blocks|key|1375959|text|我用这种方法解决了这个问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1375960|++++@Override
public+void+onActivityResult()+{+//inside+my+fragment+that+started+activity+for+result
++++++++model.navigateToResults+=+true;+//set+flag,+that+navigation+should+be+performed
}|code-block|syntax|javascript|1375961|然后|1375962|++++@Override
public+void+onResume()+{+//inside+fragment+that+started+activity+for+result
++++super.onResume();

++++if(model.navigateToResults){
++++++++model.navigateToResults+=+false;
++++++++navController.navigate(R.id.action_startFragment_to_resultsFragment);
++++}
}|1375963|不确定，如果这不是一个可怕的黑客，但它对我有效。此时将恢复FramgentManager状态(onResume)，导航不会出现问题。|1375964|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I've solved this problem this way:

<pre><code> @Override
public void onActivityResult() { //inside my fragment that started activity for result
 model.navigateToResults = true; //set flag, that navigation should be performed
}
</code></pre>

and then

<pre><code> @Override
public void onResume() { //inside fragment that started activity for result
 super.onResume();

 if(model.navigateToResults){
 model.navigateToResults = false;
 navController.navigate(R.id.action_startFragment_to_resultsFragment);
 }
}
</code></pre>

not sure, if this is not a terrible hack, but it worked for me. FramgentManager state is restored at this point (onResume) and no problems with navigation occur.

blocks|key|77681|text|最后，在导航到恢复状态之前，我只需简单地调用super.onPostResume()就可以解决这个问题。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|77682|entityMap^0|M|K|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

Finally, I fix the issue by simple calling <code>super.onPostResume()</code> right before navigating to restore state.

blocks|key|530790|text|您必须始终在活动的super.onActivityResult()中调用onActivityResult。这就是：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|530791|解锁片段，以便它们可以执行碎片事务(即，避免state+is+already+saved错误)|ordered-list-item|530792|将onActivityResult回调分派给调用startActivityForResult的片段。|530793|entityMap^0|9|O|10|G|0|M|M|0|1|G|O|M|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@$9|S|A|T|B|C]]|D|@]|E|$]]|$1|I|3|J|5|H|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|L|$]]

You must always call <code>super.onActivityResult()</code> in your Activity's <code>onActivityResult</code>. That is what:

<ol>
<li>Unlocks Fragments so they can do fragment transactions (i.e., avoid the <code>state is already saved</code> errors)</li>
<li>Dispatches <code>onActivityResult</code> callbacks to Fragments that called <code>startActivityForResult</code>.</li>
</ol>

blocks|key|77709|text|我认为上述解决方案应该有效。但我的问题不一样。有一个第三方sdk正在使用我提供的上下文启动它的活动，它将结果交付给一个我必须实现的侦听器。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|77710|因此，我无法选择使用onActivityResult：|offset|length|style|CODE|77711|我用下面的黑客来解决这个问题：|77712|+++private+var+runnable:+Runnable?+=+null+//+Runnable+object+to+contain+the+navigation+code

++++override+fun+onResume()+{
++++++++super.onResume()

++++++++//+run+any+task+waiting+for+this+fragment+to+be+resumed
++++++++runnable?.run()
++++}


++++override+fun+responseListener(response:+Response)+{++++//+Function+in+which+you+are+getting+response

++++++++if+(!isResumed)+{++++
++++++++++++//+add+navigation+to+runnable+as+fragment+is+not+resumed
++++++++++++runnable+=+Runnable+{
++++++++++++++++navController.navigate(R.id.destination_to_navigate)
++++++++++++}
++++++++}+else+{
++++++++++++//+navigate+normally+as+fragment+is+already+resumed
++++++++++++navController.navigate(R.id.destination_to_navigate)
++++++++}
++++}|code-block|syntax|javascript|77713|如果有更好的解决办法，请告诉我。目前，我发现这非常简单且易于实现:)|77714|entityMap^0|0|A|G|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@$D|U|E|V|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|W|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|X|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

I believe above solutions should work. But my problem was different. There was a third party sdk which was launching its activity using context provided by me and it was delivering the result on a listener which I had to implement.

So there was no option for me to work with <code>onActivityResult</code> :(

I used below hack to solve the issue:

<pre><code> private var runnable: Runnable? = null // Runnable object to contain the navigation code

 override fun onResume() {
 super.onResume()

 // run any task waiting for this fragment to be resumed
 runnable?.run()
 }


 override fun responseListener(response: Response) { // Function in which you are getting response

 if (!isResumed) { 
 // add navigation to runnable as fragment is not resumed
 runnable = Runnable {
 navController.navigate(R.id.destination_to_navigate)
 }
 } else {
 // navigate normally as fragment is already resumed
 navController.navigate(R.id.destination_to_navigate)
 }
 }


</code></pre>

Let me know if there is any better solution for this. Currently I found this very simple and easy to implement :)

blocks|key|530835|text|在导航之前调用super.onPostResume()+.它正在工作|type|unstyled|depth|inlineStyleRanges|entityRanges|data|530836|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

call super.onPostResume() before navigation....It's working

I'm using <a href="https://developer.android.com/topic/libraries/architecture/navigation/" rel="noreferrer">navigation</a> in <code>MainActivity</code>, then I start <code>SecondActivity</code> (for result). After finish of <code>SecondActivity</code> I would like to continue with navigation in <code>MainActivity</code>, but <code>FragmentManager</code> has saved his state already.

On <code>Navigation.findNavController(view).navigate(R.id.action_next, bundle)</code> I receive log message:

<pre><code>Ignoring navigate() call: FragmentManager has already saved its state
</code></pre>

How I can continue in navigation?

Ignoring navigate() call: FragmentManager has already saved its state

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我在MainActivity中使用MainActivity，然后启动SecondActivity (获取结果)。在完成SecondActivity之后，我想继续使用MainActivity中的导航，但是FragmentManager已经保存了他的状态。在Navigation.findNavController(view...

问忽略导航()调用: FragmentManager已经保存了它的状态
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