在我的应用程序中，我在收到Web服务的响应后显示了一个对话框片段。我从var pat = @"(today|tomorrow|yesterday)((?:\s*[+-]?\s*\d+\s*[dwym])*)"; // Can not change
Match match = Regex.Match(value, pat);
调用此服务。如果应用程序转到后台，它会崩溃并带有异常
onCreate我经历了this blog post。仍然有疑问，我应该从哪里调用Fatal Exception: java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState
at android.support.v4.app.FragmentManagerImpl.checkStateLoss(FragmentManager.java:1493)
at android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1511)
at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:638)
at android.support.v4.app.BackStackRecord.commit(BackStackRecord.java:617)
at android.support.v4.app.DialogFragment.show(DialogFragment.java:139)
at com.activity.MainActivity.showAcceptancePopup(MainActivity.java:1655)
at com.activity.MainActivity.access$1000(MainActivity.java:164)
at com.activity.MainActivity$28.onResponse(MainActivity.java:1568)
at com.activity.MainActivity$28.onResponse(MainActivity.java:1547)
at com.android.volley.toolbox.JsonRequest.deliverResponse(JsonRequest.java:65)
at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:99)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6123)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:757)
，因为它取决于服务器提供的数据。
或者我应该将API调用从dialogFragment.show()移到onCreate？
答案 0 :(得分：1)
此处的解决方案是使用commitAllowingStateLoss();代替commit()进行片段交易，正如documentation所述
与commit（）类似，但允许在活动之后执行提交 状态已保存
希望这有帮助。