仿优酷Android客户端图片左右滑动（自动滑动）

最终效果：

页面布局main.xml：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:background="#FFFFFF"    android:orientation="vertical" >    <RelativeLayout        android:layout_width="fill_parent"        android:layout_height="40dip"        android:background="@drawable/title_bk" >        <ImageButton            android:id="@+id/btn_back"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:background="@drawable/btn_back_selector"            android:src="@drawable/btn_back" />        <View            android:id="@+id/line0"            android:layout_width="1px"            android:layout_height="fill_parent"            android:layout_toRightOf="@id/btn_back"            android:background="#aa11264f" />        <View            android:layout_width="1px"            android:layout_height="fill_parent"            android:layout_toRightOf="@id/line0"            android:background="#009ad6" />        <TextView            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_centerInParent="true"            android:text="优酷客户端"            android:textColor="#FFFFFF"            android:textSize="20sp" />    </RelativeLayout>    <FrameLayout        android:layout_width="fill_parent"        android:layout_height="140dip" >        <android.support.v4.view.ViewPager            android:id="@+id/vp"            android:layout_width="fill_parent"            android:layout_height="fill_parent" />        <LinearLayout            android:layout_width="fill_parent"            android:layout_height="35dip"            android:layout_gravity="bottom"            android:background="#33000000"            android:gravity="center"            android:orientation="vertical" >            <TextView                android:id="@+id/tv_title"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:text="中国家庭院校园区域名字体现"                android:textColor="#ffffff" />            <LinearLayout                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_marginTop="3dip"                android:gravity="center" >                <View                    android:id="@+id/v_dot0"                    style="@style/dot_style"                    android:background="@drawable/dot_focused" />                <View                    android:id="@+id/v_dot1"                    style="@style/dot_style" />                <View                    android:id="@+id/v_dot2"                    style="@style/dot_style" />                <View                    android:id="@+id/v_dot3"                    style="@style/dot_style" />                <View                    android:id="@+id/v_dot4"                    style="@style/dot_style" />            </LinearLayout>        </LinearLayout>    </FrameLayout></LinearLayout>

后台控制：

package fengyan.viewpager;import java.util.ArrayList;import java.util.List;import java.util.concurrent.Executors;import java.util.concurrent.ScheduledExecutorService;import java.util.concurrent.TimeUnit;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.os.Parcelable;import android.support.v4.view.PagerAdapter;import android.support.v4.view.ViewPager;import android.support.v4.view.ViewPager.OnPageChangeListener;import android.view.View;import android.widget.ImageView;import android.widget.ImageView.ScaleType;import android.widget.TextView;/** * 仿优酷Android客户端图片左右滑动 *  * @author SinaWeiBo：f309587969@126.com * @author TencentWeiBo：fengyanjava *  */public class MyViewPagerActivity extends Activity {    private ViewPager viewPager; // android-support-v4中的滑动组件    private List<ImageView> imageViews; // 滑动的图片集合    private String[] titles; // 图片标题    private int[] imageResId; // 图片ID    private List<View> dots; // 图片标题正文的那些点    private TextView tv_title;    private int currentItem = 0; // 当前图片的索引号    // An ExecutorService that can schedule commands to run after a given delay,    // or to execute periodically.    private ScheduledExecutorService scheduledExecutorService;    // 切换当前显示的图片    private Handler handler = new Handler() {        public void handleMessage(android.os.Message msg) {            viewPager.setCurrentItem(currentItem);// 切换当前显示的图片        };    };    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        imageResId = new int[] { R.drawable.a, R.drawable.b, R.drawable.c, R.drawable.d, R.drawable.e };        titles = new String[imageResId.length];        titles[0] = "巩俐不低俗，我就不能低俗";        titles[1] = "扑树又回来啦！再唱经典老歌引万人大合唱";        titles[2] = "揭秘北京电影如何升级";        titles[3] = "乐视网TV版大派送";        titles[4] = "热血屌丝的反杀";        imageViews = new ArrayList<ImageView>();        // 初始化图片资源        for (int i = 0; i < imageResId.length; i++) {            ImageView imageView = new ImageView(this);            imageView.setImageResource(imageResId[i]);            imageView.setScaleType(ScaleType.CENTER_CROP);            imageViews.add(imageView);        }        dots = new ArrayList<View>();        dots.add(findViewById(R.id.v_dot0));        dots.add(findViewById(R.id.v_dot1));        dots.add(findViewById(R.id.v_dot2));        dots.add(findViewById(R.id.v_dot3));        dots.add(findViewById(R.id.v_dot4));        tv_title = (TextView) findViewById(R.id.tv_title);        tv_title.setText(titles[0]);//        viewPager = (ViewPager) findViewById(R.id.vp);        viewPager.setAdapter(new MyAdapter());// 设置填充ViewPager页面的适配器        // 设置一个监听器，当ViewPager中的页面改变时调用        viewPager.setOnPageChangeListener(new MyPageChangeListener());    }    @Override    protected void onStart() {        scheduledExecutorService = Executors.newSingleThreadScheduledExecutor();        // 当Activity显示出来后，每两秒钟切换一次图片显示        scheduledExecutorService.scheduleAtFixedRate(new ScrollTask(), 1, 2, TimeUnit.SECONDS);        super.onStart();    }    @Override    protected void onStop() {        // 当Activity不可见的时候停止切换        scheduledExecutorService.shutdown();        super.onStop();    }    /**     * 换行切换任务     *      * @author Administrator     *      */    private class ScrollTask implements Runnable {        public void run() {            synchronized (viewPager) {                System.out.println("currentItem: " + currentItem);                currentItem = (currentItem + 1) % imageViews.size();                handler.obtainMessage().sendToTarget(); // 通过Handler切换图片            }        }    }    /**     * 当ViewPager中页面的状态发生改变时调用     *      * @author Administrator     *      */    private class MyPageChangeListener implements OnPageChangeListener {        private int oldPosition = 0;        /**         * This method will be invoked when a new page becomes selected.         * position: Position index of the new selected page.         */        public void onPageSelected(int position) {            currentItem = position;            tv_title.setText(titles[position]);            dots.get(oldPosition).setBackgroundResource(R.drawable.dot_normal);            dots.get(position).setBackgroundResource(R.drawable.dot_focused);            oldPosition = position;        }        public void onPageScrollStateChanged(int arg0) {        }        public void onPageScrolled(int arg0, float arg1, int arg2) {        }    }    /**     * 填充ViewPager页面的适配器     *      * @author Administrator     *      */    private class MyAdapter extends PagerAdapter {        @Override        public int getCount() {            return imageResId.length;        }        @Override        public Object instantiateItem(View arg0, int arg1) {            ((ViewPager) arg0).addView(imageViews.get(arg1));            return imageViews.get(arg1);        }        @Override        public void destroyItem(View arg0, int arg1, Object arg2) {            ((ViewPager) arg0).removeView((View) arg2);        }        @Override        public boolean isViewFromObject(View arg0, Object arg1) {            return arg0 == arg1;        }        @Override        public void restoreState(Parcelable arg0, ClassLoader arg1) {        }        @Override        public Parcelable saveState() {            return null;        }        @Override        public void startUpdate(View arg0) {        }        @Override        public void finishUpdate(View arg0) {        }    }}

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