Android实现Tab布局的4种方式(Fragment+TabPageIndicator+ViewPager)
作者:鸿洋_
Android现在实现Tab类型的界面方式越来越多,今天就把常见的实现方式给大家来个总结。目前写了:
1、传统的ViewPager实现
2、FragmentManager+Fragment实现
3、ViewPager+FragmentPagerAdapter实现
4、TabPageIndicator+ViewPager+FragmentPagerAdapter
1、传统的ViewPager实现
主要就是ViewPager+ViewAdapter这个还是比较常见的,就不多说了
效果图:
代码:
package com.example.mainframework02; import javautilArrayList; import javautilList; import androidappActivity; import androidosBundle; import androidsupportvviewPagerAdapter; import androidsupportvviewViewPager; import androidsupportvviewViewPagerOnPageChangeListener; import androidviewLayoutInflater; import androidviewView; import androidviewViewGroup; import androidwidgetImageButton; import androidwidgetImageView; import androidwidgetLinearLayout; 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) { superonCreate(savedInstanceState); setContentView(Rlayoutactivity_main); mInflater = LayoutInflaterfrom(this); mViewPager = (ViewPager) findViewById(Ridid_viewpager); /** * 初始化View */ initView(); mViewPagersetAdapter(mAdapter); mViewPagersetOnPageChangeListener(new OnPageChangeListener() { @Override public void onPageSelected(int position) { resetTabBtn(); switch (position) { case 0: ((ImageButton) mTabBtnWeixinfindViewById(Ridbtn_tab_bottom_weixin)) setImageResource(Rdrawabletab_weixin_pressed); break; case 1: ((ImageButton) mTabBtnFrdfindViewById(Ridbtn_tab_bottom_friend)) setImageResource(Rdrawabletab_find_frd_pressed); break; case 2: ((ImageButton) mTabBtnAddressfindViewById(Ridbtn_tab_bottom_contact)) setImageResource(Rdrawabletab_address_pressed); break; case 3: ((ImageButton) mTabBtnSettingsfindViewById(Ridbtn_tab_bottom_setting)) setImageResource(Rdrawabletab_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) mTabBtnWeixinfindViewById(Ridbtn_tab_bottom_weixin)) setImageResource(Rdrawabletab_weixin_normal); ((ImageButton) mTabBtnFrdfindViewById(Ridbtn_tab_bottom_friend)) setImageResource(Rdrawabletab_find_frd_normal); ((ImageButton) mTabBtnAddressfindViewById(Ridbtn_tab_bottom_contact)) setImageResource(Rdrawabletab_address_normal); ((ImageButton) mTabBtnSettingsfindViewById(Ridbtn_tab_bottom_setting)) setImageResource(Rdrawabletab_settings_normal); } private void initView() { mTabBtnWeixin = (LinearLayout) findViewById(Ridid_tab_bottom_weixin); mTabBtnFrd = (LinearLayout) findViewById(Ridid_tab_bottom_friend); mTabBtnAddress = (LinearLayout) findViewById(Ridid_tab_bottom_contact); mTabBtnSettings = (LinearLayout) findViewById(Ridid_tab_bottom_setting); mViews = new ArrayList<View>(); View first = mInflaterinflate(Rlayoutmain_tab_01, null); View second = mInflaterinflate(Rlayoutmain_tab_02, null); View third = mInflaterinflate(Rlayoutmain_tab_03, null); View fourth = mInflaterinflate(Rlayoutmain_tab_04, null); mViewsadd(first); mViewsadd(second); mViewsadd(third); mViewsadd(fourth); mAdapter = new PagerAdapter() { @Override public void destroyItem(ViewGroup container, int position, Object object) { containerremoveView(mViewsget(position)); } @Override public Object instantiateItem(ViewGroup container, int position) { View view = mViewsget(position); containeraddView(view); return view; } @Override public boolean isViewFromObject(View arg0, Object arg1) { return arg0 == arg1; } @Override public int getCount() { return mViewssize(); } }; } }
评价:所有的代码都集中在一个Activity中,显得代码比较乱。
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。
效果图:
代码:
主Activity
package com.example.mainframework02.fragment; import androidannotationSuppressLint; import androidappActivity; import androidappFragmentManager; import androidappFragmentTransaction; import androidosBundle; import androidviewView; import androidviewViewOnClickListener; import androidwidgetImageButton; import androidwidgetLinearLayout; import comexamplemainframeworkR; 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) { superonCreate(savedInstanceState); setContentView(Rlayoutfragment_main); initViews(); fragmentManager = getFragmentManager(); setTabSelection(0); } private void initViews() { mTabBtnWeixin = (LinearLayout) findViewById(Ridid_tab_bottom_weixin); mTabBtnFrd = (LinearLayout) findViewById(Ridid_tab_bottom_friend); mTabBtnAddress = (LinearLayout) findViewById(Ridid_tab_bottom_contact); mTabBtnSettings = (LinearLayout) findViewById(Ridid_tab_bottom_setting); mTabBtnWeixinsetOnClickListener(this); mTabBtnFrdsetOnClickListener(this); mTabBtnAddresssetOnClickListener(this); mTabBtnSettingssetOnClickListener(this); } @Override public void onClick(View v) { switch (vgetId()) { case Ridid_tab_bottom_weixin: setTabSelection(0); break; case Ridid_tab_bottom_friend: setTabSelection(1); break; case Ridid_tab_bottom_contact: setTabSelection(2); break; case Ridid_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 = fragmentManagerbeginTransaction(); // 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) mTabBtnWeixinfindViewById(Ridbtn_tab_bottom_weixin)) setImageResource(Rdrawabletab_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(); transactionadd(Ridid_content, mTab01); } else { // 如果MessageFragment不为空,则直接将它显示出来 transactionshow(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) mTabBtnFrdfindViewById(Ridbtn_tab_bottom_friend)) setImageResource(Rdrawabletab_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(); transactionadd(Ridid_content, mTab02); } else { // 如果MessageFragment不为空,则直接将它显示出来 transactionshow(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) mTabBtnAddressfindViewById(Ridbtn_tab_bottom_contact)) setImageResource(Rdrawabletab_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(); transactionadd(Ridid_content, mTab03); } else { // 如果NewsFragment不为空,则直接将它显示出来 transactionshow(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) mTabBtnSettingsfindViewById(Ridbtn_tab_bottom_setting)) setImageResource(Rdrawabletab_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(); transactionadd(Ridid_content, mTab04); } else { // 如果SettingFragment不为空,则直接将它显示出来 transactionshow(mTab04); } break; } transactioncommit(); } /** * 清除掉所有的选中状态。 */ private void resetBtn() { ((ImageButton) mTabBtnWeixinfindViewById(Ridbtn_tab_bottom_weixin)) setImageResource(Rdrawabletab_weixin_normal); ((ImageButton) mTabBtnFrdfindViewById(Ridbtn_tab_bottom_friend)) setImageResource(Rdrawabletab_find_frd_normal); ((ImageButton) mTabBtnAddressfindViewById(Ridbtn_tab_bottom_contact)) setImageResource(Rdrawabletab_address_normal); ((ImageButton) mTabBtnSettingsfindViewById(Ridbtn_tab_bottom_setting)) setImageResource(Rdrawabletab_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) { transactionhide(mTab01); } if (mTab02 != null) { transactionhide(mTab02); } if (mTab03 != null) { transactionhide(mTab03); } if (mTab04 != null) { transactionhide(mTab04); } } }
各个TabFragment,一共四个TabFragment,下面贴出两个,基本都一样。
package com.example.mainframework02.fragment; import androidannotationSuppressLint; import androidappFragment; import androidosBundle; import androidviewLayoutInflater; import androidviewView; import androidviewViewGroup; @SuppressLint("NewApi") public class MainTab01 extends Fragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { return inflaterinflate(comexamplemainframeworkRlayoutmain_tab_01, container, false); } } package com.example.mainframework02.fragment; import androidannotationSuppressLint; import androidappFragment; import androidosBundle; import androidviewLayoutInflater; import androidviewView; import androidviewViewGroup; import comexamplemainframeworkR; @SuppressLint("NewApi") public class MainTab02 extends Fragment { public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { return inflaterinflate(Rlayoutmain_tab_02, 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。
效果图:
代码:
主Activity
package com.example.mainframework03; import javautilArrayList; import javautilList; import androidosBundle; import androidsupportvappFragment; import androidsupportvappFragmentActivity; import androidsupportvappFragmentPagerAdapter; import androidsupportvviewViewPager; import androidsupportvviewViewPagerOnPageChangeListener; import androidwidgetImageButton; import androidwidgetLinearLayout; 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) { superonCreate(savedInstanceState); setContentView(Rlayoutactivity_main); mViewPager = (ViewPager) findViewById(Ridid_viewpager); initView(); mAdapter = new FragmentPagerAdapter(getSupportFragmentManager()) { @Override public int getCount() { return mFragmentssize(); } @Override public Fragment getItem(int arg0) { return mFragmentsget(arg0); } }; mViewPagersetAdapter(mAdapter); mViewPagersetOnPageChangeListener(new OnPageChangeListener() { private int currentIndex; @Override public void onPageSelected(int position) { resetTabBtn(); switch (position) { case 0: ((ImageButton) mTabBtnWeixinfindViewById(Ridbtn_tab_bottom_weixin)) setImageResource(Rdrawabletab_weixin_pressed); break; case 1: ((ImageButton) mTabBtnFrdfindViewById(Ridbtn_tab_bottom_friend)) setImageResource(Rdrawabletab_find_frd_pressed); break; case 2: ((ImageButton) mTabBtnAddressfindViewById(Ridbtn_tab_bottom_contact)) setImageResource(Rdrawabletab_address_pressed); break; case 3: ((ImageButton) mTabBtnSettingsfindViewById(Ridbtn_tab_bottom_setting)) setImageResource(Rdrawabletab_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) mTabBtnWeixinfindViewById(Ridbtn_tab_bottom_weixin)) setImageResource(Rdrawabletab_weixin_normal); ((ImageButton) mTabBtnFrdfindViewById(Ridbtn_tab_bottom_friend)) setImageResource(Rdrawabletab_find_frd_normal); ((ImageButton) mTabBtnAddressfindViewById(Ridbtn_tab_bottom_contact)) setImageResource(Rdrawabletab_address_normal); ((ImageButton) mTabBtnSettingsfindViewById(Ridbtn_tab_bottom_setting)) setImageResource(Rdrawabletab_settings_normal); } private void initView() { mTabBtnWeixin = (LinearLayout) findViewById(Ridid_tab_bottom_weixin); mTabBtnFrd = (LinearLayout) findViewById(Ridid_tab_bottom_friend); mTabBtnAddress = (LinearLayout) findViewById(Ridid_tab_bottom_contact); mTabBtnSettings = (LinearLayout) findViewById(Ridid_tab_bottom_setting); MainTab01 tab01 = new MainTab01(); MainTab02 tab02 = new MainTab02(); MainTab03 tab03 = new MainTab03(); MainTab04 tab04 = new MainTab04(); mFragmentsadd(tab01); mFragmentsadd(tab02); mFragmentsadd(tab03); mFragmentsadd(tab04); } }
还有4个TabFragment,下面贴一个,四个基本一样
package com.example.mainframework03; import androidosBundle; import androidsupportvappFragment; import androidviewLayoutInflater; import androidviewView; import androidviewViewGroup; public class MainTab01 extends Fragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { return inflaterinflate(Rlayoutmain_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。
效果图:
好了,就总结了这么多,肯定还有很多别的实现方式,大家可以留言,有时间会继续完善这篇总结的。
第一种和第二种的源码:demo下载
第三种方式的源码:demo下载
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。