1 效果图
这里我们没有实现滑动切换view的功能 2 具体实现： 2.1 布局文件:top.xml, bottom.xml,tab01.xml,tab02.xml,tab03.xml,tab04.xml 具体请参考上述博客 2.2 新建4个Fragment，WeixinFragment，FrdFragment,AddressFragment,SettingFragment，分别对应tab01.xml,tab02.xml,tab03.xml,tab04.xml，其中这个Fragment是android.support.v4.app下面的（为了更好的兼容低版本的安卓设备），此时注意，以下凡是用到的Fragment都要是android.support.v4.app下的，这样不易出问题。 WeixinFragment package com.example.imooc_weixinfragment;import android.os.Bundle;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;public class WeixinFragment extends Fragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { //引入我们的布局 return inflater.inflate(R.layout.tab01, container, false); }} FrdFragment
package com.example.imooc_weixinfragment;import android.os.Bundle;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;public class FrdFragment extends Fragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { //引入我们的布局 return inflater.inflate(R.layout.tab02, container, false); }} AddressFragment
package com.example.imooc_weixinfragment;import android.os.Bundle;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;public class AddressFragment extends Fragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { //引入我们的布局 return inflater.inflate(R.layout.tab03, container, false); }} SettingFragment
package com.example.imooc_weixinfragment;import android.os.Bundle;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;public class SettingFragment extends Fragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { //引入我们的布局 return inflater.inflate(R.layout.tab04, container, false); }} activity_main.xml，这里我们使用FrameLayout代替viewPager
2.3 MainActivity
package com.example.imooc_weixinfragment;import android.app.Activity;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.FragmentTransaction;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.view.Window;import android.view.View.OnClickListener;import android.widget.ImageButton;import android.widget.LinearLayout;//我们使用的是android v4包下的fragment,这里必须要继承自FragmentActivity，而不是Activitypublic class MainActivity extends FragmentActivity implements OnClickListener{ //底部的4个导航控件 private LinearLayout mTabWeixin; private LinearLayout mTabFrd; private LinearLayout mTabAddress; private LinearLayout mTabSetting; //底部4个导航控件中的图片按钮 private ImageButton mImgWeixin; private ImageButton mImgFrd; private ImageButton mImgAddress; private ImageButton mImgSetting; //初始化4个Fragment private Fragment tab01; private Fragment tab02; private Fragment tab03; private Fragment tab04; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_main); initView();//初始化所有的view initEvents(); setSelect(0);//默认显示微信聊天界面 } private void initEvents() { mTabWeixin.setOnClickListener(this); mTabFrd.setOnClickListener(this); mTabAddress.setOnClickListener(this); mTabSetting.setOnClickListener(this); } private void initView() { mTabWeixin = (LinearLayout)findViewById(R.id.id_tab_weixin); mTabFrd = (LinearLayout)findViewById(R.id.id_tab_frd); mTabAddress = (LinearLayout)findViewById(R.id.id_tab_address); mTabSetting = (LinearLayout)findViewById(R.id.id_tab_setting); mImgWeixin = (ImageButton)findViewById(R.id.id_tab_weixin_img); mImgFrd = (ImageButton)findViewById(R.id.id_tab_frd_img); mImgAddress = (ImageButton)findViewById(R.id.id_tab_address_img); mImgSetting = (ImageButton)findViewById(R.id.id_tab_setting_img); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } @Override public void onClick(View v) { resetImg(); switch (v.getId()) { case R.id.id_tab_weixin://当点击微信按钮时，切换图片为亮色，切换fragment为微信聊天界面 setSelect(0); break; case R.id.id_tab_frd: setSelect(1); break; case R.id.id_tab_address: setSelect(2); break; case R.id.id_tab_setting: setSelect(3); break; default: break; } } /* * 将图片设置为亮色的；切换显示内容的fragment * */ private void setSelect(int i) { FragmentManager fm = getSupportFragmentManager(); FragmentTransaction transaction = fm.beginTransaction();//创建一个事务 hideFragment(transaction);//我们先把所有的Fragment隐藏了，然后下面再开始处理具体要显示的Fragment switch (i) { case 0: if (tab01 == null) { tab01 = new WeixinFragment(); /* * 将Fragment添加到活动中，public abstract FragmentTransaction add (int containerViewId, Fragment fragment) *containerViewId即为Optional identifier of the container this fragment is to be placed in. If 0, it will not be placed in a container. * */ transaction.add(R.id.id_content, tab01);//将微信聊天界面的Fragment添加到Activity中 }else { transaction.show(tab01); } mImgWeixin.setImageResource(R.drawable.tab_weixin_pressed); break; case 1: if (tab02 == null) { tab02 = new FrdFragment(); transaction.add(R.id.id_content, tab02); }else { transaction.show(tab02); } mImgFrd.setImageResource(R.drawable.tab_find_frd_pressed); break; case 2: if (tab03 == null) { tab03 = new AddressFragment(); transaction.add(R.id.id_content, tab03); }else { transaction.show(tab03); } mImgAddress.setImageResource(R.drawable.tab_address_pressed); break; case 3: if (tab04 == null) { tab04 = new SettingFragment(); transaction.add(R.id.id_content, tab04); }else { transaction.show(tab04); } mImgSetting.setImageResource(R.drawable.tab_settings_pressed); break; default: break; } transaction.commit();//提交事务 } /* * 隐藏所有的Fragment * */ private void hideFragment(FragmentTransaction transaction) { if (tab01 != null) { transaction.hide(tab01); } if (tab02 != null) { transaction.hide(tab02); } if (tab03 != null) { transaction.hide(tab03); } if (tab04 != null) { transaction.hide(tab04); } } private void resetImg() { mImgWeixin.setImageResource(R.drawable.tab_weixin_normal); mImgFrd.setImageResource(R.drawable.tab_find_frd_normal); mImgAddress.setImageResource(R.drawable.tab_address_normal); mImgSetting.setImageResource(R.drawable.tab_settings_normal); }} 源码在这里：