CODEWITHSUNDEEP
androidprintingconsolelogcat
ShadowMan
ShadowMan

Reputation: 167

How to print a string to logcat for testing?

I know this question has been asked before, but I can't find a clear answer. I'm new to Android Studio and the logcat console confuses me. I have a string date and I want to keep 'track' of it in the console so I know what value it has.

I tried commands like Log.i and console.log, but they don't seem to work for me.

Upvotes: 0

Views: 5650

Answers (3)

Jayesh Dankhara
Jayesh Dankhara

Reputation: 849

if you want to show logs in error you can write

 Log.e("Your Tag for identy", "Your String ");

if you want to show logs in info you can write

 Log.i("Your Tag for identy", "Your String ");

Upvotes: 1

Adam Howell
Adam Howell

Reputation: 455

Your use of Log.i is the correct way to write to Logcat. Here is the documentation for Log.

I typically use a tag that describes the stage I am in (setup, teardown, UI update, etc), and I will usually log any action that can trigger an exception.

To view the Logcat, there should be a window for that in Android Studio. When the windows is not visible, you can access it from a tab in the lower left corner of the screen: Logcat location in Android Studio

Upvotes: 0

CommonsWare
CommonsWare

Reputation: 1007124

Where do I write my print line code ?

That is up to you.

Where can I see it when it gets printed ?

In LogCat:

LogCat in Android Studio

You will get this from the Android view (usually docked on the bottom edge on the left side). Note that I have sometimes encountered a bug where the automatically-applied filter for your app (right-hand drop-down list, above the output) seems to result in nothing showing up in the output. You may need to remove the filters, then adjust the output based on log level.

You can also view LogCat at the command line via adb logcat and in the Android Device Monitor (Tools > Android > Android Device Monitor from the Android Studio main menu).

Do I have to run the hole app (emulator or via a device) to print the line to the console?

Yes.

Upvotes: 1

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