A JQuery plugin for carousel. No coding required.
It is a JQuery carousel plugin to cycle through content with minimal coding. It has minimal transition effects and uses JQuery's animate function. Keyboard navigation is also available.
Questions tagged [looper]
190 questions
110
votes
5 answers
What is the relationship between Looper, Handler and MessageQueue in Android?
I have checked the official Android documentation/guide for Looper, Handler and MessageQueue . But I couldn't get it. I am new to android, and got very confused with these concepts.
Blake
- 7,367
- 19
- 54
- 80
78
votes
4 answers
How to create a Looper thread, then send it a message immediately?
I have a worker thread that sits in the background, processing messages. Something like this:
class Worker extends Thread {
public volatile Handler handler; // actually private, of course
public void run() {
Looper.prepare();
…
Thomas
- 174,939
- 50
- 355
- 478
78
votes
4 answers
Can't create handler inside thread that has not called Looper.prepare() inside AsyncTask for ProgressDialog
I don't understand why I'm getting this error. I'm using AsyncTask to run some processes in the background.
I have:
protected void onPreExecute()
{
connectionProgressDialog = new ProgressDialog(SetPreference.this);
…
mlevit
- 2,676
- 10
- 42
- 50
31
votes
2 answers
AsyncTask and Looper.prepare() error
I have the following code
class OverlayTask extends AsyncTask {
@Override
public void onPreExecute() {
if (sites != null) {
myMapView.getOverlays().remove(sites);
myMapView.invalidate();
…
Lee Armstrong
- 11,420
- 15
- 74
- 122
27
votes
6 answers
How to raise a toast in AsyncTask, I am prompted to used the Looper
I have tasks completed by AsyncTask in background. At some point I need to issue a Toast that something is completed.
I've tried and I failed because
Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called…
Pentium10
- 204,586
- 122
- 423
- 502
14
votes
4 answers
How to better unit test Looper and Handler code on Android?
I use the android.os.Handler class to perform tasks on the background. When unit testing these, I call Looper.loop() to make the test thread wait for the background task thread to do its thing. Later, I call Looper.myLooper().quit() (also in the…
Marcelo Camelo
- 176
- 1
- 7
12
votes
1 answer
What happens if a Handler posts a message to a thread after Looper.prepare() but before Looper.loop() has been called?
Consider the following snippet:
Looper.prepare();
handler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
getLooper().quitSafely();
}
};
for(int i =…
Chad
- 2,335
- 8
- 29
- 45
11
votes
1 answer
Android Looper vs BlockingQueue?
Can anyone explain why someone should use the Android Looper feature to create a "pipeline thread" instead of making a normal thread that pulls tasks from a BlockingQueue? On the surface, it seems like two ways to do the same thing.
jfritz42
- 5,913
- 5
- 50
- 66
9
votes
5 answers
How to manage Loopers and Threads (thread doesn't die anymore!)
I created a class extending Thread to retrieve user location through LocationManager in a non-ui thread. I implemented this as a thread because it has to be started on request and do its work just for a limited time.
By the way, I had to add a…
e-cal
- 1,661
- 2
- 20
- 28
9
votes
2 answers
CountDownTimer: "Can't create handler inside thread that has not called Looper.prepare()"
I know the general problem of "Can't create handler inside thread that has not called Looper.prepare()" has been asked before, but I am struggling to understand how it applies in this case.
I am trying to construct a new CountDownTimer in a non-UI…
skaz
- 21,962
- 20
- 69
- 98
9
votes
2 answers
A/Looper: Could not create wake pipe. errno=24
We're building an app that does a lot of animations and downloads a lot of images. After a certain amount of transactions (a predictable number), the app is crashing with the error:
A/Looper: Could not create wake pipe. errno=24
We don't use Looper…
Karim Varela
- 7,562
- 10
- 53
- 78
7
votes
2 answers
How to quit HandlerThread's looper safely
I have a HandlerThread, to which I keep posting a runnable every 5 seconds. Something like this:
HandlerThread thread = new HandlerThread("MyThread");
thread.start();
Handler handler = new Handler(thread.getLooper());
handler.post(new Runnable() {
…
sundie
- 245
- 3
- 12
7
votes
2 answers
Where to "quit" with looper?
I have a problem with a looper. I call looper.prepare(), and after doing something it all works fine. But if I rotate the device I get an exception on the prepare.
07-12 16:40:09.760: E/activity(15809): java.lang.RuntimeException: Only one Looper…
Lele
- 703
- 3
- 15
- 34
6
votes
2 answers
Specifics on using Looper.prepare() in Android
I'm having a bit of trouble understanding how to use the Looper prepare()/loop()/quit() logic.
I have three threads: one is the UI thread, one is a game logic thread and the last is a network communication thread (a background thread, lives only…
atheaos
- 721
- 2
- 7
- 16
6
votes
4 answers
Android: Only one Looper may be created per thread
I am having a problem with Android looper. I have a class that has extended AsynTask. Inside doInBackground() method i have Looper.prepare() and some code below.
It runs well and good for the first time but after that it gives an exception
" Only…
viv
- 6,158
- 6
- 39
- 54