我有一个片段，我试图添加到一个视图。
FragmentManager fragMgr=getSupportFragmentManager();
feed_parser_activity content = (feed_parser_activity)fragMgr
.findFragmentById(R.id.feedContentContainer);
FragmentTransaction xaction=fragMgr.beginTransaction();
if (content == null || content.isRemoving()) {
content=new feed_parser_activity(item.getLink().toString());
xaction
.add(R.id.feedContentContainer, content)
.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN)
.addToBackStack(null)
.commit();
Log.e("Abstract", "DONE");
}
当这段代码执行时，我在调试中得到以下错误。
java.lang.IllegalArgumentException: No view found for id 0x7f080011
for fragment feed_parser_activity{41882f50 #2 id=0x7f080011}
feed_parser_activity是一个片段，在xml中被设置为片段布局。
我使用FragmentActivity来托管持有feed_parser_layout的片段布局。
我上面写的对吗?
在我的例子中，我在回收器视图项中有一个SupportMapFragment(我使用了较低开销的“liteMode”，它使地图看起来是非交互式的，几乎像一个静态图像)。我使用了正确的FragmentManager，一切看起来都很正常……用一个小列表。当项目列表超过屏幕高度时，我在滚动时开始遇到这个问题。
Turned out, it was because I was injecting a dynamic SupportMapFragment inside a view, which was inside another fragment, to get around some issues I was having when trying to declare it statically in my XML. Because of this, the fragment placeholder layout could only be replaced with the actual fragment once the view was attached to the window, i.e. visible on screen. So I had put my code for initialising the SupportMapFragment, doing the Fragment replace, and calling getMapAsync() in the onAttachedToWindow event.
我忘记做的是确保我的代码不会运行两次。例如，在onAttachedToWindow事件中，在尝试创建它的新实例并进行片段替换之前，检查我的动态SupportMapFragment是否仍然为空。当项目离开RecyclerView顶部时，它将从窗口中分离，然后当您回滚到它时重新连接，因此此事件将触发多次。
一旦我添加了空检查，它只发生一次每个RecyclerView项目和问题消失了!TL;博士!
当我试图用onCreateView()中的片段替换视图时，我遇到了这个问题。是这样的:
public class MyProjectListFrag extends Fragment {
private MyProjectListFragment myProjectListFragment;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
FragmentManager mFragmentManager = getFragmentManager();
myProjectListFragment = new MyProjectListFragment();
mFragmentManager
.beginTransaction()
.replace(R.id.container_for_my_pro_list,
myProjectListFragment, "myProjectListFragment")
.commit();
}
它告诉我
11-25 14:06:04.848: E/AndroidRuntime(26040): java.lang.IllegalArgumentException: No view found for id 0x7f05003f (com.example.myays:id/container_for_my_pro_list) for fragment MyProjectListFragment{41692f40 #2 id=0x7f05003f myProjectListFragment}
然后我修复了这个问题，把替换到onActivityCreated()。是这样的:
public class MyProjectListFrag extends Fragment {
private final static String TAG = "lch";
private MyProjectListFragment myProjectListFragment;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater
.inflate(R.layout.frag_my_project_list, container, false);
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onActivityCreated(savedInstanceState);
FragmentManager mFragmentManager = getFragmentManager();
myProjectListFragment = new MyProjectListFragment();
mFragmentManager
.beginTransaction()
.replace(R.id.container_for_my_pro_list,
myProjectListFragment, "myProjectListFragment")
.commit();
}
你必须在onCreateView()中返回一个视图，以便稍后替换它
你可以在fragment liftcycle中的以下函数中对这个视图进行任何操作，比如onActivityCreated()
希望这能有所帮助!
在我的例子中，我在回收器视图项中有一个SupportMapFragment(我使用了较低开销的“liteMode”，它使地图看起来是非交互式的，几乎像一个静态图像)。我使用了正确的FragmentManager，一切看起来都很正常……用一个小列表。当项目列表超过屏幕高度时，我在滚动时开始遇到这个问题。
Turned out, it was because I was injecting a dynamic SupportMapFragment inside a view, which was inside another fragment, to get around some issues I was having when trying to declare it statically in my XML. Because of this, the fragment placeholder layout could only be replaced with the actual fragment once the view was attached to the window, i.e. visible on screen. So I had put my code for initialising the SupportMapFragment, doing the Fragment replace, and calling getMapAsync() in the onAttachedToWindow event.
我忘记做的是确保我的代码不会运行两次。例如，在onAttachedToWindow事件中，在尝试创建它的新实例并进行片段替换之前，检查我的动态SupportMapFragment是否仍然为空。当项目离开RecyclerView顶部时，它将从窗口中分离，然后当您回滚到它时重新连接，因此此事件将触发多次。
一旦我添加了空检查，它只发生一次每个RecyclerView项目和问题消失了!TL;博士!
