TabLayout、ViewPager和Fragment的多页面滑动

开发工具：Android Studio

1、首先在build.gradle(Module:app)中添加依赖。

compile 'com.android.support:appcompat-v7:22.2.0'
compile 'com.android.support:design:22.2.0'

2、在页面的布置中我们需要Tabs、三个Fragment和ViewPager来实现滑动的效果。首先，我们我们定义三个Fragment以及对应的Fragment对应的布局文件。

TabFragment1.java文件

public class TabFragment1 extends Fragment {

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_tab_fragment1,container,false);
    }
}

对应的fragment_tab_fragment1.xml文件

同理TabFragment2、fragment_tab_fragment2.xml文件以及TabFragment3、fragment_tab_fragment3.xml文件

3、实现PagerAdapter类，该类继承自FragmentStatePagerAdapter。

public class PagerAdapter extends FragmentStatePagerAdapter {
    int nNumOfTabs;
    public PagerAdapter(FragmentManager fm,int nNumOfTabs)
    {
        super(fm);
        this.nNumOfTabs=nNumOfTabs;
    }
    @Override
    public Fragment getItem(int position) {
       switch(position)
       {
           case 0:
               TabFragment1 tab1=new TabFragment1();
               return tab1;
           case 1:
               TabFragment2 tab2=new TabFragment2();
               return tab2;
           case 2:
               TabFragment3 tab3=new TabFragment3();
               return tab3;
       }
        return null;
    }

    @Override
    public int getCount() {
        return nNumOfTabs;
    }
}

4、具体的MainActivity的实现

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        TabLayout tabLayout = (TabLayout) findViewById(R.id.tab_layout);
        tabLayout.addTab(tabLayout.newTab().setText("Tab 1"));
        tabLayout.addTab(tabLayout.newTab().setText("Tab 2"));
        tabLayout.addTab(tabLayout.newTab().setText("Tab 3"));
        tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);

        final ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
        final PagerAdapter adapter = new PagerAdapter
                (getSupportFragmentManager(), tabLayout.getTabCount());
        viewPager.setAdapter(adapter);
        viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
        tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
            @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) {

            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

实现结果如下所示：

参考链接：http://blog.csdn.net/harvic880925/article/details/38557517