and its pages that was previously saved by[saveState()](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#saveState()).                                   | | ` `[Parcelable](https://developer.android.com/reference/android/os/Parcelable.html) | ` `[saveState](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#saveState())`() ` Save any instance state associated with this adapter and its pages that should be restored if the current UI state needs to be reconstructed.                                                                                                                                                                                                                                                              | | ` void`                                                                             | ` `[setPrimaryItem](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#setPrimaryItem(android.view.ViewGroup, int, java.lang.Object))`(`[ViewGroup](https://developer.android.com/reference/android/view/ViewGroup.html)` container, int position, Object object) ` Called to inform the adapter of which item is currently considered to be the "primary", that is the one show to the user as the current page.                                                                              | | ` void`                                                                             | ` `[setPrimaryItem](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#setPrimaryItem(android.view.View, int, java.lang.Object))`(`[View](https://developer.android.com/reference/android/view/View.html)` container, int position, Object object) ` *This method was deprecated in API level 22.1.0. Use[setPrimaryItem(ViewGroup, int, Object)](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#setPrimaryItem(android.view.ViewGroup, int, java.lang.Object))* | | ` void`                                                                             | ` `[startUpdate](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#startUpdate(android.view.ViewGroup))`(`[ViewGroup](https://developer.android.com/reference/android/view/ViewGroup.html)` container) ` Called when a change in the shown pages is going to start being made.                                                                                                                                                                                                                | | ` void`                                                                             | ` `[startUpdate](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#startUpdate(android.view.View))`(`[View](https://developer.android.com/reference/android/view/View.html)` container) ` *This method was deprecated in API level 22.1.0. Use[startUpdate(ViewGroup)](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#startUpdate(android.view.ViewGroup))*                                                                                                     | | ` void`                                                                             | ` `[unregisterDataSetObserver](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#unregisterDataSetObserver(android.database.DataSetObserver))`(`[DataSetObserver](https://developer.android.com/reference/android/database/DataSetObserver.html)` observer) ` Unregister an observer from callbacks related to the adapter's data changing.                                                                                                                                                   | ||
| [![](https://developer.android.com/static/assets/images/styles/disclosure_down.png)](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#)From class` java.lang.Object ` |-------------------|-------------------------------| | ` Object`         | ` clone() `                   | | ` boolean`        | ` equals(Object arg0) `       | | ` void`           | ` finalize() `                | | ` final Class<?>` | ` getClass() `                | | ` int`            | ` hashCode() `                | | ` final void`     | ` notify() `                  | | ` final void`     | ` notifyAll() `               | | ` String`         | ` toString() `                | | ` final void`     | ` wait(long arg0, int arg1) ` | | ` final void`     | ` wait(long arg0) `           | | ` final void`     | ` wait() `                    | ||

## Public constructors

### FragmentStatePagerAdapter

added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
FragmentStatePagerAdapter (FragmentManager fm)
```

<br />

**This constructor was deprecated in API level 27.1.0.**   
Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.

<br />

<br />

|           Parameters           ||
|------|--------------------------|
| `fm` | `FragmentManager` <br /> |

## Public methods

### destroyItem

added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
void destroyItem (ViewGroup container, 
                int position, 
                Object object)
```

<br />

**This method was deprecated in API level 27.1.0.**   
Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.

Remove a page for the given position. The adapter is responsible for removing the view from its container, although it only must ensure this is done by the time it returns from[finishUpdate(ViewGroup)](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#finishUpdate(android.view.ViewGroup)).

<br />

|                                                                                                      Parameters                                                                                                       ||
|-------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `container` | `ViewGroup`: The containing View from which the page will be removed. <br />                                                                                                                             |
| `position`  | `int`: The page position to be removed. <br />                                                                                                                                                           |
| `object`    | `Object`: The same object that was returned by[instantiateItem(View, int)](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#instantiateItem(android.view.View, int)). <br /> |

### finishUpdate

added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
void finishUpdate (ViewGroup container)
```

<br />

**This method was deprecated in API level 27.1.0.**   
Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.

Called when the a change in the shown pages has been completed. At this point you must ensure that all of the pages have actually been added or removed from the container as appropriate.

<br />

|                                             Parameters                                              ||
|-------------|----------------------------------------------------------------------------------------|
| `container` | `ViewGroup`: The containing View which is displaying this adapter's page views. <br /> |

### getItem

added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
Fragment getItem (int position)
```

<br />

**This method was deprecated in API level 27.1.0.**   
Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.

Return the Fragment associated with a specified position.

<br />

|        Parameters        ||
|------------|--------------|
| `position` | `int` <br /> |

|                                        Returns                                        ||
|-------------------------------------------------------------------------------|--------|
| [Fragment](https://developer.android.com/reference/android/app/Fragment.html) | <br /> |

### instantiateItem

added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
Object instantiateItem (ViewGroup container, 
                int position)
```

<br />

**This method was deprecated in API level 27.1.0.**   
Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.

Create the page for the given position. The adapter is responsible for adding the view to the container given here, although it only must ensure this is done by the time it returns from[finishUpdate(ViewGroup)](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#finishUpdate(android.view.ViewGroup)).

<br />

|                                      Parameters                                       ||
|-------------|--------------------------------------------------------------------------|
| `container` | `ViewGroup`: The containing View in which the page will be shown. <br /> |
| `position`  | `int`: The page position to be instantiated. <br />                      |

|                                                                   Returns                                                                   ||
|----------|-----------------------------------------------------------------------------------------------------------------------------------|
| `Object` | Returns an Object representing the new page. This does not need to be a View, but can be some other container of the page. <br /> |

### isViewFromObject

added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
boolean isViewFromObject (View view, 
                Object object)
```

<br />

**This method was deprecated in API level 27.1.0.**   
Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.

Determines whether a page View is associated with a specific key object as returned by[instantiateItem(ViewGroup, int)](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#instantiateItem(android.view.ViewGroup, int)). This method is required for a PagerAdapter to function properly.

<br />

|                                Parameters                                ||
|----------|----------------------------------------------------------------|
| `view`   | `View`: Page View to check for association with`object` <br /> |
| `object` | `Object`: Object to check for association with`view` <br />    |

|                                 Returns                                  ||
|-----------|---------------------------------------------------------------|
| `boolean` | true if`view`is associated with the key object`object` <br /> |

### restoreState

added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
void restoreState (Parcelable state, 
                ClassLoader loader)
```

<br />

**This method was deprecated in API level 27.1.0.**   
Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.

Restore any instance state associated with this adapter and its pages that was previously saved by[saveState()](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#saveState()).

<br />

|                                                                                       Parameters                                                                                       ||
|----------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `state`  | `Parcelable`: State previously saved by a call to[saveState()](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter#saveState()) <br /> |
| `loader` | `ClassLoader`: A ClassLoader that should be used to instantiate any restored objects <br />                                                                                  |

### saveState

added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
Parcelable saveState ()
```

<br />

**This method was deprecated in API level 27.1.0.**   
Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.

Save any instance state associated with this adapter and its pages that should be restored if the current UI state needs to be reconstructed.

<br />

|                                                        Returns                                                        ||
|----------------------------------------------------------------------------------|-------------------------------------|
| [Parcelable](https://developer.android.com/reference/android/os/Parcelable.html) | Saved state for this adapter <br /> |

### setPrimaryItem

added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
void setPrimaryItem (ViewGroup container, 
                int position, 
                Object object)
```

<br />

**This method was deprecated in API level 27.1.0.**   
Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.

Called to inform the adapter of which item is currently considered to be the "primary", that is the one show to the user as the current page. This method will not be invoked when the adapter contains no items.

<br />

|                                                                                                      Parameters                                                                                                       ||
|-------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `container` | `ViewGroup`: The containing View from which the page will be removed. <br />                                                                                                                             |
| `position`  | `int`: The page position that is now the primary. <br />                                                                                                                                                 |
| `object`    | `Object`: The same object that was returned by[instantiateItem(View, int)](https://developer.android.com/reference/android/support/v4/view/PagerAdapter#instantiateItem(android.view.View, int)). <br /> |

### startUpdate

added in[version 22.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
void startUpdate (ViewGroup container)
```

<br />

**This method was deprecated in API level 27.1.0.**   
Use[FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter)instead.

Called when a change in the shown pages is going to start being made.

<br />

|                                             Parameters                                              ||
|-------------|----------------------------------------------------------------------------------------|
| `container` | `ViewGroup`: The containing View which is displaying this adapter's page views. <br /> |

-

  ## Interfaces

  - [FragmentCompat.OnRequestPermissionsResultCallback](https://developer.android.com/reference/android/support/v13/app/FragmentCompat.OnRequestPermissionsResultCallback)
  - [FragmentCompat.PermissionCompatDelegate](https://developer.android.com/reference/android/support/v13/app/FragmentCompat.PermissionCompatDelegate)
-

  ## Classes

  - [ActivityCompat](https://developer.android.com/reference/android/support/v13/app/ActivityCompat)
  - [FragmentCompat](https://developer.android.com/reference/android/support/v13/app/FragmentCompat)
  - [FragmentPagerAdapter](https://developer.android.com/reference/android/support/v13/app/FragmentPagerAdapter)
  - [FragmentStatePagerAdapter](https://developer.android.com/reference/android/support/v13/app/FragmentStatePagerAdapter)
  - [FragmentTabHost](https://developer.android.com/reference/android/support/v13/app/FragmentTabHost)