谷歌+ for android(获取空指针)

Question

我正试图通过浏览此官方谷歌文档来整合Google+ for Android .按照给出的步骤后:

1. Dwnload最新的SDK
2. 使用Android 4.4.2,
3. 配置Eclipse使用Java 1.7(虽然它说使用1.6,我猜它不是我的问题)
4. 然后通过提供Package.Name和启用Google+ API Sha1.然后我配置示例应用程序 并附加google-play-services_lib(导入)到它.

现在,当我运行应用程序时,它在MainActivity中提供了Exception

mGoogleApiClient = new GoogleApiClient.Builder(this)
    .addConnectionCallbacks(this)
    .addOnConnectionFailedListener(this)
    .addApi(Plus.API, null) // here the exception (nullPointerException) 
    .addScope(Plus.SCOPE_PLUS_LOGIN).build();

我在物理设备Android 4.1.2上运行它.

通过谷歌,但没有运气.

logcat的:

05-27 10:23:46.808: D/ActivityThread(11136): setTargetHeapUtilization:0.25 05-27 10:23:46.808: D/ActivityThread(11136): setTargetHeapIdealFree:8388608 05-27 10:23:46.808: D/ActivityThread(11136): setTargetHeapConcurrentStart:2097152 05-27 10:23:47.228: D/AndroidRuntime(11136): Shutting down VM 05-27 10:23:47.228: W/dalvikvm(11136): threadid=1: thread exiting with uncaught exception (group=0x411eb438) 05-27 10:23:47.228: E/AndroidRuntime(11136): FATAL EXCEPTION: main 05-27 10:23:47.228: E/AndroidRuntime(11136): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.mygoogleplus/com.example.mygoogleplus.GooglePlusMainActivity}: java.lang.NullPointerException: Null options are not permitted for this Api 05-27 10:23:47.228: E/AndroidRuntime(11136): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2114) 05-27 10:23:47.228: E/AndroidRuntime(11136): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2139) 05-27 10:23:47.228: E/AndroidRuntime(11136): at android.app.ActivityThread.access$700(ActivityThread.java:143) 05-27 10:23:47.228: E/AndroidRuntime(11136): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1241) 05-27 10:23:47.228: E/AndroidRuntime(11136): at android.os.Handler.dispatchMessage(Handler.java:99) 05-27 10:23:47.228: E/AndroidRuntime(11136): at android.os.Looper.loop(Looper.java:137) 05-27 10:23:47.228: E/AndroidRuntime(11136): at android.app.ActivityThread.main(ActivityThread.java:4960) 05-27 10:23:47.228: E/AndroidRuntime(11136): at java.lang.reflect.Method.invokeNative(Native Method) 05-27 10:23:47.228: E/AndroidRuntime(11136): at java.lang.reflect.Method.invoke(Method.java:511) 05-27 10:23:47.228: E/AndroidRuntime(11136): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038) 05-27 10:23:47.228: E/AndroidRuntime(11136): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805) 05-27 10:23:47.228: E/AndroidRuntime(11136): at dalvik.system.NativeStart.main(Native Method) 05-27 10:23:47.228: E/AndroidRuntime(11136): Caused by: java.lang.NullPointerException: Null options are not permitted for this Api 05-27 10:23:47.228: E/AndroidRuntime(11136): at com.google.android.gms.internal.fq.b(Unknown Source) 05-27 10:23:47.228: E/AndroidRuntime(11136): at com.google.android.gms.common.api.GoogleApiClient$Builder.addApi(Unknown Source) 05-27 10:23:47.228: E/AndroidRuntime(11136): at com.example.mygoogleplus.GooglePlusMainActivity.onCreate(GooglePlusMainActivity.java:89) 05-27 10:23:47.228: E/AndroidRuntime(11136): at android.app.Activity.performCreate(Activity.java:5203) 05-27 10:23:47.228: E/AndroidRuntime(11136): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094) 05-27 10:23:47.228: E/AndroidRuntime(11136): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2078)

Answer 1

以下对我有用.

只需以这种方式传递一个参数即可.

.addApi(Plus.API) 

代替

.addApi(Plus.API, null)

要么

你也可以传递一个PlusOptions对象

.addApi(Plus.API, Plus.PlusOptions.builder().build())

这些解决方案都可以使用.