无限轮播

//布局

<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/vp" />

//代码实现
package com.bwei.meinv;

import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
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.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;

public class MainActivity extends Activity {

int arr[] = { R.drawable.hkj, R.drawable.jj, R.drawable.pp };
private ViewPager vp;

private List ivlist = new ArrayList();

private Handler handler = new Handler() {
public void handleMessage(android.os.Message msg) {
int i = msg.what;

switch (i) {
case 0:
vp.setAdapter(new MyPagerAdapter());

intiDot();

vp.setCurrentItem(64487);

setvpListener();

startRoll();
break;

case 1:
int item = vp.getCurrentItem();
item++;
vp.setCurrentItem(item);

startRoll();
break;
}
};
};
private LinearLayout ll;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

vp = (ViewPager) findViewById(R.id.vp);
ll = (LinearLayout) findViewById(R.id.ll);
handler.sendEmptyMessage(0);
}

protected void startRoll() {
handler.sendEmptyMessageDelayed(1, 3000);

}
//滑动监听
@SuppressWarnings("deprecation")
protected void setvpListener() {
vp.setOnPageChangeListener(new OnPageChangeListener() {

@Override
public void onPageSelected(int arg0) {
for (int i = 0; i < arr.length; i++) {
if (arg0 % ivlist.size() == i) {
ivlist.get(arg0 % ivlist.size()).setImageResource(
R.drawable.xianshi);
} else {
ivlist.get(i).setImageResource(R.drawable.buxianshi);
}
}
}

@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {

}

@Override
public void onPageScrollStateChanged(int arg0) {

}
});

}
//添加小圆点
protected void intiDot() {
if (ivlist != null) {
ivlist.clear();
}

for (int i = 0; i < arr.length; i++) {
ImageView iv = new ImageView(this);
if (i == 0) {
iv.setImageResource(R.drawable.xianshi);
} else {
iv.setImageResource(R.drawable.buxianshi);
}

LayoutParams params = new LayoutParams(10, 10);
params.setMargins(20, 5, 20, 5);

ivlist.add(iv);
ll.addView(iv, params);
}
}
//viewpager的适配
class MyPagerAdapter extends PagerAdapter {

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

@Override
public boolean isViewFromObject(View arg0, Object arg1) {
return arg0 == arg1;
}

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

@Override
public Object instantiateItem(ViewGroup container, int position) {
ImageView iv = new ImageView(MainActivity.this);
iv.setImageResource(arr[position%arr.length]);
container.addView(iv);
return iv;
}
}
//自动轮播或者使用以下方法

private void startTimer() {
Timer tmr = new Timer();
tmr.schedule(new TimerTask() {
@Override
public void run() {
runOnUiThread(new Runnable() {
@Override
public void run() {
int item = vp.getCurrentItem();
item++;
vp.setCurrentItem(item);
}
});

}
}, 0, 2000);

}

}