用ViewPager實現輪播效果

public class SamplePagerView extends RelativeLayout{

public SamplePagerView(Context context, AttributeSet attrs, int defStyle) {

super(context, attrs, defStyle);

// TODO Auto-generated constructor stub

LayoutInflater.from(context).inflate(R.layout.viewpager_in, this);

}

public SamplePagerView(Context context, AttributeSet attrs) {

super(context, attrs);

// TODO Auto-generated constructor stub

LayoutInflater.from(context).inflate(R.layout.viewpager_in, this);

}

public SamplePagerView(Context context) {

super(context);

// TODO Auto-generated constructor stub

this.mContext = (FragmentActivity) context;

LayoutInflater.from(context).inflate(R.layout.viewpager_in, this);

}

private FragmentActivity mContext;

public FragmentActivity getmContext() {

return mContext;

}

public void setmContext(FragmentActivity mContext) {

this.mContext = mContext;

}

private CoustomViewPager viewPager;

private ImageView[] imageViews;

private TestFragmentAdapter mAdapter;

private ArrayList<ImageBean> imageBeans = new ArrayList<ImageBean>();

public ArrayList<ImageBean> getImageBeans() {

return imageBeans;

}

public void setImageBeans(ArrayList<ImageBean> imageBeans) {

this.imageBeans = imageBeans;

}

/**

* 每隔多長時間執行一次   

*/

private int interval_time = 5000;

public int getInterval_time() {

return interval_time;

}

/**

* 設置輪播間隔時間

* @param interval_time

*/

public void setInterval_time(int interval_time) {

this.interval_time = interval_time;

}

/**

* 判斷是否正在手勢滑動

*/

private boolean isOnTouchMove = false;

public boolean isOnTouchMove() {

return isOnTouchMove;

}

public void setOnTouchMove(boolean isOnTouchMove) {

this.isOnTouchMove = isOnTouchMove;

}

public boolean isOpen() {

return isOpen;

}

public void setOpen(boolean isOpen) {

this.isOpen = isOpen;

}

/**

* 控制開啓和關閉自動輪播,默認關閉

*/

private boolean isOpen = false;

public void init(){

initArrayList();

        initCircle();

        initData();

        mHandler.postDelayed(mRunnable, interval_time);

}

    /**

     * 初始化viewpager數據

     */

private void initData() {

mAdapter = new TestFragmentAdapter(mContext.getSupportFragmentManager(), imageBeans);

viewPager = (CoustomViewPager)findViewById(R.id.viewPager);

viewPager.setPagerView(this);

viewPager.setAdapter(mAdapter);

viewPager.setOnPageChangeListener(new MyListener(imageBeans, imageViews));

viewPager.setCurrentItem(MyListener.num);

}

private void initArrayList(){

ImageBean imageBean2 = new ImageBean("2", "http://pic2.ooopic.com/11/75/33/20bOOOPIC41.jpg", R.drawable.p1);

ImageBean imageBean3 = new ImageBean("3", "http://pic.58pic.com/58pic/10/95/82/54q58PICeI2.jpg", R.drawable.p1);

ImageBean imageBean6 = new ImageBean("6", "http://pic.58pic.com/58pic/11/15/98/26T58PICCa3.jpg", R.drawable.p1);

ImageBean imageBean7 = new ImageBean("7", "http://pic.58pic.com/01/05/43/43bOOOPIC1e.jpg", R.drawable.p1);

ImageBean imageBean8 = new ImageBean("8", "http://pic.58pic.com/58pic/11/15/47/91u58PICpYF.jpg", R.drawable.p1);

ImageBean imageBean9 = new ImageBean("9", "http://pic.58pic.com/10/19/41/49bOOOPIC03.jpg", R.drawable.p1);

ImageBean imageBean10 = new ImageBean("10", "http://pic.58pic.com/58pic/11/12/92/87k58PICVwj.jpg", R.drawable.p1);

imageBeans.add(imageBean2);

imageBeans.add(imageBean3);

imageBeans.add(imageBean6);

imageBeans.add(imageBean7);

imageBeans.add(imageBean8);

imageBeans.add(imageBean9);

imageBeans.add(imageBean10);

}

    /**

     * 初始化底部圓點

     */

private void initCircle() {

int imageSize = imageBeans.size();

imageViews = new ImageView[imageSize];

LinearLayout linearLayout = (LinearLayout) findViewById(R.id.viewGroup);

for (int i = 0; i < imageSize; i++) {

imageViews[i] = new ImageView(mContext);

imageViews[i].setLayoutParams(new LayoutParams(12,12));

if (i == 0) {

imageViews[i].setBackgroundResource(R.drawable.hollow_circle);

} else {

imageViews[i].setBackgroundResource(R.drawable.solid_circle);

}

linearLayout.addView(imageViews[i]);

}

}

    private Handler mHandler =  new Handler() {

@Override

public void handleMessage(Message msg) {

viewPager.setCurrentItem(msg.what);

super.handleMessage(msg);

}

};  

private Runnable mRunnable = new Runnable() {   

public void run() {  

//每隔多長時間執行一次

mHandler.postDelayed(mRunnable, interval_time);

int length = imageBeans.size();

//若是手指沒有滑動而且集合長度>1,同時開關是開的開啓自動輪播

if(!isOnTouchMove && isOpen && length > 1){

MyListener.num++;

mHandler.sendEmptyMessage(MyListener.num);

}

}

}; 

具體的demo下載地址：http://download.csdn.net/detail/u010820846/8592653