Android 2.3和谷歌 Map API v2

今天我尝试使用谷歌 Map api v2 for Android 2.3.3我的步骤:

  • 从debug.keystore获取SHA1代码

  • 在google apis控制台中创建一个新项目

  • 注册一个新的id

  • 启用谷歌 Map 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 ANDROID_SDK_DIR/extras/google/google_play_services/libproject/google-play-services_lib 复制到项目的根目录

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

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

当我在我的三星galaxy S(使用google play services apk)上运行它时,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"/>

回答(2)

2 years ago

<fragment> 应全部小写 .

此外,您正在使用 Activity (不是 FragmentActivity )与 SupportMapFragment ,我怀疑该组合是否有效 .

2 years ago

检查project.properties中的目标Google SDK版本和支持lib(Android.jar)版本是否相同 .