如何从谷歌地图V2的观点得到片段 [英] How to get fragment from the view for Google Map v2

问题描述

我有使用谷歌地图API v1密钥，这是工作的罚款我的Andr​​oid应用程序。现在，我需要给我的code到我的教授，并让他从头开始一个新的台式机上的工作演示。因此，这意味着，现在我不能使用谷歌地图API v1密钥了，所以这是我需要做的code了一些变化，我对<$的原因C $ C>谷歌地图API V1 >键，以便它可以与。

I have my android application which was using Google Map API v1 key and it was working fine. Now I need to give my code to my professor and show him the working demo from scratch on a new desktop machine. So that means, now I cannot use Google Map API v1 key anymore so that is the reason I needed to make some changes in the code that I have for Google Map API key v1 so that it can be used with Google Map API v2 key.

我试图显示在 Android的屏幕的上半部分和在我的下半部分，我试图显示列表视图谷歌地图。

下面是code这与谷歌地图API v1密钥正常工作，现在我需要在以下code的变化，使其工作与谷歌地图API V2键这意味着我需要显示谷歌地图在Android屏幕的上半部分。

Below is the code which works fine with Google Map API v1 key and now I need to make changes in the below code to make it work with Google Map API v2 key meaning I need to show Google Map on top half of the android screen.

private GoogleMap map;

@Override
public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

Bundle bundle = getIntent().getExtras();
user_id = bundle.getString("USERID");

LayoutInflater inflater = LayoutInflater.from(this);
scrollView = (MyHorizontalScrollView) inflater.inflate(R.layout.horz_scroll_with_list_menu, null);

setContentView(scrollView);

menu = inflater.inflate(R.layout.horz_scroll_menu, null);
app = inflater.inflate(R.layout.horz_scroll_app, null);

ViewGroup tabBar = (ViewGroup) app.findViewById(R.id.tabBar);

initViewMembers(app); // I need to modify something in this method only

locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

initMyLocationOverview();
registerLocationListener();

Button button1 = (Button) menu.findViewById(R.id.button1);
Button button2 = (Button) menu.findViewById(R.id.button2);

useLastKnownLocation(locationManager);

final View[] children = new View[] { menu, app };

// Scroll to app (view[1]) when layout finished.
int scrollToViewIdx = 1;
scrollView.initViews(children, scrollToViewIdx,
    new SizeCallbackForMenu(btnSlide));
}

这是我应该修改的方法。如何修改下面的方法，使其与谷歌地图V2工作

This is the method I am supposed to modify. How can I modify the below method so that it will work with Google Map V2

/**
 * Initialize the map with default settings
 *
 */
private void initViewMembers(View app2) {

mapView = (MapView) app2.findViewById(R.id.mapView);

//map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();

listView = (ListView) app2.findViewById(R.id.mylist);
mapView.setBuiltInZoomControls(true);
mapController = mapView.getController();
mapController.setZoom(14);
mapView.setStreetView(true);

}

如果你在我的上方 initViewMembers方法请参见我使用APP2视图来获取的MapView ID，然后在另一个地方使用它。如果我要使用谷歌地图API V2键然后我需要使用 MapFragment 在我的下一行所提到的我已经注释掉。现在我想知道我怎么能获得地图编号从 APP2视图如果我使用谷歌地图API密钥V2

If you see in my above initViewMembers method I am using app2 view to get the mapView id and then use it in another place. If I am going to use Google Map API v2 key then I need to use MapFragment as mentioned in my next line which I have commented out. Now I am wondering how can I get the map id from the app2 view if I am using Google Map API key v2

所以我的问题是如何从视图中获得MapFragment事？

So my question is how to get the MapFragment thing from the view?

下面是我的 horz_scroll_app xml文件里面有片段为谷歌地图V2

Below is my horz_scroll_app xml file which has fragment for Google Map v2

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/app"
    android:layout_width="1dp"
    android:layout_height="1dp"
    android:layout_margin="2px"
    android:orientation="vertical"
    android:padding="2px" >

    <LinearLayout
        android:id="@+id/tabBar"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <ImageView
            android:id="@+id/BtnSlide"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="0px"
            android:padding="0px"
            android:src="@drawable/button" />
    </LinearLayout>

    <!--
    <com.google.android.maps.MapView
        android:id="@+id/mapView"
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:apiKey="0s_fADEBtq0-j_teQ1j-yaoDAivoHHtwN81rJ-g"
        android:clickable="true"
        android:state_enabled="true" />
    -->

    <fragment
        android:id="@+id/map"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        class="com.google.android.gms.maps.MapFragment" />


    <LinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="0.8"
        android:orientation="horizontal" >

        <ListView
            android:id="@+id/mylist"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:layout_weight="1" >
        </ListView>

    </LinearLayout>

</LinearLayout>

我不能做这样的事情在我的上面initViewMembers方法 -

I cannot do something like this in my above initViewMembers method-

地图=（（MapFragment）app2.findFragmentById（R.id.map））的GetMap（）;

我要寻找类似的东西。

推荐答案

在您的XML添加此

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

这是如何可以获取对象引用

This is how you can get the object reference

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

1），则需要导入谷歌播放-services_lib到工作区。
2）添加Android的支持，v4.jar
3）你开发者控制台激活的Andr​​oid谷歌地图V2并获得API密钥。
4）添加follwing权限来体现

1) you need to import google-play-services_lib to your workspace. 2) add android-support-v4.jar 3) in you developer console activate android google maps v2 and get the api key. 4) add follwing permissions to manifest

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<!--
 The following two permissions are not required to use
 Google Maps Android API v2, but are recommended.
-->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

<permission
    android:name="YOURPACKAGE.permission.MAPS_RECEIVE"
    android:protectionLevel="signature" />

<uses-permission android:name="YOURPACKAGE.permission.MAPS_RECEIVE" />

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