Develop Reference

Intent with ACTION_VIEW and uri pointing to a ParcelFileDescriptor in EXTRA_STREAM

what is the correct way how I should form the intent to show content from my app in 3rd party viewers? I need to show images in gallery (or any other image viewer), pdfs in some pdf reader,..
Data gets server through a content provider which implements the openFile() method and returns a output pipe..
ParcelFileDescriptor[] pipe=ParcelFileDescriptor.createPipe();
...
ParcelFileDescriptor.AutoCloseOutputStream stream = new ParcelFileDescriptor.AutoCloseOutputStream(pipe[1]);
PipeThread pipeThread = new PipeThread(fileContents, stream);
pipeThread.start();
return pipe[0];
For images I use this:
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setType("image/*");
intent.putExtra(Intent.EXTRA_STREAM, uri);
I'm creating then a chooser for this intent as usual that's not the issue..
My problem is that although I see for example the Photos app in the chooser, I just cannot open the file in it..It just only opens the gallery with my images.
It's working when I use the action send, apps like gmail, drive, dropbox,..all of them are able to correctly read the image from the provider.
Also Skitch seems to be the only one app which I have tested it on that is able to open the image also using the Intent.ACTION_VIEW action..
Please don't tell me I should just send the URI, I really need to provide the file as a stream, or somehow as a serie of bytes (IPC limitations would be probably against this). I can't save the file to a public directory.

So the issue was that have been setting Intent type and data in two separate method calls..
What I didn't know is that Intent.setType() clears its data and Intent.setData() clears its type..
When I set both data and type through the Intent.setDataAndType() method call, it works even for URI pointing to a stream.
Unfortunately the final implementation is still not working flawlessly everywhere.
It works in default android gallery app, in G+ Photos app, in QuickPic, in Sony gallery app, but it does not work in default HTC gallery neither in default Samsung gallery.
Its just a pity, that its actually not that much dependent on my implementation as on how is it implemented in the 3rd party viewer app.

Tutorial / reference to launch ACTION_EDIT with image and return image

I'm writing an app that uses the camera. I want to lauch an intent to allow users to annotate the resulting image with lines and text, AND I would like to provide the user with a list of appropriate image editting apps they can use, but I'm coming across these problems:
1. Not all image editting apps appear in the list when I perform this code:
editIntent = new Intent();
editIntent.setAction(Intent.ACTION_EDIT);
Uri imageToEditUri = selectedPhotoLocation; // Uri of existing photo
String imageToEditMimeType = "image/*";
editIntent.setDataAndType(imageToEditUri, imageToEditMimeType);
startActivityForResult(Intent.createChooser(editIntent,"Edit Image"), IMPLICIT_EDIT_IMAGE);
Is there a way to get a list of apps that will respond to Intent.ACTION_EDIT?
2. PS Express is the only app I've found that returns the Uri of the editted image in the data.getDate() Uri returned to OnActivityResult(), with other apps the user is forced to save, remember the location, and reselect the editted image.
Is there a way to know what apps return the Uri of the image to OnActivityResult()

Not all image editting apps appear in the list when I perform this code
Just because an app implements image editing does not necessarily mean that it is set up to allow third parties to link to their image-editing activities.
Is there a way to get a list of apps that will respond to Intent.ACTION_EDIT?
If you mean that you want to do this programmatically at runtime, see Jedil's answer.
Is there a way to know what apps return the Uri of the image to OnActivityResult()
No, except for those applications that have documentation on how developers should integrate with them.

First question answer:
try queryIntentActivities
Intent editIntent = new Intent(android.content.Intent.ACTION_EDIT);
List<ResolveInfo> resInfo = getPackageManager().queryIntentActivities(editIntent, 0);

Android load image from url and save to phone

Currently I have the following:
Intent intent = new Intent();
intent.setAction(android.content.Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File(mediaLoc)), "image/" + type);
context.startActivity(intent);
This was because the app used to download images from urls and saved them into the sdcard before viewing. But now I want to change the implementation to show the image from a url in the default image viewer when ACTION_VIEW is called and give them the option to save. Is this possible with ACTION_VIEW? I'm asking because I wish to use the default image viewer in the phone as it has already handled the zoom functions.

You would have to make a custom action_view for it.

Play Video on the Browser

I tried to open the video from url with Intent.ACTION_VIEW, and it was successful.
But, the problem is, after the browser appeared for a second and it's automatically minimize and the front is the activity on the apps.
Intent intent = new Intent(android.content.Intent.ACTION_VIEW);
Uri data = Uri.parse("the url of the video with format .m3u8");
intent.setData(data);
startActivity(intent);
I'm expecting exactly the same way when i put the URL into the browser manually, but without minimize the browser when it has already been launched.
Need some flags? grateful for any response and suggestions.

I bet that the browser is just quitting as a result of an inability to display the content. If you plug in the video url to the browser manually, does it work? What is the filetype of the content you are trying to display?

Have you tried explicitly setting data type by using setDataAndType(Uri data, String type) where mime type is "audio/x-mpegurl" (the full mime type is "audio/x-mpegurl; charset=UTF-8"). You might have some switch statement to check URL user has clicked to force type in case link points to ".m3u8".

Android - Call default browser with and redirect to a designated url

Hi
I want to write an app to call default browser and redirect to a designated url.
Any suggestion to 1)call the default browser, 2)redirect to a designated url.
Thanks

you just want to launch an ACTION_VIEW intent with the Uri of the webpage as your data element :
Intent httpIntent = new Intent(Intent.ACTION_VIEW);
httpIntent.setData(Uri.parse("http://www.bbc.co.uk"));
startActivity(httpIntent);

To open the default browser use an Intent with the action VIEW. To tell the browser which page to load us the data-part of the Intent.
Example:
Intent browse = new Intent(Intent.ACTION_VIEW, Uri.parse("http://stackoverflow.com"));
startActivity(browse);
Since this is a basic task in Android you might want to read some basics about Intents in Android.