I have mange to store on my app imges files.
the directory path that contains the images is -
/data/data/yourapp/app_data/imageDir
now what im want to do is to add the relevent image to an intent -
so i have used the next code for the text parts -
Intent share = new Intent(android.content.Intent.ACTION_SEND);
share.setType("text/plain");
share.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
share.putExtra(Intent.EXTRA_SUBJECT, name);
share.putExtra(Intent.EXTRA_TEXT, body);
startActivity(Intent.createChooser(share, "Share with ?"));
But i don'tunderstand how can i add an image file-
by the way i have an option to get the full path of the image, but i sure don't understand how to add it to intent - so thanks for any kind of help
Let me try it clear it a bit -
if let's say i want to add the image to an e-mail - could it be enough to add to intent the image uri on the memory?!? and if so, what should i add to tne intent than, thanks
maybe to pass the whole image,you can do it just like passing objects of classes
then you will have to use parceable and all that which will be very tedious for you,but instead of sending the whole image(which may be very big sometimes)you can just pass the url of the image and fetch the url on the other activity and operate on it.It's a more efficient way to do it....
if you really want to pass the image you can convert the image into it's byte code using bitmapdecodefactory and send it,and then convert it back again....
Unless you plan on sending a very small image (kilobytes) I would actually recommend against sending images this way. It's usually better to simply send the URI or file system path, and allow the caller to retrieve the image that way.
Place it in the "extras" or similar within the intent you plan on sending.
If you plan on using internal storage (versus external images or media paths on the SDCard) you'll most likely want to create a ContentProvider / ContentResolver that other applications can use to get those image files from your sandboxed protected storage for your app.
Related
I'm now writing an app using android studio. In the main activity, I wrote a function to take a photo by using camera, then I want to pass this photo to the second activity. In the second activity, I want to upload this photo to a web API, and the type of the uploaded image has to be "JPEG".
I'm not sure I should use bundle or not. Or should I use "URI"? But when I call this:
URI photo_uri = photo.toURI();
There would be some problem. I couldn't run it. How can I fix this? This is what I wrote now, I use bundle:
// photo -> photo_uri, "photo.toURI()" doesn't work
Intent intent = new Intent(this, Main4Activity.class);
intent.putExtra("URI", photo_uri);
startActivity(intent);
And how can I receive the data(in JPEG type) in another activity?
You can send the file or uri path to second activity. After getting file or uri path you can convert that path into the file and upload it on the server.
You should check the Android docs about using the camera, there you have how to get the Uri, you must NEVER try to share the Bitmap itself.
About passing data between activities, you should use the Bundle so check this doc about Parcelables and Bundles which is the way to share data.
Regards!
As the title suggests, i'm having an option to upload an image in my app.
I would like to have two options: Click a new picture & Select from gallery.
Gallery selection is working fine on all devices using this code:
Intent in = new Intent();
in.setType("image/*");
in.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(in, getString(R.string.selectpicture)), 100);
The problem is with Click a new picture.
I want to use other camera apps installed on the device to get the image.
This code should save the image user clicks at the specified path.
Intent m_intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
imageUri = getImageUri();
m_intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
startActivityForResult(m_intent, REQUEST_IMAGE_CAPTURE);
But what happens is, the EXTRA_OUTPUT is not respected by all camera apps.
Also if memory is low, my app is killed by the system which makes things more complicated.
So, what's the best way to enable user to click a new picture and get the image path in my app?
If using third party libraries is better, which one's are reliable?
the EXTRA_OUTPUT is not respected by all camera apps.
Any time you delegate anything to a third party app, you can run into problems.
Also if memory is low, my app is killed by the system which makes things more complicated.
You need to handle this anyway. Save the value you put in EXTRA_OUTPUT in the saved instance state Bundle.
what's the best way to enable user to click a new picture and get the image path in my app?
If you wish to stick with ACTION_IMAGE_CAPTURE, I'd go with this triage:
If there is an image in the location you provided to EXTRA_OUTPUT, use it
If not, and getData() on the Intent given to you in onActivityResult() returns a Uri (and not null), use that (and if you truly need a File, use ContentResolver and openInputStream() with the Uri and copy the contents into your own file)
If neither are true, and getParcelableExtra("data") returns a value, save that Bitmap to a file
If none of those are true, suggest to the user to get a different camera app, perhaps pointing them to one that you have tried and know works
Or, take the picture yourself, directly or using a library like mine.
I am using the ACTION_EDIT intent to launch the Android image editor in order to edit an image:
Intent editIntent = new Intent(Intent.ACTION_EDIT);
editIntent.setDataAndType(uri, "image/*");
When launching the intent with result, how do I retrieve the path of the edited / saved image?
I am using the ACTION_EDIT intent to launch the Android image editor in order to edit an image
Bear in mind that Android does not have an image editor. Some Android devices might ship with an image editor, and some users may have installed an image editor off of the Play Store or other distribution channels.
Also, since you know what the MIME type is of uri, you will have better results if you put the real MIME type into your Intent.
When launching the intent with result, how do I retrieve the path of the edited / saved image?
First, ACTION_EDIT does not support "launch the intent with result", which I am interpreting as meaning startActivityForResult(). As the ACTION_EDIT documentation states, there is no output. Just use startActivity().
Beyond that, you are the one who provided the Uri in the Intent for the editor, so at that point in time, you already knew what the Uri was that you handed to the editor. Hang onto that Uri in your saved instance state, so that you can ensure that you have the Uri even if Android terminates your process while the user is editing the image. While there is no requirement that an ACTION_EDIT Intent save the edited image back to the location specified by the Uri used to load the image, one hopes that most ACTION_EDIT activities do just that.
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.
I would like to ask if there is a possibility to send raw data to the other application? Example: taking pictures from a custom camera and send to other application. I observe that using intent is just only sending data which is already saved to storage, but i want that let the 2nd application decided either they save the image or discard. Just like in the tutorial of on how to make custom camera but in that instance, only one application running and only startActivityForResult and the listener which is onResultActivity. In my case, I want that from my custom camera, pass the raw data to the other application and let the other application manage the raw image receive. I call this raw image because this image is in the buffer and not on the storage. Is that possible to pass the raw image/data to other application?
You would need to save the file and pass the URI to the file via an Intent.
Uri image = Uri.parse(fileName);
Intent myIntent = new Intent(Intent.ACTION_VIEW, image);
myIntent.setType("image/*");
Intent chooserIntent = Intent.createChooser(myIntent, "Open Image");
startActivity(chooserIntent);