【问题标题】:Nested Fragments using support library v4 revision 11使用支持库 v4 修订版 11 的嵌套片段
【发布时间】:2012-11-14 10:36:04
【问题描述】:

今天早上支持库的最新版本 (Android Support Package v4 revision 11) 应该支持嵌套片段。

在我的项目中,我有一个包含 ViewPager 的片段,而这个 ViewPager 包含几个片段。

我正在调用getSupportFragmentManager() 而不是getFragmentManager 来使用支持库的FragmentManager

问题是我仍然遇到如下崩溃:

java.lang.IllegalStateException: Recursive entry to executePendingTransactions
    at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1416)
    at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:461)
    at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141)
    at android.support.v4.view.ViewPager.populate(ViewPager.java:1012)
    at android.support.v4.view.ViewPager.setCurrentItemInternal(ViewPager.java:523)
    at android.support.v4.view.ViewPager.setCurrentItemInternal(ViewPager.java:495)
    at android.support.v4.view.ViewPager.onRestoreInstanceState(ViewPager.java:1221)
    at android.view.View.dispatchRestoreInstanceState(View.java:11910)
    at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2584)
    at android.view.ViewGroup.dispatchRestoreInstanceState(ViewGroup.java:2590)
    at android.view.View.restoreHierarchyState(View.java:11888)
    at android.support.v4.app.Fragment.restoreViewState(Fragment.java:417)
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:933)
    at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)
    at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
    at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444)
    at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:429)
    at android.os.Handler.handleCallback(Handler.java:615)
    at android.os.Handler.dispatchMessage(Handler.java:92)
    at android.os.Looper.loop(Looper.java:137)
    at android.app.ActivityThread.main(ActivityThread.java:4745)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
    at dalvik.system.NativeStart.main(Native Method)

我做错了什么吗?还是支持不支持真正的嵌套片段?

我的交易就这么简单:

getSupportFragmentManager().beginTransaction()
                    .replace(R.id.content, new MyFragment()).commit();

【问题讨论】:

标签: android android-fragments android-viewpager android-support-library android-nested-fragment


【解决方案1】:

尝试使用getChildFragmentManager() 而不是getSupportFragmentManager()。这应该会有所帮助

【讨论】:

  • 什么? getChildFragmentManager() 只能在 Fragment 内部使用,getSupportFragmentManager() 只能在 FragmentActivity 内部使用?这将如何运作?
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