在Android中,可以通过使用Google Calendar API来从Google Calendar中获取今天的事件。以下是一种实现方法:
implementation 'com.google.android.gms:play-services-calendar:17.0.0'
<uses-permission android:name="android.permission.READ_CALENDAR" />
<uses-permission android:name="android.permission.WRITE_CALENDAR" />
import com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential;
import com.google.api.client.googleapis.extensions.android.gms.auth.UserRecoverableAuthIOException;
import com.google.api.client.util.DateTime;
import com.google.api.services.calendar.Calendar;
import com.google.api.services.calendar.CalendarScopes;
import com.google.api.services.calendar.model.Event;
import com.google.api.services.calendar.model.Events;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
public class CalendarHelper {
private static final String[] SCOPES = {CalendarScopes.CALENDAR_READONLY};
private static final String APPLICATION_NAME = "Your Application Name";
public static List<Event> getTodayEvents(GoogleAccountCredential credential) throws IOException {
Calendar service = new Calendar.Builder(AndroidHttp.newCompatibleTransport(), new GsonFactory(), credential)
.setApplicationName(APPLICATION_NAME)
.build();
DateTime now = new DateTime(System.currentTimeMillis());
DateTime todayStart = new DateTime(now.getValue(), now.getTimeZone());
todayStart.set("00:00:00");
DateTime todayEnd = new DateTime(now.getValue(), now.getTimeZone());
todayEnd.set("23:59:59");
Events events = service.events().list("primary")
.setTimeMin(todayStart)
.setTimeMax(todayEnd)
.setOrderBy("startTime")
.setSingleEvents(true)
.execute();
return events.getItems();
}
}
import com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential;
import com.google.api.client.googleapis.extensions.android.gms.auth.UserRecoverableAuthIOException;
import com.google.api.services.calendar.model.Event;
import java.io.IOException;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private static final int REQUEST_ACCOUNT_PICKER = 1000;
private static final int REQUEST_AUTHORIZATION = 1001;
private GoogleAccountCredential credential;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
credential = GoogleAccountCredential.usingOAuth2(this, Arrays.asList(CalendarScopes.CALENDAR_READONLY));
startActivityForResult(credential.newChooseAccountIntent(), REQUEST_ACCOUNT_PICKER);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_ACCOUNT_PICKER && resultCode == RESULT_OK) {
String accountName = data.getStringExtra(AccountManager.KEY_ACCOUNT_NAME);
credential.setSelectedAccountName(accountName);
new GetEventsTask().execute();
} else if (requestCode == REQUEST_AUTHORIZATION && resultCode == RESULT_OK) {
new GetEventsTask().execute();
}
}
private class GetEventsTask extends AsyncTask<Void, Void, List<Event>> {
private Exception exception;
@Override
protected List<Event> doInBackground(Void... voids) {
try {
return CalendarHelper.getTodayEvents(credential);
} catch (UserRecoverableAuthIOException e) {
startActivityForResult(e.getIntent(), REQUEST_AUTHORIZATION);
return null;
} catch (IOException e) {
exception = e;
return null;
}
}
@Override
protected void onPostExecute(List<Event> events) {
super.onPostExecute(events);
if (events != null) {
// 处理获取到的事件列表
} else if (exception != null) {
// 处理异常情况
}
}
}
}
这样,你就可以使用Google Calendar API在Android中获取今天的事件了。请注意,上述代码仅提供了基本的实现思路,实际使用时可能需要根据具体需求进行适当修改和完善。
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