Hi! Took me a few days to look at your answer(holiday time^^) and it seems that my solution with manipulating the textview in the "onPostExecute" Method doesnt work stable(I dont get it....), so I will try it as you said in the "publish progress" Method, lets hope for the best :D
On 16 Aug., 15:48, Robert Thau <[email protected]> wrote: > On Sun, Aug 14, 2011 at 11:16 AM, Ben <[email protected]> wrote:Hi! > > > ->If I try to connect to an existing address, I get the message > > "tv.append("after socket");" but just a second after that I get "08-13 > > 20:44:05.657: ERROR/AndroidRuntime(304): Caused by: > > android.view.ViewRoot$CalledFromWrongThreadException: Only the original > > thread that created a view hierarchy can touch its views." > > ->If I try to connect to an address that is not existing(which is exactly > > the situation I want to simulate) I wont get any exception like "unknown > > host" or anything it just hangs and hangs and hangs withour any error or > > something till it kills my router with its trying(DDos anyone?) :D > > I can help you with this bit --- you shouldn't try to manipulate the > TextView directly in > your doInBackground method. The easiest thing to do for debugging status > messages > like these is to use Log.d and Log.e to put them in the log, and read them > out with "adb > logcat" (or the log pane in Eclipse, or whatever). If you really do want to > display them > directly on the phone UI, the easiest thing to do is have your background > code (that is, > the doInBackground method) publishProgress(), and put the UI updates in an > onProgressUpdate() method. > > (What's going on here is that the Android UI classes are not thread-safe; > manipulating > them off the activity's main thread will either get you exceptions like > this, or something > worse. The AsyncTask machinery arranges to run onProgressUpdate on that > thread, so > UI manipulation there is safe.) > > rst -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
