引导界面（APP启动几张图后跳转）

与闪屏界面同用一个基类base和一个APP类
看闪屏界面的

Activity中

 public class MainActivity extends Base {
   private MainPagerAdapter adapter;
  private ViewPager mPager;

@Override   //设置全局
protected void init() {
    //全屏
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN );
    //判断启动的界面
    SharedPreferences sp=getSharedPreferences("appstar",MODE_PRIVATE);
    //用于记录是否第一次启动  isFirst
    boolean isFirst=sp.getBoolean("isFirst",true);

    Intent intent = getIntent();
    boolean help=intent.getBooleanExtra("help",false);

    if (isFirst || help){
        //记录状态，表示启动过
     sp.edit().putBoolean("isFirst",false).commit();
    }else {
     openActivity(ShanActivity.class,true);
    }

}

@Override
protected void setListaner() {
   mPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {

       private Timer timer;

       @Override
       public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

       }

       @Override
       public void onPageSelected(int position) {
           //判断停留在最后一张的时间为2秒，否则不跳转
           //如果想停留几秒后跳转则不加if
           if (position==adapter.getCount()-1){
               timer = new Timer(false);
               //计数器开始运行
               timer.schedule(new TimerTask() {
                   @Override
                   public void run() {
                       openActivity(ShanActivity.class,true);  //如果时间够了则跳转，并且关闭上一个Acyivity
                   }
               },2000);
           }else {
               if (timer!=null)
                   timer.cancel();
           }
       }

       @Override
       public void onPageScrollStateChanged(int state) {

       }
   });

}

@Override  //设置适配器
protected void data() {
    adapter = new MainPagerAdapter();
    mPager.setAdapter(adapter);
}

@Override
protected void view() {
  mPager=getViewById(R.id.vpa_main);
}

@Override
protected int getLayoutId() {
    return R.layout.activity_main;
}

@Override
protected boolean showTitle() {
    return false;
}
}

适配器

 public class MainPagerAdapter extends PagerAdapter {
 //图片的集合
  int[] item={R.mipmap.item1,R.mipmap.item2,R.mipmap.item3,R.mipmap.item4};

/**
 * item的数量
 * @return
 */
@Override
public int getCount() {
    return item.length;
}

/**
 * 判断是否创建新的
 * @param view
 * @param object
 * @return
 */
@Override
public boolean isViewFromObject(View view, Object object) {
    return view==object;
}

/**
 * 图片的更换
 * @param container
 * @param position
 * @return
 */
@Override
public Object instantiateItem(ViewGroup container, int position) {
   View view=LayoutInflater.from(container.getContext()).inflate(R.layout.item_main,null);
    ImageView imageView= (ImageView) view.findViewById(R.id.img_main);
    imageView.setBackgroundResource(item[position]);
    container.addView(view);
    return view;
}

/**
 * 是否删除旧的视图，默认为3个布局
 * @param container
 * @param position
 * @param object
 */
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
    container.removeView((View) object);
}

}
avtivity的布局，也是横屏滑动