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?
我有同样的问题，当做片段事务，而活动创建。
核心问题是什么尼克已经指出-视图树还没有膨胀。但是他的解决方案并没有起作用——在onResume, onPostCreate等中出现了同样的异常。
解决方案是在容器片段中添加回调，以便在它准备好时发出信号:
public class MyContainerFragment extends Fragment {
public static interface Callbacks {
void onMyContainerAttached();
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
Log.d(TAG, "--- onAttach");
((Callbacks) activity).onMyContainerAttached();
}
//... rest of code
}
然后在活动中:
public class MainActivity extends Activity
implements MyContainerFragment.Callbacks
{
@Override
public void onMyContainerAttached() {
getFragmentManager()
.beginTransaction()
.replace(R.id.containerFrame, new MyFragment())
.commit();
}
//...
}
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!
这个页面似乎是发布关于片段IllegalArgumentException的建议的一个很好的中心位置。还有一件事你可以试试。这是最后对我有用的方法:
我忘了我有一个单独的横向布局文件。在我添加了我的FrameLayout容器之后，这个片段也工作了。
On a separate note, if you have already tried everything else suggested on this page (and the entire Internet, too) and have been pulling out your hair for hours, consider just dumping these annoying fragments and going back to a good old standard layout. (That's actually what I was in the process of doing when I finally discovered my problem.) You can still use the container concept. However, instead of filling it with a fragment, you can use the xml include tag to fill it with the same layout that you would have used in your fragment. You could do something like this in your main layout:
<FrameLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<include layout="@layout/former_fragment_layout" />
</FrameLayout>
其中former_fragment_layout是您试图在片段中使用的XML布局文件的名称。有关更多信息，请参见使用include重用布局。
