[英]blank viewpager when back to that activity
i have this code: 我有此代码:
...
ArrayList<View> views = new ArrayList<>();
ArrayList<String> titulos = new ArrayList<>();
views.add(viewPlan);
views.add(viewPerfil);
titulos.add("Planes");
titulos.add("Perfil");
ViewPager oPager = (ViewPager) getView().findViewById(R.id.pager);
oPager.setOffscreenPageLimit(3);
oPager.setAdapter(new FormAdapter(((FragmentActivity)getActivity()).getSupportFragmentManager(), views, titulos));
and this adapter: 和这个适配器:
class FormAdapter extends FragmentStatePagerAdapter {
List<SolapaSocioFragment> solapas;
ArrayList<View> views = new ArrayList<>();
ArrayList<String> titulos = new ArrayList<>();
public FormAdapter(FragmentManager fm, ArrayList<View> views, ArrayList<String> titulos) {
super(fm);
solapas = new ArrayList<SolapaSocioFragment>();
this.views = views;
this.titulos = titulos;
for (int i = 0; i < views.size(); i++ ){
solapas.add(new SolapaSocioFragment().newInstance(views.get(i)));
}
}
@Override
public android.support.v4.app.Fragment getItem(int position) {
return new SolapaSocioFragment().newInstance(views.get(position));
}
@Override
public int getCount() {
return views.size();
}
@Override
public CharSequence getPageTitle(int position) {
return titulos.get(position);
}
}
the view pager show the views but when i go to othe activity and press the back button the views are blank, i saw on google that the problem is that i must use getChildFragmentManager() instead of (FragmentActivity)getActivity()).getSupportFragmentManager() but the childFragmentManager is incompatible with the constructor of FragmentStatePagerAdapter and FragmentPagerAdapter.What would be the problem? 视图分页器显示视图,但是当我去其他活动并按返回按钮时视图是空白的,我在google上看到问题是我必须使用getChildFragmentManager()而不是(FragmentActivity)getActivity())。getSupportFragmentManager( ),但是childFragmentManager与FragmentStatePagerAdapter和FragmentPagerAdapter的构造函数不兼容,这是什么问题? Thanks
谢谢
问题是我在后台使用了replace
而不是add
。
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