google mapview中的错误

Question

我目前正在做一个应用程序，其中包含googlemap。下面给出了该xml文件的代码，但在图形布局中显示了一个错误

“缺少样式。为此布局选择的主题正确吗？使用布局上方的主题组合框选择其他布局，或修复主题样式引用。

xml和清单文件如下所示

    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/layout1"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent">



     <com.google.android.maps.MapView 
     android:id="@+id/myMapView1" 
     android:layout_width="fill_parent"  
     android:layout_height="fill_parent" 
     android:clickable="true" 
     android:apiKey="0mRN-6bSm63hZJtPZSmcjoZAzdCztLnZv-O4SZw" 
     >
     </com.google.android.maps.MapView>  





    </LinearLayout>

manifest.xml

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


<uses-sdk android:minSdkVersion="8" 
          android:targetSdkVersion="9"/>

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />


<application
    android:icon="@drawable/iconffff"
    android:label="@string/app_name" >
    <uses-library android:name="com.google.android.maps" />
    <activity
        android:label="@string/app_name"
        android:name="com.iqmobi.Map"
        android:screenOrientation="portrait" 
       >
        <intent-filter >
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

Answer 1

您需要将主类扩展为MapActivity

public class Abc extends MapActivity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }

    @Override
    protected boolean isRouteDisplayed() {
        // TODO Auto-generated method stub
        return false;
    }
}