How do I write outputs to the Log in Android

Question

I want to write some debugging output to the log to review it with logcat    If I write something to System out this is already displayed in logcat   What is the clean way to write to the log and add levels and tags to my output

User · Answer

Please see the logs as this way   Log e  ApiUrl       MyApiUrl    error  Log w  ApiUrl       MyApiUrl    warning  Log i  ApiUrl       MyApiUrl    information  Log d  ApiUrl       MyApiUrl    debug  Log v  ApiUrl       MyApiUrl    verbose

User · Answer

You can use my libary called RDALogger  Here is github link   With this library  you can log your message with method name class name line number and anchor link  With this link  when you click log  screen goes to this line of code   To use library  you must do implementations below   in root level gradle  allprojects           repositories                               maven   url  https   jitpack io                      in app level gradle  dependencies               implementation  com github ardakaplan RDALogger 1 0 0          For initializing library  you should start like this  in Application class or before first use   RDALogger start  TAG NAME   enableLogging true     And than you can log whatever you want       RDALogger info  info        RDALogger debug  debug        RDALogger verbose  verbose        RDALogger warn  warn        RDALogger error  error        RDALogger error new Throwable         RDALogger error  error   new Throwable       And finally output shows you all you want  class name  method name  anchor link  message   08-09 11 13 06 023 20025-20025 com ardakaplan application I Application  IN CLASS    ENApplication java 29          IN METHOD   onCreate     info

User · Answer

import android util Log    and then  Log i  the your message will go here

User · Answer

String one   object getdata    Log d one

User · Answer

Use android util Log and the static methods defined there  e g   e    w

User · Answer

Recently I found this approach to writing logs in android  which I think is super awesome   public static final boolean FORCED LOGGING   true  private static final int CALLER STACK INDEX   3   public static void showLogs String message            if  FORCED LOGGING                StackTraceElement caller   Thread currentThread   getStackTrace   CALLER STACK INDEX                String fullClassName   caller getClassName                String className   fullClassName substring fullClassName lastIndexOf        1               String methodName   caller getMethodName                int lineNumber   caller getLineNumber                 Log i          className         methodName           lineNumber     n    message

User · Answer

The Tag is just used to easily find your output  because the Output of LogCat can be sometimes very long  You can define somewhere in your class      private static final String TAG    myApp     and use it when debugging     Log v TAG   did something        You can apply as well a Filter to only search for the tag

User · Answer

Look into android util Log   It lets you write to the log with various log levels  and you can specify different tags to group the output   For example   Log w  myApp    no network      will output a warning with the tag myApp and the message no network

[android] How do I write outputs to the Log in Android?

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