我正在编写一款Android应用程序,以获取Facebook用户的相册和照片,并在我的Android应用程序中显示。我已经创建了一个APP_ID为281846961912565的Facebook应用程序。
在创建Facebook实例时,我将其ID作为以下方式传递:
facebook = new Facebook(APP_ID);
使用此实例,我可以编程登录我的FB帐户并在Facebook留言墙上发布消息。 登录后,我会获得一个access_token。
我正在使用访问令牌来获取相册ID,方法是使用
facebook.request("https://graph.facebook.com/me/albums?access_token="+facebook.getAccessToken());
现在我收到了错误信息{"error":{"message":"Malformed access token ACCESSTOKENACCESSTOKEN?access_token=ACCESSTOKENACCESSTOKEN","type":"OAuthException","code":190}}
请问有谁能帮助我解决这个问题,并指出我做错了什么。以下是我的代码:
private static final String[] PERMISSIONS = new String[] { "publish_stream","user_photos" };
public boolean saveCredentials(Facebook facebook) {
Editor editor = getApplicationContext().getSharedPreferences(KEY,
Context.MODE_PRIVATE).edit();
editor.putString(TOKEN, facebook.getAccessToken());
editor.putLong(EXPIRES, facebook.getAccessExpires());
return editor.commit();
}
public boolean restoreCredentials(Facebook facebook) {
SharedPreferences sharedPreferences = getApplicationContext()
.getSharedPreferences(KEY, Context.MODE_PRIVATE);
facebook.setAccessToken(sharedPreferences.getString(TOKEN, null));
facebook.setAccessExpires(sharedPreferences.getLong(EXPIRES, 0));
return facebook.isSessionValid();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
facebook = new Facebook(APP_ID);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.facebook_dialog);
String facebookMessage = getIntent().getStringExtra("facebookMessage");
if (facebookMessage == null) {
facebookMessage = "Test wall post";
}
messageToPost = facebookMessage;
}
R.layout.facebook_dialog是弹出询问是否在Facebook上分享消息的对话框。如果是,将调用以下方法。
public void share(View button) {
if (!facebook.isSessionValid()) {
loginAndPostToWall();
} else {
postToWall(messageToPost);
}
}
public void loginAndPostToWall() {
facebook.authorize(this, PERMISSIONS, Facebook.FORCE_DIALOG_AUTH,
new LoginDialogListener());
}
class LoginDialogListener implements DialogListener {
public void onComplete(Bundle values) {
saveCredentials(facebook);
if (messageToPost != null) {
postToWall(messageToPost);
}
}
public void onFacebookError(FacebookError error) {
showToast("Authentication with Facebook failed!");
finish();
}
public void onError(DialogError error) {
showToast("Authentication with Facebook failed!");
finish();
}
public void onCancel() {
showToast("Authentication with Facebook cancelled!");
finish();
}
}
public void postToWall(String message) {
Bundle parameters = new Bundle();
parameters.putString("message", message);
parameters.putString("description", "topic share");
try {
facebook.request("me");
String response = facebook.request("me/feed", parameters, "POST");
Log.d("Tests", "got response: " + response);
if (response == null || response.equals("")
|| response.equals("false")) {
showToast("Blank response.");
} else {
showToast("Message posted to your facebook wall!");
}
getImagesFromUserAlbum();
finish();
} catch (Exception e) {
showToast("Failed to post to wall!");
e.printStackTrace();
finish();
}
}
稍后当我执行 `private void getImagesFromUserAlbum() { facebook.getAccessToken();` 时
JSONArray albumss = null;
String response = null;
try {
response = facebook.request("me/albums");
// `
我遇到了错误{"error":{"message":"ACCESSTOKEN?access_token=ACCESSTOKEN访问令牌格式错误","type":"OAuthException","code":190}}
谢谢您的帮助。
上面的代码现在是可行的副本。感谢Bartek。
PERMISSIONS
变量是什么样子?另外,你的saveCredentials
函数在哪里?你有尝试过只使用3个参数调用facebook.authorize
吗?(不包括Facebook.FORCE_DIALOG_AUTH
)? - Bartek