标签滑动 - 怎么样？

作者: 筱梨
发布时间: 2025-01-08 04:28:48 (19天前)
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蜡笔小辛 | 2019-08-31 10-32

<div class =“post-text”itemprop =“text”> <pre> <code> @Override public Fragment getItem(int position) { switch (position) { case 0: tab1 tab1 = new tab1(); return tab1; case 1: tab2 tab2 = new tab2(); return tab2; case 3: // Should be 2 tab3 tab3 =new tab3(); return tab3; default: return null ; } </code> </pre> <P> 首先，纠正你的的<strong> <code> CASE </code> </强> 部分。 </p> <pre> <code> case 2: tab3 tab3 =new tab3(); return tab3; </code> </pre> <UL> <LI> 的<strong> 禁用即时运行 </强> 。 </LI> </UL> </DIV>

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林老爷的日常 | 2019-08-31 10-32

<div class =“post-text”itemprop =“text”> <P> 这个问题有另一个解决方案 </p> <pre> <code> private ViewPager mViewPager; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); getSupportActionBar().setDisplayHomeAsUpEnabled(true); // Set up the ViewPager with the sections adapter. mViewPager = (ViewPager) findViewById(R.id.container); setupViewPager(mViewPager); //Replace your line to this TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs); tabLayout.setupWithViewPager(mViewPager); FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab); fab.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG) .setAction("Action", null).show(); } }); } //method for adding fragment to the adapter private void setupViewPager(ViewPager viewPager) { SectionsPagerAdapter adapter = new SectionsPagerAdapter(getSupportFragmentManager()); adapter.addFragment(new TabOne(), "ONE"); adapter.addFragment(new TabSecond(), "TWO"); adapter.addFragment(new TabThird(), "THREE"); viewPager.setAdapter(adapter); } public class SectionsPagerAdapter extends FragmentPagerAdapter { private final List<Fragment> mFragmentList = new ArrayList<>(); private final List<String> mFragmentTitleList = new ArrayList<>(); public SectionsPagerAdapter(FragmentManager fm) { super(fm); } // add this method in your adapter public void addFragment(Fragment fragment, String title) { mFragmentList.add(fragment); mFragmentTitleList.add(title); } @Override public Fragment getItem(int position) { return mFragmentList.get(position); } @Override public int getCount() { return mFragmentList.size(); } @Override public CharSequence getPageTitle(int position) { return mFragmentTitleList.get(position); } } </code> </pre> <P> } </p> </DIV>

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