Android 使用 Google 设置凭据 API

Question

我想创建一个 Android 应用程序并使用 Google 人 Api。我遵循了本教程中的所有步骤：https://developers.google.com/people/v1/getting-started.

所以我在 Google Api 控制台中创建了一个新项目，获取 Web 应用程序的客户端 ID 和客户端密码，设置同意屏幕 oauth。最后我尝试运行使用的 google 代码可以在上面 link 中看到，但是我在创建 "GoogleTokenResponse".

时遇到异常

我 post 异常，即使我觉得它没有用：

Process: simone.biliato.testpeopleapi, PID: 13067
java.lang.RuntimeException: Unable to start activity ComponentInfo{simone.biliato.testpeopleapi/simone.biliato.testpeopleapi.MainActivity}: java.lang.NullPointerException
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2658)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2723)
    at android.app.ActivityThread.access0(ActivityThread.java:172)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1422)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:145)
    at android.app.ActivityThread.main(ActivityThread.java:5832)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
 Caused by: java.lang.NullPointerException
    at com.google.api.client.repackaged.com.google.common.base.Preconditions.checkNotNull(Preconditions.java:770)
    at com.google.api.client.util.Preconditions.checkNotNull(Preconditions.java:127)
    at com.google.api.client.auth.oauth2.AuthorizationCodeTokenRequest.setCode(AuthorizationCodeTokenRequest.java:147)
    at com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeTokenRequest.setCode(GoogleAuthorizationCodeTokenRequest.java:147)
    at com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeTokenRequest.setCode(GoogleAuthorizationCodeTokenRequest.java:79)
    at com.google.api.client.auth.oauth2.AuthorizationCodeTokenRequest.<init>(AuthorizationCodeTokenRequest.java:103)
    at com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeTokenRequest.<init>(GoogleAuthorizationCodeTokenRequest.java:111)
    at com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeTokenRequest.<init>(GoogleAuthorizationCodeTokenRequest.java:92)
    at simone.biliato.testpeopleapi.MainActivity.setUp(MainActivity.java:63)
    at simone.biliato.testpeopleapi.MainActivity.onCreate(MainActivity.java:27)
    at android.app.Activity.performCreate(Activity.java:6221)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2611)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2723) 
    at android.app.ActivityThread.access0(ActivityThread.java:172) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1422) 
    at android.os.Handler.dispatchMessage(Handler.java:102)

有没有人有同样的？有没有工作的例子？我需要使用 "Google Button Sign-in"?

Answer 1

我想您可以尝试使用以下示例： https://github.com/sdivakarrajesh/Google-Drive-Java-API

它适用于 Google 驱动器 Api，但您可以使用代码获得许可，然后更改范围。

Android 使用 Google 设置凭据 API

Android setting up credential using Google API

android

credentials

oauth