可自动切换的轮播图(包含位置指示)

来源：互联网发布：java游戏服务端源码编辑：程序博客网时间：2024/05/22 03:40
public class CarouselView extends RelativeLayout {public CarouselView(Context context, AttributeSet attrs) {super(context, attrs);init();}private ScheduledExecutorService executor;private CirclePageIndicator indicator;private ViewPager viewPager;ArrayList<ImageView> list;private ArrayList<? extends View> views;private void init() {LayoutInflater.from(getContext()).inflate(R.layout.layout_carouseview,this);viewPager = (ViewPager) findViewById(R.id.carouseview);indicator = (CirclePageIndicator) findViewById(R.id.carouseview_indicator);}float start_x = 0, start_y = 0, end_x = 0, end_y = 0;public void setData(ArrayList<? extends View> views,ViewPagerAdapter adapter) {this.views = views;viewPager.setOnTouchListener(new View.OnTouchListener() {@Overridepublic boolean onTouch(View v, MotionEvent event) {int action = event.getAction();if (action == MotionEvent.ACTION_DOWN) {// toast("down");// Log.i("zhuxu", "down");start_x = event.getX();start_y = event.getY();} else if (action == MotionEvent.ACTION_UP) {// toast("up");// Log.i("zhuxu", "up");end_x = event.getX();end_y = event.getY();} else if (action == MotionEvent.ACTION_MOVE) {// Log.i("zhuxu", "move : " + "start_x : " + start_x// + "start_y : " + start_y + "end_x : " + end_x// + "end_y : " + end_y);// toast("move");// if (Math.abs(end_x - start_x) > 50 && Math.abs(end_y -// start_y) < 100) {if (Math.abs(end_x - start_x) > Math.abs(end_y - start_y)) {// Log.i("zhuxu", "横向移动！");//此句代码是为了通知他的父View 现在进行的是本控件的操作，不要对我的操作进行干扰v.getParent().requestDisallowInterceptTouchEvent(true);return false; // 是否需要View继续处理} else {//接近垂直滑动，交给父控件处理v.getParent().requestDisallowInterceptTouchEvent(false);// Log.i("zhuxu", "纵向移动！");return true;  // 是否需要View继续处理}}return false;}});viewPager.setAdapter(adapter);indicator.setOnPageChangeListener(new OnPageChangeListener() {@Overridepublic void onPageSelected(int arg0) {isChanged = true;}@Overridepublic void onPageScrolled(int arg0, float arg1, int arg2) {}@Overridepublic void onPageScrollStateChanged(int arg0) {}});indicator.setViewPager(viewPager);}public ViewPager getCarouselView() {return viewPager;}public void startCarouse() {executor = Executors.newSingleThreadScheduledExecutor();executor.scheduleWithFixedDelay(new ViewpagerTask(),2,3, TimeUnit.SECONDS);}public void cancleCarouse() {if (executor != null)executor.shutdown();}private int currentItem = 0;private boolean isChanged = false;private class ViewpagerTask implements Runnable {@Overridepublic void run() {if (isChanged) {isChanged = !isChanged;} else {currentItem = (viewPager.getCurrentItem() + 1) % views.size();post(new Runnable() {public void run() {viewPager.setCurrentItem(currentItem);}});}}}}
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