Add A Spinner To A Relativelayout Dynamically

I am trying to add a spinner dynamically to a RelativeLayout but I am having problems. This is my code. Copy

Solution 2:

main.java

publicclassMainActivityextendsActionBarActivity {

    @Override
    protectedvoidonCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item);

        adapter.add("1");
        adapter.add("2");
        adapter.add("3");
        adapter.add("4");
        adapter.add("5");

        final Spinner list= (Spinner) findViewById(R.id.spinner1);

        list.setAdapter(adapter);
    }

main.xml

<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.prova.MainActivity" >

    <Spinner
        android:id="@+id/spinner1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="28dp" />

</RelativeLayout>

Check with your parameters.