APP启动引导页的制作,用ViewPager实现翻页动画

//1. Context 类中的 getSharedPreferences()方法
public abstract SharedPreferences getSharedPreferences
(String name,int mode);

//2. Activity 类中的 getPreferences()方法
    public SharedPreferences getPreferences(int mode) {
        return getSharedPreferences(getLocalClassName(), mode);
    }

//3. PreferenceManager 类中的 getDefaultSharedPreferences()方法
    public static SharedPreferences getDefaultSharedPreferences(Context context) {
        return context.getSharedPreferences(
getDefaultSharedPreferencesName(context)
,getDefaultSharedPreferencesMode());
    }

SharedPreferences.Editor editor = sharedPreferences.edit();
//通过SharedPreferences的实例取得Editor
        editor.putBoolean("isRead", true);
        //放入数据，提供各类put方法对应不同类型的数据，按键值对进行输入
        editor.commit();
        //调用调用 commit()方法将添加的数据立即提交，不过AS推荐使用apply()，区别请看下方网址

SharedPreferences pref = getSharedPreferences("data",MODE_PRIVATE);
String name = pref.getString("name", "");
int age = pref.getInt("age", 0);
boolean married = pref.getBoolean("married", false);

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.view.ViewPager
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/pager"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/colorPrimary">

</android.support.v4.view.ViewPager>

public class StartActivity extends FragmentActivity {
    public static final int PAGE_NUM = 2;
    private FragmentPagerAdapter mAdapter;
    private ViewPager mViewPager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        Log.i(TAG, "onCreate: ");

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_start);

        mViewPager = (ViewPager) findViewById(R.id.pager);
        //①通过布局实例化ViewPager
        mViewPager.setPageTransformer(true, new ZoomOutPageTransformer());
        //②添加动画效果
        mAdapter = new StartPagerAdapter(getSupportFragmentManager());
        //③通过子类实例化FragmentPagerAdapter
        mViewPager.setAdapter(mAdapter);
        //④绑定Adapter
    }
}

public class StartPagerAdapter extends FragmentPagerAdapter {

    String TAG = getClass().getSimpleName();

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

    @Override
    public int getCount() {
        return StartActivity.PAGE_NUM;
    }

    @Override
    public Fragment getItem(int position) {
        Log.i(TAG, "getItem: " + position);
        if (position == 0) {
            return new PageOneFragment();
        } else {
            return new PageTwoFragment();
        }
    }
}