学步园

之前我们使用的是android.support.v4.view.PagerAdapter，现在我们换用 android.support.v4.app.FragmentPagerAdapter。

文档上面有官方的示例代码：

android-sdk-windows/docs/reference/android/support/v4/app/FragmentPagerAdapter.html

废话少说，贴上我的代码

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:gravity="center_horizontal"
    android:orientation="vertical"
    android:padding="4dip" >

    <Button
        android:id="@+id/goto_first"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="first" >
    </Button>

    <Button
        android:id="@+id/goto_last"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="last" >
    </Button>

    <android.support.v4.view.ViewPager
        android:id="@+id/pager"
        android:layout_width="fill_parent"
        android:layout_height="0px"
        android:layout_weight="1" >
    </android.support.v4.view.ViewPager>

</LinearLayout>

list.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@android:drawable/gallery_thumb"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center_vertical|center_horizontal"
        android:text="hello_world"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <FrameLayout
        android:layout_width="wrap_content"
        android:layout_height="0dip"
        android:layout_weight="1" >

        <ListView
            android:id="@android:id/list"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:drawSelectorOnTop="false" />

        <TextView
            android:id="@android:id/empty"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="No items."
            android:textAppearance="?android:attr/textAppearanceMedium" />
    </FrameLayout>

</LinearLayout>

Activity

package com.test;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.ListFragment;
import android.support.v4.view.ViewPager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;

public class ViewPager4Activity extends FragmentActivity {
	//这个常量是指定你一共有多少个卡片，我这里是10，就是有10张卡片（页面）
	static final int NUM_ITEMS = 10;
	MyAdapter mAdapter;
	ViewPager mPager;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		mAdapter = new MyAdapter(getSupportFragmentManager());
		mPager = (ViewPager) findViewById(R.id.pager);
		mPager.setAdapter(mAdapter);
		//返回页首和页尾，也就是第一张卡片和第十张卡片
		Button button = (Button) findViewById(R.id.goto_first);
		button.setOnClickListener(new OnClickListener() {
			public void onClick(View v) {
				mPager.setCurrentItem(0);
			}
		});
		button = (Button) findViewById(R.id.goto_last);
		button.setOnClickListener(new OnClickListener() {
			public void onClick(View v) {
				mPager.setCurrentItem(NUM_ITEMS - 1);
			}
		});
	}

	public static class MyAdapter extends FragmentPagerAdapter {
		public MyAdapter(FragmentManager fm) {
			super(fm);
		}

		@Override
		public int getCount() {
			return NUM_ITEMS;
		}

		@Override
		public Fragment getItem(int position) {
			return ArrayListFragment.newInstance(position);
		}
	}

	public static class ArrayListFragment extends ListFragment {
		int mNum;
		public static final String[] sCheeseStrings = { "Abbaye de Belloc",
				"Abbaye du Mont des Cats", "Abertam", "Abondance", "Ackawi", "Acorn",
				"Adelost", "Affidelice au Chablis", "Afuega'l Pitu", "Airag", "Airedale",
				"Aisy Cendre", "Allgauer Emmentaler" };

		static ArrayListFragment newInstance(int num) {
			ArrayListFragment f = new ArrayListFragment();

			// Supply num input as an argument.
			Bundle args = new Bundle();
			args.putInt("num", num);
			f.setArguments(args);

			return f;
		}

		@Override
		public void onCreate(Bundle savedInstanceState) {
			super.onCreate(savedInstanceState);
			mNum = getArguments() != null ? getArguments().getInt("num") : 1;
		}

		//这里是初始化页面内容的函数，我们的监听就是在这儿
		@Override
		public View onCreateView(LayoutInflater inflater, ViewGroup container,
				Bundle savedInstanceState) {
			View v = inflater.inflate(R.layout.list, container, false);
			View text = v.findViewById(R.id.text);
			((TextView) text).setText("Fragment #" + mNum);
			text.setOnClickListener(new OnClickListener() {

				@Override
				public void onClick(View v) {
					// TODO Auto-generated method stub
					System.out.println("点击成功！");
				}
			});
			return v;
		}

		@Override
		public void onActivityCreated(Bundle savedInstanceState) {
			super.onActivityCreated(savedInstanceState);
			setListAdapter(new ArrayAdapter<String>(getActivity(),
					android.R.layout.simple_list_item_1, sCheeseStrings));
		}

		@Override
		public void onListItemClick(ListView l, View v, int position, long id) {
			Log.i("FragmentList", "Item clicked: " + id);
		}
	}
}

写监听可以 让 ArrayListFragment ， implement OnClickListener 即可

当有很多卡片时，得在 onCreateView 函数中 把不同的layout找出不来，分别进行监听 

	if (mNum == 0) {
		v = inflater.inflate(R.layout.xx, container, false);
	}