How to print to the console in Android Studio

Question

I just downloaded Android Studio for Linux from   http   developer android com sdk installing studio html  I m wondering how to print to the console   Neither System out print      nor Log e      from android util Log seem to work

User · Answer

Android Studio 3 0 and earlier  If the other solutions don t work  you can always see the output in the Android Monitor     Make sure to set your filter to Show only selected application or create a custom filter

User · Answer

You can see the println   statements in the Run window of Android Studio  See detailed answer with screenshot here

User · Answer

Run your application in debug mode by clicking on     in the upper menu of Android Studio   In the bottom status bar  click 5  Debug button  next to the 4  Run button   Now you should select the Logcat console    In search box  you can type the tag of your message  and your message should appear  like in the following picture  where the tag is CREATION      Check this article for more information

User · Answer

I had solve the issue by revoking my USB debugging authorizations   To Revoke   Go to Device Settings   Enable Developer Options   Revoke USB debugging authorizations

User · Answer

Android has its own method of printing messages  called logs  to the console  known as the LogCat    When you want to print something to the LogCat  you use a Log object  and specify the category of message    The main options are    DEBUG  Log d ERROR  Log e INFO  Log i VERBOSE  Log v WARN  Log w   You print a message by using a Log statement in your code  like the following example     Log d  myTag    This is my message      Within Android Studio  you can search for log messages labelled myTag to easily find the message in the LogCat  You can also choose to filter logs by category  such as  Debug  or  Warn

User · Answer

Be careful when using Logcat  it will truncate your message after  4 076 bytes which can cause a lot of headache if you re printing out large amounts of data  To get around this you have to write a function that will break it up into multiple parts like so

User · Answer

If your app is launched from device  not IDE  you can do later in menu  Run - Attach Debugger to Android Process   This can be useful when debugging notifications on closed application

[java] How to print to the console in Android Studio?

Android Studio 3.0 and earlier:

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