在FragmentPagerAdapter中没有调用getPageTitle

问题描述 投票:2回答:1

我有一个FragmentPagerAdapter处理获取当前片段,跟踪选项卡的数量并设置每个选项卡的选项卡标题。

public class ClothingSectionsPagerAdapter extends FragmentPagerAdapter {

    private String[] mCategories;

    public ClothingSectionsPagerAdapter(FragmentManager fm) {
        super(fm);
    }

    public void setContext(Context context) {
        mCategories = context.getResources().getStringArray(R.array.category);
    }

    @Override
    public Fragment getItem(int position) {
        return ClothingCategoryFragment.newInstance(mCategories[position]);
    }

    @Override
    public int getCount() {
        return mCategories.length;
    }

    @Override
    public CharSequence getPageTitle(int position) {
        Log.d("getPageTitle", mCategories[position]);
        return mCategories[position];
    }
}

在我的活动中,我实现了这个类。

ClothingSectionsPagerAdapter sectionsPagerAdapter =
                new ClothingSectionsPagerAdapter(getSupportFragmentManager());

sectionsPagerAdapter.setContext(this);
mViewPager.setAdapter(sectionsPagerAdapter);
mViewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(mTabLayout));
mTabLayout.addOnTabSelectedListener(new TabLayout.ViewPagerOnTabSelectedListener(mViewPager));
mViewPager.setCurrentItem(startingFragmentPosition);

但是当我运行我的应用程序时。标签存在,但它们是无标题。从未调用过getPageTitle方法。我该如何解决?

java android android-tablayout fragmentpageradapter
1个回答
6
投票

试试这个

mTabLayout.setupWithViewPager(mViewPager);
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