The number of lines displayed in Android studio

Android Studio Right-click on the left side of the open file to set the number of lines of code to display like Eclipse, 1. However, there is a very big difference with eclipse, after Eclipse is set up, the rest of the corresponding files will also be in effect, even if the file is closed and the number of open lines is still displayed, but in Android studio such settings are only for this file, and is only temporary, File close again open after the number of not show, feel this function is very chicken AH.

How to set a talent to make the number of rows permanent display, see Figure 2.

Figure 1:

Figure 2:

The number of lines displayed in Android studio