ViewPager的Adapter-优快云博客

本文详细介绍了如何使用和实现Android中常用的Viewpager组件，包括自定义适配器MyAdapter和YPHFragmentViewPagerAdapter的功能与用法。通过实例演示，帮助开发者快速掌握并应用Viewpager来展示页面。

经常要用到的Viewpager，但是，却经常忘记怎么用了，今天记录一下，下次就可以之间copy啦。。。哈

public class MyAdapter extends PagerAdapter {
	ArrayList<ImageView> data;

	public MyAdapter(ArrayList<ImageView> data) {
		this.data = data;
	}

	@Override
	public int getCount() {
		return data.size();
	}

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

	@Override
	public Object instantiateItem(ViewGroup container, int position) {
		container.addView(data.get(position), 0);
		return data.get(position);
	}

	@Override
	public void destroyItem(ViewGroup container, int position, Object object) {
		// super.destroyItem(container, position, object);
		container.removeView(data.get(position));
	}
}

FragmentPagerAdapter

public class YPHFragmentViewPagerAdapter extends FragmentPagerAdapter {
	private ArrayList<Fragment> fragments;

	public YPHFragmentViewPagerAdapter(FragmentManager fm,
			ArrayList<Fragment> fragments) {
		super(fm);
		this.fragments = fragments;
	}

	@Override
	public Fragment getItem(int arg0) {
		return fragments.get(arg0);
	}

	@Override
	public int getCount() {
		return fragments.size();
	}

	// @Override  这个不用写上次写了就出错了
	// public Object instantiateItem(ViewGroup container, int position) {
	//
	// return fragments.get(position);
	// }

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