android-logcat

I am developing the application in HTML which is calling the console.log() from Javascript to provide me logs during the development about what happens in the web page code. Unfortunately when I use the adb logcat command to check logs I can see output from all other applications, but not the output from my JavaScript code. I can see even the log from web browser that the page is loaded, but not console.log() output from my JavaScript code executed in the web browser. According to information on this page ( http://developer.android.com/guide/webapps/debugging.html ) it should work. I am

I am getting lots of this kind of logcat messages related to my application. 11-19 19:04:23.872 3327 3440 I chatty : uid=10085 com.xxxx.yyy expire 18 lines What are these log messages? Am I missing my actual application logcat logs here? Yes, this indicates that some messages did not make it into the actual log, maybe because other application(s) send too many messages into it. This seem to be a new thing in liblog in Marshmallow(?). Can't find a clear explanation of the new logging policy, or even if there is actually one, but the change is kind of mentioned here : We declared an application

I believe there have been changes to the ways apps can read logs in android post 4.2. But I wanted to know if I can read all the logs including system logs from logcat from within an app for current versions of android? If yes does it need some permission or not? Unless you rooted you cannot do this since Jelly Bean. See this Android bug report and this related discussion . Quote: The change is that third party applications can no longer get the read logs permission, however every app can read the logs containing only the lines they have written, without needing any permission. Keep in mind

This question already has an answer here: Android - print full exception backtrace to log 8 answers I want to print the stack trace because at the moment I have this running. } catch (IOException e) { throw new Error("Copying Failed"); } And I have been told to print e.stacktrace(); How do I do this? } catch (IOException e) { Log.e("YOUR_APP_LOG_TAG", "I got an error", e); } And check the LogCat for the output. Bourbon An other method, very useful : try { ... } catch (Exception e) { Log.e(APP_TAG, "STACKTRACE"); Log.e(APP_TAG, Log.getStackTraceString(e)); } In Android you should use the log