Отображение карты в фрагменте

Question

В моем приложении я хочу показать карту google в фрагменте. Мой класс активности приведен ниже.

public class MainActivity extends Activity { 
private DrawerLayout mDrawerLayout; 
private ListView mDrawerList; 
private ActionBarDrawerToggle mDrawerToggle; 

private CharSequence mDrawerTitle; 
private CharSequence mTitle; 
private String[] mPlanetTitles; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    mTitle = mDrawerTitle = getTitle(); 
    mPlanetTitles = getResources().getStringArray(R.array.planets_array); 
    mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); 
    mDrawerList = (ListView) findViewById(R.id.left_drawer); 
    mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, 
      GravityCompat.START); 

    mDrawerList.setAdapter(new ArrayAdapter<String>(this, 
      R.layout.drawer_list_item, mPlanetTitles)); 
    mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); 
    getActionBar().setDisplayHomeAsUpEnabled(true); 
    getActionBar().setHomeButtonEnabled(true); 
    mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, 
      R.drawable.ic_launcher, R.string.app_name, 
      R.string.action_settings) { 
     public void onDrawerClosed(View view) { 
      getActionBar().setTitle(mTitle); 
      invalidateOptionsMenu(); 
     } 

     public void onDrawerOpened(View drawerView) { 
      getActionBar().setTitle(mDrawerTitle); 
      invalidateOptionsMenu(); 
     } 
    }; 
    mDrawerLayout.setDrawerListener(mDrawerToggle); 

    if (savedInstanceState == null) { 
     selectItem(0); 
    } 
} 

@Override 
public boolean onCreateOptionsMenu(Menu menu) { 
    MenuInflater inflater = getMenuInflater(); 
    inflater.inflate(R.menu.main, menu); 
    return super.onCreateOptionsMenu(menu); 
} 

@Override 
public boolean onPrepareOptionsMenu(Menu menu) { 
    boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList); 
    menu.findItem(R.id.action_websearch).setVisible(!drawerOpen); 
    return super.onPrepareOptionsMenu(menu); 
} 

@Override 
public boolean onOptionsItemSelected(MenuItem item) { 
    if (mDrawerToggle.onOptionsItemSelected(item)) { 
     return true; 
    } 
    switch (item.getItemId()) { 
    case R.id.action_websearch: 
     Intent intent = new Intent(Intent.ACTION_WEB_SEARCH); 
     intent.putExtra(SearchManager.QUERY, getActionBar().getTitle()); 
     if (intent.resolveActivity(getPackageManager()) != null) { 
      startActivity(intent); 
     } else { 
      Toast.makeText(this, "Nothing", Toast.LENGTH_LONG).show(); 
     } 
     return true; 
    default: 
     return super.onOptionsItemSelected(item); 
    } 
} 

private class DrawerItemClickListener implements 
     ListView.OnItemClickListener { 
    @Override 
    public void onItemClick(AdapterView<?> parent, View view, int position, 
      long id) { 
     selectItem(position); 
    } 
} 

private void selectItem(int position) { 
    onItemSelected(mPlanetTitles[position]); 
    mDrawerList.setItemChecked(position, true); 
    setTitle(mPlanetTitles[position]); 
    mDrawerLayout.closeDrawer(mDrawerList); 
} 

@Override 
public void setTitle(CharSequence title) { 
    mTitle = title; 
    getActionBar().setTitle(mTitle); 
} 

/** 
* When using the ActionBarDrawerToggle, you must call it during 
* onPostCreate() and onConfigurationChanged()... 
*/ 

@Override 
protected void onPostCreate(Bundle savedInstanceState) { 
    super.onPostCreate(savedInstanceState); 
    mDrawerToggle.syncState(); 
} 

@Override 
public void onConfigurationChanged(Configuration newConfig) { 
    super.onConfigurationChanged(newConfig); 
    mDrawerToggle.onConfigurationChanged(newConfig); 
} 

public void onItemSelected(String link) { 
    DetailFragment fragment = (DetailFragment) getFragmentManager() 
      .findFragmentById(R.id.detailFragment); 

    fragment.setText(link); 

} 

}

Как показано в коде в деятельности я использую DrawyerLayout внутри, что есть четыре пункта. Когда пользователь нажимает Item. Я показываю фрагмент, где внутри хранится MapFragment.

См. Основной файл макета Xml.

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:id="@+id/drawer_layout" 
android:layout_width="match_parent" 
android:layout_height="match_parent" > 

<FrameLayout 
    android:id="@+id/content_frame" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" /> 

<fragment 
    android:id="@+id/detailFragment" 
    android:layout_width="0dp" 
    android:layout_height="match_parent" 
    android:layout_weight="2" 
    class="com.example.mynavigation.DetailFragment" 
    android:visibility="invisible" > 
</fragment> 

<ListView 
    android:id="@+id/left_drawer" 
    android:layout_width="240dp" 
    android:layout_height="match_parent" 
    android:layout_gravity="start" 
    android:background="#111" 
    android:choiceMode="singleChoice" 
    android:divider="@android:color/transparent" 
    android:dividerHeight="0dp" /> 

</android.support.v4.widget.DrawerLayout> 

My Fragment Class.

public class DetailFragment extends Fragment { 

GoogleMap map ; 
@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
     Bundle savedInstanceState) { 
    System.out.println("kkkkkkkkkkkk"); 
    View view = inflater.inflate(R.layout.fragment_rssitem_detail, 

      container, true); 
    return view; 
} 

public void setText(String item) { 
    System.out.println("set Tewxt"); 
    TextView view = (TextView) getView().findViewById(R.id.detailsText); 

    view.setText(item); 

} 
} 

И файл fragment_rssitem_detail.xml

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

<TextView 
    android:id="@+id/detailsText" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_gravity="center_horizontal|center_vertical" 
    android:layout_marginTop="20dip" 
    android:text="Default Text" 
    android:textAppearance="?android:attr/textAppearanceLarge" 
    android:textSize="30dip" /> 

<FrameLayout 
    android:id="@+id/map_frame" 
    android:layout_width="fill_parent" 
    android:layout_height="match_parent" > 

    <fragment 
      android:id="@+id/map" 
      class="com.google.android.gms.maps.SupportMapFragment" 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:layout_margin="8dp" /> 
</FrameLayout> 

<!-- <ListView 
    android:id="@+id/list_fragment" 
    android:name="com.myapp.ListFragment" 
    android:layout_width="wrap_content" 
    android:layout_height="fill_parent" /> --> 

</LinearLayout> 

Answer 1

Положите только LinearLayout туда, где вы хотите поместить карту в вашем XML и нажать карту программно, как показано ниже:

private SupportMapFragment mapFragment; 

mapFragment = new SupportMapFragment(); 
addFragment(lnrMap.getId(), mapFragment); //lnrMap is your LinearLayout from xml. 
googleMap = mapFragment.getExtendedMap(); 

AddFragment Method (). Поместите этот метод в свой класс DetailFragment:

public void addFragment(int layoutId, Fragment fragment) { 
     FragmentManager fm = getChildFragmentManager(); 
     FragmentTransaction ft = fm.beginTransaction(); 
     ft.replace(layoutId, fragment); 
     ft.commit(); 
    }