我实现了一个异步任务，用于在Facebook墙上发布带有标题的图像代码工作正常，但现在突然显示以下异常：
12-12 14:18:32.277: W/Bundle(9197): Key access_token expected byte[] but value was a java.lang.String. The default value <null> was returned.
12-12 14:18:32.280: W/Bundle(9197): Attempt to cast generated internal exception:
12-12 14:18:32.280: W/Bundle(9197): java.lang.ClassCastException: java.lang.String cannot be cast to byte[]
12-12 14:18:32.280: W/Bundle(9197): at android.os.BaseBundle.getByteArray(BaseBundle.java:1104)
12-12 14:18:32.280: W/Bundle(9197): at android.os.Bundle.getByteArray(Bundle.java:959)
12-12 14:18:32.280: W/Bundle(9197): at com.hiteshi.thermoblue.util.Util.openUrl(Util.java:292)
12-12 14:18:32.280: W/Bundle(9197): at com.hiteshi.facebook.Facebook.request(Facebook.java:541)
12-12 14:18:32.280: W/Bundle(9197): at comfacebook.AsyncFacebookRunner$2.run(AsyncFacebookRunner.java:244)
12-12 14:18:32.280: W/Bundle(9197): Key format expected byte[] but value was a java.lang.String. The default value <null> was returned.
12-12 14:18:32.281: W/Bundle(9197): Attempt to cast generated internal exception:
12-12 14:18:32.281: W/Bundle(9197): java.lang.ClassCastException: java.lang.String cannot be cast to byte[]
12-12 14:18:32.281: W/Bundle(9197): at android.os.BaseBundle.getByteArray(BaseBundle.java:1104)
12-12 14:18:32.281: W/Bundle(9197): at android.os.Bundle.getByteArray(Bundle.java:959)
12-12 14:18:32.281: W/Bundle(9197): at com.hiteshi.thermoblue.util.Util.openUrl(Util.java:292)
12-12 14:18:32.281: W/Bundle(9197): at com.hiteshi.facebook.Facebook.request(Facebook.java:541)
12-12 14:18:32.281: W/Bundle(9197): at com.facebook.AsyncFacebookRunner$2.run(AsyncFacebookRunner.java:244)
12-12 14:18:32.293: W/Bundle(9197): Key method expected byte[] but value was a java.lang.String. The default value <null> was returned.
12-12 14:18:32.294: W/Bundle(9197): Attempt to cast generated internal exception:
12-12 14:18:32.294: W/Bundle(9197): java.lang.ClassCastException: java.lang.String cannot be cast to byte[]
12-12 14:18:32.294: W/Bundle(9197): at android.os.BaseBundle.getByteArray(BaseBundle.java:1104)
12-12 14:18:32.294: W/Bundle(9197): at android.os.Bundle.getByteArray(Bundle.java:959)
12-12 14:18:32.294: W/Bundle(9197): at com.hiteshi.thermoblue.util.Util.openUrl(Util.java:292)
12-12 14:18:32.294: W/Bundle(9197): at com.hiteshi.facebook.Facebook.request(Facebook.java:541)
12-12 14:18:32.294: W/Bundle(9197): at com.facebook.AsyncFacebookRunner$2.run(AsyncFacebookRunner.java:244)
12-12 14:55:21.846: D/Facebook-Example(14446): Response: {"error":{"message":"(#200) Permissions error","type":"OAuthException","code":200}}
12-12 14:55:21.847: W/Facebook-Example(14446): Facebook Error: (#200) Permissions error
这是我在Facebook墙上发布的方法：
/**
* Post image and comment on facebook wall
*
* @param wallMessage
*/
public void postImageOnFacebookWall(final String wallMessage) {
new AsyncTask<Void, Void, Boolean>() {
protected void onPreExecute() {
_progressDialog = ProgressDialog.show(_activity, "","Loading...");
};
@Override
protected Boolean doInBackground(Void... params) {
try {
try {
Bundle bundle = new Bundle();
mAsyncRunner = new AsyncFacebookRunner(facebook);
bundle.putString("caption", wallMessage);
bundle.putByteArray("picture", imageBytes);
mAsyncRunner.request("me/photos", bundle,
"POST",new SampleUploadListener(),null );
} catch (Exception e) {
e.printStackTrace();
_progressDialog .dismiss();
}
return true;
} catch (Exception e) {
Log.d("TAG", " Exception.." + e);
_progressDialog .dismiss();
//StoreLocatorDetailScreen.bytes=null;
return false;
}
}
protected void onPostExecute(Boolean result) {
super.onPostExecute(result);
_progressDialog .dismiss();
Toast.makeText(_activity, _activity.getResources().getString(R.string.posted_success), Toast.LENGTH_SHORT).show();
}
}.execute();
}
答案 0 :(得分：0)
我自己解决了。
我刚刚将代码更改为：
/**
* Post image and comment on facebook wall
*
* @param wallMessage
*/
public void postImageOnFacebookWall(final String wallMessage) {
new AsyncTask<Void, Void, Boolean>() {
protected void onPreExecute() {
_progressDialog = ProgressDialog.show(_activity, "","Posting...");
};
@Override
protected Boolean doInBackground(Void... params) {
try {
try {
Looper.prepare();
/*Bundle bundle = new Bundle();
mAsyncRunner = new AsyncFacebookRunner(facebook);
Bundle param = new Bundle();
param.putString("message", "picture caption");
param.putByteArray("picture", imageBytes);
mAsyncRunner.request("me/photos", param,
"POST",new SampleUploadListener(),null );*/
mAsyncRunner=new AsyncFacebookRunner(facebook);
Bundle bundle = new Bundle();
bundle.putString("app_id", APP_ID);
bundle.putString("message", msg);
bundle.putByteArray("picture", imageBytes);
facebook.authorize(_activity, PERMISSIONS, new LoginDialogListener());
mAsyncRunner.request("me/photos", bundle, "POST", new SampleUploadListener());
} catch (Exception e) {
e.printStackTrace();
_progressDialog .dismiss();
}
return true;
} catch (Exception e) {
Log.d("TAG", " Exception.." + e);
_progressDialog .dismiss();
return false;
}
}
protected void onPostExecute(Boolean result) {
super.onPostExecute(result);
_progressDialog .dismiss();
Toast.makeText(_activity, _activity.getResources().getString(R.string.posted_success), Toast.LENGTH_SHORT).show();
}
}.execute();
}
然后创建了新的请求方法：
public void request(final String graphPath, final Bundle parameters, final String httpMethod,
final RequestListener listener) {
new Thread() {
@Override
public void run() {
try {
String resp = fb.request(graphPath, parameters, httpMethod);
listener.onComplete(resp, null);
} catch (FileNotFoundException e) {
listener.onFileNotFoundException(e, null);
} catch (MalformedURLException e) {
listener.onMalformedURLException(e, null);
} catch (IOException e) {
listener.onIOException(e, null);
}
}
}.start();
}