Share: Android clears local data cache code

Tag:android   import   databases    Database    files    

/*  *    pieces  : datacleanmanager.java  *  description      Description:    main functions are to clear the inside/out cache, clear the database, clear the sharedpreference, clear files and clear the custom directory   */ import java.io.File; import android.content.context;import android.os.environment; /** *  the application Data Purge manager  * /publicclass datacleanmanager {    /** *  clear this app internal cache (/data/data/ Com.xxx.xxx/cache)  * *  @paramcontext  */    publicstaticvoid  Cleaninternalcache (Context context)  {        Deletefilesbydirectory (Context.getcachedir ());    }     /**  *  Clear all databases for this application (/data/data/com.xxx.xxx/databases)  * *  @param  context */     publicstaticvoid cleandatabases (Context context)  {        deletefilesbydirectory (New filE ("/data/data/"                  + context.getpackagename ()  +  "/databases"));    }      /**     **  Clear this application sharedpreference (/data/data/com.xxx.xxx/shared_prefs ) * *  @param      *context     */     publicstaticvoid cleansharedpreference (Context context)  {        deletefilesbydirectory (New file ("/data/data/"                  + context.getpackagename ()  + "/shared_prefs"));     }     /** *  clear the application database by name  * *  @param   context *  @paramdbName  */    publicstaticvoid cleandatabasebyname ( context context,  Stringdbname)  {       context.deletedatabase (dbName);     }     /** *  clear the content under/data/data/com.xxx.xxx/files  * *   @param  context */    publicstaticvoid cleanfiles (Context context )  {       deletefilesbydirectory (Context.getfilesdir ());     }     /**     **  clear the contents of the external cache (/mnt/sdcard/ Android/data/com.xxx.xxx/cache)  * *  @param      *context      */    publicstaticvoid cleanexternalcache (Context context)  {       if (Environment.getexternalstoragestate (). Equals (                 environment.media_mounted) )  {   &Nbsp;       deletefilesbydirectory (Context.getexternalcachedir ());        }    }     /** *  Clear the file under the custom path, use caution, please do not delete it by mistake. And only supports file deletion in directory  * *  @param  filePath */    publicstaticvoid  Cleancustomcache (String filepath)  {       deletefilesbydirectory ( New file (FilePath));    }     /** *  Erase all data from this app  * *  @param  context *  @paramfilepath  */     Publicstaticvoid cleanapplicationdata (Context context,string... filepath)  {        cleaninternalcache (context);        Cleanexternalcache (context);        cleandatabases (context);       &nbSp;cleansharedpreference (context);        cleanfiles (context);        for  (String filepath : filepath)  {            cleancustomcache (FilePath);        }    }     /** *  Delete method   This will only delete files under a folder, If the incoming directory is a file, it will not be processed  * *  @param  directory */     Privatestaticvoid deletefilesbydirectory (file directory)  {        if  (directory != null&& directory.exists ()  &&  Directory.isdirectory ())  {           for  ( File item : directory.listfiles ())  {                 item.deLete ();           }        }    }}

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