Android :: Display Progress Of Service In Android?
Jul 27, 2010
In my android application, I am using the tab view and so I have two tabs: parameters and results. the user enters the various parameters on the first tab and then switches to the second tab to view the results. i have a service that performs some long-running calculations. the user enters parameters on the first tab and hits 'calculate'. They can make adjustments and hit 'recalculate' and the service is updated with the new parameters.
As these calculations progress, I want the user to be able to switch to the results tab to view the results of the latest calculation. They would then view the results and be able to switch back to the parameters tab to make adjustments. I can think of two approaches: register the 'results tab' with the service and when the service reaches a milestone, it calls directly to the 'results tab'. have a timer running in the 'results tab' and have it query against the bound service on a regular interval and update accordingly.
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Oct 30, 2010
I am dispalying some data by using sqlite .when i click on one button data come from database. It takes some time. At that time the screen is black .At that time I want to display the rotating spinner before the data dispaly.
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Jun 8, 2009
Is there a way to display the percentage% of the progress on the bar? Simple write something on the bar in the new SDK? I have searched everywhere for a sample code...
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Oct 8, 2010
Is there anyway to display a progress while downloading a file from ftp in order to show the download progress status?
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Aug 11, 2010
I need to display progress icon in button so that user can interact other GUI elements while background task is processing. I have searched in Android developer site and found that we can use animated drawables but don't know how to use them.
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Mar 24, 2010
This may be a simple question but i am a beginner ,i need your suggestion on this. i have two Activities A1 and A2 .When i click the image on A1 screen i have to display progress bar until A2 screen appears(A2 activity has huge task to do).
I tried:
CODE:...............
This couldn't display progress bar .I know that i am making a mistake but i couldn't figure out.
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Jan 2, 2010
I have a service that downloads something from the Internet, it shows progress in notifications and in MyActivity (only when MyActivity is on foreground of course). How should the service post the progress to MyActivity? I know this could be done somehow with IBind but can I just simply do this in MyActivity:
MySevice.myActivity = this; startService(new Intent(....));
From MyService I can now call MyActivity's methods because I have a static reference to it in MySevice.myActivity, so I can call e.g. myActivity.sendProgress(63).
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May 16, 2010
An application I'm building uses a local Service for downloading files from the web to the phone's SD card. In this app users can browse lists of books, and read them while online. A user can also download a pdf copy of a book for offline viewing. To handle downloads I'm using a locally bound Service. I do not want this Service to run all the time, only when downloading files. So that the Service can shut itself down when its tasks are complete, I am not binding to the service, rather I'm sending an "enqueue for download" command through the Intent passed to Context.startService.
Books available for download are shown in a list. A user can choose to download a book by clicking on its row in the list. On download, I need to show download progress using a ProgressBar on the actual book list row. I need to also show, on the rows, if a book is enqueued for download, or if its download has completed or failed. The books can be shown in different activities throughout the application--in search, or in the user's list of favorite books, for example. When the books are shown in different places, these are not the same objects, but they are uniquely identified by their bookId...............
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Dec 28, 2009
this is the current state/situation: I have an Activity which binds a Service which creates AsyncTasks which downloads various web resources. That works well, but of course the ProgressBar shows nothing. Previously i had an Activity which created an AsyncTask which downloaded some stuff. The AsyncTask got the View which holds the ProgressBar. So i could update the progress using onProgressUpdate and publishProgress. Obviously this doesn't work any longer because I have no reference to the ProgressBar.
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Apr 28, 2010
I like to do some long running initializing work in a remote service, and during that, a progress dialog shall be shown. So basicly, I invoke ProgressDialog.show, run a oneway method of the service with a callback to be invoked when it's finished, and in the callback dismiss the dialog. I expected the service method to work in it's own process while the activity shows the progress dialog. But what happens instead (according to debugger and logs) is: ProgressDialog.show and service method invocation return immediately, then the service method is processed, and finally the progress dialog is shown for a few milliseconds right before it's dismissed. Even a "not responding" error might occur during that. If I invoke the service method in an own thread, which (as it's to be expected) is finished long before the service method is done, everything works fine. But I don't get why this is necessary. Why does a remote service method block the Activity thread? This even happens if the service method only does a Handler.post and returns immediately.
Simplyfied code overview: Activity: public void onStart() { startService(...); bindService(...);}
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Nov 19, 2010
I'm writing a function to download file:
URL _url = new URL("http://kevin95800.free.fr/Music/Jay%20Sean%20-%20Down%20(ft.%20Lil%20Wayne).mp3");
URLConnection conn = _url.openConnection();
conn.connect();
throw new RuntimeException("stream is null");}
byte buf[] = new byte[128];
do
{int numread = is.read(buf);Log.i("html2" , numread+" ");
if(numread <=0)
break;
fos.write(buf , 0 , numread);}while(true);.close();
My question is , how do i know the total byte of the file i'm downloading? because , i wanna display the downloading progress. could someone teach me
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Nov 20, 2010
I have created a activity and set a the title bar to contain a progress bar like this: this.requestWindowFeature(Window.FEATURE_PROGRESS);getWindow().setFeatureInt(Window.FEATURE_PROGRESS, 500);But it turns out to be a horizontal bar, how can I make this a spin bar? (without creating a custom title bar)
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Feb 8, 2010
Why can't I use the Context of a Service to display an AlertDialog ?
I can do it with Toast!
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Sep 28, 2010
I have issue with displaying AlertDialog from Service. I am able to display custom layout window using Toast or using WindowManager(TYPE_SYSTEM_ALERT or TYPE_SYSTEM_OVERLAY). But, I do not want to use custom layout, I prefer to use nice AlertDialog GUI directly.
Scenario:
Running Service. No active Activity present. On some external event, Service sends Notification
When user press Notification, Service is informed via PendingIntent and AlertDialog should be displayed (created with AlertDialog.Builder(this))
Error: ERROR/AndroidRuntime(1063): Caused by: android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application. Searching for the answer lead me to impression that I am trying something that is currently not possible (Android 2.2). Or maybe it is.
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Aug 30, 2010
How do i display dialog from a service ?
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Sep 9, 2010
We are working on a project where image data is coming from web service and we need to display that image bitmap data in our phones, the images could have more than 500, so when we download data form webservice and displaying then in gallery with converting image data into bitmap, outofmemory error is coming and program crashes.
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Sep 24, 2012
I have two list view which is display data from the web service.
List 1 -- with different background
List 2 -- with different background
I have two ArrayAdapter<String> to handle the values. I have issue in the display. my xml file is structured as
<Linear Layout>
<ListView> </ListView>
<ListView> </ListView>
<Linear Layout>
its displays the two list items by dividing the screen into two equal parts and scrolls within the list individually.
I wanted the List 1 to be displayed fully and then followed by List 2 and also it should screen should be scroll not with in the list but full screen so that List 2 could be seen below.
i tired many ways but still the results are not fine.
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Jan 7, 2010
I'm using an horizontal progress bar in my Android application, and I want to change its progress color (which is Yellow by default). How can I do it using code (not XML)?
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Feb 24, 2010
I don't know how to position the progress dialog(the one with the rotating image). When my application starts its display an full screen image and a progress dialog box. I need to moved the progress dialog box a little lower.
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May 4, 2010
Is it possible to disable title bar display dynamically after setting the content view by setting the NoTitlebar theme?
All the posts I have read told that any title bar changes we can make only before setContentView() call.
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Sep 20, 2010
I am facing one problem in message view. Bacically what I need to do is in message view I want to mark any telephone number or web address in different color. Can anyone please tell me where exactly the text is been written in Message View? On clicking this items it should launch appropriate event. If anyone touches a telephone number it should launch the dialer or if it is a valid email address then it should launch the Compose message event and so on.
Another question is whether to display message is Android uses the WebView?
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Jun 24, 2009
I have a service running in the background.I have a background thread that gets a reference to the service from the application's main activity. But when the background thread calls a method in the service to display a toast, I get the "Looper not initialized exception".Why,if I have a valid, bound reference to a Service, does this still happen?
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Aug 20, 2009
I am getting following message when i try to launch service.Also is there any specific path on file system where we need to place the .apk file which contains my serivce component only.
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Jul 22, 2010
I am trying to run the sample soft keyboard included in the SDK. I am using the debugger, and the literature says that to use a breakpoint while debugging a SERVICE, I need to include:
android.os.Debug.waitForDebugger();
So here is the portion of the code I modified:
CODE:...........
I have put a couple of breakpoints, at the statements indicated by the comments.
This is what happens: the debugger first stops at the breakpoint1, for a few seconds. But then the service restarts. For the life of me I can't figure out what makes the service to restart.
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Jul 16, 2010
I am developing an Android app which needs to poll a specific webpage in time intervals. I've got it to the point where it does indeed poll the page on a specific interval, and that interval is specified in a SharedPreference which can be changed by the user in the settings page of the app. But complications arise when network connectivity is flaky.For example, how do I ensure that the Service "wakes up" the network adapter and gives it ample time to connect before polling the page, in the case that the phone was sleeping to save power? This polling action can happen as little as once every 24 hours, so I don't want to miss one action just because the network was out (but turned on a few seconds, minutes, or even hours later).
Or there are times when the web service doesn't respond, or DNS doesn't respond, or what have you, and for any reason it doesn't get a response even though the phone is technically connected. What sort of rule do I put in place to make this retry later, so that I'm not retrying repeatedly when the user specifically turned off their internet but I'm retrying soon enough that if it was just a hiccup, the data can be received soon after the first try?Are there any examples for this type of situation? What is the logic to best handle this?
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Mar 1, 2009
My service works exactly the way i want as long as i use start and stop and communicate using intents. However my activity needs to change the state of my service as well as retrieving state information.So i thought it would be nice to broadcast some kind of state_changed event from my service and use a binder interface to pull information from the service or change the services state based on user input.This works fine too. The only problem is that my service gets killed when i unbind it just as the documentation says.Is there any way to keep the service alive but still get an interface to control it directly. My activity offers the user a way to stop the service and the service kills itself anyway after it's work is done but i don't want the service to stop every time the activity is destroyed.
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Sep 29, 2010
I have an issue with displaying videos on android devices.When any video is displayed it does not take the entire screen size of device even though i have given android:layout_width="fill_parent".There will being some blank space on either sides.for eg.if i have a video of 480 by 320 it will work on 480 by 320 device fine but on a device like say Nexus one it wont take the entire display of device ,there will be some blanl spaces on two sides. Is this a default feature of android devices or is there a solution to resolve this ?Why does not the "fill_parent" attribute work?
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Jun 3, 2010
I am writing a media player and i would like to have a progress bar showing the progress of the song. I found the ProgressBar class, but all i can get on the screen is a circular spinning icon. what im looking for is an actual bar.
How do i change the style of the ProgressBar to be a bar (not a circle) and how would i use it with MediaPlayer?
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May 28, 2010
I'm developing a GPS tracking software on android. I need IPC to control the service from different activities. So I decide to develop a remote service with AIDL.This wasn't a big problem but now it's always running into the methods of the interface and not into those of my service class. Maybe someone could help me?If i now try to call a method from an activity for example start(trackId) nothing happens. The binding is OK. When debugging it always runs into the startTracking() in the generated ITrackingServiceRemote.java file and not into my TrackingService class. Where is the problem? I can't find anything wrong.
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Nov 9, 2010
I'm confused about whether I need to run my service in a separate process. What are the advantages / disadvantages of each?For reference I'm trying to create an App that uses a service to play [streaming] audio in the background. So which one is better for my use case?
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