How to modify the SDcard permissions of the emulator in Android

In recent days when learning to develop files and databases in the Android project, because of the use of sdcard in the simulator, but suddenly found how this sdcard permissions is not right? So lead to the development of the stop, the spirit of good learning norms, so first check the online some of the statements.

The specific contents are as follows:

Now the permissions:

Most of the online claims are as shown in the option of adding SD Card support to the AVD manager.

Certainly do not deny this method some people use success, but for my simulator but not very useful, I believe there is a similar problem with me is not feasible, but is not the reason for this? In fact, this is just to add something about the hardware, and can not really affect the problems I have encountered.

Therefore, the implementation of the final strategy, is the strategy of no strategy, is to create a new simulator , of course, the problem is solved, for the upper-level programmers, such problems know how to solve the line.

How to modify the SDcard permissions of the emulator in Android