我正在尝试使用以下代码在我的 Android 应用程序中使用 Google 联系人 API 访问我的 Google 帐户联系人。
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
try {
ContactsService myService = new ContactsService("GoogleContactsProject");
GoogleOAuthParameters oauthParam = new GoogleOAuthParameters();
oauthParam.setOAuthConsumerKey("9****************u9473opkpetc*****v3.apps.googleusercontent.com");
oauthParam.setOAuthConsumerSecret("A*****************415yy6vAipya4");
oauthParam.setOAuthType(OAuthParameters.OAuthType.TWO_LEGGED_OAUTH);
myService.setOAuthCredentials(oauthParam, new OAuthHmacSha1Signer());
(new HelloThread(myService)).start();
} catch (Exception e) {
e.printStackTrace();
}
}
public class HelloThread extends Thread {
ContactsService myServ;
HelloThread(ContactsService myService) {
this.myServ = myService;
}
public void run() {
System.out.println("Hello from a thread!");
try {
printAllContacts(myServ);
} catch (ServiceException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
public static void printAllContacts(ContactsService myService)
throws ServiceException, IOException {
// Request the feed
URL feedUrl = new URL("https://www.google.com/m8/feeds/contacts/default/full");
ContactFeed resultFeed = myService.getFeed(feedUrl, ContactFeed.class);
// Print the results
System.out.println(resultFeed.getTitle().getPlainText());
for (ContactEntry entry : resultFeed.getEntries()) {
if (entry.hasName()) {
Name name = entry.getName();
if (name.hasFullName()) {
String fullNameToDisplay = name.getFullName().getValue();
if (name.getFullName().hasYomi()) {
fullNameToDisplay += " (" + name.getFullName().getYomi() + ")";
}
System.out.println("\t\t" + fullNameToDisplay);
} else {
System.out.println("\t\t (no full name found)");
}
if (name.hasNamePrefix()) {
System.out.println("\t\t" + name.getNamePrefix().getValue());
} else {
System.out.println("\t\t (no name prefix found)");
}
if (name.hasGivenName()) {
String givenNameToDisplay = name.getGivenName().getValue();
if (name.getGivenName().hasYomi()) {
givenNameToDisplay += " (" + name.getGivenName().getYomi() + ")";
}
System.out.println("\t\t" + givenNameToDisplay);
} else {
System.out.println("\t\t (no given name found)");
}
if (name.hasAdditionalName()) {
String additionalNameToDisplay = name.getAdditionalName().getValue();
if (name.getAdditionalName().hasYomi()) {
additionalNameToDisplay += " (" + name.getAdditionalName().getYomi() + ")";
}
System.out.println("\t\t" + additionalNameToDisplay);
} else {
System.out.println("\t\t (no additional name found)");
}
if (name.hasFamilyName()) {
String familyNameToDisplay = name.getFamilyName().getValue();
if (name.getFamilyName().hasYomi()) {
familyNameToDisplay += " (" + name.getFamilyName().getYomi() + ")";
}
System.out.println("\t\t" + familyNameToDisplay);
} else {
System.out.println("\t\t (no family name found)");
}
if (name.hasNameSuffix()) {
System.out.println("\t\t" + name.getNameSuffix().getValue());
} else {
System.out.println("\t\t (no name suffix found)");
}
} else {
System.out.println("\t (no name found)");
}
System.out.println("Email addresses:");
for (Email email : entry.getEmailAddresses()) {
System.out.print(" " + email.getAddress());
if (email.getRel() != null) {
System.out.print(" rel:" + email.getRel());
}
if (email.getLabel() != null) {
System.out.print(" label:" + email.getLabel());
}
if (email.getPrimary()) {
System.out.print(" (primary) ");
}
System.out.print("\n");
}
System.out.println("IM addresses:");
for (Im im : entry.getImAddresses()) {
System.out.print(" " + im.getAddress());
if (im.getLabel() != null) {
System.out.print(" label:" + im.getLabel());
}
if (im.getRel() != null) {
System.out.print(" rel:" + im.getRel());
}
if (im.getProtocol() != null) {
System.out.print(" protocol:" + im.getProtocol());
}
if (im.getPrimary()) {
System.out.print(" (primary) ");
}
System.out.print("\n");
}
System.out.println("Groups:");
for (GroupMembershipInfo group : entry.getGroupMembershipInfos()) {
String groupHref = group.getHref();
System.out.println(" Id: " + groupHref);
}
System.out.println("Extended Properties:");
for (ExtendedProperty property : entry.getExtendedProperties()) {
if (property.getValue() != null) {
System.out.println(" " + property.getName() + "(value) = " +
property.getValue());
} else if (property.getXmlBlob() != null) {
System.out.println(" " + property.getName() + "(xmlBlob)= " +
property.getXmlBlob().getBlob());
}
}
Link photoLink = entry.getContactPhotoLink();
String photoLinkHref = photoLink.getHref();
System.out.println("Photo Link: " + photoLinkHref);
if (photoLink.getEtag() != null) {
System.out.println("Contact Photo's ETag: " + photoLink.getEtag());
}
System.out.println("Contact's ETag: " + entry.getEtag());
}
}
但我没有得到像这样的错误
进程：com.itconquest.myapplication，PID：3697 java.lang.NullPointerException：在 com.google.gdata.client.http.HttpGDataRequest.handleErrorResponse(HttpGDataRequest.java:608) 在 com.google.gdata.client 没有身份验证标头信息.http.GoogleGDataRequest.handleErrorResponse(GoogleGDataRequest.java:564) 在 com.google.gdata.client.http.HttpGDataRequest.checkResponse(HttpGDataRequest.java:560) 在 com.google.gdata.client.http.HttpGDataRequest。在 com.google.gdata.client.Service.getFeed(Service.java:1135) 在 com.google.gdata.client.http.GoogleGDataRequest.execute(GoogleGDataRequest.java:536) 处执行(HttpGDataRequest.java:538) .google.gdata.client.Service.getFeed(Service.java:998) 在 com.google.gdata.client.GoogleService.getFeed(GoogleService.java:645) 在 com.google.gdata.client.Service.getFeed(Service .java：1017) 在 com.itconquest.myapplication.MainActivity.printAllContacts(MainActivity.java:82) 在 com.itconquest.myapplication.MainActivity$HelloThread.run(MainActivity.java:60) 09-05 12:28:45.194 3697-3772/ com.itconquest.myapplication E/Surface：getSlotFromBufferLocked：未知缓冲区：0xae3f3b50
这是我的 Gradle 文件
apply plugin: 'com.android.application'
android { compileSdkVersion 24 buildToolsVersion "24.0.2"
defaultConfig {
applicationId "com.itconquest.myapplication"
minSdkVersion 15
targetSdkVersion 24
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
} 存储库 { mavenCentral() } buildscript { 存储库 { maven { url ' http://repo1.maven.org/maven2 ' } }
} 依赖项 { 编译 fileTree(dir: 'libs', include: ['*.jar']) testCompile 'junit:junit:4.12' compile 'com.android.support:appcompat-v7:24.2.0' compile 'com. google.api-client:google-api-client:1.22.0' 编译 'com.google.gdata:core:1.47.1' }
我的谷歌账户截图如下
注意：我使用 OAuth 2.0 客户端 ID 作为 setOAuthConsumerKey，使用 API 密钥作为 setOAuthConsumerSecret
如何解决这个问题？