Open a selected file image pdf programmatically from my Android Application

Question

I m working on an Android application which should be able to open a selected file from a specific folder   I already tried this  but after selecting which application I want to open it  I got this message      Impossible loading   After trying a lot of thread 1 and thread 2  I use these lines of code to do it   Intent intent   new Intent    intent setAction Intent ACTION VIEW   intent setDataAndType Uri parse   mnt sdcard xxx xxx Pictures xxx jpg     image      myContext startActivity intent     How can I figure this out

User · Answer

You can try this     File file   new File filePath   MimeTypeMap map   MimeTypeMap getSingleton    String ext   MimeTypeMap getFileExtensionFromUrl file getName     String type   map getMimeTypeFromExtension ext    if  type    null      type           Intent intent   new Intent Intent ACTION VIEW   Uri data   Uri fromFile file    intent setDataAndType data  type    startActivity intent

User · Answer

directly you can use this code it will open all type of files    Intent sharingIntent   new Intent Intent ACTION VIEW       Uri screenshotUri   Uri fromFile your file       sharingIntent setType  image png        sharingIntent putExtra Intent EXTRA STREAM  screenshotUri       String type   MimeTypeMap getSingleton   getMimeTypeFromExtension MimeTypeMap getFileExtensionFromUrl screenshotUri toString          sharingIntent setDataAndType screenshotUri  type    null    text plain    type       startActivity Intent createChooser sharingIntent   Share using

User · Answer

Download source code from here  https   deepshikhapuri wordpress com 2017 04 24 open-pdf-file-from-sdcard-in-android-programmatically    activity main xml    lt  xml version    1 0  encoding    utf-8   gt   lt RelativeLayout xmlns android    http   schemas android com apk res android amp  8221  xmlns tools    http   schemas android com tools amp  8221  android id      id activity main    android layout width    match parent    android layout height    match parent    android background     efefef    gt    lt ListView android layout width    match parent    android id      id lv pdf    android divider     efefef    android layout marginLeft    10dp    android layout marginRight    10dp    android layout marginTop    10dp    android layout marginBottom    10dp    android dividerHeight    5dp    android layout height    wrap content    gt    lt  ListView gt   lt  RelativeLayout gt    MainActivity java   package com pdffilefromsdcard   import android Manifest  import android app ProgressDialog  import android content Intent  import android content pm PackageManager  import android os Environment  import android support v4 app ActivityCompat  import android support v4 content ContextCompat  import android support v7 app AppCompatActivity  import android os Bundle  import android util Log  import android view View  import android widget AdapterView  import android widget ListView  import android widget Toast   import java io File  import java util ArrayList  import java util HashMap  import java util List   public class MainActivity extends AppCompatActivity    ListView lv pdf  public static ArrayList lt File gt  fileList   new ArrayList lt File gt     PDFAdapter obj adapter  public static int REQUEST PERMISSIONS   1  boolean boolean permission  File dir    Override protected void onCreate Bundle savedInstanceState    super onCreate savedInstanceState   setContentView R layout activity main   init        private void init      lv pdf    ListView  findViewById R id lv pdf   dir   new File Environment getExternalStorageDirectory   getAbsolutePath     fn permission    lv pdf setOnItemClickListener new AdapterView OnItemClickListener      Override public void onItemClick AdapterView lt   gt  adapterView  View view  int i  long l    Intent intent   new Intent getApplicationContext    PdfActivity class   intent putExtra    position     i   startActivity intent    Log e    Position     i                     public ArrayList lt File gt  getfile File dir    File listFile     dir listFiles    if  listFile    null  amp  amp  listFile length  gt  0    for  int i   0  i  lt  listFile length  i       if  listFile i  isDirectory      getfile listFile i       else    boolean booleanpdf   false  if  listFile i  getName   endsWith     pdf         for  int j   0  j  lt  fileList size    j      if  fileList get j  getName   equals listFile i  getName       booleanpdf   true    else         if  booleanpdf    booleanpdf   false    else   fileList add listFile i               return fileList    private void fn permission     if   ContextCompat checkSelfPermission getApplicationContext    Manifest permission READ EXTERNAL STORAGE     PackageManager PERMISSION GRANTED      if   ActivityCompat shouldShowRequestPermissionRationale MainActivity this  android Manifest permission READ EXTERNAL STORAGE        else   ActivityCompat requestPermissions MainActivity this  new String   android Manifest permission READ EXTERNAL STORAGE   REQUEST PERMISSIONS        else   boolean permission   true   getfile dir    obj adapter   new PDFAdapter getApplicationContext    fileList   lv pdf setAdapter obj adapter          Override public void onRequestPermissionsResult int requestCode  String   permissions  int   grantResults    super onRequestPermissionsResult requestCode  permissions  grantResults   if  requestCode    REQUEST PERMISSIONS     if  grantResults length  gt  0  amp  amp  grantResults 0     PackageManager PERMISSION GRANTED     boolean permission   true  getfile dir    obj adapter   new PDFAdapter getApplicationContext    fileList   lv pdf setAdapter obj adapter      else   Toast makeText getApplicationContext       Please allow the permission     Toast LENGTH LONG  show                activity pdf xml    lt  xml version    1 0  encoding    utf-8   gt   lt LinearLayout xmlns android    http   schemas android com apk res android amp  8221  android layout width    match parent    android background     ffffff    android layout height    match parent    android orientation    vertical    gt    lt com github barteksc pdfviewer PDFView android id      id pdfView    android layout margin    10dp    android layout width    match parent    android layout height    match parent      gt   lt  LinearLayout gt    PdfActivity java   package com pdffilefromsdcard   import android os Bundle  import android support annotation Nullable  import android support v7 app AppCompatActivity  import android util Log   import com github barteksc pdfviewer PDFView  import com github barteksc pdfviewer listener OnLoadCompleteListener  import com github barteksc pdfviewer listener OnPageChangeListener  import com github barteksc pdfviewer scroll DefaultScrollHandle  import com shockwave pdfium PdfDocument   import java io File  import java util List   public class PdfActivity extends AppCompatActivity implements OnPageChangeListener OnLoadCompleteListener    PDFView pdfView  Integer pageNumber   0  String pdfFileName  String TAG    PdfActivity     int position -1    Override protected void onCreate  Nullable Bundle savedInstanceState    super onCreate savedInstanceState   setContentView R layout activity pdf   init       private void init    pdfView   PDFView findViewById R id pdfView   position   getIntent   getIntExtra    position    -1   displayFromSdcard       private void displayFromSdcard     pdfFileName   MainActivity fileList get position  getName     pdfView fromFile MainActivity fileList get position    defaultPage pageNumber   enableSwipe true    swipeHorizontal false   onPageChange this   enableAnnotationRendering true   onLoad this   scrollHandle new DefaultScrollHandle this    load       Override public void onPageChanged int page  int pageCount    pageNumber   page  setTitle String format     s  s    s     pdfFileName  page   1  pageCount       Override public void loadComplete int nbPages    PdfDocument Meta meta   pdfView getDocumentMeta    printBookmarksTree pdfView getTableOfContents       -          public void printBookmarksTree List lt PdfDocument Bookmark gt  tree  String sep    for  PdfDocument Bookmark b   tree     Log e TAG  String format     s  s  p  d     sep  b getTitle    b getPageIdx       if  b hasChildren      printBookmarksTree b getChildren    sep      -                Thanks

User · Answer

Try the below code  I am using this code for opening a PDF file  You can use it for other files also   File file   new File Environment getExternalStorageDirectory                          Report pdf    Uri path   Uri fromFile file   Intent pdfOpenintent   new Intent Intent ACTION VIEW   pdfOpenintent setFlags Intent FLAG ACTIVITY CLEAR TOP   pdfOpenintent setDataAndType path   application pdf    try       startActivity pdfOpenintent     catch  ActivityNotFoundException e         If you want to open files  you can change the setDataAndType path   application pdf    If you want to open different files with the same intent  you can use Intent createChooser intent   Open in        For more information  look at How to make an intent with multiple actions

User · Answer

Use this code  which helped me to open all types of files        private void openFile File url         try            Uri uri   Uri fromFile url            Intent intent   new Intent Intent ACTION VIEW           if  url toString   contains   doc      url toString   contains   docx                     Word document             intent setDataAndType uri   application msword              else if  url toString   contains   pdf                     PDF file             intent setDataAndType uri   application pdf              else if  url toString   contains   ppt      url toString   contains   pptx                     Powerpoint file             intent setDataAndType uri   application vnd ms-powerpoint              else if  url toString   contains   xls      url toString   contains   xlsx                     Excel file             intent setDataAndType uri   application vnd ms-excel              else if  url toString   contains   zip                     ZIP file             intent setDataAndType uri   application zip              else if  url toString   contains   rar                    RAR file             intent setDataAndType uri   application x-rar-compressed              else if  url toString   contains   rtf                     RTF file             intent setDataAndType uri   application rtf              else if  url toString   contains   wav      url toString   contains   mp3                     WAV audio file             intent setDataAndType uri   audio x-wav              else if  url toString   contains   gif                     GIF file             intent setDataAndType uri   image gif              else if  url toString   contains   jpg      url toString   contains   jpeg      url toString   contains   png                     JPG file             intent setDataAndType uri   image jpeg              else if  url toString   contains   txt                     Text file             intent setDataAndType uri   text plain              else if  url toString   contains   3gp      url toString   contains   mpg                      url toString   contains   mpeg      url toString   contains   mpe      url toString   contains   mp4      url toString   contains   avi                     Video files             intent setDataAndType uri   video                else               intent setDataAndType uri                             intent addFlags Intent FLAG ACTIVITY NEW TASK           context startActivity intent         catch  ActivityNotFoundException e            Toast makeText context   No application found which can open the file   Toast LENGTH SHORT  show

User · Answer

Try this one   add this code to your manifest file    lt provider             android name  androidx core content FileProvider              android authorities    applicationId  provider              android exported  false              android grantUriPermissions  true  gt               lt meta-data                 android name  android support FILE PROVIDER PATHS                  android resource   xml provider paths   gt           lt  provider gt    provide your path type path xml   lt paths xmlns android  http   schemas android com apk res android  gt       lt external-path name  external files  path      gt   lt  paths gt    and add this code to your functionality   File file   new File tempPathNameFileString   Intent viewPdf   new Intent Intent ACTION VIEW   viewPdf setFlags Intent FLAG ACTIVITY CLEAR TOP   Intent FLAG ACTIVITY NEW TASK   Uri URI   FileProvider getUriForFile ReportsActivity this  ReportsActivity this getApplicationContext   getPackageName       provider   file   viewPdf setDataAndType URI   application pdf    viewPdf addFlags Intent FLAG GRANT READ URI PERMISSION   ReportsActivity this startActivity viewPdf

User · Answer

You can get any file mime type with getContentResolver   getType uri   protected static void openFile Context context  Uri localUri           Intent i   new Intent Intent ACTION VIEW           i addFlags Intent FLAG GRANT READ URI PERMISSION           i setDataAndType localUri  context getContentResolver   getType localUri            context startActivity i

User · Answer

To Open a File in Android Programatically you can use this code  -   We use File Provider for internal file access  You can also see details about File Provider here in this linkfileprovidr1 file provider2 file provider3    Create a File Provider and defined in Manifest File     lt provider     android name  android support v4 content FileProvider      android authorities  com packagename app fileprovider      android exported  false      android grantUriPermissions  true  gt        lt meta-data         android name  android support FILE PROVIDER PATHS          android resource   xml file paths  gt       lt  meta-data gt    lt  provider gt    Define file path in resources file    lt  xml version  1 0  encoding  utf-8   gt   lt paths xmlns android  http   schemas android com apk res android  gt       lt external-path         name  my images          path  Android data com packagename app files Pictures    gt        lt external-files-path name  vivalinkComProp  path  Android data com vivalink app vivalinkComProp docs   gt       lt external-path         name  external          path       gt       lt external-files-path         name  external files          path       gt       lt cache-path         name  cache          path       gt       lt external-cache-path         name  external cache          path       gt       lt files-path         name  files          path       gt    lt  paths gt    Define Intent For View  String directory path   Environment getExternalStorageDirectory   getPath       MyFile    String targetPdf   directory path   fileName     pdf   File filePath   new File targetPdf    Intent intentShareFile   new Intent Intent ACTION VIEW   File fileWithinMyDir   new File targetPdf   Uri bmpUri   FileProvider getUriForFile activity   com packagename app fileprovider   filePath   if  fileWithinMyDir exists          intentShareFile setDataAndType bmpUri  application pdf        intentShareFile addFlags Intent FLAG ACTIVITY NEW TASK       intentShareFile setFlags Intent FLAG GRANT READ URI PERMISSION   Intent FLAG ACTIVITY CLEAR TOP       startActivity Intent createChooser intentShareFile   Open File Using             You can use different way to create a file provider in android   Hope this will help you

User · Answer

Try the following code   File file   new File path      path   your file path lastSlash   file toString   lastIndexOf        if  lastSlash  gt   0        fileName   url toString   substring lastSlash   1       if  fileName endsWith  pdf          mimeType    application pdf     else       mimeType   MimeTypeMap getSingleton   getMimeTypeFromExtension      MimeTypeMap getFileExtensionFromUrl path       Uri uri path   Uri fromFile file    Intent intent   new Intent android content Intent ACTION VIEW   intent putExtra PATH  path   intent putExtra MIMETYPE  mimeType   intent setType mimeType   intent setDataAndType uri path  mimeType    startActivity intent

User · Answer

MimeTypeMap getSingleton   getExtensionFromMimeType file getName       Probably  this is the easiest solution   https   developer android com reference android webkit MimeTypeMap  https   developer android com reference java net URLConnection html guessContentTypeFromName java lang String   private void openFile File file         Uri uri   Uri fromFile file        Intent intent   new Intent Intent ACTION VIEW        intent setDataAndType uri  MimeTypeMap getSingleton   getExtensionFromMimeType file getName            intent addFlags Intent FLAG ACTIVITY NEW TASK       startActivity Intent createChooser intent   Open     file getName       with

[android] Open a selected file (image, pdf, ...) programmatically from my Android Application?

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