ViewPager无限自动轮播小圆点+网络加载图片+活动倒计时

 代码;

//网络请求的图片
private String[] image={"http://l2.51fanli.net//tuan//images//1//5806eac956808.jpg","http://l2.51fanli.net//tuan//images//b//580991bb30560.jpg","http://l0.51fanli.net//tuan//images//b//58115f2593dc3.jpg","http://l2.51fanli.net//tuan//images//0//57923840b054d.jpg","http://l2.51fanli.net//tuan//images//e//58101e11ab164.jpg"};
private ViewPager vp;
//小圆点的数组
 private ImageView[] point=new ImageView[5];
//gridview需要加载的图片
 private List<Integer> list=new ArrayList<Integer>();
private int time=5;
private TextView tvtime1,tvtime3,tvtime2;
    Handler handler = new Handler();
    Runnable runnable = new Runnable() {
@Override
        public void run() {
int item = vp.getCurrentItem();
            item++;
vp.setCurrentItem(item);
time--;
            String formatLongToTimeStr = formatLongToTimeStr(time);
            String[] split = formatLongToTimeStr.split("：");
for (int i = 0; i < split.length; i++) {
if(i==0){
tvtime1.setText(split[0]);
                }
if(i==1){
tvtime2.setText(split[1]);
                }
if(i==2){
tvtime3.setText(split[2]);
                }

            }
if(time>0){
handler.postDelayed(this, 1000);
            }else{
time=0+1;
handler.postDelayed(this, 1000);
            }
        }
    };

@Override
    protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
//获取小圆点的Id
 point[0]=(ImageView)findViewById(R.id.point1);
point[1]=(ImageView)findViewById(R.id.point2);
point[2]=(ImageView)findViewById(R.id.point3);
point[3]=(ImageView)findViewById(R.id.point4);
point[4]=(ImageView)findViewById(R.id.point5);
        GridView gv= (GridView) findViewById(R.id.gdv);
for (int i = 0; i <20 ; i++) {
list.add(R.drawable.a1);
list.add(R.drawable.a2);
list.add(R.drawable.a3);
list.add(R.drawable.a4);
list.add(R.drawable.a5);
        }
        Myadapter gvadapter=new Myadapter(this,list);
        gv.setAdapter(gvadapter);
    }

private void initView() {
tvtime1= (TextView) findViewById(R.id.tvtime1);
tvtime2= (TextView) findViewById(R.id.tvtime2);
tvtime3= (TextView) findViewById(R.id.tvtime3);
vp = (ViewPager) findViewById(R.id.vp);
vp.setAdapter(new ImageAdapter());
vp.setCurrentItem(3000);
//添加页面状态监听
 vp.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

            }

@Override
            public void onPageSelected(int position) {
           updatePoint(position%image.length);
            }

@Override
            public void onPageScrollStateChanged(int state) {

            }
        });
handler.postDelayed(runnable, 1000);
    }

private void updatePoint(int position) {
//先把所有点初始化原来的样式
 for(ImageView image:point){
            image.setImageResource(R.drawable.nor);
        }
point[position].setImageResource(R.drawable.sel);
    }
//适配器
 class ImageAdapter extends PagerAdapter{
@Override
        public Object instantiateItem(ViewGroup container, int position) {
//加载图片
 ImageView imag=new ImageView(MainActivity.this);
            Glide.with(MainActivity.this).load(image[position%image.length]).placeholder(R.drawable.zh).into(imag);
            container.addView(imag);
return imag;
        }

@Override
        public void destroyItem(ViewGroup container, int position, Object object) {
            container.removeView((View) object);
        }

@Override
        public int getCount() {
return Integer.MAX_VALUE;
        }

@Override
        public boolean isViewFromObject(View view, Object object) {
return view==object;
        }
    }
//时间转换方法
 public String formatLongToTimeStr(int l) {
int hour = 0;
int minute = 0;
int second = 0;
        second = l ;
//当秒大于60转换成分钟，零头转换成秒
 if (second > 60) {
            minute = second / 60;         //取整
 second = second % 60;         //取余
 }
//当分钟大于60转换成小时，零头转换成分钟
 if (minute > 60) {
            hour = minute / 60;
            minute = minute % 60;
        }
//拼接字符串
 String strtime = hour+"："+minute+"："+second;
return strtime;

    }

@Override
    protected void onStop() {
super.onStop();
//防止内存泄漏
 handler.removeCallbacksAndMessages(null);

    }

 布局xml:

  
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:id="@+id/activity_main"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 tools:context="week2.com.example.viewpagernetpicture.MainActivity">

    <LinearLayout
 android:id="@+id/llt"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:layout_below="@+id/vp"
 android:gravity="center">
        <ImageView
 android:id="@+id/point1"
 android:tag="0"
 android:layout_width="15dp"
 android:layout_height="15dp"
 android:layout_marginRight="5dp"/>
        <ImageView
 android:id="@+id/point2"
 android:tag="1"
 android:layout_width="15dp"
 android:layout_height="15dp"
 android:layout_marginRight="5dp"/>
        <ImageView
 android:id="@+id/point3"
 android:tag="2"
 android:layout_width="15dp"
 android:layout_height="15dp"
 android:layout_marginRight="5dp"/>
        <ImageView
 android:id="@+id/point4"
 android:tag="3"
 android:layout_width="15dp"
 android:layout_height="15dp"
 android:layout_marginRight="5dp"/>
        <ImageView
 android:id="@+id/point5"
 android:tag="4"
 android:layout_width="15dp"
 android:layout_height="15dp"
 android:layout_marginRight="5dp"/>
    </LinearLayout
 >

    <TextView
 android:text="京东秒杀"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_alignParentBottom="true"
 android:layout_alignParentStart="true"
 android:layout_marginStart="17dp"
 android:textSize="15sp"
 android:textColor="#f00"
 android:id="@+id/textView" />
    <LinearLayout
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_marginStart="25dp"
 android:id="@+id/textView3"
 android:layout_toEndOf="@+id/textView2"
 android:layout_alignParentBottom="true"
 android:orientation="horizontal">
        <TextView
 android:id="@+id/tvtime1"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_centerHorizontal="true"
 android:layout_centerVertical="true"
 android:gravity="center"
 android:background="#3B3B3B"
 android:text="02"
 android:textColor="#FFFFFF"
 android:textSize="15sp" />

        <TextView
 android:id="@+id/tvtime2"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_centerHorizontal="true"
 android:layout_centerVertical="true"
 android:layout_marginLeft="10dp"
 android:gravity="center"
 android:text="59"
 android:textColor="#FFFFFF"
 android:background="#3B3B3B"
 android:textSize="15sp" />

        <TextView
 android:id="@+id/tvtime3"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_centerHorizontal="true"
 android:layout_centerVertical="true"
 android:layout_marginLeft="10dp"
 android:gravity="center"
 android:background="#3B3B3B"
 android:textColor="#FFFFFF"
 android:text="59"
 android:textSize="15sp" />

    </LinearLayout>

    <TextView
 android:text="20点场"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:id="@+id/textView2"
 android:textSize="15sp"
 android:layout_alignBottom="@+id/textView"
 android:layout_toEndOf="@+id/textView"
 android:layout_marginStart="15dp" />

    <TextView
 android:text="海美迪直播玩电视"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:textSize="15sp"
 android:textColor="#f00"
 android:id="@+id/textView4"
 android:layout_marginStart="55dp"
 android:layout_alignParentEnd="true"
 android:layout_alignParentBottom="true"/>

    <GridView
 android:id="@+id/gdv"
 android:layout_width="match_parent"
 android:layout_height="270dp"
 android:numColumns="5"
 android:layout_above="@+id/textView"
 android:layout_below="@id/llt"
 android:layout_alignParentStart="true">
    </GridView>

    <android.support.v4.view.ViewPager
 android:id="@+id/vp"
 android:layout_width="match_parent"
 android:layout_height="250dp"
 android:layout_alignParentTop="true"
 android:layout_alignParentStart="true">
    </android.support.v4.view.ViewPager>

</RelativeLayout>