Eclipse ddms cannot view mobile phone/data/Data

1. Open cmd
2. Type'adb shell'
3. su
4. Press 'allow' on device to allow root permission on the mobile phone
5. Chmod 777/data/Data modify the permission for this directory

6. Go to the ddms view in eclipse

Similarly, if a file under an application package is exported with fail to pull selection, you can also run the CHMOD command on the file: chmod 777/data/app_package/shared_prefs/file. or

Chmod 777/data/app_package/shared_prefs/file /*

In this way, the shared preferences file can be exported in all ddms.

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Command name: chmod

　　
Permission: All Users
　　
Usage: chmod [-CFVR] [-- help] [-- version] mode file...

　　
Note: The file calling permissions for Linux/Unix are divided into three levels: file owner, group, and others. Chmod can be used to control how files are called by others.

　　
Parameters:
　　
Mode: permission setting string in the following format: [ugoa...] [[+-=] [rwxx]...] [,...], where

U indicates the owner of the file, G indicates that the owner of the file belongs to the same group, O indicates that the owner of the file belongs to other people, and a indicates that all three are.

+ Adds a permission,-Indicates canceling the permission, and = indicates a unique permission.
R indicates that the file can be read, W indicates that the file can be written, and X indicates that the file can be executed only when the file is a subdirectory or the file has been set to executable.

-C: if the permission of the file has been changed, the change action is displayed.
-F: Do not display an error message if the file permission cannot be changed.
-V: displays details of permission changes.
-R: Change the permissions of all files and sub-directories in the current directory in the same way (that is, change one by one in the way of delivery)

-- Help: displays auxiliary instructions
-- Version: displays the version.
　　
Example: Set the file file1.txt to readable by all users:
Chmod Ugo + R file1.txt
　　
Set file1.txt to readable:
Chmod A + R file1.txt
　　
Set file1.txt and file2.txt as the owner of the archive, which can be written to the same group to which the archive belongs, but not to others:

Chmod ug + W, o-w file1.txt file2.txt
　　
Set ex1.py to only the owner of the file to execute:
Chmod U + x ex1.py
　　
Set all files and subdirectories in the current directory to be readable by anyone:
Chmod-r a + R *
　　
In addition, chmod can use numbers to indicate permissions, such as chmod 777 file.
Syntax: chmod ABC File

The first digit indicates the user's permission. If the value is 7, the user has the rwx permission. Similarly, the second digit indicates the group, and the third digit indicates the other.
　　
Each A, B, and C is a number, indicating the permissions of the user, group, and other respectively.
　　
R = 4, W = 2, x = 1
If you want the rwx attribute, 4 + 2 + 1 = 7;
If the RW-attribute is required, 4 + 2 = 6;
If you want the R-x attribute, 4 + 1 = 7.
　　
Example:
Chmod A = rwx File
　　
And
Chmod 777 File
　　
Same effect
Chmod ug = rwx, O = X file
　　
And
Chmod 771 File
　　
Same effect
　　
If chmod 4755 filename is used, the program can have root permissions.

Linux Common commands complete set: http://linux.chinaitlab.com/special/linuxcom/