Question

我正在为我的应用程序使用Android Google Map API-2。单击地图视图时，它仅显示带缩放按钮的屏幕。

我的AndroidManifest.xml文件

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.burusoth.advertise"
android:versionCode="1"
android:versionName="1.0" >

<permission
    android:name="com.burusoth.advertise.permission.MAPS_RECEIVE"
    android:protectionLevel="signature" />

<uses-permission android:name="com.burusoth.advertise.permission.MAPS_RECEIVE" />

<uses-permission android:name="android.permission.CALL_PHONE" >
</uses-permission>
<uses-permission android:name="android.permission.INTERNET" >
</uses-permission>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<!-- Required to show current location -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

<uses-sdk
    android:minSdkVersion="11"
    android:targetSdkVersion="17" />

<!-- Required OpenGL ES 2.0. for Maps V2 -->
<uses-feature
    android:glEsVersion="0x00020000"
    android:required="true" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.burusoth.advertise.MainActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name="com.burusoth.advertise.View_Advertisements"
        android:label="@string/title_activity_view__advertisements" >
    </activity>
    <activity
        android:name="com.burusoth.advertise.Gadget_view"
        android:label="@string/title_activity_gadget_view"
        android:windowSoftInputMode="stateHidden" >
    </activity>
    <activity
        android:name="com.burusoth.advertise.Activity_post_advertisements"
        android:label="@string/title_activity_activity_post_advertisements" >
    </activity>
    <activity
        android:name="com.burusoth.advertise.Post_Advertisement"
        android:label="@string/title_activity_post__advertisement" >
    </activity>
    <activity
        android:name="com.burusoth.advertise.Popup"
        android:label="@string/title_activity_popup" >
    </activity>

    <activity
        android:name="com.burusoth.advertise.Google_Map"
        android:label="@string/title_activity_google__map" >
    </activity>

    <meta-data
        android:name="com.google.android.maps.v2.API_KEY"
        android:value="AIzaSyAKCvpyR3v4YStDJDoibNgoblkdch0F254" />


</application>

my activity xml file


 <RelativeLayoutxmlns: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=".Google_Map" >

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

我的Activity .java用于调用map的Activity文件公共类Google_Map扩展了活动{

private GoogleMap googleMap=null;

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

     try {
            // Loading map
            initilizeMap();

        } catch (Exception e) {
            e.printStackTrace();
        }
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.activity_google__map, menu);
    return true;
}

private void initilizeMap() {
    if (googleMap == null) {
        googleMap =((MapFragment)getFragmentManager().findFragmentById(R.id.map)).getMap();

        // check if map is created successfully or not
        if (googleMap == null) {
            Toast.makeText(getApplicationContext(),
                    "Sorry! unable to create maps", Toast.LENGTH_SHORT)
                    .show();
        }
    }
}

@Override
protected void onResume() {
    super.onResume();
    initilizeMap();
}

}

Answer 1

在此，我想分享一个在Google Map API v2下运行的示例。您可以执行这些步骤，也可以从下面的链接下载完整的示例。

这是一个有效的例子。请在真实设备中测试。

Google Maps API v2 using Android

如果您有任何疑问，请提供您的评论。

Answer 2

您需要将API_KEY放入Android清单中从获得： Google Map API_KEY

Google地图视图仅显示带有缩放按钮的灰色屏幕

2 个答案: