Should a fragment have a different class to the activity it is used in?

Question

I intend to build a simple activity, with a list and a more detailed viewing panel. The list is populated with data from reading from a file. My question is whether the code for the two fragments should be in one activity, or in two separate activities and then called by another activity?? Thanks for the help!!!

Answer 1

You should use one activity. To place both frags in screen use smth like this

<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <fragment
        android:id="@+id/frag1"
        android:name="your.pckg.frag1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"/>        
    <fragment
        android:id="@+id/frag2"
        android:name="your.pckg.frag2"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="2"/>
</LinearLayout>

Both frags are separated classes (in example case it is your.pckg.frag1 class and your.pckg.frag2 class)