How do I get rid of the wrong 2nd argument type in Android studio?

Question

1.00/5 (1 vote)

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I don't understand what's wrong here

Java

fragment.setArguments(args);
FragmentManager frgManager = getFragmentManager();
frgManager.beginTransaction().replace(R.id.content_frame,fragment).commit();

At the beginning of MainActivity.java I

Java

import android.app.FragmentManager;

Android studio throws an error stating that I have the wrong 2ns argument type.
It says that the 2nd argument requires a type of android.app.Fragment which makes little sense to me since I imported android.app.FragmentManager in the beginning.

Honestly I don't know what difference between android.support.v4.app.Fragment and android.app.Fragment is so I don't know where to begin.

I'm following this tutorial.

I've searched around for a solution but no one appears to have a similar problem.

Update:
Android development is a new experience for me and I'm still trying to understand how the everything fits in together and it's quite overwhelming, so am sorry if I've disappointed some people.

Posted 13-May-15 18:40pm

pyler

Updated 13-May-15 19:28pm

v5

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Sergey Alexandrovich Kryukov 14-May-15 1:02am

It's hard to help you. Apparently, you cannot see the difference between type and namespace, between two different types, and so on. It sounds like you need to learn programming pretty much from the very beginning.
—SA

pyler 14-May-15 1:22am

Not to worry, I solved the problem and it does sound like I need to learn programming from the very beginning but I can assure you that I don't. I know what I know and what I need to know.

Sergey Alexandrovich Kryukov 14-May-15 10:27am

Very good. I'm glad if I was wrong; you have just been a bit confused.
—SA

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pyler · Accepted Answer · 2015-05-13T19:19:00

Solved the problem by importing

FragmentActivity

and having my main function extend it

import android.support.v4.app.FragmentActivity;
.
.
.
public class MainActivity extends FragmentActivity

I think android studio was extending the default Activity instead of the FragmentActivity.

I also changed

FragmentManager frgManager = getFragmentManager();

to

FragmentManager frgManager = getSupportFragmentManager();