Android Logging

I can see a few different situations here:

A: If you're talking about the development process, exceptions can be viewed in LogCat (for example, in the Debug perspective) by clicking on the Error filter.

B: If you're talking about crashes in production apps, stack traces are reported to Google and can be viewed in the Android Market Developer Console.

C: Otherwise, if you want to log and submit an exception that you are catching (and therefore not allowing to crash the activity), then check out the logging class in How do I obtain crash-data from my Android application?

C: Otherwise, if you want to log and submit an exception that you are catching (and therefore not allowing to crash the activity), then check out the logging class in How do I obtain crash-data from my Android application?

Instead of using Android logging class, android-logging-log4j can be used to log exception stack traces.

Logging exception stack traces in Android using slf4j api

import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class ExampleLog4JOverSLF4J { private final Logger log = LoggerFactory.getLogger(ExampleLog4JOverSLF4J.class); public void myMethod() { try { // invoke code throwing an exception } catch(Exception e) { log.error("An error occured...", e); // recover or what ever } } } 

Logging exception stack traces in Android using log4j api

import org.apache.log4j.Logger; public class ExampleLog4J { private final Logger log = Logger.getLogger(LogConfiguratorTest.class); public void myMethod() { try { // invoke code throwing an exception } catch(Exception e) { log.error("An error occured...", e); // recover or what ever } } } 

Try to use Android Logger - it is the easiest implementation of SLF4J API:

android-logger.properties:

root=ERROR:MyApplication logger.com.example.ui=DEBUG:MyApplication-UI 

MainActivity.java:

package com.example.ui; import com.noveogroup.android.log.Logger; import com.noveogroup.android.log.LoggerManager; public class MainActivity extends Activity { private static final Logger logger = LoggerManager.getLogger(); private void foo(int value) { logger.i("entered MainActivity::foo value=%d", value); try { // some code } catch(IOException e) { logger.e("I/O error occurred", e); } } } 

LogCat Output:

I/MyApplication-UI: entered MainActivity::foo value=10 E/MyApplication-UI: I/O error occurred