Google maps v2 on android devices with minSDK below 11

Question

i have problem with this line when I create project which use Google maps API v2.

GoogleMap map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map))

Answer 1

    Fragment fragment = getSupportFragmentManager().findFragmentById(
            R.id.map);
    SupportMapFragment mapFragment = (SupportMapFragment) fragment;
    GoogleMap mMap = mapFragment.getMap();

Answer 2

Use SupportMapFragment from a FragmentActivity, instead of MapFragment from an Activity. To use fragments on devices older than API Level 11, you need to use the Android Support package's backport of fragments (where FragmentActivity comes from).

Answer 3

http://android-er.blogspot.de/2012/12/using-supportmapfragment.html - small example

<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"
    tools:context=".MainActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:text="@string/hello_world" />
    <fragment
        android:id="@+id/map"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        class="com.google.android.gms.maps.SupportMapFragment"/>

</RelativeLayout>

AND:

package de.meinprospekt.android.ui;

import java.text.SimpleDateFormat;

public class MainActivity extends FragmentActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

}