ViewPage第二課為ViewPage添加標題

具體如下：

public class MainActivity extends Activity {
	private ViewPager viewpager;
	private List children;

	private List titles;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		viewpager = (ViewPager) findViewById(R.id.vp_viewpage);
		children = new ArrayList();
		children.add(LayoutInflater.from(this).inflate(R.layout.page01, null));
		children.add(getLayoutInflater().inflate(R.layout.page02, null));
		children.add(getLayoutInflater().inflate(R.layout.page03, null));
		children.add(getLayoutInflater().inflate(R.layout.page04, null));
		titles = new ArrayList();
		titles.add("page01");
		titles.add("page02");
		titles.add("page03");
		titles.add("page04");
		viewpager.setAdapter(new InnerPagerAdapter());
	}
	public class InnerPagerAdapter extends PagerAdapter{
		@Override
		public CharSequence getPageTitle(int position) {
			// TODO Auto-generated method stub
			return titles.get(position);
		}

		@Override
		public int getCount() {
			//獲取子級布局的數量

			return children.size();//返回viewpage容器中子級布局的個數，
		}

		@Override
		public boolean isViewFromObject(View view, Object object) {
			// 判斷某個View對象是否為當前被添加到ViewPager容器中的對象
			return view == object;
		}

		//下面兩個方法是PageAdapter中必須實現的非抽象方法
		@Override
		public Object instantiateItem(ViewGroup container, int position) {
			// 實例化ViewPager容器中指定的position位置需要顯示的View對象
			View view = children.get(position);
			container.addView(view);


			return view;
		}

		@Override
		public void destroyItem(ViewGroup container, int position, Object object) {
			//在ＶｉｅｗＰａｇｅｒ中移除指定的ｐｏｓｉｔｉｏｎ位置的Ｖｉｅｗ對象
			container.removeView(children.get(position));
		}
	}

}