Android 2.3和Google Maps API v2

Question

今天，我尝试使用适用于Android 2.3.3的Google Maps api v2我的步骤：

• 从debug.keystore获得SHA1代码
• 在Google API控制台中创建一个新项目
• 注册一个新的ID
• 启用了Google Maps android api v2
• 使用输入SHA1创建一个Android密钥； it.mappe（it.mappe是我的包）
• 获取API密钥
• 更新AndroidManifest文件：

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

    <uses-permission android:name="it.mappe.permission.MAPS_RECEIVE" />
    <uses-sdk android:minSdkVersion="10" android:targetSdkVersion="16" />

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>

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

            <activity
                android:name="it.mappe.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>
    </application>

• 我的主要活动

        public class MainActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }   

• 我的activity_main：

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

• 将目录复制ANDROID_SDK_DIR/extras/google/google_play_services/libproject/google-play-services_lib到项目的根目录

• 添加/extras/android/compatibility/v4/android-support-v4.jar为外部罐

• 将下一行添加到 YOUR_PROJECT/project.properties android.library.reference.1=google-play-services_lib

当我在三星银河S上运行它（使用Google Play服务apk）时，它崩溃并且logcat显示此错误

    E/AndroidRuntime(6435): FATAL EXCEPTION: main java.lang.RuntimeException: Unable to start activity ComponentInfo{it.mappe/it.mappe.MainActivity}: 

    android.view.InflateException: Binary XML file line #2: Error inflating class fragment
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
        at android.app.ActivityThread.access$1500(ActivityThread.java:117)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:123)
        at android.app.ActivityThread.main(ActivityThread.java:3687)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:507)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
        at dalvik.system.NativeStart.main(Native Method)
     Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class fragment
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:581)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:386)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
        at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:209)
        at android.app.Activity.setContentView(Activity.java:1657)
        at it.mappe.MainActivity.onCreate(MainActivity.java:12)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615)
        ... 11 more
     Caused by: java.lang.ClassNotFoundException: android.view.fragment in loader dalvik.system.PathClassLoader[/data/app/it.mappe-2.apk]
        at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
        at android.view.LayoutInflater.createView(LayoutInflater.java:471)
        at android.view.LayoutInflater.onCreateView(LayoutInflater.java:549)
        at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:66)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:568)
        ... 19 more

一些建议？

编辑

这是我的main.xml：

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

Answer 1

<fragment> 应该全部小写。

另外，您正在使用Activity（不是FragmentActivity）与SupportMapFragment，并且我怀疑该组合是否有效。