android 广告页自动切换

private static final String TAG = FoundFragment.class.getSimpleName();

private ViewPagerForScrollView adViewPager;//View的滑动
private LinearLayout pagerLayout;//广告页的布局
private List<View> pageViews;//广告页的一个个view
private ImageView[] imageViews;//广告页的所有图片
private ImageView imageView;//图片
private AdvertisementPageAdapter adapter;//适配器
private boolean isContinue = true;//继续广告变化
private AtomicInteger atomicInteger = new AtomicInteger(0);//原子

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_found, container, false);
initViewPager(view);
return view;
}

private void initViewPager(View view) {

//从布局文件中获取ViewPager父容器
pagerLayout = (LinearLayout) view.findViewById(R.id.view_pager_content);
//创建ViewPager
adViewPager = new ViewPagerForScrollView(this.getActivity());

//获取屏幕像素相关信息
DisplayMetrics dm = new DisplayMetrics();
this.getActivity().getWindowManager().getDefaultDisplay().getMetrics(dm);

//根据屏幕信息设置ViewPager广告容器的宽高
adViewPager.setLayoutParams(new ViewGroup.LayoutParams(dm.widthPixels, dm.heightPixels * 2 / 5));

//将ViewPager容器设置到布局文件父容器中
pagerLayout.addView(adViewPager);

initPageAdapter();

initCirclePoint(view);

adViewPager.setAdapter(adapter);
adViewPager.setOnPageChangeListener(new AdPageChangeListener());

new Thread(new Runnable() {
@Override
public void run() {
while (true) {
if (isContinue) {
viewHandler.sendEmptyMessage(atomicInteger.get());
atomicOption();
}
}
}
}).start();
}

private void atomicOption() {
atomicInteger.incrementAndGet();
if (atomicInteger.get() > imageViews.length - 1) {
atomicInteger.getAndAdd(-5);
}
try {
Thread.sleep(2000);
} catch (InterruptedException e) {

}
}

/*
* 每隔固定时间切换广告栏图片
*/
private final Handler viewHandler = new Handler() {

@Override
public void handleMessage(Message msg) {
adViewPager.setCurrentItem(msg.what);
super.handleMessage(msg);
}

};

private void initPageAdapter() {
pageViews = new ArrayList<View>();

ImageView img1 = new ImageView(this.getActivity());
img1.setImageResource(R.mipmap.found_image_sample);
img1.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
img1.setAdjustViewBounds(true);

pageViews.add(img1);

ImageView img2 = new ImageView(this.getActivity());
img2.setAdjustViewBounds(true);
img2.setImageResource(R.mipmap.found_image_sample);
pageViews.add(img2);

ImageView img3 = new ImageView(this.getActivity());
img3.setImageResource(R.mipmap.found_image_sample);
img3.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
img3.setAdjustViewBounds(true);
pageViews.add(img3);

adapter = new AdvertisementPageAdapter(pageViews);
}

private void initCirclePoint(View view){
ViewGroup group = (ViewGroup) view.findViewById(R.id.viewGroup);
imageViews = new ImageView[pageViews.size()];
//广告栏的小圆点图标
for (int i = 0; i < pageViews.size(); i++) {
//创建一个ImageView, 并设置宽高. 将该对象放入到数组中
imageView = new ImageView(this.getActivity());
imageView.setLayoutParams(new ViewGroup.LayoutParams(30,30));
imageViews[i] = imageView;

//初始值, 默认第0个选中
if (i == 0) {
imageViews[i]
.setBackgroundResource(R.mipmap.point_focused);
} else {
imageViews[i]
.setBackgroundResource(R.mipmap.point_unfocused);
}
//将小圆点放入到布局中
group.addView(imageViews[i]);
}
}

/**
* ViewPager 页面改变监听器
*/
private final class AdPageChangeListener implements ViewPager.OnPageChangeListener {

/**
* 页面滚动状态发生改变的时候触发
*/
@Override
public void onPageScrollStateChanged(int arg0) {
}

/**
* 页面滚动的时候触发
*/
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}

/**
* 页面选中的时候触发
*/
@Override
public void onPageSelected(int arg0) {
//获取当前显示的页面是哪个页面
atomicInteger.getAndSet(arg0);
//重新设置原点布局集合
for (int i = 0; i < imageViews.length; i++) {
imageViews[arg0]
.setBackgroundResource(R.mipmap.point_focused);
if (arg0 != i) {
imageViews[i]
.setBackgroundResource(R.mipmap.point_unfocused);
}
}
}
}