Android Logcat is empty when debug with device in android studio

Question

When I try to debug using android device in android studio Logcat shows nothing. But when I use emulator LogCat shows all the messages. How should view the Logcat messages w

Answer 1

In Android studio 1.* if logcat messages have disappeared for me helps the next trick:

Tools -> Android -> disable )) "enable ADB integration" (if it've been enabled)
Tools -> Android -> enable it again "enable ADB integration"