Android :: During Refresh Operation - Show ProgressDialog Which Actually Is Never Visible
Mar 24, 2009
I know that this is common problem, but still I cannot find the answer. I have two classes: InternetConnection extends Activity ConnectionChangeReceiver extends BroadcastReceiver
From ConnectionChangeReceiver I'm calling InternetConnection method which is refreshing UI when Internet connection is changed. The problem is that during refresh operation I'd like to show ProgressDialog which actually is never visible !!
So broadcast class looks like: public class ConnectionChangeReceiver extends BroadcastReceiver. Code...
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Jun 17, 2010
I try to show a ProgressDialog at the beginning of my application from an Activity. I debug the application and in theory the dialog is created because it prints a line from onCreateDialog... method.
For more test, I try to show a toast with:
Toast.makeText(MyActivity.this, "test", Toast.LENGTH_LONG);
And nothing is showed.
If is useful, the application is a widget.
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Oct 12, 2009
I'm starting a ProgressDialog using:
ProgressDialog.show(Example.this, " " , " Loading. Please wait ... ", true,true);
Then running a block of code to download and parse XML.
The problem I'm having is that this is all running under a onClick button method, and that the xml is downloaded and parsed before the dialog is shown.
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May 9, 2010
I'm trying to create a ProgressDialog for an Android-App (just a simple one showing the user that stuff is happening, no buttons or anything) but I can't get it right. I've been through forums and tutorials as well as the Sample-Code that comes with the SDK, but to no avail.
This is what I got:
CODE:..........
I've also tried adding pd.show(); and messed around with the parameter in new ProgressDialog resulting in nothing at all (except errors that the chosen parameter won't work), meaning: the ProgressDialog won't ever show up. The app just keeps running as if I never added the dialog.
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Feb 18, 2010
I have a listview of items (songs on the sd card). The user has an option to load all the songs on the sd card to into a current playlist -- those songs are what is displayed in the listview. Because this can take few seconds to load if they have a lot of songs on the card, I want to display a progress dialog to just tell the user "One moment..." until the list refresh is done.
I launch a thread to do this. I've done this successfully on another app I have (which just updates a database in the background but doesn't update any display), but this one fails with this error message, "Can't create handler inside thread that has not called Looper.prepare()". I chopped down the activity and pasted it below. What am I doing wrong here? I have just a vague idea of what might be happening.
By the way, everything works when I take out the threaded stuff, it just looks like the app freezes for a couple seconds.
code:..............
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Feb 17, 2010
When i first launch my main intent, i check if the application was updated and, if yes, i decompress some asset files. This task can take up to 15 seconds (to decompress a 6MB zip file).
So, i was trying to show a ProgressDialog to the user. However, nothing in hell makes the dialog appear.
The lengthy method is called from onCreate. I already tried to put it in onStart, but same thing. I also tried to run it in the ui thread, same thing: no dialog appears, even if "isShowing" returns true.
This is the code:.......................
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Sep 22, 2009
I have some code in my program that processes some stuff, and takes a few seconds. So I thought logically I can place my dialog show at the beginning before processing begins, and cancel it at the end. What ACTUALLY seems to be happening is my dialog shows after the processing is done... Some demo code to show what I mean with a simple sleep:
CODE:.................
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Jun 28, 2010
What is wrong with this code:-
CODE..................
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Aug 13, 2010
I'm writing an Activity which fetches some XML from the web via HTTP and then parses it into a DOM. It then pulls some required data from the DOM.
As you can imagine, this takes a few moments, so I put that code into it's own thread and then tried to set up a ProgressDialog to display while the user is waiting for that to complete.
The problem is that the ProgressDialog doesn't display at all. If I remove the call to dismiss() then it displays after the work is done and, obviously, just sits there...
Here is my code:..................
The constructor of the FighterVersesDownloader is where all the work in terms of HTTP and DOM is done.
Any ideas on what I'm missing? I've seen a few similar threads on this using AsyncTask, but I wanted to use good old fashioned Threads directly and the solutions suggested don't apply.
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Oct 13, 2009
I can't seem to grasp why this is happening.
This code:...................
Throws the following exception:
CODE:...........
I'm calling this from the onCreate method.
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Jul 1, 2010
Im trying to show a ProgressDialog while the activity is loading. my problem is that although i completed all the work in the activity. it takes a long time for the activity to load, i suspect this is because i use
multiple views with multiple listviews with custom array adapters inside a viewflipper. it takes a long time for the UI to show.how would i go about checking that all the UI inside the activity finished loading? or is there a way to preload all the activity and the UI?
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Oct 8, 2010
I am developing my first Android App and I need a ProgressDialog to be showed while a background task, in this case just a http call on the server, happens.
I did a bit of studying on this and also have already checked other threads related to this subject.
http://developer.android.com/reference/android/os/AsyncTask.html
[url]
[url]
[url]
Among others.
Than I got to write a bit of code:
1) In My Activity I declare a variable to be of type ProgressDialog
code:............
2) I have also written an inner class to extend AsyncTask as required, here in the doInBackGround is where I call a static method which actually do the POST http request to the server, in the server side I have blocked the server response 20s to validate the progress dialog.
code:............
3) When the button is pressed I than build the ProgressDialog anc call the AsyncTask I have created:
code:...................
Well, this is it, I believe this was suppose to show a progress dialog while the AsyncTask would query the server in background, but what I get is NO progress bar until server response arrives and than for a fraction of time(less than 1 second) the progress shows and the next Activity is called.
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Dec 25, 2009
ProgressDialog during location tasks either won't show or force closes - I have tried everything!
I now have it in a Handler with a full 1 second delay (one method another post suggested) but it doesn't show. I simply am stuck. Threads are usually force closing when I use those methods.
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Jun 3, 2009
I have code in my activity's onCreate that sets an onItemClick listener. when it fires I try to show a ProgressDialog that will be up until a subsequent thread "Thread" does it's processing. Strangely to me, the progress dialog never shows until *after* the thread.run() processing is complete. Almost like it's blocking. Am I doing something wrong? this is true even if the run method of doCurrentLocation doesn't do anything.
CODE:.................
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Sep 21, 2009
When i ran my old application in 1.6 i noticed that the progress bar was not showing up on the screen.When i analyzed it further i found the issue.The progress bar is getting activated but its not visible since my background color is also white.When i changed the background color i was able to see the progress bar.Is there no other way to make the progress bar visible other than changing the background color..Shouldn't the progress bar be visible under all background colors??
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May 3, 2010
After implementing some Android Apps, including several Map activities, I try to refresh the activity when the GPS listener's onLocationChanged() mehtod is called. I have no idea how to tell the map activity to refresh on its own and display the new coords. the coords to store will have to be in global values, so that the location listener will have access to it. In my sample GPS-class (see code below) I just changed the text of a text view....but how to do that in map view?
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Oct 19, 2011
It seems for the last couple months i always have to do manual refresh on my inbox to get my emails to show up in my inbox. ADR6400L
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Jan 19, 2009
I wish to add a new operation to the contact detail view page under the current set of operations for a mobile number (Dial, Send SMS/MMS, ...), such as "Send a file". For my custom activity, what action and category would I specify so that my new operation appears in the contact detail view page? The end result would look like this (apologies for dodgy ascii art): ...........
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May 1, 2009
what is a good way to signal an error from a thread that is not the UI thread and you don't know which activity/handler is currently active? Can I somehow get eleto the current UI thread? Can I somehow use the MainLooper from the application context? I use notification for serious events where the user needs to take action, e.g. a login failed, but here I am looking for a transient notification with a toast and it would be ok if the toast is not seen in some cases.
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Sep 11, 2010
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nexus 2.2, device connects via wifi port not blocked datagram send works from android 1.5 moto blur.
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Nov 2, 2010
I am reading one simple web page, but when I launched my application after 2-3 min it show me output as: The operation timed out. Here ia my code...........
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Aug 13, 2009
in my app, I came into an Activity from the pre Activity's UI (such as:click a TextView which has added OnClickListener), like this way, after several times, I came into a deeper Activity. I left it for a while (such as left away) , when I came back ,I returned the Activity before the last Activity. then I got a black screen.
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Jul 6, 2010
I am trying to use Wi-Fi Adhoc Mode in my application. But I could not find any API or method to set the same. I read a thread in Android Forum and could not come any concrete solution on how to use enable Adhoc mode in Android.I used to use WPA_Supplicant conf file in Linux to enable Adhoc mode.
I would like know if I can enable Wi-Fi Adhoc mode in Android from my application and how to do the same.
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Sep 29, 2009
There is a big database(15M) in my application, it is too big to download the apk if I publish the source database in myapp.apk. So I encode the db to binary files(300k). But the new problem is I should decode binary files and create the database(with data), this procedure take about several minutes, so I can NOT do this in SQLiteOpenHelper.onCreate(), this is too slow for user experience(though it is a one time procedure, it is still unacceptable).
My application has NO main activity entry in launcher, the main entry is Broadcast Receiver.on Receive, the information should display to user immediately when receiving the broadcast, so I have no chance to display a several minutes "Initializing, please waiting..." UI. The best chance to create database and init data immediately after install, but how to do this, is there any broadcast? or is there any AndroidManifest attribute?
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Oct 16, 2010
I just tried to implement a progressdialog and I have some issues to change the text during my long and complex calculations.
CODE:..........
I can clearly see the incrementProgressBy working and my dialog updating, but the message does not change.
Any idea on how to make that work?
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Mar 7, 2010
I have a context menu option that, when clicked, will load some information from the web and insert it into a database.So this is a lengthy process and I would like to display a progressdialog over the top of the context menu when this option is selected.I've got the progressdialog running now, but it won't show up.It's almost like the context menu is covering it.So is there a way that I could get the progressdialog to show up on top of the context menu and be visible to the user.
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Jul 30, 2010
I try to call inside onCreate() it is ok but not onClick(). How to make it work?
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Sep 20, 2010
How should I handle an active ProgressDialog when the screen is rotated? Perhaps I should cancel the dialog in onDestroy and restart it in response to a SavedInstanceState flag?
I'm getting an exception and the following message in logcat:
CODE:..............
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Apr 22, 2010
I have the standard ProgressDialog displayed during a lengthy operation. How can I make this ProgressDialog to occupy the entire screen (make it full screen)?
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May 9, 2010
I was following the progress dialog example in the ApiDemos. all went great except for one thing - I want to remove the numbers that appear underneath the bar (those running numbers that run from 0 to .getMax().
couldn't find how to do it.
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