(注意要将图片替换为你自己的图片)
public class MainActivity extends Activity {
private ViewPager mViewPaper;
private List<ImageView> images;
private List<View> dots;
private int currentItem;
//记录上一次点的位置
private int oldPosition = 0;
//存放图片的id
private int[] imageIds = new int[]{
R.drawable.a,
R.drawable.b,
R.drawable.c,
R.drawable.d,
R.drawable.e,
R.drawable.f,
R.drawable.g,
};
//存放图片的标题
private String[] titles = new String[]{
"上班的时候",
"澳门旅游",
"闺蜜/同事",
"家?",
"美人",
"妩媚",
"晒弟狂魔",
};
private TextView title;
private ViewPagerAdapter adapter;
private ScheduledExecutorService scheduledExecutorService;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mViewPaper = (ViewPager) findViewById(R.id.vp);
//显示的图片
images = new ArrayList<ImageView>();
for(int i = 0; i < imageIds.length; i++){
ImageView imageView = new ImageView(this);
imageView.setBackgroundResource(imageIds[i]);
images.add(imageView);
}
//显示的小点
dots = new ArrayList<View>();
dots.add(findViewById(R.id.dot_0));
dots.add(findViewById(R.id.dot_1));
dots.add(findViewById(R.id.dot_2));
dots.add(findViewById(R.id.dot_3));
dots.add(findViewById(R.id.dot_4));
dots.add(findViewById(R.id.dot_5));
dots.add(findViewById(R.id.dot_6));
dots.add(findViewById(R.id.dot_7));
title = (TextView) findViewById(R.id.title);
title.setText(titles[0]);
adapter = new ViewPagerAdapter();
mViewPaper.setAdapter(adapter);
mViewPaper.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageSelected(int position) {
title.setText(titles[position]);
dots.get(position).setBackgroundResource(R.drawable.dot_focused);
dots.get(oldPosition).setBackgroundResource(R.drawable.dot_normal);
oldPosition = position;
currentItem = position;
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
@Override
public void onPageScrollStateChanged(int arg0) {
}
});
}
/**
* 自定义Adapter
* @author liuyazhuang
*
*/
private class ViewPagerAdapter extends PagerAdapter {
@Override
public int getCount() {
return images.size();
}
@Override
public boolean isViewFromObject(View arg0, Object arg1) {
return arg0 == arg1;
}
@Override
public void destroyItem(ViewGroup view, int position, Object object) {
// TODO Auto-generated method stub
// super.destroyItem(container, position, object);
// view.removeView(view.getChildAt(position));
// view.removeViewAt(position);
view.removeView(images.get(position));
}
@Override
public Object instantiateItem(ViewGroup view, int position) {
// TODO Auto-generated method stub
view.addView(images.get(position));
return images.get(position);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
/**
* 利用线程池定时执行动画轮播
*/
@Override
protected void onStart() {
// TODO Auto-generated method stub
super.onStart();
scheduledExecutorService = Executors.newSingleThreadScheduledExecutor();
scheduledExecutorService.scheduleWithFixedDelay(
new ViewPageTask(),
2,
2,
TimeUnit.SECONDS);
}
private class ViewPageTask implements Runnable{
@Override
public void run() {
currentItem = (currentItem + 1) % imageIds.length;
mHandler.sendEmptyMessage(0);
}
}
/**
* 接收子线程传递过来的数据
*/
private Handler mHandler = new Handler(){
public void handleMessage(android.os.Message msg) {
mViewPaper.setCurrentItem(currentItem);
};
};
@Override
protected void onStop() {
// TODO Auto-generated method stub
super.onStop();
}
}
布局(可以自定义)
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent" >
<android.support.v4.view.ViewPager
android:id="@+id/vp"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="35dip"
android:layout_gravity="bottom"
android:background="#33000000"
android:gravity="center"
android:orientation="vertical" >
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="图片标题"
android:textColor="@android:color/white" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="3dip"
android:orientation="horizontal" >
<View
android:id="@+id/dot_0"
android:layout_width="5dip"
android:layout_height="5dip"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:background="@drawable/dot_focused"/>
<View
android:id="@+id/dot_1"
android:layout_width="5dip"
android:layout_height="5dip"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:background="@drawable/dot_normal"/>
<View
android:id="@+id/dot_2"
android:layout_width="5dip"
android:layout_height="5dip"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:background="@drawable/dot_normal"/>
<View
android:id="@+id/dot_3"
android:layout_width="5dip"
android:layout_height="5dip"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:background="@drawable/dot_normal"/>
<View
android:id="@+id/dot_4"
android:layout_width="5dip"
android:layout_height="5dip"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:background="@drawable/dot_normal"/>
<View
android:id="@+id/dot_5"
android:layout_width="5dip"
android:layout_height="5dip"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:background="@drawable/dot_normal"/>
<View
android:id="@+id/dot_6"
android:layout_width="5dip"
android:layout_height="5dip"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:background="@drawable/dot_normal"/>
<View
android:id="@+id/dot_7"
android:layout_width="5dip"
android:layout_height="5dip"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:background="@drawable/dot_normal"/>
</LinearLayout>
</LinearLayout>
</FrameLayout>