因此,我试图找出是否可行。我需要从选定的单个fragments
加载两个activity
到同一tab
的两个容器中。
我发现了这个Android - Multiple fragments in ONE tab
但没人回答这个问题。
因此,这是代码示例以及我尝试过的内容。
听众
surveyTabListener = new TabListener<Load_Fragment>(this,
R.id.header_fragment_container, Load_Fragment.class);
onTabSelected
public void onTabSelected(Tab tab, FragmentTransaction ft) {
if (fragment == null) {
String fragmentName = fragmentClass.getName();
fragment = Fragment.instantiate(activity, fragmentName);
ft.add(fragmentContainer, fragment, fragmentName);
} else
ft.attach(fragment);
}
现在,我尝试像这样在第二个
listener
的第二个inflate
中添加第二个fragment
surveyTabListener2 = new TabListener<Store_Fragment>(this,
R.id.store_fragment_container, Store_Fragment.class);
而且我也试图在
if else
中使用第二个onTabSelected
语句,像这样public void onTabSelected(Tab tab, FragmentTransaction ft) {
if (fragment == null) {
String fragmentName = fragmentClass.getName();
fragment = Fragment.instantiate(activity, fragmentName);
ft.add(fragmentContainer, fragment, fragmentName);
} else
ft.attach(fragment);
if (fragment2 == null) {
String fragmentName2 = fragmentClass2.getName();
fragment2 = Fragment.instantiate(activity, fragmentName2);
ft.add(fragmentContainer2, fragment2, fragmentName2);
} else
ft.attach(fragment2);
}
都不起作用,我要么得到
NPE (null pointer)
要么什么都没有发生,但是我没有得到任何错误。这似乎应该经常进行,但我似乎无法弄清楚。
最佳答案
您需要使用一个空片段作为两个片段的容器,我将发布一些代码向您展示如何对其进行处理。
那是片段容器:
public static class FragmentInsideContainer extends Fragment {
ListView mainListView;
ArrayAdapter<Producer> listAdapter;
TextView inputSearch;
static FragmentInsideContainer containerReference;
String idProd;
public FragmentInsideContainer() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.layoutcontaineprod, container, false);
FragmentInsideContainer.containerReference = this;
FragmentDetailProd fragmentDetailProd = new FragmentDetailProd();
FragmentDetailProd.id = this.idProd;
DummySectionFragment2.currentDetailProdFragment = fragmentDetailProd;
FragmentListWine fragmentListWine = new FragmentListWine();
fragmentListWine.id = this.idProd;
DummySectionFragment2.currentListWineFragment = fragmentListWine;
FragmentInsideContainer.containerReference.getChildFragmentManager().beginTransaction().replace(R.id.containerDetail, fragmentDetailProd).commit();
FragmentInsideContainer.containerReference.getChildFragmentManager().executePendingTransactions();
FragmentInsideContainer.containerReference.getChildFragmentManager().beginTransaction().add(R.id.containerDetail, fragmentListWine).commit();
FragmentInsideContainer.containerReference.getChildFragmentManager().executePendingTransactions();
return rootView;
}
关于android - 一个ActionTab的多个 fragment ,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/16429134/