[android-developers] Re: HttpURLConnection redirect - doInBackground
This was caused by the fact that I sent the same headers and did not change the "host" header of the request which caused Apache to be confused it seems. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] HttpURLConnection redirect - doInBackground
I'm using HttpURLConnection to do communication with a backend server and
im doing so in an async task in the doInBackground method as you should.
Now I need to be able to follow 302 redirects, but I'm having some problems
with this. The issue is that the new location usually will be on another
host, however when doing the redirect request it seem not to change the URL
to a new host hence I get a 404 error saying the specified path does not
exits.
Now I know I could set HtppURLConnection.setFollowRedirect but I need to
have more control over the redirects so they should not just be followed
blindly. The Redirect behavour should be controlled by the object who
called the asynctask (when an asynctask object is created you pass the
object who creates it in a parameter called _callback).
Heres's my current code:
protected HttpResponse doInBackground(String... req) {
HttpURLConnection urlConnection = null;
try {
urlConnection = (HttpURLConnection) this._url.openConnection();
urlConnection.setConnectTimeout( (int) this._timeout*1000);
String body = req[0];
// set headers / write information to output stream if request is post
// create the response object
HttpResponse responseObject = null;
try
{
// get status, contenttype, charset...
InputStream in = null;
if (urlConnection.getResponseCode() != -1 &&
urlConnection.getResponseCode() < 300)
{
in = new BufferedInputStream(urlConnection.getInputStream(), 8192);
}
else
{
in = new BufferedInputStream(urlConnection.getErrorStream(), 8192);
}
responseObject = new HttpResponse(in, status, contentType, charset);
// if redirect
if (status == 302 && this._callback.onRedirect(responseObject) == true)
{
// recall
String url = urlConnection.getHeaderField("location");
Log.v("Async Task", "Redirect location: " + url);
this._url = null;
this._url = new URL(url);
urlConnection.disconnect();
urlConnection = null;
responseObject = this.doInBackground(req);
}
} catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
// return the response
return responseObject;
}
// catch some other exceptions
finally
{
if (urlConnection != null)
{
urlConnection.disconnect();
} }
}
And as said the problem is that the redirect request seem to change the
path of the URL but not the host. The URL object itself seem to contain the
right information so I have no idea why this is happening. (I'm getting
HTML as response which is an 404 error page that includes the server name
of the old server)
Thanks for any help!
Note: HttpResponse is just an object I created for holding the relevant
information about the response.
--
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
android-developers+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
[android-developers] DOA Object serving a Resource from Android Library Project
Hi, I'm currently making a SDK for a payment gateway, however I'm having some problems. The project setup is supposed to be: *Library Project* DAO Classe SDK Server connectivity class *Application* UI Using the above Library project And from the library project I want to send some images (drawables) for example images for what credit cards are available for the payment. These credit cards can change depending on different settings so they need to be sent dynamically to the application using the SDK. I'm currently importing the library project by selecting the library project under properties in Eclipse (I need to do it with a Jar or something to make it closed source but one problem at a time). Now the problem I get is that I get a NullPointerException when I try to set the drawable from the SDK to an ImageView in the app. Here's some code: DAO Class from the SDK (this class extends Application): > case (MASTERCARD): > this._logo = getResources().getDrawable(R.drawable.mastercard_securecode); > break; This is in the constructor. And then there's a simple getter method to access the _logo varible, which is a Drawable. The R.drawable i refer to is a ressource located in the Library Projects res folder. In the application I then want to be able to do something like: > ImageView img = (ImageView) findViewById(R.id.imageView); img.setImageDrawable( DAOObjet.getLogo() ); So that whoever implements the SDK is able to decide how the UI should be implemented. However doing it this way I'm as said getting a NullPointerException on the line that serves the Drawable from the SDK (eg the line quoted above in the switch/case statement). I have a feeling I'm loading the ressource in a completely wrong way, but I dont know. Could someone assist me with this? That would be much appreciated! -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
