Fragment 中嵌入fragment切换页面报错

小咪咪 2022-06-07 23:36 250阅读 0赞

为了不弄混淆：暂且把Activity中嵌入的Fragment叫做Fragment1，Fragment2。嵌入在Fragment1中的Fragment叫Fragment11

**遇到问题：**  
打开软件时，显示Fragment1，切换到Fragment2，再切换回Fragment1时报错。

报错信息如下：

W/System.err(20601): android.view.InflateException: Binary XML file line #10: Error inflating class fragment
    W/System.err(20601):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
    W/System.err(20601):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
    W/System.err(20601):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:749)
    W/System.err(20601):    at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
    W/System.err(20601):    at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
    W/System.err(20601):    at com.sdlj.vehiclerepair.fragment.HomeFragment.onCreateView(HomeFragment.java:75)
    W/System.err(20601):    at android.support.v4.app.Fragment.performCreateView(Fragment.java:2239)
    W/System.err(20601):    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1332)
    W/System.err(20601):    at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1574)
    W/System.err(20601):    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1641)
    W/System.err(20601):    at android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java:794)
    W/System.err(20601):    at android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2415)
    W/System.err(20601):    at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2200)
    W/System.err(20601):    at android.support.v4.app.FragmentManagerImpl.optimizeAndExecuteOps(FragmentManager.java:2153)
    W/System.err(20601):    at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2063)
    W/System.err(20601):    at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:725)
    W/System.err(20601):    at android.os.Handler.handleCallback(Handler.java:800)
    W/System.err(20601):    at android.os.Handler.dispatchMessage(Handler.java:100)
    W/System.err(20601):    at android.os.Looper.loop(Looper.java:194)
    W/System.err(20601):    at android.app.ActivityThread.main(ActivityThread.java:5398)
    W/System.err(20601):    at java.lang.reflect.Method.invokeNative(Native Method)
    W/System.err(20601):    at java.lang.reflect.Method.invoke(Method.java:525)
    W/System.err(20601):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:836)
    W/System.err(20601):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:603)
    W/System.err(20601):    at dalvik.system.NativeStart.main(Native Method)
    W/System.err(20601): Caused by: java.lang.IllegalArgumentException: Binary XML file line #10: Duplicate id 0x7f0c0092, tag null, or parent id 0xffffffff with another fragment for com.sdlj.vehiclerepair.view.CycleViewPager
    W/System.err(20601):    at android.app.Activity.onCreateView(Activity.java:4786)
    W/System.err(20601):    at android.support.v4.app.BaseFragmentActivityApi14.onCreateView(BaseFragmentActivityApi14.java:41)
    W/System.err(20601):    at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:75)
    W/System.err(20601):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:680)
    W/System.err(20601):    ... 24 more

**解决方案：**

1.在Fragment1中将View定义为静态，判断是否为空。这种方法虽然能解决问题，但是有内存泄露

private static View view;
    
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        if (view != null) {
            ViewGroup parent = (ViewGroup) view.getParent();
            if (parent != null)
                parent.removeView(view);
        }
        try {
            view = inflater.inflate(R.layout.map, container, false);
        } catch (InflateException e) {
            /* map is already there, just return view as it is */
        }
        return view;
    }

2.在Fragment1的onDestroyView中将Fragment11手动删除，再进入的时候再重新加载。

@Override
    public void onDestroyView() {
        super.onDestroyView();
        Fragment11 f = (Fragment11) getActivity().getFragmentManager()
                                             .findFragmentById(R.id.map);
        if (f != null) 
            getActivity().getFragmentManager().beginTransaction().remove(f).commit();
    }

更详细的解释请见：[https://stackoverflow.com/questions/14083950/duplicate-id-tag-null-or-parent-id-with-another-fragment-for-com-google-androi][https_stackoverflow.com_questions_14083950_duplicate-id-tag-null-or-parent-id-with-another-fragment-for-com-google-androi]

[https_stackoverflow.com_questions_14083950_duplicate-id-tag-null-or-parent-id-with-another-fragment-for-com-google-androi]: https://stackoverflow.com/questions/14083950/duplicate-id-tag-null-or-parent-id-with-another-fragment-for-com-google-androi