Android clears other app data

When debugging an application, often to clear the data generated by the APK initialization, the initialization will be in the/data/data/com.xxx.xx directory and/sdcard/a lot of new files, each time to the settings---application----software name---erase data. Busy operation trouble, want to use automation one click to clear.

0x1 Exhaustive traverse Delete folder

   开始想到的是获取su权限后枚举/data/data/com.xx.xx目录下的文件夹，逐个删除文件夹

1  Public Static BooleanRemoveappdata (String packagename)2     {3File File =NewFile ("/data/data/" +packagename);4SYSTEM.OUT.PRINTLN ("Package Name:" +packagename);5         if(File.exists ())6         {7DataOutputStream OS =NULL;8DataInputStream is =NULL;9DataInputStream es =NULL;TenBufferedReader buf =NULL; OneProcess p =NULL; A             Try -             { -p = runtime.getruntime (). EXEC ("su");//Get root Permission theOS =NewDataOutputStream (P.getoutputstream ()); -                 //is = new DataInputStream (P.getinputstream ()); -BUF =NewBufferedReader (NewInputStreamReader (P.getinputstream ())); -ES =NewDataInputStream (P.geterrorstream ()); +Os.writebytes ("ls/data/data/" + packagename + "/\ n") ); - Os.flush (); +list< String > List =Newarraylist< String >( ); AList.add ("Cache" ); atList.add ("Databases" ); -List.add ("Files" ); -List.add ("Shared_prefs" ); -                  for(inti = 0; I < list.size (); i++ ) -                 { -Os.writebytes ("rm-f-r/data/data/" + PackageName + "/" + (String) list.get (i) + "\ n");//Delete files and folders inSystem.out.println ("Traverse" +(String) list.get (i)); - Os.flush (); to                 } + Os.flush (); -Os.writebytes ("exit\n" ); the Os.flush (); * os.close (); $ P.destroy ();Panax Notoginseng             } -             Catch(IOException e) the             { +                 Try A                 { the os.close (); + is.close (); -                 } $                 Catch(IOException E1) $                 { - e1.printstacktrace (); -                 } the P.destroy (); -             }Wuyi             return true; the         } -         Else Wu         { -             return false; About         } $}

The effect is OK, use the exhaustive traversal folder name to delete, although inefficient at least the desired function realized

0x2 using pm command to delete

  无意在google看到某文章(研究删除数据到底会删除那些文件/夹)所使用的pm clear命令，尝试修改之后发现瞬间高大上！！！

1 Try2         {3p = runtime.getruntime (). EXEC ("su" );4OS =NewDataOutputStream (P.getoutputstream ());5is =NewDataInputStream (P.getinputstream ());6Os.writebytes ("PM Clear" + PackageName + "\ n" );7 Os.flush ();8Os.writebytes ("echo Test \ n");//echo test and get test to make sure the above code is executed9 Os.flush ();TenString result =is.readline (); OneOs.writebytes ("exit\n" ); A Os.flush (); - os.close (); - P.destroy (); the         } -         Catch(IOException e) -         { - e.printstacktrace (); +}

Android clears other app data