找不到用于片段的id 0x7f0800c4的视图
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当我试图在滑动选项卡SearchFragment
中替换子片段(ClassroomsTab
)中的父片段(viewPager
)时,我收到此错误。基本上我想要实现的是一个滑动选项卡菜单,每个子片段中有多个按钮,用于关闭滑动选项卡菜单并打开另一个现有片段。 SearchFragment
处于导航抽屉活动中,按钮的目标片段也是如此。
从我所读到的,这个问题的解决方案是在这行代码中替换getChildFragmentManager()
:viewPager.setAdapter(new MyAdapter(getChildFragmentManager()));
与getActivity().getSupportFragmentManager()
或getFragmentManager()
。这解决了应用程序崩溃的问题,但是当我通过新片段中的导航抽屉单击搜索选项卡时,大多数带有按钮的滑动选项卡子片段都不显示。
谢谢您的帮助 :)
SearchFragment
OnCreateView
代码:
public TabLayout tabLayout;
public ViewPager viewPager;
public static int int_items = 5;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
//this inflates the tab layout file.
View view = inflater.inflate(R.layout.search_layout,null);
viewPager = (ViewPager) view.findViewById(R.id.viewpager);
tabLayout = (TabLayout) view.findViewById(R.id.tabs);
viewPager.setAdapter(new MyAdapter(getChildFragmentManager()));
// this puts the titles on the top
tabLayout.post(new Runnable() {
@Override
public void run() {
tabLayout.setupWithViewPager(viewPager);
}
});
//this preloads the other tabs. currently only have it set to one for testing
viewPager.setOffscreenPageLimit(1);
return view;
}
ClassroomsTab
代码(我正在测试时只有一个按钮):
注意:content_frame
是导航活动的framelayout
public class ClassroomsTab extends Fragment {
View myView;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
myView = inflater.inflate(R.layout.classrooms, container, false);
defineButtons();
return myView;
}
public void defineButtons() {
Button CR1C1 = (Button)myView.findViewById(R.id.CR1C1);
CR1C1.setOnClickListener(buttonClickListener);
}
private View.OnClickListener buttonClickListener = new View.OnClickListener() {
@Override
public void onClick(View view) {
FragmentManager fragmentmanager = getFragmentManager();
switch (view.getId()) {
case R.id.CR1C1:
fragmentmanager.beginTransaction()
.replace(R.id.content_frame
,new MapFragment())
.commit();
break;
}
}
};
完全错误
09-08 15:52:13.154 12220-12220 / com.example.jeremy.app E / androidRuntime:FATAL EXCEPTION:main进程:com.example.jeremy.app,PID:12220 java.lang.IllegalArgumentException:找不到视图id为0x7f0800c4(com.example.jeremy.app:id/content_frame),用于android.support的android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1417)中的片段MapFragment {c7d968f#2 id = 0x7f0800c4}。位于android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1822)的vs.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1754),位于android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java: 797)在Android.support.v4.app.FragmentManager上,在android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2378)的android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2591) .removeRedundantOperationsAndExecute(FragmentManager.java:2333)在android.support.v4.app.FragmentManagerImpl.execPendingActions(F ragmentManager.java:2240)在android.os.Handler.dispatchMessage上的android.os.Handler.handleCallback(Handler.java:790)的android.support.v4.app.FragmentManagerImpl $ 1.run(FragmentManager.java:703)处( Handler.java:99)在android.app.Looper.loop(Looper.java:164)的android.app.ActivityThread.main(ActivityThread.java:6494)at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit $ MethodAndArgsCaller.run(RuntimeInit.java:438)at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
当您在多个事务中更改布局时,通常会发生这种情况。同样的事发生在我身上,我通过清除它背后的堆栈解决了它。但你必须使用单个FragmentManager
for你的所有交易。在完成交易后放置此代码
private void clearStack() {
if (fragmentManager.getBackStackEntryCount() > 0) {
for (int i = 0; i < fragmentManager.getBackStackEntryCount(); i++) {
fragmentManager.popBackStack();
}
}
if (fragmentManager.getFragments().size() > 0) {
for (int i = 0; i < fragmentManager.getFragments().size(); i++) {
Fragment mFragment = fragmentManager.getFragments().get(i);
if (mFragment != null) {
fragmentManager.beginTransaction().remove(mFragment).commit();
}
}
}
}
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