Keep in mind that turning on these developer settings may result in irregular device behavior. Tap Developer options to access the following settings:
USB debugging Checkmark to turn on debug mode when USB is connected.
Development device ID Displays the development device ID.
Stay awake Checkmark to set the screen to never timeout while charging.
Allow mock locations Checkmark to set the device to a mock location.
Desktop backup password Opens a screen to set a password to back up the desktop.
USER INTERFACE
Enable strict mode Checkmark to flash the screen when applications operate for a long period of time on the main thread.
Show touch data Checkmark to make tap data visible on the screen.
Show touches Checkmark to show visual feedback when the screen is tapped.
Show screen updates Checkmark to flash areas of the screen when they are updated.
Show CPU usage Checkmark to overlay the current CPU usage on the screen.
Force GPU rendering Checkmark to use the 2D hardware acceleration in applications.
Window animation scale Opens a dialog box to set the window animation scale.
Transition animation scale Opens a dialog box to set the transition animation scale.
APPS
Don’t keep activities Checkmark to force stop every activity as soon as the user leaves it.
Background process limit Opens a dialog box to set the background process limit.
Show all ANRs Checkmark to show a dialog box when Applications running in the background are not responding.