直升机，
如何使用google calendar api插入新日历？
我尝试了以下代码并使用新的Retrievetask（）执行.execute（）：
class RetrieveTask extends AsyncTask<Void, Void, Void> {
private Exception exception;
@Override
protected Void doInBackground(Void... voids) {
try {
HttpTransport HTTP_TRANSPORT = AndroidHttp.newCompatibleTransport();
FileDataStoreFactory DATA_STORE_FACTORY = new FileDataStoreFactory(new File(CalendarActivity.this.getFilesDir(), ".credentials/calendar-java-quickstart"));
List<String> SCOPES =
Arrays.asList(CalendarScopes.CALENDAR);
JsonFactory JSON_FACTORY =
JacksonFactory.getDefaultInstance();
InputStream in =
Events.class.getResourceAsStream("/client_id.json");
GoogleClientSecrets clientSecrets =
GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(in));
// Build flow and trigger user authorization request.
GoogleAuthorizationCodeFlow flow =
new GoogleAuthorizationCodeFlow.Builder(
HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, SCOPES)
.setDataStoreFactory(DATA_STORE_FACTORY)
.setAccessType("online")
.build();
Credential credential = new AuthorizationCodeInstalledApp(
flow, new LocalServerReceiver()).authorize("user");
HttpTransport transport = AndroidHttp.newCompatibleTransport();
JsonFactory jsonFactory = JacksonFactory.getDefaultInstance();
com.google.api.services.calendar.Calendar service = new com.google.api.services.calendar.Calendar.Builder(
transport, jsonFactory, credential)
.setApplicationName("kalender")
.build();
com.google.api.services.calendar.model.Calendar cal = new com.google.api.services.calendar.model.Calendar();
cal.setSummary("test123");
service.calendars().insert(cal);
} catch(Exception e) {
System.out.println("test failed");
e.printStackTrace();
}
return null;
}
}
但是我的应用程序崩溃时出现以下错误（请参阅下面的帖子） .
当我尝试没有Asynctask，然后我得到android.os.NetworkOnMainThreadException .
我究竟做错了什么？
08-23 14:17:13.926 16556-16675 / de.ubik.kalender E / AndroidRuntime：FATAL EXCEPTION：AsyncTask＃2进程：de.ubik.kalender，PID：16556 java.lang.RuntimeException：执行时发生错误do.Background（）在android.os.AsyncTask $ 3.done（AsyncTask.java:318）java.util.concurrent.FutureTask.finishCompletion（FutureTask.java:354）java.util.concurrent.FutureTask.setException（FutureTask.java） ：223）at java.util.concurrent.FutureTask.run（FutureTask.java:242）at android.os.AsyncTask $ SerialExecutor $ 1.run（AsyncTask.java:243）at java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor） .java：1133）java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:607）at java.lang.Thread.run（Thread.java:761）引起：java.lang.NoClassDefFoundError：解析失败作者：Ljava / awt / Desktop;在com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp.browse（AuthorizationCodeInstalledApp.java:127）在com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp.onAuthorization（AuthorizationCodeInstalledApp . Java的：111）在com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp.authorize（AuthorizationCodeInstalledApp.java:79）在de.ubik.kalender.CalendarActivity $ RetrieveFeedTask.doInBackground（CalendarActivity.java:199） at de.ubik.kalender.CalendarActivity $ RetrieveFeedTask.doInBackground（CalendarActivity.java:171）at android.os.AsyncTask $ 2.call（AsyncTask.java:304）at java.util.concurrent.FutureTask.run（FutureTask.java： 237）在android.os.AsyncTask $ SerialExecutor $ 1.run（AsyncTask.java:243）java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1133）at java.util.concurrent.ThreadPoolExecutor $ Worker.run（ ThreadPoolExecutor.java:607）在java.lang.Thread.run（Thread.java:761）引起：java.lang . ClassNotFoundException：在路径上找不到类“java.awt.Desktop”：DexPathList [[zip文件“/data/app/de.ubik.kalender-1/base.apk”，zip文件“/ data / app / de .ubik.kalender-1 / split_lib_dependencies_apk.apk “zip文件 ”/data/app/de.ubik.kalender-1/split_lib_slice_0_apk.apk“，zip文件” /data/app/de.ubik.kalender-1/split_lib_slice_1_apk .apk“，zip文件”/data/app/de.ubik.kalender-1/split_lib_slice_2_apk.apk“，zip文件”/data/app/de.ubik.kalender-1/split_lib_slice_3_apk.apk“，zip文件”/ data / app / de.ubik.kalender-1 / split_lib_slice_4_apk.apk“，zip文件”/data/app/de.ubik.kalender-1/split_lib_slice_5_apk.apk“，zip文件”/data/app/de.ubik . KALENDER-1 / split_lib_slice_6_apk.apk”，zip文件 “/data/app/de.ubik.kalender-1/split_lib_slice_7_apk.apk”，zip文件 “/data/app/de.ubik.kalender-1/split_lib_slice_8_apk.apk” ，zip文件“/data/app/de.ubik.kalender-1/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/data/app/de.ubik.kalender-1/lib/x86,/ system / lib，/ vendor / lib]]在dalvik.system.BaseDexClassLoade r.findClass（BaseDexClassLoader.java:56）位于com.google.api.client.extensions的java.lang.ClassLoader.loadClass（ClassLoader.java:380）java.lang.ClassLoader.loadClass（ClassLoader.java:312） .java6.auth.oauth2.AuthorizationCodeInstalledApp.browse（AuthorizationCodeInstalledApp.java:127）在com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp.onAuthorization（AuthorizationCodeInstalledApp.java:111）在com.google.api .client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp.authorize（AuthorizationCodeInstalledApp.java:79）在de.ubik.kalender.CalendarActivity $ RetrieveFeedTask.doInBackground（CalendarActivity.java:199）在de.ubik.kalender.CalendarActivity $ RetrieveFeedTask .doInBackground（CalendarActivity.java:171）at android.os.AsyncTask $ 2.call（AsyncTask.java:304）at java.util.concurrent.FutureTask.run（FutureTask.java:237）at android.os.AsyncTask $ SerialExecutor $ 1.run（AsyncTask.java:243）在java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.ja） va：1133）at java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:607）at java.lang.Thread.run（Thread.java:761）
我究竟做错了什么