使用TabLayout、ViewPager和Fragment实现顶部菜单可滑动切换

来源：互联网发布：24网络交换机怎么连接编辑：程序博客网时间：2024/05/21 04:19

效果图如下

首先

要使用控件需要添加design library，在Android Studio中添加

compile 'com.android.support:design:23.4.0'

然后是布局文件

<?xml version="1.0" encoding="utf-8"?>  <RelativeLayout 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"      xmlns:app="http://schemas.android.com/apk/res-auto"      tools:context="com.lg.tablayoutdemo.MainActivity">         <android.support.design.widget.TabLayout          android:id="@+id/tab_layou"          android:layout_width="match_parent"          app:tabIndicatorColor="@android:color/holo_blue_light"          app:tabTextColor="@android:color/darker_gray"          app:tabSelectedTextColor="@android:color/black"          android:layout_height="wrap_content" />         <android.support.v4.view.ViewPager          android:id="@+id/view_pager"          android:layout_below="@id/tab_layou"          android:layout_width="match_parent"          android:layout_height="match_parent" />     </RelativeLayout>

其中TabLayout中tabIndicatorColor属性为标签底部下滑线颜色，tabTextColor为标签未选中时字体颜色,tabSelectedTextColor为选中时字体颜色

自定一个FragmentPagerAdapter适配器

public class MyViewPagerAdapter extends FragmentPagerAdapter {      private List<Fragment> fragments;      private String[] titles;         public MyViewPagerAdapter(FragmentManager fm, String[] titles, List<Fragment> fragments) {          super(fm);          this.titles = titles;          this.fragments = fragments;      }         @Override      public Fragment getItem(int arg0) {          return fragments.get(arg0);      }         @Override      public CharSequence getPageTitle(int position) {          return titles[position];      }         @Override      public int getCount() {          return fragments.size();      }  }

Activity代码

Fragment代码不贴了

public class MainActivity extends AppCompatActivity implements TabLayout.OnTabSelectedListener {      private TabLayout tabLayout;      private ViewPager viewPager;      private MyViewPagerAdapter viewPagerAdapter;      //TabLayout标签      private String[] titles=new String[]{"ANDROID","JAVA","C#","PHP"};      private List<Fragment> fragments=new ArrayList<>();         @Override      protected void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          setContentView(R.layout.activity_main);          init();      }         private void init(){          tabLayout=(TabLayout)findViewById(R.id.tab_layou);          viewPager=(ViewPager)findViewById(R.id.view_pager);          //设置TabLayout标签的显示方式          tabLayout.setTabMode(TabLayout.MODE_FIXED);          //循环注入标签          for (String tab:titles){            tabLayout.addTab(tabLayout.newTab().setText(tab));          }          //设置TabLayout点击事件          tabLayout.setOnTabSelectedListener(this);             fragments.add(new AndroidFragment());          fragments.add(new JavaFragment());          fragments.add(new CshapFragment());          fragments.add(new PhpFragment());          viewPagerAdapter=new MyViewPagerAdapter(getSupportFragmentManager(),titles,fragments);          viewPager.setAdapter(viewPagerAdapter);          tabLayout.setupWithViewPager(viewPager);      }         @Override      public void onTabSelected(TabLayout.Tab tab) {          viewPager.setCurrentItem(tab.getPosition());      }         @Override      public void onTabUnselected(TabLayout.Tab tab) {         }         @Override      public void onTabReselected(TabLayout.Tab tab) {         }  }

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