Android store JSON to local, and read local JSON

/*** Save JSON to local *@parammactivity *@paramfilename *@paramcontent*/     Public StaticFile dir =NewFile (Environment.getexternalstoragedirectory () + "/. imageloader/json/");  Public Static voidSavetosdcard (Activity mactivity, string filename, string content) {string en=environment.getexternalstoragestate (); //gets the SDcard status if SDcard is plugged into a phone and is not write protected        if(En.equals (environment.media_mounted)) {Try{dir.mkdirs ();//Create folders where write filesFile File =NewFile (dir, filename); OutputStream out=Newfileoutputstream (file);                Out.write (Content.getbytes ()); Out.close ();Apputils.showtoast (mactivity, "save Success");}Catch(Exception e) {e.printstacktrace ();Apputils.showtoast (mactivity, "Save Failed");            }        } Else {            //prompt for user sdcard not present or write protected statusApputils.showtoast (mactivity, "sdcard not present or write protected State"); }    }    /*** Read JSON from the local *@parammactivity *@paramfilename *@paramcontent*/     Public Staticstring ReadTextFile (String filePath) {StringBuilder sb=NewStringBuilder (); Try{File File=NewFile (dir + "/" +FilePath); InputStream in=NULL; Inch=Newfileinputstream (file); intTempbyte;  while((Tempbyte = In.read ())! =-1) {sb.append (Char) tempbyte);        } in.close (); } Catch(Exception e) {e.printstacktrace (); }        returnsb.tostring (); }

Android store JSON to local, and read local JSON