How to connect a layout view with an activity

Question

In my main view, I have:

public class PlayersActivity extends Activity {
    ViewFlipper flipper;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.playercontainer);
        flipper = (ViewFlipper) findViewById(R.id.flipper);
    }
}

with this view:

<ViewFlipper xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/flipper"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <include android:id="@+id/first"  layout="@layout/first" />
    <include android:id="@+id/second"  layout="@layout/playerdetailsview" />
</ViewFlipper>

It displays the first view correctly but I want it to be connected to a java class so I created an FirstActivity class where I can control all my components in the first view but how do I attach the first.xml layout with the FirstActivity java class ?

Answer 1

Say your new xml file is foo.xml:

1. Put foo.xml file in your res/layout directory.
2. In your new class use setContentView(R.layout.foo);
3. Specify your new class in your manifest file.

See also the topic on declaring layout.

Answer 2

1) Create an xml file (say foo.xml).
2) Put foo.xml in res/layout directory.
3) Edit foo.xml and put some android layout code and save it. e.g.,

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="fill_parent" 
              android:layout_height="fill_parent" 
              android:orientation="vertical" >
    <ViewFlipper android:id="@+id/viewFlipper1" 
                 android:layout_width="match_parent" 
                 android:layout_height="wrap_content"></ViewFlipper>
</LinearLayout>

4) In your new activity class put

setContentView(R.layout.foo);

For creating an activity see this answer

I guess the problem with your xml file is that you had not specified any layout for the activity.

Answer 3

Not so hard to link 2 layouts just do :

@Override
    public void onClick(View args0) {
    setContentView(R.layout.aardelayout);
}

Answer 4

Change the name from FirstActivity to firstactivity. Layout does not accept caps.