I've a piece of code that launches an Intent. I'm wondering if there's any way to get return codes and/or catch exceptions? The particular scenario I'm facing is when I launch an Intent passing a 'rtsp' URL but it turns out the URL isn't available.
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In my application I would like to catch all exceptions globally - it should not matter, where those exceptions occur. Some runtime exceptions are practically impossible to catch (OutOfMemoryError for instance), but I want to show an informative dialog and resume execution at some well-defined point (main menu activity or something).
Using Thread.setDefaultUncaughtExceptionHandler() does this for background threads, but it is of no help in the UI thread (or adjacent handlers). If an exception occurs in the UI thread, the UI will be jammed - not reacting to any key or touch events anymore. Of course, this seems natural since it did not catch that exception; but I wonder if there is a way to recover the UI thread. So:
- Can I recover / restart the UI thread after an uncaught exception (from another thread) ?
- Is there another way to catch uncaught exceptions globally ?
- Are there viable alternatives to handle this problem ?
I have the following code...
CODE:.................
My mClient get method is a simple HttpClient execute with an output buffer to read the input stream, so it's very trivial. Everytime I execute this task UnknownHostException will be triggered which will in turn call onTaskError on my currect Activity, but I still get a RuntimeException, but I don't see why. Maybe it's because it's late and i've done about 12 hours of writing code so it's something simple I just can't see?
I noticed that a toast isn't displayed when it's used inside a catch block.
Does anyone know how to show toasts when catching exceptions?
Has anyone found a way to catch outgoing calls from the Htc Hero Dialer?I currently use the NEW_OUTGOING_CALL intent in my app and this works for the standard Android dialer but not for the Htc Hero one.The hero dialer seems to not fire that specific intent.Is there any other way to achieve this?
View 2 Replies View RelatedThe JavaDoc of Context's public abstract void startActivity (Intent intent) said:
This method throws ActivityNotFoundException if there was no Activity found to run the given Intent.
But when I look at the android source code, it does not catch ActivityNotFoundException.
For example in AlarmClock.java:
CODE:..................
what is the code which handles the case when there is no activity for that intent?
I'm trying to catch an action like ACTION_HEADSET_PLUG. But I think it might be too much to set this action on the manifest file.
How could I register a listener for this action? I only need to care about it when my application is running not all the time as I think it would happen when registering it under the manifest file...
I have an application that open an other class using intent :
CODE:.........
In Repository.class we have the onActivityResult method :
CODE:...................
I don't know how I can return the value of num to the first class (that create Repository.class).
I use the standard Picasa upload activity in my application to send images to the user Picasa account, but everytime the Picasa activity returns in my onActivityResult function the return code is RESULT_CANCELED, no matter if I cancel the upload, press the back button or correctly upload the image, always RESULT_CANCELED, can someone confirm this? I need to check if the user correctly started to upload the image. code...
View 2 Replies View Relatedokay so with the x coming up to order soon im going to be paying full retail for the x since I sold my dinc and when I ordered that onlline i used promo code freeovernt for the free over nite shipping..but i also bout a week later called for a credit and used promo code smart30 to save 30 bucks on ordering a smartphone upgrade. question is does anyone else know of any coupon or promo codes for this thursday? need my droid X!
View 30 Replies View RelatedI am trying to write a code about catch lat. and long. points with the GPS, actually I am using the shell with the commands "geo fix" because the DDMS doesn't work in linux apparently, I am using this scripts:
getBestProvider(criteria, true); getLastKnownLocation(provider); requestLocationUpdates(provider, 2000, 10, locationListener);
The questions is: the program is working right now in the emulator, but what about if I move the program to the real cellphone? Is the same? I need think in something else?
I am (supposedly) catching NullPointerException and returning 0 if that happens. But occasionally I get NullPointerException failure anyway. Is catching it this way no enough to prevent this failure?
private char getCharBehindCursor (int offset){ // get a single char behind cursor + offsett CharSequence cSeq; InputConnection inputConnection = getCurrentInputConnection(); if (inputConnection != null){ try { cSeq = inputConnection.getTextBeforeCursor (offset + 1, 0); } catch (NullPointerException npe) { /* failure*/ return (char)0; }
if (cSeq.length() == offset+1){ return cSeq.charAt(0); } } return (char)0;
I have tried all day to capture a trackball event in a View. Basically I want to use the trackball to move a Sprite in a 2D game left and right. The onTouchEvent works perfectly well in the View to move the Sprite with my finger but it would be nicer and cleaner to use the trackball.Can anyone provide me with a simple example that uses the trackball to move something in a View in a 2D type game world (not a menu or UI type of example)? Or can someone explain what I'm not doing. Thanks so much for any help you can give me.
View 3 Replies View RelatedI've got this problem: When my program using too much memory, it die. Is there an exception or something else to warn me? How can I catch it?
View 11 Replies View RelatedI am getting an outofmemory error (java.lang.outofmememoryerror) from a bitmapfactory that doesn't seem to be caught despite the fact that it is in a try{ }catch block. Can I catch this error somehow or is it outofmemory inherently uncatchable?
View 9 Replies View RelatedI want my app to catch downloads of a particular kind of file.
Here's the corresponding part of AndroidManifest.xml:
CODE:............
Now, open a page with a link to an .exe file, click it. The download manager starts and then tells that The content is not supported on the phone. My activity doesn't even get called.
The questions are:
1) Why doesn't my activity get called?
2) What's the correct way of letting download manager do it's job and then get notified upon file download completion?
I want to listen the android standard exceptions to manage it. But I don't put try/cath in all my code. Anyone knows if i can redirect the error output to my code. I've seen this System.setErr method, but It doens't works for this purpouse.
View 2 Replies View Relatedwhen I call web service from my machine using 'localhost' or 127.0.0.1 , I got exception. But if I give the public IP, it works fine. Why it is happening?And also, If I use my public IP, I can't access web service. But If I put the same code in another machine, and call that web service using the IP address of that machine, It works fine.
View 2 Replies View RelatedI'm a novice Android programmer, and to help me understand how Intents really work, I wanted to put together a small Activity which would let the user call startActivity() with any action and data they want. I tried many different combinations, including "android.intent.action.VIEW" and "http://www.google.com". No matter what combinations I use, I always get an ActivityNotFoundException. Any ideas as to why?
The code in my only Activity is below....
I love the feature where we can inspect any exceptions for app's published on the market through the developer site but curious as to whether we can tap into this feature for app's we don't publish to the market so we can email any exception details to a specific email address for example.
View 3 Replies View RelatedI am trying to intercept xml links that are clicked in the android web browser. I want my activity to handle these xml files, however I cannot seem to get this to work. Whenever I click on the xml file in the browser it just displays the xml file.Here is the entry that I have in my AndroidManifest.xml. Is this enough or do I need to do something more?
View 2 Replies View RelatedDoes anyone know how to print stack traces for exceptions caught while running in the Android emulator in Eclipse? I catch the exception and call .printStackTrace() but I cannot find where it is being written. I have tried .printStackTrace(System.out) and .printStackTrace(System.err). I would be nice to be able to direct them to the Eclipse console.
View 2 Replies View RelatedI have this simple HTML that I load into an Android WebView (SDK version 1.5)-
<html>
<body onload="nomethod()">
<h1>Hello World</h1>
</body>
</html>
Function nomethod() doesn't exist but the LogCat doesn't display any error. It seems that any exception that isn't caught cannot be traced. how can I handle or trace uncaught exceptions?
I am new to Android mobile application development.I would like to know , how can I handle the exception , like HttpConnection related exceptions or any other exceptions.Do I need to display an AlertDialog to the user.Kindly provide a sample code or project source code on how can I handle HttpConnection or similar type of Exceptions.
View 1 Replies View RelatedIf I need to return my phone before the 30 days are up and they are out of stock, will they still honor the return policy and just call you when they have one available or will you have to stick with the phone that you have?
View 5 Replies View RelatedIn the Eclipse log I can clearly see a warning pop up (something about buffer overflow) every time I don't read from the AudioRecord buffer fast enough and consequently miss a chunk of audio samples. Is there any way I can detect that notification programatically so I know exactly when I have missed a chunk?
View 2 Replies View RelatedI am getting following exceptions when I try to read/delete contacts from my application using Contacts Content Provider. What does the following mean? ERROR/IMemory(1349)
View 3 Replies View RelatedHello, I use a thread for drawing to the canvas. By coincidence I recognized that in the program always jumps into the finally part. After view.onDraw(c); is reached it steps back to synchronized (surfaceHolder) and then it steps into the finally part. This happens every time. This means to me that every time exceptions are thrown.
Can anybody explain why this is so?
CODE:......................
I am pretty new to Android, the thing that bugs me the most about the IDE is that I am not able to get any information about an unexpected exception when it gets thrown, I can put a try catch block around identified code that generates it, but in many cases it takes time to find the line of code that generates the exception. is there any other way I can get the exception information? in JDT when an unexpected exception is thrown the call stack displays the exception class name. but in ADT this doesn't work.
View 13 Replies View RelatedI am writing an android application for sending email which launches the default mail application of android and asks to allow sending mail or not.
I want to know the type of Exceptions that are expected to throw in this case.
I have gone through Developer guide and some other Android PDFs ,I am finding only base class Exception.
I want to know are there ant other exceptions that will be thrown other that exception, which we need to handle in our program.