（转载）Android项目tab类型主界面总结

Android实现tab类型的界面方式主要有以下几种：

1、传统的ViewPager实现（ViewPager+ViewAdapter）

2、FragmentManager+Fragment实现

3、ViewPager+FragmentPagerAdapter实现

4、TabPageIndicator+ViewPager+FragmentPagerAdapter

1、传统的ViewPager实现

ViewPager+ViewAdapter

package com.example.mainframework02;

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.ViewGroup;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.LinearLayout;

public class TraditionalViewPagerAcvitity extends Activity {
    /**
     * ViewPager
     */
    private ViewPager mViewPager;
    /**
     * ViewPager的适配器
     */
    private PagerAdapter mAdapter;
    private List<View> mViews;
    private LayoutInflater mInflater;
    
    private int currentIndex;

    /**
     * 底部四个按钮
     */
    private LinearLayout mTabBtnWeixin;
    private LinearLayout mTabBtnFrd;
    private LinearLayout mTabBtnAddress;
    private LinearLayout mTabBtnSettings;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mInflater = LayoutInflater.from(this);
        mViewPager = (ViewPager) findViewById(R.id.id_viewpager);
        
        /**
         * 初始化View
         */
        initView();
        
        mViewPager.setAdapter(mAdapter);

        mViewPager.setOnPageChangeListener(new OnPageChangeListener()
        {

            @Override
            public void onPageSelected(int position)
            {
                resetTabBtn();
                switch (position)
                {
                case 0:
                    ((ImageButton) mTabBtnWeixin.findViewById(R.id.btn_tab_bottom_weixin))
                            .setImageResource(R.drawable.tab_weixin_pressed);
                    break;
                case 1:
                    ((ImageButton) mTabBtnFrd.findViewById(R.id.btn_tab_bottom_friend))
                            .setImageResource(R.drawable.tab_find_frd_pressed);
                    break;
                case 2:
                    ((ImageButton) mTabBtnAddress.findViewById(R.id.btn_tab_bottom_contact))
                            .setImageResource(R.drawable.tab_address_pressed);
                    break;
                case 3:
                    ((ImageButton) mTabBtnSettings.findViewById(R.id.btn_tab_bottom_setting))
                            .setImageResource(R.drawable.tab_settings_pressed);
                    break;
                }

                currentIndex = position;
            }

            @Override
            public void onPageScrolled(int arg0, float arg1, int arg2)
            {

            }

            @Override
            public void onPageScrollStateChanged(int arg0)
            {
            }
        });

    }

    protected void resetTabBtn()
    {
        ((ImageButton) mTabBtnWeixin.findViewById(R.id.btn_tab_bottom_weixin))
                .setImageResource(R.drawable.tab_weixin_normal);
        ((ImageButton) mTabBtnFrd.findViewById(R.id.btn_tab_bottom_friend))
                .setImageResource(R.drawable.tab_find_frd_normal);
        ((ImageButton) mTabBtnAddress.findViewById(R.id.btn_tab_bottom_contact))
                .setImageResource(R.drawable.tab_address_normal);
        ((ImageButton) mTabBtnSettings.findViewById(R.id.btn_tab_bottom_setting))
                .setImageResource(R.drawable.tab_settings_normal);
    }

    private void initView()
    {

        mTabBtnWeixin = (LinearLayout) findViewById(R.id.id_tab_bottom_weixin);
        mTabBtnFrd = (LinearLayout) findViewById(R.id.id_tab_bottom_friend);
        mTabBtnAddress = (LinearLayout) findViewById(R.id.id_tab_bottom_contact);
        mTabBtnSettings = (LinearLayout) findViewById(R.id.id_tab_bottom_setting);

        mViews = new ArrayList<View>();
        View first = mInflater.inflate(R.layout.main_tab_01, null);
        View second = mInflater.inflate(R.layout.main_tab_02, null);
        View third = mInflater.inflate(R.layout.main_tab_03, null);
        View fourth = mInflater.inflate(R.layout.main_tab_04, null);
        mViews.add(first);
        mViews.add(second);
        mViews.add(third);
        mViews.add(fourth);

        mAdapter = new PagerAdapter()
        {
            @Override
            public void destroyItem(ViewGroup container, int position, Object object)
            {
                container.removeView(mViews.get(position));
            }

            @Override
            public Object instantiateItem(ViewGroup container, int position)
            {
                View view = mViews.get(position);
                container.addView(view);
                return view;
            }

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

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

}

2、FragmentManager+Fragment实现

主要利用了Fragment在主内容界面对Fragment的add,hide等事务操作。

主Activity：

package com.example.mainframework02.fragment;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.LinearLayout;

import com.example.mainframework02.R;

public class FragmentMainActivity extends Activity implements OnClickListener
{
    private MainTab02 mTab02;
    private MainTab01 mTab01;
    private MainTab03 mTab03;
    private MainTab04 mTab04;

    /**
     * 底部四个按钮
     */
    private LinearLayout mTabBtnWeixin;
    private LinearLayout mTabBtnFrd;
    private LinearLayout mTabBtnAddress;
    private LinearLayout mTabBtnSettings;
    /**
     * 用于对Fragment进行管理
     */
    private FragmentManager fragmentManager;

    @SuppressLint("NewApi")
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.fragment_main);
        initViews();
        fragmentManager = getFragmentManager();
        setTabSelection(0);
    }

    

    private void initViews()
    {

        mTabBtnWeixin = (LinearLayout) findViewById(R.id.id_tab_bottom_weixin);
        mTabBtnFrd = (LinearLayout) findViewById(R.id.id_tab_bottom_friend);
        mTabBtnAddress = (LinearLayout) findViewById(R.id.id_tab_bottom_contact);
        mTabBtnSettings = (LinearLayout) findViewById(R.id.id_tab_bottom_setting);

        mTabBtnWeixin.setOnClickListener(this);
        mTabBtnFrd.setOnClickListener(this);
        mTabBtnAddress.setOnClickListener(this);
        mTabBtnSettings.setOnClickListener(this);
    }

    @Override
    public void onClick(View v)
    {
        switch (v.getId())
        {
        case R.id.id_tab_bottom_weixin:
            setTabSelection(0);
            break;
        case R.id.id_tab_bottom_friend:
            setTabSelection(1);
            break;
        case R.id.id_tab_bottom_contact:
            setTabSelection(2);
            break;
        case R.id.id_tab_bottom_setting:
            setTabSelection(3);
            break;

        default:
            break;
        }
    }

    /**
     * 根据传入的index参数来设置选中的tab页。
     * 
     */
    @SuppressLint("NewApi")
    private void setTabSelection(int index)
    {
        // 重置按钮
        resetBtn();
        // 开启一个Fragment事务
        FragmentTransaction transaction = fragmentManager.beginTransaction();
        // 先隐藏掉所有的Fragment，以防止有多个Fragment显示在界面上的情况
        hideFragments(transaction);
        switch (index)
        {
        case 0:
            // 当点击了消息tab时，改变控件的图片和文字颜色
            ((ImageButton) mTabBtnWeixin.findViewById(R.id.btn_tab_bottom_weixin))
                    .setImageResource(R.drawable.tab_weixin_pressed);
            if (mTab01 == null)
            {
                // 如果MessageFragment为空，则创建一个并添加到界面上
                mTab01 = new MainTab01();
                transaction.add(R.id.id_content, mTab01);
            } else
            {
                // 如果MessageFragment不为空，则直接将它显示出来
                transaction.show(mTab01);
            }
            break;
        case 1:
            // 当点击了消息tab时，改变控件的图片和文字颜色
            ((ImageButton) mTabBtnFrd.findViewById(R.id.btn_tab_bottom_friend))
                    .setImageResource(R.drawable.tab_find_frd_pressed);
            if (mTab02 == null)
            {
                // 如果MessageFragment为空，则创建一个并添加到界面上
                mTab02 = new MainTab02();
                transaction.add(R.id.id_content, mTab02);
            } else
            {
                // 如果MessageFragment不为空，则直接将它显示出来
                transaction.show(mTab02);
            }
            break;
        case 2:
            // 当点击了动态tab时，改变控件的图片和文字颜色
            ((ImageButton) mTabBtnAddress.findViewById(R.id.btn_tab_bottom_contact))
                    .setImageResource(R.drawable.tab_address_pressed);
            if (mTab03 == null)
            {
                // 如果NewsFragment为空，则创建一个并添加到界面上
                mTab03 = new MainTab03();
                transaction.add(R.id.id_content, mTab03);
            } else
            {
                // 如果NewsFragment不为空，则直接将它显示出来
                transaction.show(mTab03);
            }
            break;
        case 3:
            // 当点击了设置tab时，改变控件的图片和文字颜色
            ((ImageButton) mTabBtnSettings.findViewById(R.id.btn_tab_bottom_setting))
                    .setImageResource(R.drawable.tab_settings_pressed);
            if (mTab04 == null)
            {
                // 如果SettingFragment为空，则创建一个并添加到界面上
                mTab04 = new MainTab04();
                transaction.add(R.id.id_content, mTab04);
            } else
            {
                // 如果SettingFragment不为空，则直接将它显示出来
                transaction.show(mTab04);
            }
            break;
        }
        transaction.commit();
    }

    /**
     * 清除掉所有的选中状态。
     */
    private void resetBtn()
    {
        ((ImageButton) mTabBtnWeixin.findViewById(R.id.btn_tab_bottom_weixin))
                .setImageResource(R.drawable.tab_weixin_normal);
        ((ImageButton) mTabBtnFrd.findViewById(R.id.btn_tab_bottom_friend))
                .setImageResource(R.drawable.tab_find_frd_normal);
        ((ImageButton) mTabBtnAddress.findViewById(R.id.btn_tab_bottom_contact))
                .setImageResource(R.drawable.tab_address_normal);
        ((ImageButton) mTabBtnSettings.findViewById(R.id.btn_tab_bottom_setting))
                .setImageResource(R.drawable.tab_settings_normal);
    }

    /**
     * 将所有的Fragment都置为隐藏状态。
     * 
     * @param transaction
     *            用于对Fragment执行操作的事务
     */
    @SuppressLint("NewApi")
    private void hideFragments(FragmentTransaction transaction)
    {
        if (mTab01 != null)
        {
            transaction.hide(mTab01);
        }
        if (mTab02 != null)
        {
            transaction.hide(mTab02);
        }
        if (mTab03 != null)
        {
            transaction.hide(mTab03);
        }
        if (mTab04 != null)
        {
            transaction.hide(mTab04);
        }
        
    }

}

各个TabFragment，一共四个TabFragment。

package com.example.mainframework02.fragment;

import android.annotation.SuppressLint;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

@SuppressLint("NewApi")
public class MainTab01 extends Fragment
{

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
    {
        return inflater.inflate(com.example.mainframework02.R.layout.main_tab_01, container, false);

    }

}

评价：每个Fragment中的控件的处理，都是独立到各自的类中，相对来说主Activity简化了不少，可惜没有左右滑动的效果了。

3、ViewPager+Fragment实现

主要通过ViewPager和FragmentPagerAdapter一起来实现。

主Activity：

package com.example.mainframework03;

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

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.widget.ImageButton;
import android.widget.LinearLayout;

public class MainActivity extends FragmentActivity
{

    private ViewPager mViewPager;
    private FragmentPagerAdapter mAdapter;
    private List<Fragment> mFragments = new ArrayList<Fragment>();
    
    
    /**
     * 底部四个按钮
     */
    private LinearLayout mTabBtnWeixin;
    private LinearLayout mTabBtnFrd;
    private LinearLayout mTabBtnAddress;
    private LinearLayout mTabBtnSettings;


    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mViewPager = (ViewPager) findViewById(R.id.id_viewpager);

        
        initView();
        
        

        mAdapter = new FragmentPagerAdapter(getSupportFragmentManager())
        {

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

            @Override
            public Fragment getItem(int arg0)
            {
                return mFragments.get(arg0);
            }
        };
        
        mViewPager.setAdapter(mAdapter);
        
        
        mViewPager.setOnPageChangeListener(new OnPageChangeListener()
        {

            private int currentIndex;

            @Override
            public void onPageSelected(int position)
            {
                resetTabBtn();
                switch (position)
                {
                case 0:
                    ((ImageButton) mTabBtnWeixin.findViewById(R.id.btn_tab_bottom_weixin))
                            .setImageResource(R.drawable.tab_weixin_pressed);
                    break;
                case 1:
                    ((ImageButton) mTabBtnFrd.findViewById(R.id.btn_tab_bottom_friend))
                            .setImageResource(R.drawable.tab_find_frd_pressed);
                    break;
                case 2:
                    ((ImageButton) mTabBtnAddress.findViewById(R.id.btn_tab_bottom_contact))
                            .setImageResource(R.drawable.tab_address_pressed);
                    break;
                case 3:
                    ((ImageButton) mTabBtnSettings.findViewById(R.id.btn_tab_bottom_setting))
                            .setImageResource(R.drawable.tab_settings_pressed);
                    break;
                }

                currentIndex = position;
            }

            @Override
            public void onPageScrolled(int arg0, float arg1, int arg2)
            {

            }

            @Override
            public void onPageScrollStateChanged(int arg0)
            {
            }
        });

    }
    
    protected void resetTabBtn()
    {
        ((ImageButton) mTabBtnWeixin.findViewById(R.id.btn_tab_bottom_weixin))
                .setImageResource(R.drawable.tab_weixin_normal);
        ((ImageButton) mTabBtnFrd.findViewById(R.id.btn_tab_bottom_friend))
                .setImageResource(R.drawable.tab_find_frd_normal);
        ((ImageButton) mTabBtnAddress.findViewById(R.id.btn_tab_bottom_contact))
                .setImageResource(R.drawable.tab_address_normal);
        ((ImageButton) mTabBtnSettings.findViewById(R.id.btn_tab_bottom_setting))
                .setImageResource(R.drawable.tab_settings_normal);
    }

    private void initView()
    {

        mTabBtnWeixin = (LinearLayout) findViewById(R.id.id_tab_bottom_weixin);
        mTabBtnFrd = (LinearLayout) findViewById(R.id.id_tab_bottom_friend);
        mTabBtnAddress = (LinearLayout) findViewById(R.id.id_tab_bottom_contact);
        mTabBtnSettings = (LinearLayout) findViewById(R.id.id_tab_bottom_setting);

        MainTab01 tab01 = new MainTab01();
        MainTab02 tab02 = new MainTab02();
        MainTab03 tab03 = new MainTab03();
        MainTab04 tab04 = new MainTab04();
        mFragments.add(tab01);
        mFragments.add(tab02);
        mFragments.add(tab03);
        mFragments.add(tab04);
    }
}

还有4个TabFragment，四个基本一样。

package com.example.mainframework03;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class MainTab01 extends Fragment
{

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
    {
        return  inflater.inflate(R.layout.main_tab_01, container, false);
    
    }

}

评价：实现效果和第一种效果一模一样，每个Fragment独自处理自己内部的逻辑，代码整洁很多，并且支持左右滑动。感觉是第一种和第二种的结合版本。

4、TabPageIndicator+ViewPager+FragmentPagerAdapter

实现方式和3是一致的，但是使用了TabPageIndicator作为tab的指示器，效果还是不错的，这个之前写过，就不再贴代码了。