Develop Reference

how to get pdf from internal storage in android Using WebView or AnyConcept

how to get pdf from internal storage in android Using WebView or AnyConcept. i have to get pdf in an activity from internal storage.Can anyone of u guys let me know about this .Thank You.

String filename = null;
File file = new File(Environment.getExternalStorageDirectory().getAbsolutePath() +"/"+ filename);
Intent target = new Intent(Intent.ACTION_VIEW);
target.setDataAndType(Uri.fromFile(file),"application/pdf");
target.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
Intent intent = Intent.createChooser(target, "Open File");
startActivity(intent);
and give pdf filename

Want to pick image files from a specific folder but have all the files of gallery instead

Want to pick image files from a specific folder vaibhav but have all the files of gallery instead.
Code
File dir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "Vaibhav/");
Log.e("Dir path",dir.toString());
dir.exists();
Uri uri = Uri.parse(dir.toString());
Intent browseIntent = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.getContentUri(uri.toString()));
browseIntent.setType("image/jpg");
startActivityForResult(browseIntent, BROWSE_REQUEST);

Following Code Just Works Fine:
public void openFolder()
{
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
Uri uri = Uri.parse(Environment.getExternalStorageDirectory().getPath()
+ "/Vaibhav/");
intent.setDataAndType(uri, "image/jpg");
startActivity(Intent.createChooser(intent, "Open folder"));
}

Use
browseIntent.setDataAndType(uri, "image/.");//Loads all image files
Instead of
browseIntent.setType("image/jpg");

Open PDF in Android

I would like to open a PDF file from my android application. I've searched how to do it in internet, and it seems very easy, but it doesn't work, at least in my mobile (Sony XPeria P).
File file = ....
Intent intent = new Intent(Intent.ACTION_VIEW,
Uri.fromFile (file));
intent.setType("application/pdf");
startActivity(intent);
When this code is executed, a window is opened asking to choose an application to show the PDF. When I choose the Adobe Reader, it's opened by no document is shown.
What I'm doing wrong?

Try this, Its working for me
//Method to open the pdf file in the PDF Viewer
public void OpenPDFFile() {
File pdfFile = new File(Environment.getExternalStorageDirectory(),"PdfFile.pdf");//File path
if (pdfFile.exists()) //Checking for the file is exist or not
{
Uri path = Uri.fromFile(pdfFile);
Intent objIntent = new Intent(Intent.ACTION_VIEW);
objIntent.setDataAndType(path, "application/pdf");
objIntent.setFlags(Intent. FLAG_ACTIVITY_CLEAR_TOP);
startActivity(objIntent);//Staring the pdf viewer
}
}

The setType("application/pdf") function removes all the previous data.

If the targetSdkVersion >= 24 we need to use file provider to get the Uri. See this post for details: https://stackoverflow.com/a/38858040/8192914
So, the final code would look something like this:
Uri pathUri = FileProvider.getUriForFile(getBaseContext(), context.getApplicationContext().getPackageName() + ".provider", finalFile);
Intent pdfViewerIntent = new Intent(Intent.ACTION_VIEW);
pdfViewerIntent.setDataAndType(pathUri, "application/pdf");
pdfViewerIntent.setFlags(Intent. FLAG_ACTIVITY_CLEAR_TOP);
pdfViewerIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
startActivity(pdfViewerIntent);

Opening pdf file programmatically is going into menu page?

How come every time i try to open a pdf file in my SDCARD using the following code, it doesn't actually open the pdf file itself, but goes into the menu of adobe reader? Is there anything wrong with my code?
Intent intent = new Intent();
File pdfFile = new File("/sdcard/sample.pdf");
Uri path = Uri.fromFile(pdfFile);
intent.setAction(Intent.ACTION_VIEW);
intent.setData(path);
intent.setType("application/pdf");
intent.setPackage("com.adobe.reader");
startActivity(intent);

No, there's nothing wrong. You've set the type to pdf and specified the package as adobe.reader. What that does is fire off an intent to launch the pdf in adobe reader. There's no way to display a pdf directly in your app without using a library (or writing code yourself) to render PDFs and display them.
Note that if you only set the type and not the package, the system will find whatever app is available to display PDFs
EDIT
You can try something like
Intent intent = new Intent(Intent.ACTION_VIEW);
File file = new File( filename );
intent.setDataAndType( Uri.fromFile( file ), "application/pdf" );
startActivity(intent);
or
Intent intent = new Intent();
intent.setPackage("com.adobe.reader");
intent.setDataAndType(Uri.fromFile(file), "application/pdf");
startActivity(intent);

Here I am giving my pdf file name. You give your file name.
private static String FILE = Environment.getExternalStorageDirectory().getPath()+"/TestPDF.pdf";
File file = new File(FILE);
if (file.exists()) {
Uri path = Uri.fromFile(file);
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(path, "application/pdf");
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
try {
startActivity(intent);
}
catch (ActivityNotFoundException e) {
Toast.makeText(this,
"No Application Available to View PDF",
Toast.LENGTH_SHORT).show();
}
}

Android - Obtain Uri to image on sdcard

I have the absolute path to a .jpg in the gallery.
How can I obtain a 'content://' Uri to this image, so that I can use this Uri like this:
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
I need to launch this intent so I can view the image.
How do I obtain the uri, when I have got only the absolute path to the image?

First you need to read the file from your SDCard.
See:
reading a specific file from sdcard in android
http://developer.android.com/reference/java/io/File.html
File dir = Environment.getExternalStorageDirectory();
File yourFile = new File(dir, "path/to/the/file/inside/the/sdcard.ext");
Then call the File.toUri() method to retreive the URI from the file.
Intent intent = new Intent(Intent.ACTION_VIEW, yourFile.toURI());
startActivity(intent);