Develop Reference

Android - How to check if file manager is available?

My app is using a custom type of file that can be saved onto the external memory and shared.
I want to use the file picker to pick one file and load it. Here is my code :
Uri uri = Uri.fromFile("path/to/folder");
Intent intent = new Intent(Intent.ACTION_PICK, uri);
try {
startActivityForResult(Intent.createChooser(intent, "Select a file"), 123);
} catch (android.content.ActivityNotFoundException e) {
Toast.makeText(this, "Error fileChooser",Toast.LENGTH_SHORT).show();
Log.e("Dan", "onOptionsItemSelected: Error filechooser ActivityNotFoundException", e);
}
This code works absolutely perfectly on my genymotion emulator and my Nexus 4 on CyanogenMod and call the file manager to browse to the folder.
But when I try on my brand new LG G4, it doesn't work.
The biggest problem is that I get no error message, just a file picker with the good title and a message "No app can perform this action".
How to check if a file picker is available? (to provide a simple alternative if needed)

Try this:
PackageManager packageManager = getActivity().getPackageManager();
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("file/*");
List<ResolveInfo> list = packageManager.queryIntentActivities(intent,
PackageManager.GET_ACTIVITIES));
Then, check the size of the list, if it is 0, then there is no file explorer.

How to use bitmap to send to another app

can someone help me how to send an image to another application in android?
I want to send an image to be used as wallpaper, BBM display picture, and other applications that can use it (like WhatsApp, contacts, etc.)
I use this code, but it can only be used for sending text and not images as I want
Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_TEXT, "This is my text to send.");
sendIntent.setType("text/plain");
startActivity(sendIntent);
Then I tried to use this code to set the wallpaper
public void setAsWallpaper(Bitmap bitmap) {
try {
WallpaperManager wm = WallpaperManager.getInstance(_context);
wm.setBitmap(bitmap);
//disinimas
Toast.makeText(_context,
_context.getString(R.string.toast_wallpaper_set),
Toast.LENGTH_SHORT).show();
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(_context,
_context.getString(R.string.toast_wallpaper_set_failed),
Toast.LENGTH_SHORT).show();
}
}
the problem with the code, bitmap images directly applied as wallpaper. I wanted like sending text above, the user can choose to use another application. So I want a bitmap image that can later be used for wallpaper, BBM display picture, or other applications that support it
bitmap variable already contains the image that I want to, the images obtained from the internet with this code:
Bitmap bitmap = ((BitmapDrawable) fullImageView.getDrawable())
.getBitmap();
I use this code and its work, but give me a message BBM: File not found, WhatsApp: File is not an image:
Bitmap icon = bitmap;
Intent share = new Intent(Intent.ACTION_ATTACH_DATA);
share.setType("image/jpeg");
ContentValues values = new ContentValues();
values.put(Images.Media.TITLE, "title");
values.put(Images.Media.MIME_TYPE, "image/jpeg");
Uri uri = getContentResolver().insert(Media.EXTERNAL_CONTENT_URI,
values);
OutputStream outstream;
try {
outstream = getContentResolver().openOutputStream(uri);
icon.compress(Bitmap.CompressFormat.JPEG, 100, outstream);
outstream.close();
} catch (Exception e) {
System.err.println(e.toString());
}
share.putExtra(Intent.EXTRA_STREAM, uri);
startActivity(Intent.createChooser(share, "Share Image"));

Thanks for your help Antrromet, finally I solved my problem with the following code:
Bitmap icon = bitmap;
// Intent share = new Intent(Intent.ACTION_SEND);
// share.setType("image/*");
ContentValues values = new ContentValues();
values.put(Images.Media.TITLE, "title");
values.put(Images.Media.MIME_TYPE, "image/*");
Uri uri = getContentResolver().insert(Media.EXTERNAL_CONTENT_URI,
values);
OutputStream outstream;
try {
outstream = getContentResolver().openOutputStream(uri);
icon.compress(Bitmap.CompressFormat.JPEG, 100, outstream);
outstream.close();
} catch (Exception e) {
System.err.println(e.toString());
}
Intent intent = new Intent(Intent.ACTION_ATTACH_DATA);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.setDataAndType(uri, "image/*");
intent.putExtra("mimeType", "image/*");
this.startActivity(Intent.createChooser(intent, "Set as:"));
Now the image can be used as Wallpaper, BBM profile picture, WA display Picture, Coontact display picture, etc. Thanks

Did you try using the following code? It is use to send binary data to other apps.
Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND);
shareIntent.putExtra(Intent.EXTRA_STREAM, uriToImage);
shareIntent.setType("image/jpeg");
startActivity(Intent.createChooser(shareIntent, getResources().getText(R.string.send_to)));
Or if you dont have the URI with you but have the Bitmap instead, then try using the code as given here.
UPDATE:
Setting wallpaper and profile picture for BBM are totally different things and there is no common intent for them. For setting the wallpaper, you can try the following as given here.
Intent intent = new Intent(Intent.ACTION_ATTACH_DATA);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.setDataAndType(uri, "image/jpeg");
intent.putExtra("mimeType", "image/jpeg");
this.startActivity(Intent.createChooser(intent, "Set as:"));
For BBM, the APIs are not open for changing the user image. So you cannot do that through your app.

sharing image with whatsapp in android

I have image in assets folder and need to share it with whatsapp application
I tried this code , it keeps give me sharing failed try again ! what's wrong ?!
Intent share = new Intent(Intent.ACTION_SEND);
share.setType("image/*");
share.setPackage("com.whatsapp");
// share.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new File("file:///assets/epic/adv.png")));
share.putExtra(Intent.EXTRA_STREAM, Uri.parse("file:///assets/epic/adv.png"));
this.startActivity(Intent.createChooser(share, "share_via"));

This code for share image via whatsapp worked fine for me .
public void shareImageWhatsApp() {
Bitmap adv = BitmapFactory.decodeResource(getResources(), R.drawable.adv);
Intent share = new Intent(Intent.ACTION_SEND);
share.setType("image/jpeg");
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
adv.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
File f = new File(Environment.getExternalStorageDirectory()
+ File.separator + "temporary_file.jpg");
try {
f.createNewFile();
new FileOutputStream(f).write(bytes.toByteArray());
} catch (IOException e) {
e.printStackTrace();
}
share.putExtra(Intent.EXTRA_STREAM,
Uri.parse( Environment.getExternalStorageDirectory()+ File.separator+"temporary_file.jpg"));
if(isPackageInstalled("com.whatsapp",this)){
share.setPackage("com.whatsapp");
startActivity(Intent.createChooser(share, "Share Image"));
}else{
Toast.makeText(getApplicationContext(), "Please Install Whatsapp", Toast.LENGTH_LONG).show();
}
}
private boolean isPackageInstalled(String packagename, Context context) {
PackageManager pm = context.getPackageManager();
try {
pm.getPackageInfo(packagename, PackageManager.GET_ACTIVITIES);
return true;
} catch (NameNotFoundException e) {
return false;
}
}

You have several problems.
First, file:///assets/ is not a valid Uri on any version of Android. Your own application can refer to its own assets via file:///android_asset/.
Second, only you can access your own assets via file:///android_asset/ -- you cannot pass such a Uri to third-party apps. Either copy the file from assets into internal storage and use FileProvider, or you can try my StreamProvider and try to share the data straight out of assets/.
Third, there is no guarantee that com.whatsapp exists on the device, or that com.whatsapp will support ACTION_SEND of file:/// Uri values with a MIME type of image/*, and so you may crash with an ActivityNotFoundException.
Fourth, the user might want to share this image via some other means than WhatsApp. Please allow the user to share where the user wants, by removing the setPackage() call from your Intent.

This worked for me
Bitmap imgBitmap=BitmapFactory.decodeResource(getResources(),R.drawable.image);
String imgBitmapPath= MediaStore.Images.Media.insertImage(getContentResolver(),imgBitmap,"title",null);
Uri imgBitmapUri=Uri.parse(imgBitmapPath);
Intent shareIntent=new Intent(Intent.ACTION_SEND);
shareIntent.setType("image/*");
shareIntent.putExtra(Intent.EXTRA_STREAM,imgBitmapUri);
startActivity(Intent.createChooser(shareIntent,"share image using"));

photo share intent in android

Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
shareIntent.setType("image/*");
Uri uri = Uri.parse(pathToImage);
shareIntent.putExtra(Intent.EXTRA_STREAM, uri);
return shareIntent;
i was used above code for sharing image on social sites.when i posting image on facebook only text is posted and image is not coming.how can we get the image and pathtoimage is string variable i am getting sever image path and stored in string variable.but it is not working.please give any solutions for my above question.?

Try this
Bitmap icon = mBitmap;
Intent share = new Intent(Intent.ACTION_SEND);
share.setType("image/jpeg");
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
icon.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
File f = new File(Environment.getExternalStorageDirectory() + File.separator + "temporary_file.jpg");
try {
f.createNewFile();
FileOutputStream fo = new FileOutputStream(f);
fo.write(bytes.toByteArray());
} catch (IOException e) {
e.printStackTrace();
}
share.putExtra(Intent.EXTRA_STREAM, Uri.parse("file:///sdcard/temporary_file.jpg"));
startActivity(Intent.createChooser(share, "Share Image"));
Refer more links
http://android-developers.blogspot.in/2012/02/share-with-intents.html
Android Share Via Dialog
Image post into facebook wall from android sdcard

This is the solution I came up with:
This function allows you to share to instagram, facebook or any other app if you know the package name. If the app is not installed it redirects to the Play Store. If you send "others" as parameters, you will display a list of apps that also support image sharing.
shareImageIntent(mActivity,"image/*", "/storage/emulated/0/Pictures/Instagram/IMG_20150120_095603.jpg", "Instagram Sharing test. #Josh","com.instagram.android"); // parameters - for facebook: "com.facebook.katana" , to display list of other apps you can share to: "others"
public void shareImageIntent(Activity a,String type, String mediaPath, String caption, String app){
Intent intent = mContext.getPackageManager().getLaunchIntentForPackage(app);
if ((intent != null)||(app.equals("others"))){
// Create the new Intent using the 'Send' action.
Intent share = new Intent(Intent.ACTION_SEND);
if(!app.equals("others"))
share.setPackage(app);
// Set the MIME type
share.setType(type);
// Create the URI from the media
File media = new File(mediaPath);
Uri uri = Uri.fromFile(media);
// Add the URI and the caption to the Intent.
share.putExtra(Intent.EXTRA_STREAM, uri);
share.putExtra(Intent.EXTRA_TEXT, caption);
// Broadcast the Intent.
//startActivity(Intent.createChooser(share, "Share to"));
a.startActivity(share);
}
else{
intent = new Intent(Intent.ACTION_VIEW);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
//intent.setData(Uri.parse("market://details?id="+"com.instagram.android"));
intent.setData(Uri.parse("market://details?id="+app));
a.startActivity(intent);
}
}

You can not use Intent to post to Facebook. They have specifically blocked this. You have to either use their SDK or copy it to the clipboard and have the user paste it after the facebook interface opens. I am having this same problem.

Attach an image to a contact

I am having exactly the same problem as described here.
I am trying to use this Intent:
android.provider.ContactsContract.Intents.ATTACH_IMAGE
Starts an Activity that lets the user pick a contact to attach an image to.
Sounds suitable to me but unfortunately results in an ActivityNotFoundException.
Code:
import android.provider.ContactsContract;
...
try {
Intent myIntent = new Intent();
myIntent.setAction(ContactsContract.Intents.ATTACH_IMAGE);
myIntent.setData(imageUri);
startActivity(myIntent);
} catch (ActivityNotFoundException anfe) {
Log.e("ImageContact",
"Firing Intent to set image as contact failed.", anfe);
showToast(this, "Firing Intent to set image as contact failed.");
}
I cannot find any error in the code above. The imageUri is correct for following code is working perfectly:
Code:
try {
Intent myIntent = new Intent();
myIntent.setAction(Intent.ACTION_ATTACH_DATA);
myIntent.setData(imageUri);
startActivity(myIntent);
} catch (ActivityNotFoundException anfe) {
Log.e("ImageContact",
"Firing Intent to set image as contact failed.", anfe);
showToast(this, "Firing Intent to set image as contact failed.");
}
As mentioned in the link this results in a another menu before getting to the contacts. That is acceptable but not perfect.

If you already know the file path you can use:
values.put(Images.Media.DISPLAY_NAME, fileName);
values.put(Images.Media.DATE_ADDED, currentTime);
values.put(Images.Media.MIME_TYPE, "image/jpeg");
values.put(Images.Media.ORIENTATION, 0);
values.put(Images.Media.DATA, filePath);
values.put(Images.Media.SIZE, size);
getContentResolver().insert(Images.Media.EXTERNAL_CONTENT_URI, values);
This way no nead to open a bitmap stream if you already have the file.

I'm having this problem too. I've had a little more success using by setting the Uri using the following code taken from http://developer.android.com/guide/topics/providers/content-providers.html
However, after selecting a contact and cropping the image the new contact icon still is not set?
// Save the name and description of an image in a ContentValues map.
ContentValues values = new ContentValues(3);
values.put(Media.DISPLAY_NAME, "road_trip_1");
values.put(Media.DESCRIPTION, "Day 1, trip to Los Angeles");
values.put(Media.MIME_TYPE, "image/jpeg");
// Add a new record without the bitmap, but with the values just set.
// insert() returns the URI of the new record.
Uri uri = getContentResolver().insert(Media.EXTERNAL_CONTENT_URI, values);
// Now get a handle to the file for that record, and save the data into it.
// Here, sourceBitmap is a Bitmap object representing the file to save to the database.
try {
OutputStream outStream = getContentResolver().openOutputStream(uri);
sourceBitmap.compress(Bitmap.CompressFormat.JPEG, 50, outStream);
outStream.close();
} catch (Exception e) {
Log.e(TAG, "exception while writing image", e);
}