When developing Android, what should I do if the phone is rooted, but there is still no data/data path in DDMS?
You can use the cmd command prompt to set permissions for each folder:
Open cmd and enter
adb shell Enter—>
su Enter—>
chmod 777 /data Enter—>
chmod 777 /data/data Enter—>
chmod 777 /data/data Enter—>
chmod 777 /data/data/your app package name Enter—>
Finish!
If you want to create a new folder in your package name, refer to the following command:
Open cmd and enter
adb shell Enter—>
adb root Enter—>
cd data/data/your qpp package name Enter—>
mkdir XXX (the name of the folder you want to create) Enter—>
Finish!
ps: Android to get the path directory method and determine whether the directory exists, create a directory
Common methods of Environment:
* method：getDataDirectory()
explain：return File ，Get Android Data Directory。
* method：getDownloadCacheDirectory()
explain：return File ，Get Android download/Cache content directory。
* method：getExternalStorageDirectory()
explain：return File ，Get外部存储目录即 SDCard
* method：getExternalStoragePublicDirectory(String type)
explain：return File ，Take a high-end public external memory directory to place certain types of files
* method：getExternalStorageState()
explain：return File ，Get外部存储设备的当前状态
* method：getRootDirectory()
explain：return File ，Get Android root directory
public void getSDPath(){
File sdDir = null;
File sdDir1 = null;
File sdDir2 = null;
boolean sdCardExist = ()
.equals(.MEDIA_MOUNTED); //Judge whether the SD card existsif (sdCardExist)
{
sdDir = ();//Get and directorysdDir1 = ();
sdDir2 =();
}
("getExternalStorageDirectory(): "+());
("getDataDirectory(): "+());
("getRootDirectory(): "+());
}
//Judge whether the file (folder) under a path existspublic class IsExist {
public static void main(String[] args) {
isExist("e://12");
}
/**
*
* @param path folder path
*/
public static void isExist(String path) {
File file = new File(path);
//Judge whether the folder exists, and if it does not exist, create a folderif (!()) {
();
}
}
}
1. Create a folder on the SD card
public class make extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
(savedInstanceState);
setContentView();
File sd=();
String path=()+"/notes";
File file=new File(path);
if(!())
();
}