Android :: Keep Toast From Building Up A Queue Of Messages?
Nov 27, 2009
How can I keep Toast from building up a queue of messages?
I'm working on a board game and I'm sending status messages back to the user with this wrapper function I created for Toast:
CODE:...........
The problem is I've made the flow of game play so simple I can now play it so fast Toast messages queue up, even to the point where they continue to show on the desktop after I quit out of the game. t.cancel() doesn't seem to cancel out the previous message, anyone know what I might be doing wrong?
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Feb 8, 2010
When using setDuration for a Toast is it possible to set a custom length or at least something longer than Toast.LENGTH_LONG?
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Sep 27, 2010
When using torrent-fu, does the computer (doing the downloading) have to be on? Or can I just use torrent-fu to find torrents when I'm at work, queue them up, and when I get home turn the computer on and it'll start the downloads?
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May 5, 2010
I need to store a queue into a DB. I need to be able to insert at the head, and append at the tail. I also need to remove items from the head.
Each item is just a string. I need to maintain a todo list -- high priority items are added to the beginning of the queue. and low priority items are append to the end.
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Oct 7, 2010
I am queuing up a bunch of runnables into a thread via a Handler.post(). I would like the ability to send a note to that thread that it should pause. By pause I mean, finish the runnable or message you are currently working on, but don't go to the next message or runnable in your message queue until I tell you to continue.
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Sep 29, 2010
Is it possible, with an IntentService, to send another intent to the IntentService from within the IntentService? For example, say my IntentService is processing an Intent which has it write a bunch of data to the database. During this time, several other Intents to write other data may [or may not] have been queued up in the IntentService. Suppose, after processing that Intent by writing the data to the application's database, I want to queue up another Intent to send that data via web service to "the cloud." Perhaps I want to queue this processing in another Intent because sending to the cloud is secondary. Is it possible? Would it cause any problems if the Intent being processed is the only Intent in the queue at the time the IntentService is trying to queue another Intent?
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Nov 14, 2009
How can I tell what has and has not bee downloaded? I see options to add to my download queue subscribe...but no option to see what's in the queue or manage what's been downloaded.
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Jun 12, 2010
I read somewhere (and have observed) that starting threads is slow. I always assumed that AsyncTask created and reused a single thread because it required being started inside the UI thread.The following (anonymized) code is called from a ListAdapter's getView method to load images asynchronously. It works well until the user moves the list quickly, and then it becomes "janky".final File imageFile = new File(getCacheDir().getPath() + "/img/" + p.image);image.setVisibility(View.GONE);view.findViewById(R.id.imageLoading).setVisibility(View.VISIBLE);
(new AsyncTask<Void, Void, Bitmap>() {
@Override
protected Bitmap doInBackground(Void... params) {
try {Bitmap image;
if (!imageFile.exists() || imageFile.length() == 0) {
image = BitmapFactory.decodeStream(new URL(
"http://example.com/images/"
+ p.image).openStream());
image.compress(Bitmap.CompressFormat.JPEG, 85,
new FileOutputStream(imageFile));
image.recycle();
}image = BitmapFactory.decodeFile(imageFile.getPath(),
bitmapOptions);
return image;
} catch (MalformedURLException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
return null;
} catch (IOException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
return null;
@Override
protected void onPostExecute(Bitmap image) {
if (view.getTag() != p) // The view was recycled.
return;
view.findViewById(R.id.imageLoading).setVisibility(
View.GONE);
view.findViewById(R.id.image)
.setVisibility(View.VISIBLE);
((ImageView) view.findViewById(R.id.image))
.setImageBitmap(image);
}}).execute();I'm thinking that a queue-based method would work better, but I'm wondering if there is one or if I should attempt to create my own implementation.
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Mar 30, 2010
I'm writing unit tests for a ListActivity in Android that uses a handler to update a ListAdapter. While my activity works in the Android emulator, running the same code in a unit test doesn't update my adapter: calls to sendEmptyMessage do not call handleMessage in my activity's Handler. How do I get my ActivityUnitTestCase to sync with the MessageQueue thread and call my Handler?
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Sep 11, 2009
I decided to start pipelining input to increase responsiveness in my games. Basically what I do is when the activity receives a Key or Motion event, it sends it to a feed method in the game, which encapsulates it with a time and whatever else I need and puts it in a queue then immediately returns so the UI loop is never held up waiting for long. The main loop later processes the queue, applying the events in it at the appropriate times.
This works great and makes the games snappy, although now I'm starting to miss touch events intermittently. I realized that the events could be recycled objects and that could make them not safe to queue. Is this the case or is it safe to queue them for deferred processing like I'm doing?
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Sep 6, 2010
I was curious about the nature of the handleMessage() and sendMessage() behavior of the Handler class. I want to be able to send message to another thread in such a way that the destination thread can process the message queue when it wants to. It seems, however, that the message is processed by handleMessage() practically as soon as it's sent.
I'm trying to design a game loop thread that does something like this:
CODE:.....
However, I as soon as sendMessage() is called (from the parent/calling thread), the Handler.handleMessage() is processed (in the child/receiving thread), even if the child/receiving thread is blocking in a while loop.
I've seen this problem solved in other games by using a thread-safe list (ConcurrentLinkedQueue). The UI thread just posts events to this queue, and the game loop can remove the events as it seems fit. I just assumed the Handler class was designed for this purpose. It seems it's more intended for asynchronous callbacks to the parent thread.
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Nov 11, 2010
I am trying to connect to a MSMQ from an Android phone. The problem is that all the libraries that I seem to find have to run in Windows since they appear to just be wrappers around C libraries ("DLL"). I found J-Integra but it seems like a very messy non-open source solution. Anybody has any ideas? And does anybody know of a server in linux to host queues that I can install for testing?
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Sep 11, 2010
By the above code i am able to get the Toast. Instead of Toast I want the Dialog to be appear after the alarm is set. Also I want to play the sound.
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Jan 11, 2010
I have a service that runs in the background. I´d like to be able to show a message to the user when there is an incomming call. Atm i´m using a Toast, because as far as I know it is the only way to display something regardless of the current activity the user is running. But I have seen apps that can show entire views on top of others activities. How can this be done?
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Sep 23, 2010
Is there anyway I can tell a Toast Notification to show up only for a specified amount of time. Generally shorter then a regular toast message.
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May 5, 2010
I have a listview in my Android Application. Now, when the user presses Next Button other contents will be loaded into the listview. What I want is that if there are no more contents available then there should be a toast displayed indicating that there are no more data available.
Say, for example I have a total of 55 data available and I am displaying only 30 of them in one listview. So, when the user presses Next for the first time next 25 records will be visible. If the user again presses the Next button then a toast should be displayed on top of the last listview that had last 25 records.
Currently I get an error as IndexOutOfBoundException : Invalid location 15 size is 1.
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Oct 30, 2010
I create a user-defined toast,and i want to get the xml of layout from the layout package,but if i used the code below,there comes a problem:InflateException,i had used many ways to get the layout but fail.the code is below.
CODE:.............
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Aug 28, 2010
My user hits a button and kicks off a process that takes 3 steps in about 10 seconds total. I'd like to pop up Toast messages "Step 1", "Step 2", "Step 3", "Finished!" as the process progresses. I'm using the standard Java Thread interface to run the process in a thread and I've found that trying to pop up Toast from the thread causes an FC. What is the best way to report this kind of progress - step by step messages?
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Aug 6, 2010
Ok, I've tried two examples of AlarmManager- one from the commonsware website, and one from the manning website. The code I am currently working with is from the manning website : [http://unlocking-android.googlecode.com/svn/chapter8/trunk/SimpleAlarm/][1] There are two classes, AlarmReceiver and GenerateAlarm. Anyone have any idea why the toast will not display in the emulator? I was thinking that it was because I am located in the Eastern Time Zone and it uses UTC, but I have fiddled with different things and none of them seem to work.
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Aug 12, 2010
I have a Activity called main. If I call Toast.makeText(this, "Hello World from main", Toast.LENGTH_SHORT); this works fine. However, for every other activity in my application, I cannot display a Toast. No exception, nothing in the Log but I don't see the Toast. Code...
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Sep 24, 2010
I am writing my own SMS application that will display a toast of my message once it arrive. Now is it possible to delete the message after the display of the toast, so that it will not go into the native SMS application?
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Mar 11, 2009
Using android.widget.Toast one can created floating view over the application. I would like to created similar view which will float on top of all running applications at a specified location.
I tried to created activity by setting android:windowIsFloating ="true" , but didn't worked out.
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Aug 11, 2010
I run service in the background I want to use Toast.makeText display message to run Activity.but I don't know Activity context I know Activity packageName and className.What should I do?
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Aug 5, 2010
I have a service class written which gives notification(Toast dialog) on every life cycle method call back. when i run my application all works well. but when run this service class from my test project the toast message are not displayed.
It give the following log for the toast message
CODE:.............
I want that the toast message should also be displayed on subsequent calls to life cycle methods
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Sep 14, 2010
I tried to update my mapactivity with toast as the sensor data changes.
However, my first Toast appears and it never change despite detecting changes in sensor values.
What could be the reason?
Below is the snippet of my SensorListener:
CODE:................
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Jun 11, 2010
I have an IntentService that handles button callbacks from a widget. When the user presses a certain button, I want to display a Toast. I return from onHandleIntent almost immediately after doing Toast.show(), which in turn stops the service and kills its thread, which keeps the Toast from actually being displayed.
Can anyone suggest an easy way to get the Toast (or something similar) to display from an IntentService?
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Nov 4, 2009
I am slowly trying to figure out maps... I want to be able to click on a point and pop up a message. Toast seemed the way to go. So I added an "onTap" handler in my class that extends ItemizedOverlay (the class is called HelloItemizedOverlay) and then tried to grab the Toast example... But I am seeing Eclipse tell me that the line is in error no matter what I do...
My code is below:
CODE:..................
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Sep 14, 2010
Been trying to find out what is the bookmark id the user clicked on...Tried everything, many force closes... and now an empty toast (no error marks in eclipse):
CODE:......
ImageCursorAdapter is another class showing bookmarks favicon and title (it works).
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Nov 19, 2010
In my application I've implemented such that pressing the hardware volume keys displays a Toast with the current volume. Things go well most of the times. However long presses of the volume keys do succeed in crashing my application. The Log generated on crash is the following...
The approach I follow:
I have a toast Object and for every key press event detected I inflate a view ,set the view elements within, set it to the toast and then show the toast.
Any idea what is going wrong ? code...
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Aug 19, 2010
If there was a way to display all text in a toast to be centered. For instance, I have a toast that has 2 lines of text in it. For purely aesthetic reasons, I would like the text to center-aligned instead of left-aligned. I've looked through the documentation and can't find anything about it. Is there a simple way to do this that I have missed?
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