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View registration device

I want to view Log on device ie System.out.println() . I can view DDMS, but how to view the device screen while the APK file is running.

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If you use root on your phone, you can use the logcat utility in the Terminal application:

 # logcat D/dalvikvm( 142): GC freed 200 objects / 8744 bytes in 254ms etc..

It displays the same log ( /dev/log/main ) as the adb logcat , which was suggested in another answer.

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There is also a Logcat app for Android.

code.google.com/p/android-random/downloads/list

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Running "adb logcat" on the command line of your PC will also work. Do you want to see the log output on the device screen? Hm why? I do not believe that you can call the shell or access the logs from the application if your device is not deployed.

What you can do, of course, is to create a TextView in your application and update its contents with any message you need.

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