ACTION_VIEW intent for a file with unknown MimeType

Question

My app has a feature that browse files on your phone and SD card and open them using other apps. I want a solution where I don't have to specify the MimeType and can work with any type of file.

Here is my code:

Intent myIntent = new Intent(Intent.ACTION_VIEW); myIntent.setData(Uri.fromFile(item)); startActivity(myIntent); 

However, I'm getting the following error:

android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.PICK dat=file:///sdcard/dropbox/test.pdf } 

Answer 1

This should detect the mimetype and open with default:

MimeTypeMap myMime = MimeTypeMap.getSingleton(); Intent newIntent = new Intent(Intent.ACTION_VIEW); String mimeType = myMime.getMimeTypeFromExtension(fileExt(getFile()).substring(1)); newIntent.setDataAndType(Uri.fromFile(getFile()),mimeType); newIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); try {     context.startActivity(newIntent); } catch (ActivityNotFoundException e) {     Toast.makeText(context, "No handler for this type of file.", Toast.LENGTH_LONG).show(); } 

Using this function:

private String fileExt(String url) {     if (url.indexOf("?") > -1) {         url = url.substring(0, url.indexOf("?"));     }     if (url.lastIndexOf(".") == -1) {         return null;     } else {         String ext = url.substring(url.lastIndexOf(".") + 1);         if (ext.indexOf("%") > -1) {             ext = ext.substring(0, ext.indexOf("%"));         }         if (ext.indexOf("/") > -1) {             ext = ext.substring(0, ext.indexOf("/"));         }         return ext.toLowerCase();      } } 

Answer 2

createChooser should do the trick:

Intent myIntent = new Intent(Intent.ACTION_VIEW); myIntent.setData(Uri.fromFile(item)); Intent j = Intent.createChooser(myIntent, "Choose an application to open with:"); startActivity(j);