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我有一個選項卡布局和一個視圖尋呼機。選項卡布局總是以單個選項卡開始,但是,我希望能夠通過按鈕動態添加和刪除新選項卡。Android添加和刪除片段到FragmentPagerAdapter
在的onCreate:
mViewPager = (ViewPager) view.findViewById(R.id.viewpager);
mToolbar = (Toolbar) view.findViewById(R.id.toolbar);
mTabLayout = (TabLayout) view.findViewById(R.id.tabs);
setupViewPager(mViewPager);
mTabLayout.setupWithViewPager(mViewPager);
的setupViewPager方法:
private void setupViewPager(ViewPager viewPager) {
mAdapter = new ViewPagerAdapter(getActivity().getSupportFragmentManager());
mAdapter.addFragment(new CycleFragment(), "TEST TAB");
viewPager.setAdapter(mAdapter);
}
的viewPageAdapter類:
class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
@Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
是否有可能動態地添加和刪除片段向/從viewpager ?我通過這種方法瞭解到,添加新的片段相對比較簡單。但是,我將如何刪除碎片?