自定义控件-ViewPager广告板轮播

xml 里面使用
<com.march.billboardview.BillBoardView
        android:id="@+id/billboard"
        android:layout_width="match_parent"
        android:layout_height="250dp"
        board:isAutoRun="true"
        board:isLoopIt="true"
        board:intervalTime="2000" />

属性：
isAutoRun:是不是自动播放，不需要滑动，默认true
isLoopIt:是不是无限循环播放，默认是true
intervalTime:播放间隔时间，每隔多长时间走一页

public class  implements BoardConfig{}

private BillBoardView billBoardView;
private SimpleBoardAdapter<Demo> mBoardAdapter;
mBoardAdapter = new SimpleBoardAdapter<>(getActivity(), demos);
billBoardView.setAdapter(mBoardAdapter);

//设置动画的方法
public BillBoardView setAnimation(int duration, Interpolator interpolator)

//BillBoardView
//重新定义ViewPager的将停
public void setOnBoardPageChangeListener(OnPageChangeListener onPageChangeListener)
//获取内部的ViewPager
public ViewPager getViewPager()

//一些变量，你可以在子类中访问
protected Context mContext;
protected int mLyRes;
protected int preIndex = -1;//上一个被选中的
protected List<B> datas;
protected boolean isLoop;
protected View mRootView;
protected BillBoardView mBoardView;

//为了方便使用定义了SimpleBoardAdapter

//获取TitleView用于改变字体，颜色，背景，文字大小等
public TextView getTitleView()
//获取底部Bar,用于改变背景，高度等
public ViewGroup getBotLy()
//获取导航条
public LinearLayout getGuideLy()
//设置选中和未选中的资源
public void setSelectRes(int selectRes, int unSelectRes)
//设置标题的位置POS_LEFT = 0, POS_CENTER = 1, POS_RIGHT = 2
public void setTitleGravity(int gravity)
//设置导航栏的位置POS_LEFT = 0, POS_CENTER = 1, POS_RIGHT = 2
public void setGuideLyGravity(int gravity)

//Adapter做的工作是，覆盖在BillBoardView上面，随着BillBoardView的变化，修改UI
public class MyAdapter extends BoardAdapter<> {

    public MyAdapter(Context mContext, List<Demo> datas) {
        super(mContext, datas);
    }

    //资源ID.高度建议Match_parent
    
    protected int getLayoutId() {
        return 0;
    }

    //获取控件，findById()或者一些初始化的操作
    
    protected void initAdapterViews() {

    }

    //当划到pos位置。更改界面显示
    
    public void changeItemDisplay(int pos, Demo demo) {

    }

    //当adapter连接到billboardView时，触发
    
    public void onBillBoardViewAttached(BillBoardView billBoardView) {
        super.onBillBoardViewAttached(billBoardView);
    }
}

protected void onResume() {
    super.onResume();
    if(billBoardView!=null)
        billBoardView.startPlay();
}

@Override
protected void onDestroy() {
    super.onDestroy();
    billBoardView.stopPlay();
}

@Override
protected void onPause() {
    super.onPause();
    billBoardView.stopPlay();
}