SD Memory Read

  Public  voidbt7 (View v) {//determine if the SD card is mounted       if(Environment.getexternalstoragestate (). Equals (environment.media_mounted)) {//Get text Box contentsString ss=Et.gettext (). toString (); Try {           //Write//1. Constructing the output stream//1) Get the path//get the SD card root directory//String path=environment.getexternalstoragedirectory (). Getcanonicalpath (); //get the directory that corresponds to the package nameString Path=getexternalfilesdir ("Music"). toString (); Toast.maketext (mainactivity. This, "path=" +path, Toast.length_long). Show (); //Construction FileFileOutputStream fos=NewFileOutputStream (path+ "/test.txt"); PrintStream PS=NewPrintStream (FOS);               Ps.print (ss);               Ps.close ();               Fos.close (); Toast.maketext (mainactivity. This, "Write external success", Toast.length_short). Show (); }           Catch(Exception e) {e.printstacktrace (); Toast.maketext (mainactivity. This, "Error storing file", Toast.length_short). Show (); }       }Else{toast.maketext (mainactivity). This, "SD Card not Loaded", Toast.length_short). Show (); }    }     Public  voidBt8 (View v) {if(Environment.getexternalstoragestate (). Equals (environment.media_mounted)) {Try{String path=getexternalfilesdir ("Music"). Getcanonicalpath () + "/test.txt"; FileInputStream FIS=NewFileInputStream (path); byte[]b=New byte[1024]; inti; String SS="";  while((I=fis.read (b)) >0) {SS+=NewString (b,0, i); } toast.maketext (mainactivity. This, "File contents" +SS, Toast.length_short). Show ();            Fis.close (); }            Catch(Exception e) {toast.maketext (mainactivity. This, "Error reading file", Toast.length_short). Show (); }        }        Else{toast.maketext (mainactivity). This, "SD Card not Loaded", Toast.length_short). Show (); }    }

SD Memory Read