为什么 Android O 会因“不属于此 FragmentManager！"而失败? [英] Why is Android O failing with "does not belong to this FragmentManager!"

问题描述

我已将我的应用程序迁移到 Android Studio 3 中的 Android O

I have migrated my application to Android O in Android Studio 3

在 Android O 模拟器上运行我所有的 dialogFragment 现在都失败了:-

Running on an Android O emulator all my dialogFragments now fail with :-

java.lang.IllegalStateException: Fragment MyDialogFragment{43ccf50 #2 MyDialogFragment} declared target fragment SettingsFragment{ceed549 #0 id=0x7f0f0142 android:switcher:2131689794:0} that does not belong to this FragmentManager!
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1316)
at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1624)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1689)
at android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java:794)
at android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2470)
at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2260)
at android.support.v4.app.FragmentManagerImpl.optimizeAndExecuteOps(FragmentManager.java:2213)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2122)
at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:746)
at android.os.Handler.handleCallback(Handler.java:769)
at android.os.Handler.dispatchMessage(Handler.java:98)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6535)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)

我没有做任何代码更改.

I have made no code changes whatsoever.

Android O 中有哪些变化导致以前可以运行的 DialogFragments 现在无法显示?

What has changed in Android O that previously working DialogFragments now fail display?

Android Studio 3.0 Canary 1
Build #AI-171.4010489, built on May 15, 2017
JRE: 1.8.0_112-release-b736 x86_64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Mac OS X 10.11.6

    compileSdkVersion 'android-O'
    buildToolsVersion "26.0.0-rc2"

   AndroidManifest.xml
    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 'O'
        }

compile 'com.android.support:appcompat-v7:26.0.0-beta1'
compile 'com.android.support:cardview-v7:26.0.0-beta1'
compile 'com.android.support:design:26.0.0-beta1'
    compile 'com.android.support:percent:26.0.0-beta1'

  dependencies {
        classpath 'com.android.tools.build:gradle:3.0.0-alpha1'

    }

推荐答案

我遇到了同样的问题，绝对是 android 错误.当您使用另一个片段作为目标显示来自另一个片段的片段时，就会发生这种情况.作为解决方法，您可以使用:

I had the same problem, definitely an android bug. It happens when you are showing a fragment from another fragment using it as target. As workaround you can use:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
    getActivity().getFragmentManager().beginTransaction().add(dialogFrag, "dialog").commit();
else
    getChildFragmentManager().beginTransaction().add(dialogFrag,"dialog").commit();

这篇关于为什么 Android O 会因“不属于此 FragmentManager！"而失败?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！