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Android stack trace

How can I get printStackTrace equivalent in android? I know that I can log an error by passing the tag name and String to the logging method, but that just gives me a nullpointer exception. If I call e.printStackTrace (), where is this data printed on?

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If you are using eclipse, make sure you have the LogCat window LogCat . You can find it under

Window-> Show View-> Other → In Android → LogCat

updated: 2014 July

OR, if you are using Android Studio, you can find it under

Menu window → Show view → Log file

LogCat is like a console in regular JAVA. Your e.printstacktrace() will also appear in LogCat.

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 Log.e("mytag", "mymessage",ex);
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Data is still printed in DDMS logs with e.printStackTrace (); You can also use Log.e ("Tag", "Description", e); which will also print magazines. DDMS is located in android-sdk / tools / ddms, and the logs will appear in the bottom pane at startup.

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First, if you have not already done so, you should wrap your code in a try-catch structure, for example, as follows:

 private String TAG = "MyMethodName"; // change this to anything that makes sense to you try { ... Log.d(TAG, "processed OK"); } catch (Exception except) { Log.e(TAG,"CRASH StackTrace: "+ Arrays.toString(except.getStackTrace())); }

This pseudo code will show the full stack trace.

NEWBIE ALERT: Before publishing the application, be sure to “comment” (using // ) this and all debugging functions that can be used to display the internal components of your code. Anyone who connects a device using your code with ADB enabled will be able to access LogCat (where Log publishes).

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