[英]Android - Facebook login dialog and progress indicatior keeps popping out upon logging in
我已經在運行Android
應用程序中實現了Facebook
功能。 當用戶按下Facebook
ImageButton
,它將啟動身份驗證過程(SSO)。 然后在用戶的facebook
牆上發布信息。 一切都在模擬器上順利運行。 能夠張貼在牆上並能夠查看。
但是,在實際設備上進行測試時,用戶按下ImageButton
之后會出現一個問題。 ProgressDialog
會不斷彈出,並且不會停止。 用戶將需要通過按設備上的“ Home
按鈕來關閉程序。
可能是什么問題呢? 我沒有在Facebook.java
類中更改任何代碼
Adapter.java
ImageButton fbBtn = (ImageButton) view.findViewById(R.id.fb);
fbBtn.setOnClickListener(
new Button.OnClickListener() {
public void onClick(View v)
{
taskListener.doAuthentication();
taskListener.postToWall(data[position], text[position], name[position]);
System.out.println(text[position]);
}
}
);
public static interface FBookTaskListener{
public void doAuthentication();
public void postToWall(String data, String text, String name);
}
Activity.java
protected class TheTask extends AsyncTask<Void, Void, MyResultClass >{
protected void onPreExecute() {
dialog = ProgressDialog.show(Activity.this, "Retrieving Information", "Please wait for a few seconds...", true, false);
dialog.setCancelable(true);
}
protected MyResultClass doInBackground(Void... params) {
searchContent();
MyResultClass result = new MyResultClass();
result.mStrings = mStrings;
result.dStrings = dStrings;
result.date = date;
result.name = name;
return result;
}
@Override
protected void onPostExecute(MyResultClass result) {
dStrings = result.dStrings;
mStrings = result.mStrings;
date = result.date;
name = result.name;
LazyAdapter adapter = new Adapter(Activity.this, mStrings, dStrings, name);
list.setAdapter(adapter);
adapter.setTaskListener(new FBookTaskListener(){
public void doAuthentication()
{
// here all your FB authentication related stuff.
mPrefs = getPreferences(MODE_PRIVATE);
String access_token = mPrefs.getString("access_token", null);
long expires = mPrefs.getLong("access_expires", 0);
if(access_token != null) {
facebook.setAccessToken(access_token);
}
if(expires != 0) {
facebook.setAccessExpires(expires);
}
/*
* Only call authorize if the access_token has expired.
*/
if(!facebook.isSessionValid()) {
facebook.authorize(Activity.this, new String[] {"publish_stream", "offline_access", "read_stream"}, new DialogListener() {
@Override
public void onComplete(Bundle values)
{
SharedPreferences.Editor editor = mPrefs.edit();
editor.putString("access_token", facebook.getAccessToken());
editor.putLong("access_expires", facebook.getAccessExpires());
editor.commit();
}
@Override
public void onFacebookError(FacebookError e) {
Log.d("FACEBOOK ERROR","FB ERROR. MSG: "+e.getMessage()+", CAUSE: "+e.getCause());
}
@Override
public void onError(DialogError e) {
Log.e("ERROR","AUTH ERROR. MSG: "+e.getMessage()+", CAUSE: "+e.getCause());
}
@Override
public void onCancel() {
Log.d("CANCELLED","AUTH CANCELLED");
}
});
}
}
@Override
public void postToWall(String data, String text, String name) {
postToFacebook(data, text, name);
}
});
dialog.dismiss();
}
}
在您的活動中添加此代碼
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
facebook.authorizeCallback(requestCode, resultCode, data);
}
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