在Android Studio中编辑从Google日历获取的数据,可以通过以下步骤实现:
build.gradle
文件中添加Google Calendar API的依赖:implementation 'com.google.api-client:google-api-client:1.30.10'
implementation 'com.google.oauth-client:google-oauth-client-jetty:1.30.10'
implementation 'com.google.apis:google-api-services-calendar:v3-rev305-1.30.10'
<uses-permission android:name="android.permission.INTERNET" />
GoogleCalendarService
类,用于处理与Google Calendar API的交互。在该类中,你可以使用Google提供的Java库来进行认证和数据获取。import com.google.api.client.auth.oauth2.Credential;
import com.google.api.client.extensions.android.http.AndroidHttp;
import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
import com.google.api.client.googleapis.auth.oauth2.GoogleTokenResponse;
import com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential;
import com.google.api.client.googleapis.json.GoogleJsonResponseException;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.calendar.CalendarScopes;
import com.google.api.services.calendar.model.*;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
public class GoogleCalendarService {
private static final String CLIENT_ID = "YOUR_CLIENT_ID";
private static final String CLIENT_SECRET = "YOUR_CLIENT_SECRET";
private static final String REDIRECT_URI = "YOUR_REDIRECT_URI";
private static final List<String> SCOPES = Arrays.asList(CalendarScopes.CALENDAR);
private final HttpTransport httpTransport;
private final JsonFactory jsonFactory;
private final GoogleAuthorizationCodeFlow flow;
private final GoogleAccountCredential credential;
public GoogleCalendarService() {
httpTransport = AndroidHttp.newCompatibleTransport();
jsonFactory = GsonFactory.getDefaultInstance();
flow = new GoogleAuthorizationCodeFlow.Builder(
httpTransport, jsonFactory, CLIENT_ID, CLIENT_SECRET, SCOPES)
.setAccessType("offline")
.setApprovalPrompt("force")
.build();
credential = GoogleAccountCredential.usingOAuth2(
httpTransport, jsonFactory, SCOPES)
.setBackOff(new ExponentialBackOff());
}
public String getAuthorizationUrl() throws IOException {
return flow.newAuthorizationUrl().setRedirectUri(REDIRECT_URI).build();
}
public void authorize(String authorizationCode) throws IOException {
GoogleTokenResponse tokenResponse = flow.newTokenRequest(authorizationCode)
.setRedirectUri(REDIRECT_URI)
.execute();
Credential credential = flow.createAndStoreCredential(tokenResponse, null);
this.credential.setSelectedAccountName(credential.getSelectedAccountName());
}
public List<Event> getEvents() throws IOException {
com.google.api.services.calendar.Calendar service = new com.google.api.services.calendar.Calendar.Builder(
httpTransport, jsonFactory, credential)
.setApplicationName("YOUR_APPLICATION_NAME")
.build();
Events events = service.events().list("primary").execute();
return events.getItems();
}
}
GoogleCalendarService
类来获取Google日历的事件数据。import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import java.io.IOException;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private static final int REQUEST_AUTHORIZATION = 1;
private GoogleCalendarService calendarService;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
calendarService = new GoogleCalendarService();
Button authorizeButton = findViewById(R.id.authorize_button);
authorizeButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String authorizationUrl;
try {
authorizationUrl = calendarService.getAuthorizationUrl();
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(authorizationUrl));
startActivityForResult(intent, REQUEST_AUTHORIZATION);
} catch (IOException e) {
e.printStackTrace();
}
}
});
Button getEventsButton = findViewById(R.id.get_events_button);
getEventsButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
new GetEventsTask().execute();
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_AUTHORIZATION && resultCode == RESULT_OK) {
String authorizationCode = data.getStringExtra("code");
new AuthorizeTask().execute(authorizationCode);
}
}
private class AuthorizeTask extends AsyncTask<String, Void, Void> {
@Override
protected Void doInBackground(String... params) {
try {
String authorizationCode = params[0];
calendarService.authorize(authorizationCode);
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
private class GetEventsTask extends AsyncTask<Void, Void, List<Event>> {
@Override
protected List<Event> doInBackground(Void... params) {
try {
return calendarService.getEvents();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(List<Event> events) {
if (events != null) {
// 在这里处理获取到的事件数据
}
}
}
}
以上代码演示了如何在Android Studio中编辑从Google日历获取的数据。你可以通过授权用户访问Google日历,并使用GoogleCalendarService
类来获取事件数据。请注意,你需要将YOUR_CLIENT_ID
,YOUR_CLIENT_SECRET
和YOUR_REDIRECT_URI
替换为你在Google开发者控制台中创建的项目的相关信息。
希望这些信息对你有所帮助!
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