How to add an Android fragment to an activity?

android, android-activity, fragment, layout, xml

Solution

i have started fragment from my `MainActivity`. main activity extends `FragmentActivity`. the way i have used is:

FragmentManager manager = getSupportFragmentManager();
FragmentTransaction transaction = manager.beginTransaction();
transaction.replace(R.id.body_frame, new MyFragment()).commit();

in your case, it should look like:

FragmentManager manager = getSupportFragmentManager();
FragmentTransaction transaction = manager.beginTransaction();
transaction.replace(R.id.title_fragment, new TitleFragment()).commit();

remember i have used an `FragmentActivity` to start `Fragment`. i have also used `android-support-v4.jar` to support fragment in lower version OS. without `android-support-v4.jar`, `FragmentManager manager = getSupportFragmentManager();` may be look like : `FragmentManager manager = getFragmentManager();`

Edited:

you should modify your fragment class:

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View view =  inflater.inflate(R.layout.fragment_title, container, false);
    // you can use findViewById() using the above 'view'
      ......................
      ....your code........
       ................
    return view;
}

Problem

I would like to add a fragment to my main activity, so I have this fragment class (TitleFragment.java): ``` package com.myapp.app1; import android.os.Bundle; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; public class TitleFragment extends Fragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // Inflate the layout for this fragment return inflater.inflate(R.layout.fragment_title, container, false); } } ``` Next is the actual content of my fragment, contained in `fragment_title.xml`: ``` <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <ImageView android:id="@+id/logo_iv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/logo_main" android:contentDescription="@string/app_name" android:scaleType="fitStart" android:adjustViewBounds="true" /> </LinearLayout> ``` And inside my `activity_main.xml` I have this snippet amongst the regular content of the activity: ``` <fragment android:name="com.myapp.app1.TitleFragment" android:id="@+id/title_fragment" android:layout_width="0dp" android:layout_height="match_parent" /> ``` Is this method a correct way to create a fragment? My app just crashes and the LogCat seems to indicate it's to do with inflating the fragment view, but I'm not sure. By the way the reason for this fragment is to have the app logo (image and some updateable text) that exists on every page, is this a good method to do something like that? Sorry for my newbie questions.

Original source