Device Monitor

Android Device Monitor is a stand-alone tool that provides a graphical user interface for several Android application debugging and analysis tools. The Monitor tool does not require installation of an integrated development environment, such as Android Studio, and encapsulates the following tools:

• DDMS
• Tracer for OpenGL ES
• Hierarchy Viewer
• Systrace
• Traceview
• Pixel Perfect magnification viewer

Usage

To start Device Monitor:

• From Android Studio, choose Tools > Android Device Monitor or click the Android Device Monitor icon .
• From the command line, in the SDK tools/ directory, enter the following command:

  monitor

Start an Android emulator or connect an Android device via USB cable, and connect Device Monitor to the device by selecting it in the Devices window.

Note: Only one debugger can be connected to your device at a time. If you're using ADT, you may need to close the debugging tool before launching the Device Monitor in order for the device to be fully debuggable.