CODEWITHSUNDEEP
androidandroid-fragmentsnavigationback
Paul Verest
Paul Verest

Reputation: 64012

Android Navigate back inside Activity's fragment

Android provides user navigation using back icon or icon on ActionBar

getActionBar().setDisplayHomeAsUpEnabled(true);

and AndroidManifest.xml has

        <!--
        since 4.0 
        android:parentActivityName=".MainActivity" >
        --> 
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value=".activity.MainActivity" />

Now if my Activity has 3 fragments 1-2-3, how to enable back navigation to come back 3->2->1 ?

When user presses back, how to go to previous fragment, not activity?

Upvotes: 0

Views: 1099

Answers (2)

Amirhossein Mehrvarzi
Amirhossein Mehrvarzi

Reputation: 18974

Note that you may have several accessible fragments inside an application. So you need a robust and infallible solution. I found a complete and explained solution at the page Managing the Fragment Back Stack with the related code in GitHub.

Upvotes: 0

Mahi
Mahi

Reputation: 1784

You can pop the fragment by name. While adding fragments to the back stack, just give them a name.

fragmentTransaction.addToBackStack("fragB");
fragmentTransaction.addToBackStack("fragC");

Then in Fragment_C, pop the back stack using the name ie.. fragB and include POP_BACK_STACK_INCLUSIVE

someButtonInC.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View v) {

        FragmentManager fm = getActivity()
                .getSupportFragmentManager();
        fm.popBackStack ("fragB", FragmentManager.POP_BACK_STACK_INCLUSIVE);
    }
});

Upvotes: 4

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