Question

我有一个旋转器，其值从第1周到第12周。在从微调器中选择任何一周时，7个片段（从星期日到星期一）被加载到我的viewpager和tablayout中。唯一的区别在于每周和每天的数据。

现在问题是每周都会在周日片段中填充正确的数据。当我滑到星期一片段时，填充的数据是星期二，依此类推。

以下是我的viewpagerAdapter类

viewPager = (ViewPager) mView.findViewById(R.id.viewpager);
    setupViewPager(viewPager, 1);
    TabLayout mTabLayout = (TabLayout)  mView.findViewById(R.id.tabs);
    mTabLayout.setupWithViewPager(viewPager);

@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
        setupViewPager(viewPager, position + 1);
}

private void setupViewPager(ViewPager viewPager, int weekNo) {
    ViewPagerAdapter adapter = new ViewPagerAdapter(getChildFragmentManager());

    final SunFragment sunFragment = new SunFragment();
    Bundle sunBundle = new Bundle();
    sunBundle.putInt(DayFragment.KEY_WEEK_NO, weekNo);
    sunFragment.setArguments(sunBundle);
    adapter.addFragment(sunFragment, "Sunday");

    final MonFragment monFragment = new MonFragment();
    Bundle monBundle = new Bundle();
    monBundle.putInt(DayFragment.KEY_WEEK_NO, weekNo);
    monFragment.setArguments(monBundle);
    adapter.addFragment(monFragment, "Monday");

    final TuesFragment tuesFragment = new TuesFragment();
    Bundle tuesBundle = new Bundle();
    tuesBundle.putInt(DayFragment.KEY_WEEK_NO, weekNo);
    tuesFragment.setArguments(tuesBundle);
    adapter.addFragment(tuesFragment, "Tuesday");

    final WedFragment wedFragment = new WedFragment();
    Bundle wedBundle = new Bundle();
    wedBundle.putInt(DayFragment.KEY_WEEK_NO, weekNo);
    wedFragment.setArguments(wedBundle);
    adapter.addFragment(wedFragment, "Wednesday");

    final ThursFragment thursFragment = new ThursFragment();
    Bundle thursBundle = new Bundle();
    thursBundle.putInt(DayFragment.KEY_WEEK_NO, weekNo);
    thursFragment.setArguments(thursBundle);
    adapter.addFragment(thursFragment, "Thursday");

    final FriFragment friFragment = new FriFragment();
    Bundle friBundle = new Bundle();
    friBundle.putInt(DayFragment.KEY_WEEK_NO, weekNo);
    friFragment.setArguments(friBundle);
    adapter.addFragment(friFragment, "Friday");

    final SatFragment satFragment = new SatFragment();
    Bundle satBundle = new Bundle();
    satBundle.putInt(DayFragment.KEY_WEEK_NO, weekNo);
    satFragment.setArguments(satBundle);
    adapter.addFragment(satFragment, "Saturday");

    viewPager.setAdapter(adapter);
}

static class ViewPagerAdapter extends FragmentStatePagerAdapter {
    private final List<Fragment> mFragmentList = new ArrayList<>();
    private final List<String> mFragmentTitleList = new ArrayList<>();

    ViewPagerAdapter(FragmentManager manager) {
        super(manager);
    }

    @Override
    public Fragment getItem(int position) {
        return mFragmentList.get(position);
    }

    @Override
    public int getCount() {
        return mFragmentList.size();
    }

    void addFragment(Fragment fragment, String title) {
        mFragmentList.add(fragment);
        mFragmentTitleList.add(title);
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return mFragmentTitleList.get(position);
    }
}

片段按以下顺序加载：

滑动时右键

片段 - ＆gt;加载数据
     太阳太阳

mon tues

星期二

结婚

thurs fri

fri sat
     坐着坐着

向左滑动时

片段 - ＆gt;加载数据
     坐着坐着

fri thurs

我们结婚了

星期五
     星期一

mon sun
     太阳太阳

Android ViewPager以错误的顺序加载片段

0 个答案: