小编Ant*_*ine的帖子

我的问题很简单,我将4个FrameLayout添加到我的XML中,并在这些容器中按代码添加4个MapFragment.

像这样 :

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:map="http://schemas.android.com/apk/res-auto"
  android:id="@+id/map_container"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical">
  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_weight="0.5"
    android:orientation="horizontal">
    <FrameLayout
      android:id="@+id/map1_container"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:layout_weight="0.5""/>
    <FrameLayout
      android:id="@+id/map2_container"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:layout_weight="0.5"/>
  </LinearLayout>
  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_weight="0.5"
    android:orientation="horizontal">
    <fragment
      android:id="@+id/map3_container"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:layout_weight="0.5"/>
    <fragment
      android:id="@+id/map4_container"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:layout_weight="0.5""/>
  </LinearLayout>

在我的活动中

public class MultiGoogleMapActivity extends FragmentActivity {

    private GoogleMap mMap;
    private GoogleMap mMapUp;
    private GoogleMap mMapMiddle;
    private GoogleMap mMapLow;

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

mMap1Fragment = SupportMapFragment.newInstance();
    FragmentTransaction fragmentTransaction = getSupportFragmentManager()
                        .beginTransaction();
                fragmentTransaction.add(R.id.map1_container, mMap1Fragment, MAP_FRAGMENT_TAG); …