学步园

先上效果图：

代码思路：

1、设置top和bottom布局；

2、设置主界面布局；

3、初始化控件、视图和PagerAdapter，并绑定适配器；

4、初始化事件，4个组合控件的onclick事件；

5、监听滑动事件，切换图片。

代码：

1、top布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="45dp"
    android:background="@drawable/title_bar"
    android:gravity="center"
    android:orientation="vertical" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="微信"
        android:textColor="#ffffff"
        android:textSize="20sp"
        android:textStyle="bold" />

</LinearLayout>

2、bottom布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="55dp"
    android:background="@drawable/bottom_bar"
    android:orientation="horizontal" >

    <LinearLayout
        android:id="@+id/tab_weixin"
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="center"
        android:orientation="vertical" >

        <ImageButton
            android:id="@+id/tab_weixin_img"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/tab_weixin_pressed"
            android:clickable="false" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="微信"
            android:textColor="#ffffff" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/tab_frd"
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="center"
        android:orientation="vertical" >

        <ImageButton
            android:id="@+id/tab_frd_img"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/tab_find_frd_normal"
            android:clickable="false" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="朋友"
            android:textColor="#ffffff" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/tab_address"
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="center"
        android:orientation="vertical" >

        <ImageButton
            android:id="@+id/tab_address_img"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/tab_address_normal"
            android:clickable="false" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="通讯录"
            android:textColor="#ffffff" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/tab_setting"
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="center"
        android:orientation="vertical" >

        <ImageButton
            android:id="@+id/tab_setting_img"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/tab_settings_normal"
            android:clickable="false" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="设置"
            android:textColor="#ffffff" />
    </LinearLayout>

</LinearLayout>

3、设置主界面布局；

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="${packageName}.${activityClass}" >

    <include layout="@layout/top" />

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

    <include layout="@layout/bottom" />

</LinearLayout>

4、初始化控件

<span style="white-space:pre">	</span>private ViewPager viewPager;
	private PagerAdapter pagerAdapter;
	private List<View> views = new ArrayList<View>();

	private LinearLayout weixinLayout, frdLayout, addressLayout, settingLayout;
	private ImageButton weixinButton, frdButton, addressButton, settingButton;

<span style="white-space:pre">	</span>private void initControl() {
		viewPager = (ViewPager) findViewById(R.id.mypage);
		weixinLayout = (LinearLayout) findViewById(R.id.tab_weixin);
		frdLayout = (LinearLayout) findViewById(R.id.tab_frd);
		addressLayout = (LinearLayout) findViewById(R.id.tab_address);
		settingLayout = (LinearLayout) findViewById(R.id.tab_setting);

		weixinButton = (ImageButton) findViewById(R.id.tab_weixin_img);
		frdButton = (ImageButton) findViewById(R.id.tab_frd_img);
		addressButton = (ImageButton) findViewById(R.id.tab_address_img);
		settingButton = (ImageButton) findViewById(R.id.tab_setting_img);

		LayoutInflater inflater = LayoutInflater.from(this);
		View tab01 = inflater.inflate(R.layout.tab01, null);
		View tab02 = inflater.inflate(R.layout.tab02, null);
		View tab03 = inflater.inflate(R.layout.tab03, null);
		View tab04 = inflater.inflate(R.layout.tab04, null);

		views.add(tab01);
		views.add(tab02);
		views.add(tab03);
		views.add(tab04);

		pagerAdapter = new PagerAdapter() {

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

			@Override
			public Object instantiateItem(ViewGroup container, int position) {
				View view = views.get(position);
				container.addView(view);
				return view;
			}
			
			@Override
			public boolean isViewFromObject(View arg0, Object arg1) {
				return arg0 == arg1;
			}

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

		viewPager.setAdapter(pagerAdapter);
	}

5、初始化事件

<span style="white-space:pre">	</span>private void initEvent() {
		weixinLayout.setOnClickListener(this);
		frdLayout.setOnClickListener(this);
		addressLayout.setOnClickListener(this);
		settingLayout.setOnClickListener(this);

		viewPager.setOnPageChangeListener(this);
	}
<span style="white-space:pre">	</span>public void onClick(View v) {
		resetImage();
		switch (v.getId()) {
		case R.id.tab_weixin:
			viewPager.setCurrentItem(0);
			weixinButton.setImageResource(R.drawable.tab_weixin_pressed);
			break;
		case R.id.tab_frd:
			viewPager.setCurrentItem(1);
			frdButton.setImageResource(R.drawable.tab_find_frd_pressed);
			break;
		case R.id.tab_address:
			viewPager.setCurrentItem(2);
			addressButton.setImageResource(R.drawable.tab_address_pressed);
			break;
		case R.id.tab_setting:
			viewPager.setCurrentItem(3);
			settingButton.setImageResource(R.drawable.tab_settings_pressed);
			break;

		}
	}

	private void resetImage() {
		weixinButton.setImageResource(R.drawable.tab_weixin_normal);
		frdButton.setImageResource(R.drawable.tab_find_frd_normal);
		addressButton.setImageResource(R.drawable.tab_address_normal);
		settingButton.setImageResource(R.drawable.tab_settings_normal);
	}

	@Override
	public void onPageScrollStateChanged(int arg0) {
		int currentItem = viewPager.getCurrentItem();
		resetImage();
		switch (currentItem) {
		case 0:
			weixinButton.setImageResource(R.drawable.tab_weixin_pressed);
			break;
		case 1:
			frdButton.setImageResource(R.drawable.tab_find_frd_pressed);
			break;
		case 2:
			addressButton.setImageResource(R.drawable.tab_address_pressed);
			break;
		case 3:
			settingButton.setImageResource(R.drawable.tab_settings_pressed);
			break;

		}
	}

	@Override
	public void onPageScrolled(int arg0, float arg1, int arg2) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void onPageSelected(int arg0) {
		// TODO Auto-generated method stub

	}

java 完整代码：

package com.example.viewpagerdemo;

import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.ImageButton;
import android.widget.LinearLayout;

public class MainActivity extends Activity implements OnClickListener, OnPageChangeListener {

	private ViewPager viewPager;
	private PagerAdapter pagerAdapter;
	private List<View> views = new ArrayList<View>();

	private LinearLayout weixinLayout, frdLayout, addressLayout, settingLayout;
	private ImageButton weixinButton, frdButton, addressButton, settingButton;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		requestWindowFeature(Window.FEATURE_NO_TITLE);
		setContentView(R.layout.activity_main);
		initControl();
		initEvent();
	}

	private void initEvent() {
		weixinLayout.setOnClickListener(this);
		frdLayout.setOnClickListener(this);
		addressLayout.setOnClickListener(this);
		settingLayout.setOnClickListener(this);

		viewPager.setOnPageChangeListener(this);
	}

	private void initControl() {
		viewPager = (ViewPager) findViewById(R.id.mypage);
		weixinLayout = (LinearLayout) findViewById(R.id.tab_weixin);
		frdLayout = (LinearLayout) findViewById(R.id.tab_frd);
		addressLayout = (LinearLayout) findViewById(R.id.tab_address);
		settingLayout = (LinearLayout) findViewById(R.id.tab_setting);

		weixinButton = (ImageButton) findViewById(R.id.tab_weixin_img);
		frdButton = (ImageButton) findViewById(R.id.tab_frd_img);
		addressButton = (ImageButton) findViewById(R.id.tab_address_img);
		settingButton = (ImageButton) findViewById(R.id.tab_setting_img);

		LayoutInflater inflater = LayoutInflater.from(this);
		View tab01 = inflater.inflate(R.layout.tab01, null);
		View tab02 = inflater.inflate(R.layout.tab02, null);
		View tab03 = inflater.inflate(R.layout.tab03, null);
		View tab04 = inflater.inflate(R.layout.tab04, null);

		views.add(tab01);
		views.add(tab02);
		views.add(tab03);
		views.add(tab04);

		pagerAdapter = new PagerAdapter() {

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

			@Override
			public Object instantiateItem(ViewGroup container, int position) {
				View view = views.get(position);
				container.addView(view);
				return view;
			}
			
			@Override
			public boolean isViewFromObject(View arg0, Object arg1) {
				return arg0 == arg1;
			}

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

		viewPager.setAdapter(pagerAdapter);
	}

	@Override
	public void onClick(View v) {
		resetImage();
		switch (v.getId()) {
		case R.id.tab_weixin:
			viewPager.setCurrentItem(0);
			weixinButton.setImageResource(R.drawable.tab_weixin_pressed);
			break;
		case R.id.tab_frd:
			viewPager.setCurrentItem(1);
			frdButton.setImageResource(R.drawable.tab_find_frd_pressed);
			break;
		case R.id.tab_address:
			viewPager.setCurrentItem(2);
			addressButton.setImageResource(R.drawable.tab_address_pressed);
			break;
		case R.id.tab_setting:
			viewPager.setCurrentItem(3);
			settingButton.setImageResource(R.drawable.tab_settings_pressed);
			break;

		}
	}

	private void resetImage() {
		weixinButton.setImageResource(R.drawable.tab_weixin_normal);
		frdButton.setImageResource(R.drawable.tab_find_frd_normal);
		addressButton.setImageResource(R.drawable.tab_address_normal);
		settingButton.setImageResource(R.drawable.tab_settings_normal);
	}

	@Override
	public void onPageScrollStateChanged(int arg0) {
		int currentItem = viewPager.getCurrentItem();
		resetImage();
		switch (currentItem) {
		case 0:
			weixinButton.setImageResource(R.drawable.tab_weixin_pressed);
			break;
		case 1:
			frdButton.setImageResource(R.drawable.tab_find_frd_pressed);
			break;
		case 2:
			addressButton.setImageResource(R.drawable.tab_address_pressed);
			break;
		case 3:
			settingButton.setImageResource(R.drawable.tab_settings_pressed);
			break;

		}
	}

	@Override
	public void onPageScrolled(int arg0, float arg1, int arg2) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void onPageSelected(int arg0) {
		// TODO Auto-generated method stub

	}
}

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