Save Fragment state?

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Save Fragment state?

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#1 by (1 votes)

1

In a simple app I have Fragments and need to save their status ,

So when the user returns from one fragment to another,

is there still text typed, number chosen, check box marked, etc ... suggestions?

android android-fragment

asked by anonymous 28.06.2016 / 10:49

1 answer

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score 1 · Answer 1

In fragment, saves state overriding onSaveInstanceState() and saves in onActivityCreated() :

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    ...
    if (savedInstanceState != null) {
        //Restore the fragment's state here
    }
}

...
@Override
public void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);

    //Save the fragment's state here
}

In the activity, you have to save the instance fragment in onSaveInstanceState() and saves it in the onCreate() .

public void onCreate(Bundle savedInstanceState) {
    ...
    if (savedInstanceState != null) {
        //Restore the fragment's instance
        mContent = getSupportFragmentManager().getFragment(savedInstanceState, "mContent");
        ...
    }
    ...
}

@Override
protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);

    //Save the fragment's instance
    getSupportFragmentManager().putFragment(outState, "mContent", mContent);
}

I hope this helps.

I wanted to comment, because respsta was already given in English OS, but as I could not have written here and traduzi.Espero this help.

link

The code is not in code, if anyone knows why, thank you!