无法运行Google Maps Android API实用程序演示

Question

我在运行Google Maps Android API Utility Demo时遇到问题,它显示以下错误:

04-03 16:32:37.397: E/dalvikvm(2592): Could not find class 'com.google.maps.android.utils.demo.ClusteringDemoActivity', referenced from method com.google.maps.android.utils.demo.MainActivity.onCreate
    04-03 16:32:37.452: E/AndroidRuntime(2592): FATAL EXCEPTION: main
    04-03 16:32:37.452: E/AndroidRuntime(2592): java.lang.NoClassDefFoundError: com.google.maps.android.utils.demo.ClusteringDemoActivity
    04-03 16:32:37.452: E/AndroidRuntime(2592):     at com.google.maps.android.utils.demo.MainActivity.onCreate(MainActivity.java:20)
    04-03 16:32:37.452: E/AndroidRuntime(2592):     at android.app.Activity.performCreate(Activity.java:5163)
    04-03 16:32:37.452: E/AndroidRuntime(2592):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
    04-03 16:32:37.452: E/AndroidRuntime(2592):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2061)
    04-03 16:32:37.452: E/AndroidRuntime(2592):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2122)
    04-03 16:32:37.452: E/AndroidRuntime(2592):     at android.app.ActivityThread.access$600(ActivityThread.java:140)
    04-03 16:32:37.452: E/AndroidRuntime(2592):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1228)
    04-03 16:32:37.452: E/AndroidRuntime(2592):     at android.os.Handler.dispatchMessage(Handler.java:99)
    04-03 16:32:37.452: E/AndroidRuntime(2592):     at android.os.Looper.loop(Looper.java:137)
    04-03 16:32:37.452: E/AndroidRuntime(2592):     at android.app.ActivityThread.main(ActivityThread.java:4895)
    04-03 16:32:37.452: E/AndroidRuntime(2592):     at java.lang.reflect.Method.invokeNative(Native Method)
    04-03 16:32:37.452: E/AndroidRuntime(2592):     at java.lang.reflect.Method.invoke(Method.java:511)
    04-03 16:32:37.452: E/AndroidRuntime(2592):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994)
    04-03 16:32:37.452: E/AndroidRuntime(2592):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)
    04-03 16:32:37.452: E/AndroidRuntime(2592):     at dalvik.system.NativeStart.main(Native Method)

虽然我按照安装演示中显示的步骤进行操作,但包中存在ClusteringDemoActivity类.

Answer 1

我通过将GoogleMapsUtil作为库添加到演示项目来解决了这个问题.

如果您按照https://developers.google.com/maps/documentation/android/utility/setup上的设置指南参考,请参阅实用程序演示应用程序中的实用程序库,执行以下操作:

1. 右键单击您的演示项目(MainActivity),然后选择"属性".
2. 单击Android选项卡.
3. 在Library部分下单击Add并选择maps util项目(称为库)