Select a standard transition animation for this transaction. May be one of TRANSIT_NONE, TRANSIT_FRAGMENT_OPEN, or TRANSIT_FRAGMENT_CLOSE

Set a custom style resource that will be used for resolving transit animations.

下面看一个示例：

1.主activity布局文件：

<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">

    <FrameLayout
            android:id="@+id/simple_fragment"
            android:layout_width="match_parent"
            android:layout_height="0px"
            android:layout_weight="1">
    </FrameLayout>

    <Button android:id="@+id/new_fragment"
        android:layout_width="wrap_content" android:layout_height="wrap_content"
        android:layout_weight="0" 
        android:text="@string/new_fragment">
        <requestFocus />
    </Button>

</LinearLayout>

2.主activity，包括一个fragment类：CountingFragment

public class FragmentCustomAnimations extends Activity {
    int mStackLevel = 1;

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

        // Watch for button clicks.
        Button button = (Button)findViewById(R.id.new_fragment);
        button.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                addFragmentToStack();
            }
        });

        if (savedInstanceState == null) {
            // Do first time initialization -- add initial fragment.
            Fragment newFragment = CountingFragment.newInstance(mStackLevel);
            FragmentTransaction ft = getFragmentManager().beginTransaction();
            ft.add(R.id.simple_fragment, newFragment).commit();
        } else {
            mStackLevel = savedInstanceState.getInt("level");
        }
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putInt("level", mStackLevel);
    }


    void addFragmentToStack() {
        mStackLevel++;

        // Instantiate a new fragment.
        Fragment newFragment = CountingFragment.newInstance(mStackLevel);

        // Add the fragment to the activity, pushing this transaction
        // on to the back stack.
        FragmentTransaction ft = getFragmentManager().beginTransaction();
        ft.setCustomAnimations(R.animator.fragment_slide_left_enter,
                R.animator.fragment_slide_left_exit,
                R.animator.fragment_slide_right_enter,
                R.animator.fragment_slide_right_exit);
        ft.replace(R.id.simple_fragment, newFragment);
        ft.addToBackStack(null);
        ft.commit();
    }



    public static class CountingFragment extends Fragment {
        int mNum;

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

            // 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.hello_world, container, false);
            View tv = v.findViewById(R.id.text);
            ((TextView)tv).setText("Fragment #" + mNum);
         
            return v;
        }
    }

}

2.用户fragment出入站时候的动画文件（在res/animator目录下的四个文件）：

   fragment_slide_left_enter.xml

<?xml version="1.0" encoding="utf-8"?>

<set xmlns:android="http://schemas.android.com/apk/res/android">
    <objectAnimator
        android:interpolator="@android:interpolator/decelerate_quint"
        android:valueFrom="100dp" android:valueTo="0dp"
        android:valueType="floatType"
        android:propertyName="translationX"
        android:duration="@android:integer/config_mediumAnimTime" />
    <objectAnimator
        android:interpolator="@android:interpolator/decelerate_quint"
        android:valueFrom="0.0" android:valueTo="1.0"
        android:valueType="floatType"
        android:propertyName="alpha"
        android:duration="@android:integer/config_mediumAnimTime" />
</set>

 fragment_slide_left_exit.xml

<set xmlns:android="http://schemas.android.com/apk/res/android">
    <objectAnimator
        android:interpolator="@android:interpolator/decelerate_quint"
        android:valueFrom="0dp" android:valueTo="-100dp"
        android:valueType="floatType"
        android:propertyName="translationX"
        android:duration="@android:integer/config_mediumAnimTime" />
    <objectAnimator
        android:interpolator="@android:interpolator/decelerate_quint"
        android:valueFrom="1.0" android:valueTo="0.0"
        android:valueType="floatType"
        android:propertyName="alpha"
        android:duration="@android:integer/config_mediumAnimTime" />
</set>

 fragment_slide_right_enter.xml：

<set xmlns:android="http://schemas.android.com/apk/res/android">
    <objectAnimator
        android:interpolator="@android:interpolator/decelerate_quint"
        android:valueFrom="-100dp" android:valueTo="0dp"
        android:valueType="floatType"
        android:propertyName="translationX"
        android:duration="@android:integer/config_mediumAnimTime" />
    <objectAnimator
        android:interpolator="@android:interpolator/decelerate_quint"
        android:valueFrom="0.0" android:valueTo="1.0"
        android:valueType="floatType"
        android:propertyName="alpha"
        android:duration="@android:integer/config_mediumAnimTime" />
</set>

 fragment_slide_right_exit.xml

<set xmlns:android="http://schemas.android.com/apk/res/android">
    <objectAnimator
        android:interpolator="@android:interpolator/decelerate_quint"
        android:valueFrom="0dp" android:valueTo="100dp"
        android:valueType="floatType"
        android:propertyName="translationX"
        android:duration="@android:integer/config_mediumAnimTime" />
    <objectAnimator
        android:interpolator="@android:interpolator/decelerate_quint"
        android:valueFrom="1.0" android:valueTo="0.0"
        android:valueType="floatType"
        android:propertyName="alpha"
        android:duration="@android:integer/config_mediumAnimTime" />
</set>