1、ViewPage源码路径:android.support.v4.view.ViewPager,需要导入android-support-v4.jar包;
2、ViewPage继承自ViewGroup
public class ViewPager extends ViewGroup
注:Android里面所有的控件都继承自View,包括ViewGroup;
3、ViewPage使用方式:
既然知道ViewPager继承自ViewGroup,那就是向ViewPager中添加View即可,这里就想到了ListView、GridView、Gallery添加View都是用Adapter,没错,ViewPager也是用Adapter添加数据:
android.support.v4.view.PagerAdapter
下面直接贴代码:
public class MyAdapter extends PagerAdapter { List<ImageView> mList = null; ViewPager vPage = null; MyAdapter(List<ImageView> list, ViewPager page) { mList = list; vPage = page; } @Override public int getCount() { return mList.size(); } @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) { View view = mList.get(position); view.setId(position); container.addView(view); return view; } }
配置文件:
<android.support.v4.view.ViewPager android:id="@+id/main_page" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="#FF000000" />
主类中完成初始化并启动:
vPage = (ViewPager) findViewById(R.id.main_page); mAdapter = new MyAdapter(mData, vPage); vPage.setAdapter(mAdapter); vPage.setCurrentItem(mData.size() / 2);
这样就完成了对ViewPager的配置,简单吧!
《Android ViewPager切换的N种动画》http://gqdy365.iteye.com/blog/2114968