How to debug a Service?
Introduction
When you start a project with a service in it in debug mode, and you placed a breakpoint in a method of the service, the debugger will not stop.
The solution that works in almost all situation is to wait declaratively in the code for the debugger to attach. To do this, you have to make a call to:
- android.os.Debug.waitForDebugger();
The breakpoint can be inserted at any line after this call.
As a complete example, the SoftKeyboard tutorial is enhanced with the call above:
- public class SoftKeyboard extends InputMethodService
- implements KeyboardView.OnKeyboardActionListener {
- @Override
- public void onConfigurationChanged(Configuration newConfig) {
- Log.d("SoftKeyboard", "onConfigurationChanged()");
- /* now let's wait until the debugger attaches */
- android.os.Debug.waitForDebugger();
- super.onConfigurationChanged(newConfig);
- /* do something useful... */
- }
As you can see in the code, the first call in the method is a call to the logger, with which we can see in the Log output when our method was called. This can be an other way of tracking our method calls, without the need to stop at a breakpoint. But usually this is not enough for detailed debugging.
Then the second statement waits for the debugger to attach, as it is also noted in the comment. After this line the breakpoint can be inserted anywhere in the method.
Debugging a Service in case an Activity is also part of the application is even easier. In that case the activity has to be started first, then the debugger is able to stop at the breakpoint in the service as well, without the need of an explicit waitForDebugger() call.
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Great Work !!!
I have been searching for this code for a long time. This is very useful and important to me. Great work done !!!
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A server, which runs as a
A server, which runs as a background process on your development machine. The server manages communication between the client and the adb daemon running on an emulator or device.
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In case you defined your
In case you defined your service to use a remote process, you can remove the "remote" property in the manifest file, and develop+debug it like that. In case your code is mature enough, you can switch to use a remote process again.
You can invoke a client from
You can invoke a client from a shell by issuing an adb command. Other Android tools such as the ADT plugin and DDMS also create adb clients.
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You define your service to
You define your service to use a remote process, you can remove the "remote" property in the manifest file, and develop+debug it like that.
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"Debug" is vital for every
"Debug" is vital for every software. When it is along with the application then the problem is very simple.
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Yea it works i tried it
I have been able to get it working for local processes. Thanks alot for your help. i have ot admit i was struggling for a fair bit
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It appears that the only way
It appears that the only way is to remove android:process=":remote" temporarily in the manifest. Free directory
Looking ahead more. Hope this
Looking ahead more. Hope this will useful for everyone. Thanks
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This can be an other way of
This can be an other way of tracking our method calls, without the need to stop at a breakpoint. But usually this is not enough for detailed debugging.
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Took me time to apprehend all the comments, but I absolutely enjoyed the article. It accepted to be Very admiring to me and I am abiding to all the commenter’s here! It’s consistently nice back you can not alone be knowledgeable, but additionally entertained! I’m abiding you had fun autograph this article. [ triathlon bike ] [ triathlon wetsuit ]
Great tutorial
Please make some more tutorials like this! Very helpful.
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I think Ogg is much easier to
I think Ogg is much easier to user, but when Google Sync works right for me, it’s great.
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"Debug" is vital for every
"Debug" is vital for every software. When it is along with the application then the problem is very simple.
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Debugging is very important.
Debugging is very important. If the debugger is a part of the application the it is very easy.
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Excellent information. I've
Excellent information. I've been trying to figure out how to debug my Droid for some time now.
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Its a very good idea, and
Its a very good idea, and some of the comments have added onto the utility of the method of service debugging. Very helpful. Thanks.
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Tutorial helped a lot and you
Tutorial helped a lot and you really make it clear and easy to understand. Thanks for sharing.
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In Visual Studio.Net, you
In Visual Studio.Net, you attach to the process (Debug|Processes... menu), and then you can debug as usual. Hope it will work.
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You can invoke a client from
You can invoke a client from a shell by issuing an adb command. Other Android tools such as the ADT plugin and DDMS also create adb clients.
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I have used both Ogg Sync and
I have used both Ogg Sync and Google Sync for my Android. I can’t seem to decide on one over the other. Sometimes I think Ogg is much easier to user, but when Google Sync works right for me, it’s great.
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Debugging a Service in case
Debugging a Service in case an Activity is also part of the application is even easier. In that case the activity has to be started first, then the debugger is able to stop at the breakpoint in the service as well, without the need of an explicit waitForDebugger() call.
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A client, which runs on your
A client, which runs on your development machine. You can invoke a client from a shell by issuing an adb command. Other Android tools such as the ADT plugin and DDMS also create adb clients.
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Great Article
Great tutorial, you really make it clear and easy to understand. What I really would like to grumble about is IE6 (and the other 2 versions of IE, although they're a bit better)
Microsoft should really launch a concerted effort to get people to update their browsers to IE8, because more and more web designers and web design firms are not making IE6 compliance a priority at all.
In an ideal world everybody will start using FireFox, while there is better and better incarnations of Chrome with every update, leaving people spoilt for choice of fast and secure (and free!) web browsers.
If only people will listen when you recommend a new browser though. Change is something which lots of people don't want to deal with. They're comfortable using IE and don't want to have to learn how to work new things...sad really.
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Took me time to read all the
Took me time to read all the comments, but I really enjoyed the article. It proved to be Very supportive to me and I am sure to all the commenter’s here! It’s always nice when you can not only be knowledgeable, but also entertained! I’m sure you had fun writing this article.
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Wow
I can read n follow this tutorial, but I can do it without some example (tutorial)
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I have used both Ogg Sync and
I have used both Ogg Sync and Google Sync for my Android. I can’t seem to decide on one over the other. Sometimes I think Ogg is much easier to user, but when Google Sync works right for me, it’s great.bmw x1
i dont know debug
I do not quite understand about the problem of debugging, if I may know what it is about debugging?
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interesting
I am not into hardcore coding, but did understand the logic of the post. Its a very good idea, and some of the comments have added onto the utility of the method of service debugging. Nice.
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I have used both Ogg Sync and
I have used both Ogg Sync and Google Sync for my Android. I can’t seem to decide on one over the other. Sometimes I think Ogg is much easier to use.Adult Blu-ray
This a very useful and simple
This a very useful and simple solution on how to debug a service. I had the same problem with the easy saver service and your method of debugging worked like a charm, thank you!
Thank you, just what ive been
Thank you, just what ive been looking for... seems much easier than i thought so will def. go ahead and try it for myself. Best, - jonathan budd mastermind
Thanks!
Thanks! It seems to be very easy. Here I've found some more interesting information: http://www.videorolls.com/watch/Debug-Tutorial-1
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There are 2 main ways to do this. I prefer to build business classes that do
the actual work of the service related to graphic designer. I can then test them in a Windows
executable, and once debugged, plug them into a service. The other way is a
bit more difficult.
You create your Service. You install it and start it. In Visual Studio.Net,
you attach to the process (Debug|Processes... menu), and then you can debug
as usual.
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Amazing tut
Never knew this small line of codes can debug. Thanks for the tutorial.
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Very helpful debugging
Very helpful debugging tutorial!Thanks!
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Very helpful debugging
Very helpful debugging tutorial!
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Did you try what they
Did you try what they suggested below? This is also the same problem I have, the reason why I arrived in this site.
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Doesn't seem to work for
Doesn't seem to work for remote services with Activities in the same project.
waitForDebugger() caused the emulator to wait until infinity ended ;), and breakpoints just were ignored.
Seems the only way is to remove android:process=":remote" temporarily in the manifest. Or did anybody find a better solution?
Works for local processes
The above described solution does work for local processes.
In case you defined your service to use a remote process, you can remove the "remote" property in the manifest file, and develop+debug it like that. In case your code is mature enough, you can switch to use a remote process again.