问题getSupportFragmentManager（）。putFragment [英] Issue with getSupportFragmentManager().putFragment

问题描述

我开发一个Android应用程序，我想救我的片段是在载体片段。当我在onSaveIstanceState使用putFragment系统抛出IllegalStateException异常

I am developing an android application and I want to save my fragment that is in the vector fragments. When I use putFragment in onSaveIstanceState the system throw IllegalStateException

@Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        // Salviamo lo stato 


        //salvo all fragment
        for(int i=0;i<fragments.size();i++)
            getSupportFragmentManager().putFragment(outState, Integer.toString(i), fragments.get(i));

    }

这是logcat的：

09-13 10:38:10.230: E/AndroidRuntime(24089): java.lang.IllegalStateException: Fragment GenericPageFragment{417716e0} is not currently in the FragmentManager
09-13 10:38:10.230: E/AndroidRuntime(24089):    at android.support.v4.app.FragmentManagerImpl.putFragment(FragmentManager.java:516)
09-13 10:38:10.230: E/AndroidRuntime(24089):    at it.intects.dashboard.droid.BaseActivity.onSaveInstanceState(BaseActivity.java:180)
09-13 10:38:10.230: E/AndroidRuntime(24089):    at android.app.Activity.performSaveInstanceState(Activity.java:1113)
09-13 10:38:10.230: E/AndroidRuntime(24089):    at android.app.Instrumentation.callActivityOnSaveInstanceState(Instrumentation.java:1188)

为什么呢？我该如何解决这个问题？

Why ? How can I resolve this error ?

推荐答案

您不能做任何片段交易savedInstanceState（）被调用后。

You can't do any fragment transactions after savedInstanceState() was called.

该活动将恢复最后附加片段活动时的回报。

The activity will restore the last attached fragment when the activity returns.

如果你想要做的碎片任何操作使用方法：

And if you want to do any actions with fragments use:

getSupportedFragmentManager().beginTransaction().add(R.layout.container,new MyFragment(), "fragment_tag").commit();

有关片段一个非常好的教程

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