How to create text file and insert data to that file on Android

Question

How can I create file txt and insert data on file with content of some of variable on my code for example   population       on Android  so there will be folder files on our package in file explorer  data data ourpackage files ourfiles txt  Thank You

User · Answer

If you want to create a file and write and append data to it many times  then use the below code  it will create file if not exits and will append data if it exists    SimpleDateFormat formatter   new SimpleDateFormat  yyyy MM dd            Date now   new Date            String fileName   formatter format now      txt    like 2016 01 12 txt            try                               File root   new File Environment getExternalStorageDirectory   File separator  Music Folder    Report Files                      File root   new File Environment getExternalStorageDirectory     Notes                    if   root exists                                           root mkdirs                                      File gpxfile   new File root  fileName                     FileWriter writer   new FileWriter gpxfile true                   writer append sBody   n n                    writer flush                    writer close                    Toast makeText this   Data has been written to Report File   Toast LENGTH SHORT  show                              catch IOException e                                 e printStackTrace

User · Answer

I m using Kotlin here  Just adding the information in here  you can also create readable file outside Private Directory for the apps by doing this example  var teks  your teks  var NamaFile  Text1 txt  var strwrt FileWriter  strwrt FileWriter File  sdcard   NamaFile                 strwrt write teks              strwrt close     after that you can acces File Manager and look up on the Internal Storage  Text1 txt will be on there below all the folder

User · Answer

Check the android documentation  It s in fact not much different than standard java io file handling so you could also check that documentation   An example from the android documentation   String FILENAME    hello file   String string    hello world     FileOutputStream fos   openFileOutput FILENAME  Context MODE PRIVATE   fos write string getBytes     fos close

User · Answer

Using this code you can write to a text file in the SDCard   Along with it  you need to set a permission in the Android Manifest    lt uses-permission android name  android permission WRITE EXTERNAL STORAGE    gt    This is the code    public void generateNoteOnSD Context context  String sFileName  String sBody        try           File root   new File Environment getExternalStorageDirectory     Notes            if   root exists                  root mkdirs                      File gpxfile   new File root  sFileName           FileWriter writer   new FileWriter gpxfile           writer append sBody           writer flush            writer close            Toast makeText context   Saved   Toast LENGTH SHORT  show          catch  IOException e            e printStackTrace              Before writing files you must also check whether your SDCard is mounted  amp  the external storage state is writable   Environment getExternalStorageState

User · Answer

First create a Project With PdfCreation in Android Studio  Then Follow below steps   1 Download itextpdf-5 3 2 jar library from this link  https   sourceforge net projects itext files iText iText5 3 2   1  and then 2 Add to app gt libs gt itextpdf-5 3 2 jar 3 Right click on jar file then click on add to library 4  Document document   new Document PageSize A4      Create Directory in External Storage         String root   Environment getExternalStorageDirectory   toString            File myDir   new File root     PDF            System out print myDir toString             myDir mkdirs       Create Pdf Writer for Writting into New Created Document         try               PdfWriter getInstance document  new FileOutputStream FILE              catch  DocumentException e                e printStackTrace              catch  FileNotFoundException e                e printStackTrace                 Open Document for Writting into document         document open       User Define Method         addMetaData document           try               addTitlePage document             catch  DocumentException e                e printStackTrace                 Close Document after writting all content         document close     5    public void addMetaData Document document                document addTitle  RESUME            document addSubject  Person Info            document addKeywords  Personal  Education  Skills                    document addAuthor  TAG            document addCreator  TAG              public void addTitlePage Document document  throws DocumentException          Font Style for Document         Font catFont   new Font Font FontFamily TIMES ROMAN  18  Font BOLD           Font titleFont   new Font Font FontFamily TIMES ROMAN  22  Font BOLD                   Font UNDERLINE  BaseColor GRAY           Font smallBold   new Font Font FontFamily TIMES ROMAN  12  Font BOLD           Font normal   new Font Font FontFamily TIMES ROMAN  12  Font NORMAL      Start New Paragraph         Paragraph prHead   new Paragraph       Set Font in this Paragraph         prHead setFont titleFont      Add item into Paragraph         prHead add  RESUME     Name n       Create Table into Document with 1 Row         PdfPTable myTable   new PdfPTable 1      100 0f mean width of table is same as Document size         myTable setWidthPercentage 100 0f      Create New Cell into Table         PdfPCell myCell   new PdfPCell new Paragraph               myCell setBorder Rectangle BOTTOM      Add Cell into Table         myTable addCell myCell           prHead setFont catFont           prHead add   nName1 Name2 n            prHead setAlignment Element ALIGN CENTER      Add all above details into Document         document add prHead           document add myTable           document add myTable      Now Start another New Paragraph         Paragraph prPersinalInfo   new Paragraph            prPersinalInfo setFont smallBold           prPersinalInfo add  Address 1 n            prPersinalInfo add  Address 2 n            prPersinalInfo add  City  SanFran  State  CA n            prPersinalInfo add  Country  USA Zip Code  000001 n            prPersinalInfo add  Mobile  9999999999 Fax  1111111 Email  john pit gmail com  n            prPersinalInfo setAlignment Element ALIGN CENTER           document add prPersinalInfo           document add myTable           document add myTable           Paragraph prProfile   new Paragraph            prProfile setFont smallBold           prProfile add   n  n Profile    n             prProfile setFont normal           prProfile add   nI am Mr  XYZ  I am Android Application Developer at TAG             prProfile setFont smallBold           document add prProfile      Create new Page in PDF         document newPage

[android] How to create text file and insert data to that file on Android

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