Android Operation SD Card

// determine if the SD card exists        boolean sdcardexist = environment.getexternalstoragestate (). Equals (                Android.os.Environment.MEDIA _mounted);         // get the SD card root directory        if (sdcardexist) {            = environment.getexternalstoragedirectory ();             = Dir.getabsolutepath () + "/Macheng Homestead Information/";            ArrayList<String> folder = getFolder (path);             = listparent (folder);        }

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    //list conversion to string[]     PublicString[] Listparent (arraylist<string>list) {        intSize =list.size (); String[] Array=NewString[size];  for(inti = 0; I < list.size (); i++) {Array[i]=(String) list.get (i); }        returnArray; }    //Check if a folder exists    Booleanisfolderexists (String strfolder) {File file=NewFile (strfolder); returnfile.exists (); }    //Scan folder name under folder directory     PublicArraylist<string>GetFolder (String path) {ArrayList<String> names =NewArraylist<string>(); File File=NewFile (path); if(File.isdirectory ()) {file[] array=File.listfiles ();  for(inti = 0; i < Array.Length; i++) {File F=Array[i];                Names.add (F.getname ()); System.out.println ("Folder name" +f.getname ()); }        }        returnnames; }    //scan the data inside the folder     PublicArraylist<string>Folderscan (String path) {File file=NewFile (path); ArrayList<String> names =NewArraylist<string>(); if(File.isdirectory ()) {file[] array=File.listfiles ();  for(inti = 0; i < Array.Length; i++) {File F=Array[i]; if(F.isfile ()) {//FILE TYPEString name =F.getname (); if(Name.contains (". jpg") {names.add (name);                    FileScan (F.getabsolutepath ()); }                } Else{//FOLDER TYPEFolderscan (F.getabsolutepath ()); }            }        }        returnnames; }    //Scan     Public voidfilescan (String file) {Uri data= Uri.parse ("file://" +file); Sendbroadcast (NewIntent (intent.action_media_scanner_scan_file, data)); }

Android Operation SD Card