Develop Reference

Opening a WhatsApp chat with a specific contact by clicking on a button in my app (Kotlin)

How can I Open a Whatsapp chat with a specific contact by clicking on a button in my app?
That's the code I use. It opens WhatsApp and let me search the contact I want to send the message to, but it doesn't open the WhatsApp chat with the specific contact number I gave it to.
whatsappButton.setOnClickListener{
var con = itemView.context
val textToShare = "*כח אדם*"
val phoneNumber = blogPost.phone
val sendIntent = Intent()
sendIntent.action = Intent.ACTION_SEND
sendIntent.type = "text/plain"
sendIntent.putExtra("jid", phoneNumber+"#s.whatsapp.net")
sendIntent.putExtra(Intent.EXTRA_TEXT, textToShare)
val extra = sendIntent.extras
startActivity(con,sendIntent,extra)
}

If you want send a message to a specific contact from Contacts app, you should first require permission to access contacts, get the number and try with this:
Intent sendIntent = new Intent("android.intent.action.MAIN");
sendIntent.setComponent(new ComponentName("com.whatsapp","com.whatsapp.Conversation"));
sendIntent.putExtra("jid", PhoneNumberUtils.stripSeparators("YOUR_PHONE_NUMBER")+"#s.whatsapp.net");
startActivity(sendIntent);
Ref: https://stackoverflow.com/a/40285262/2895571

Please check this answer here
Use the following bit of code:
Intent i = new Intent(Intent.ACTION_SENDTO, Uri.parse("content://com.android.contacts/data/" + c.getString(0)));
i.setType("text/plain");
i.setPackage("com.whatsapp"); // so that only Whatsapp reacts and not the chooser
i.putExtra(Intent.EXTRA_SUBJECT, "Subject");
i.putExtra(Intent.EXTRA_TEXT, "I'm the body.");
startActivity(i);

First option: using Uri to convert whatsapp web url into button:
open_whatsapp.setOnClickListener {
val url = "https://api.whatsapp.com/send?phone=XXXXXXXXXX"
val openWhatsappIntent = Intent(Intent.ACTION_VIEW)
openWhatsappInten.data = Uri.parse(url)
startActivity(openWhatsappInten)
}
Second option; this is used as a href in web development :
Tel: XXX XXXX XX
maybe you can add Html format into TextView (Html.fromHtml()) and enable links clickeable to open the whatsapp application.

if you want send message to particular contact in whatsapp , use below url and particular mobile no to the Intent(including Country code).
String url = "https://wa.me/";
Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(url+mobile_no));
startActivity(browserIntent);

Android : how to post a tweet only by Tweet (not by Direct Message?)

Here is the code I'm using to share a tweet :
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("text/plain");
intent.setPackage("com.twitter.android");
intent.putExtra(Intent.EXTRA_TEXT, "My text");
startActivity(intent);
This opens a popup enabling the user to share it by Tweet or by Direct Message, when I only want it to be shared by tweet. How can I do that?
Thank you very much.

Try this :
Intent tweet = new Intent(Intent.ACTION_VIEW);
tweet.setData(Uri.parse("http://twitter.com/?status=" + Uri.encode(message)));// replace message by your string message
startActivity(tweet);

sharing photo from android app

I have developed one wallpaper application in which I want to add share button to share a photo on whatsapp. Here is my code( but that code is only for any text msg) I want to share a photo.
Please respond with the code where in I can select a wallpaper from my application and send to whatsapp's particular contact.
case R.id.save:
InputStream y11 = getResources().openRawResource(to);
Bitmap b11 = BitmapFactory.decodeStream(y11);
Intent waIntent = new Intent(Intent.ACTION_SEND);
waIntent.setType("image/*");
waIntent.setPackage("com.whatsapp.android");
waIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, to);
startActivity(Intent.createChooser(waIntent, "Share with"));

Replace
waIntent.setType("text/plain");
with
waIntent.setType("image/png");

the package name is wrong. try: com.whatsapp
and this code is to share image via whatsapp
private void shareIt(Uri uri) {
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
sharingIntent.setType("image/*");
sharingIntent.setPackage("com.whatsapp");
sharingIntent.putExtra(Intent.EXTRA_TEXT,"Shared via my app");
sharingIntent.putExtra(Intent.EXTRA_STREAM, uri);
startActivity(Intent.createChooser(sharingIntent, "share with"));
}

Android: Share plain text using intent (to all messaging apps)

I'm trying to share some text using an intent:
Intent i = new Intent(android.content.Intent.ACTION_SEND);
i.setType("text/plain");
i.putExtra(android.content.Intent.EXTRA_TEXT, "TEXT");
and warping with chooser:
startActivity(Intent.createChooser(sms, getResources().getString(R.string.share_using)));
it works! but only for email app.
what I need is a general intent for all messaging app: emails, sms, IM (Whatsapp, Viber, Gmail, SMS...)
tried using android.content.Intent.ACTION_VIEW
and tried using i.setType("vnd.android-dir/mms-sms"); nothing helped...
("vnd.android-dir/mms-sms" shared using sms only!)

Use the code as:
/*Create an ACTION_SEND Intent*/
Intent intent = new Intent(android.content.Intent.ACTION_SEND);
/*This will be the actual content you wish you share.*/
String shareBody = "Here is the share content body";
/*The type of the content is text, obviously.*/
intent.setType("text/plain");
/*Applying information Subject and Body.*/
intent.putExtra(android.content.Intent.EXTRA_SUBJECT, getString(R.string.share_subject));
intent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody);
/*Fire!*/
startActivity(Intent.createChooser(intent, getString(R.string.share_using)));

New way of doing this would be using ShareCompat.IntentBuilder like so:
// Create and fire off our Intent in one fell swoop
ShareCompat.IntentBuilder
// getActivity() or activity field if within Fragment
.from(this)
// The text that will be shared
.setText(textToShare)
// most general text sharing MIME type
.setType("text/plain")
.setStream(uriToContentThatMatchesTheArgumentOfSetType)
/*
* [OPTIONAL] Designate a URI to share. Your type that
* is set above will have to match the type of data
* that your designating with this URI. Not sure
* exactly what happens if you don't do that, but
* let's not find out.
*
* For example, to share an image, you'd do the following:
* File imageFile = ...;
* Uri uriToImage = ...; // Convert the File to URI
* Intent shareImage = ShareCompat.IntentBuilder.from(activity)
* .setType("image/png")
* .setStream(uriToImage)
* .getIntent();
*/
.setEmailTo(arrayOfStringEmailAddresses)
.setEmailTo(singleStringEmailAddress)
/*
* [OPTIONAL] Designate the email recipients as an array
* of Strings or a single String
*/
.setEmailTo(arrayOfStringEmailAddresses)
.setEmailTo(singleStringEmailAddress)
/*
* [OPTIONAL] Designate the email addresses that will be
* BCC'd on an email as an array of Strings or a single String
*/
.addEmailBcc(arrayOfStringEmailAddresses)
.addEmailBcc(singleStringEmailAddress)
/*
* The title of the chooser that the system will show
* to allow the user to select an app
*/
.setChooserTitle(yourChooserTitle)
.startChooser();
If you have any more questions about using ShareCompat, I highly recommend this great article from Ian Lake, an Android Developer Advocate at Google, for a more complete breakdown of the API. As you'll notice, I borrowed some of this example from that article.
If that article doesn't answer all of your questions, there is always the Javadoc itself for ShareCompat.IntentBuilder on the Android Developers website. I added more to this example of the API's usage on the basis of clemantiano's comment.

This a great example about share with Intents in Android:
* Share with Intents in Android
//Share text:
Intent intent2 = new Intent(); intent2.setAction(Intent.ACTION_SEND);
intent2.setType("text/plain");
intent2.putExtra(Intent.EXTRA_TEXT, "Your text here" );
startActivity(Intent.createChooser(intent2, "Share via"));
//via Email:
Intent intent2 = new Intent();
intent2.setAction(Intent.ACTION_SEND);
intent2.setType("message/rfc822");
intent2.putExtra(Intent.EXTRA_EMAIL, new String[]{EMAIL1, EMAIL2});
intent2.putExtra(Intent.EXTRA_SUBJECT, "Email Subject");
intent2.putExtra(Intent.EXTRA_TEXT, "Your text here" );
startActivity(intent2);
//Share Files:
//Image:
boolean isPNG = (path.toLowerCase().endsWith(".png")) ? true : false;
Intent i = new Intent(Intent.ACTION_SEND);
//Set type of file
if(isPNG)
{
i.setType("image/png");//With png image file or set "image/*" type
}
else
{
i.setType("image/jpeg");
}
Uri imgUri = Uri.fromFile(new File(path));//Absolute Path of image
i.putExtra(Intent.EXTRA_STREAM, imgUri);//Uri of image
startActivity(Intent.createChooser(i, "Share via"));
break;
//APK:
File f = new File(path1);
if(f.exists())
{
Intent intent2 = new Intent();
intent2.setAction(Intent.ACTION_SEND);
intent2.setType("application/vnd.android.package-archive");//APk file type
intent2.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(f) );
startActivity(Intent.createChooser(intent2, "Share via"));
}
break;

Use below method, just pass the subject and body as arguments of the
method
public static void shareText(String subject,String body) {
Intent txtIntent = new Intent(android.content.Intent.ACTION_SEND);
txtIntent .setType("text/plain");
txtIntent .putExtra(android.content.Intent.EXTRA_SUBJECT, subject);
txtIntent .putExtra(android.content.Intent.EXTRA_TEXT, body);
startActivity(Intent.createChooser(txtIntent ,"Share"));
}

Below is the code that works with both the email or messaging app.
If you share through email then the subject and body both are added.
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
sharingIntent.setType("text/plain");
String shareString = Html.fromHtml("Medicine Name:" + medicine_name +
"<p>Store Name:" + “store_name “+ "</p>" +
"<p>Store Address:" + “store_address” + "</p>") .toString();
sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Medicine Enquiry");
sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareString);
if (sharingIntent.resolveActivity(context.getPackageManager()) != null)
context.startActivity(Intent.createChooser(sharingIntent, "Share using"));
else {
Toast.makeText(context, "No app found on your phone which can perform this action", Toast.LENGTH_SHORT).show();
}

By Creating an Intent using ACTION_SEND you will be able to put extra its type is Intent.EXTRA_TEXT, the second argument is the text you want to share.
Then by setting the share type as text/plain, the Intent service will bring you all apps that support sharing text
Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_TEXT, "This is my text to send.");
sendIntent.setType("text/plain");
Intent shareIntent = Intent.createChooser(sendIntent, null);
startActivity(shareIntent);

Images or binary data:
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
sharingIntent.setType("image/jpg");
Uri uri = Uri.fromFile(new File(getFilesDir(), "foo.jpg"));
sharingIntent.putExtra(Intent.EXTRA_STREAM, uri.toString());
startActivity(Intent.createChooser(sharingIntent, "Share image using"));
or HTML:
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
sharingIntent.setType("text/html");
sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, Html.fromHtml("<p>This is the text shared.</p>"));
startActivity(Intent.createChooser(sharingIntent,"Share using"));

Kotlin
Inside the click listener needed to add this module for sharing text via applications like whatsApp, email like Gmail, Slack..
shareOptionClicked.setOnClickListener{
val shareText = Intent(Intent.ACTION_SEND)
shareText.type = "text/plain"
val dataToShare = "Message from my application"
shareText.putExtra(Intent.EXTRA_SUBJECT, "Subject from my application")
shareText.putExtra(Intent.EXTRA_TEXT, dataToShare)
startActivity(Intent.createChooser(shareText, "Share Via"))
}

This code is for sharing through sms
String smsBody="Sms Body";
Intent sendIntent = new Intent(Intent.ACTION_VIEW);
sendIntent.putExtra("sms_body", smsBody);
sendIntent.setType("vnd.android-dir/mms-sms");
startActivity(sendIntent);

100 % Working Code For Gmail Share
Intent intent = new Intent (Intent.ACTION_SEND);
intent.setType("message/rfc822");
intent.putExtra(Intent.EXTRA_EMAIL, new String[]{"anyMail#gmail.com"});
intent.putExtra(Intent.EXTRA_SUBJECT, "Any subject if you want");
intent.setPackage("com.google.android.gm");
if (intent.resolveActivity(getPackageManager())!=null)
startActivity(intent);
else
Toast.makeText(this,"Gmail App is not installed",Toast.LENGTH_SHORT).show();

Share application "link" in Android

I want my application user to be able to share/recommend my app to other users. I use the ACTION_SEND intent. I add plain text saying something along the lines of: install this cool application. But I can't find a way to enable users to directly go to the install screen of market place for instance. All I can provide them with is a web link or some text.
In other words I am looking for a very direct way for android users to have my app installed.
Thanks for any help/pointers,
Thomas

This will let you choose from email, whatsapp or whatever.
try {
Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.setType("text/plain");
shareIntent.putExtra(Intent.EXTRA_SUBJECT, "My application name");
String shareMessage= "\nLet me recommend you this application\n\n";
shareMessage = shareMessage + "https://play.google.com/store/apps/details?id=" + BuildConfig.APPLICATION_ID +"\n\n";
shareIntent.putExtra(Intent.EXTRA_TEXT, shareMessage);
startActivity(Intent.createChooser(shareIntent, "choose one"));
} catch(Exception e) {
//e.toString();
}

You can use also ShareCompat class from support library.
ShareCompat.IntentBuilder.from(activity)
.setType("text/plain")
.setChooserTitle("Chooser title")
.setText("http://play.google.com/store/apps/details?id=" + activity.getPackageName())
.startChooser();
https://developer.android.com/reference/android/support/v4/app/ShareCompat.html

Thomas,
You would want to provide your users with a market:// link which will bring them directly to the details page of your app. The following is from developer.android.com:
Loading an application's Details page
In Android Market, every application
has a Details page that provides an
overview of the application for users.
For example, the page includes a short
description of the app and screen
shots of it in use, if supplied by the
developer, as well as feedback from
users and information about the
developer. The Details page also
includes an "Install" button that lets
the user trigger the download/purchase
of the application.
If you want to refer the user to a
specific application, your
application can take the user directly
to the application's Details page. To
do so, your application sends an
ACTION_VIEW Intent that includes a URI
and query parameter in this format:
market://details?id=
In this case, the packagename
parameter is target application's
fully qualified package name, as
declared in the package attribute of
the manifest element in the
application's manifest file. For
example:
market://details?id=com.example.android.jetboy
Source: http://developer.android.com/guide/publishing/publishing.html

Call this method:
public static void shareApp(Context context)
{
final String appPackageName = context.getPackageName();
Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_TEXT, "Check out the App at: https://play.google.com/store/apps/details?id=" + appPackageName);
sendIntent.setType("text/plain");
context.startActivity(sendIntent);
}

To be more exact
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse("https://play.google.com/store/apps/details?id=com.android.example"));
startActivity(intent);
or if you want to share your other apps from your dev. account you can do something like this
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse("https://play.google.com/store/apps/developer?id=Your_Publisher_Name"));
startActivity(intent);

To automatically fill in the application name and application id you could use this:
int applicationNameId = context.getApplicationInfo().labelRes;
final String appPackageName = context.getPackageName();
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("text/plain");
i.putExtra(Intent.EXTRA_SUBJECT, activity.getString(applicationNameId));
String text = "Install this cool application: ";
String link = "https://play.google.com/store/apps/details?id=" + appPackageName;
i.putExtra(Intent.EXTRA_TEXT, text + " " + link);
startActivity(Intent.createChooser(i, "Share link:"));

Share application with title is you app_name, content is your application link
fun shareApp(context: Context) {
val appPackageName = BuildConfig.APPLICATION_ID
val appName = context.getString(R.string.app_name)
val shareBodyText = "https://play.google.com/store/apps/details?id=$appPackageName"
val sendIntent = Intent(Intent.ACTION_SEND).apply {
type = "text/plain"
putExtra(Intent.EXTRA_TITLE, appName)
putExtra(Intent.EXTRA_TEXT, shareBodyText)
}
context.startActivity(Intent.createChooser(sendIntent, null))
}

I know this question has been answered, but I would like to share an alternate solution:
Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.setType("text/plain");
String shareSubText = "WhatsApp - The Great Chat App";
String shareBodyText = "https://play.google.com/store/apps/details?id=com.whatsapp&hl=en";
shareIntent.putExtra(Intent.EXTRA_SUBJECT, shareSubText);
shareIntent.putExtra(Intent.EXTRA_TEXT, shareBodyText);
startActivity(Intent.createChooser(shareIntent, "Share With"));

finally, this code is worked for me to open the email client from android device.
try this snippet.
Intent testIntent = new Intent(Intent.ACTION_VIEW);
Uri data = Uri.parse("mailto:?subject=" + "Feedback" + "&body=" + "Write Feedback here....." + "&to=" + "someone#example.com");
testIntent.setData(data);
startActivity(testIntent);

Kotlin extension for share action. You can share whatever you want e.g. link
fun Context.share(text: String) =
this.startActivity(Intent().apply {
action = Intent.ACTION_SEND
putExtra(Intent.EXTRA_TEXT, text)
type = "text/plain"
})
Usage
context.share("Check https://stackoverflow.com")

According to official docs in 2021 preferred way is
fun shareTextToOtherApps(message: String) {
val sendIntent: Intent = Intent().apply {
action = Intent.ACTION_SEND
putExtra(Intent.EXTRA_TEXT, message)
type = "text/plain"
}
val shareIntent = Intent.createChooser(sendIntent, null)
startActivity(shareIntent)
}

Actually the best way to sheared you app between users , google (firebase) proved new technology Firebase Dynamic Link Through several lines you can make it
this is documentation
https://firebase.google.com/docs/dynamic-links/
and the code is
Uri dynamicLinkUri = dynamicLink.getUri();
Task<ShortDynamicLink> shortLinkTask = FirebaseDynamicLinks.getInstance().createDynamicLink()
.setLink(Uri.parse("https://www.google.jo/"))
.setDynamicLinkDomain("rw4r7.app.goo.gl")
.buildShortDynamicLink()
.addOnCompleteListener(this, new OnCompleteListener<ShortDynamicLink>() {
#Override
public void onComplete(#NonNull Task<ShortDynamicLink> task) {
if (task.isSuccessful()) {
// Short link created
Uri shortLink = task.getResult().getShortLink();
Uri flowchartLink = task.getResult().getPreviewLink();
Intent intent = new Intent();
intent.setAction(Intent.ACTION_SEND);
intent.putExtra(Intent.EXTRA_TEXT, shortLink.toString());
intent.setType("text/plain");
startActivity(intent);
} else {
// Error
// ...
}
}
});

try {
Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.setType("text/plain");
shareIntent.putExtra(Intent.EXTRA_SUBJECT, "Your Application name");
String shareMessage= "\n Your Message \n\n";
shareMessage = shareMessage + "https://play.google.com/store/apps/details?id=" + BuildConfig.APPLICATION_ID +"\n\n";
shareIntent.putExtra(Intent.EXTRA_TEXT, shareMessage);
startActivity(Intent.createChooser(shareIntent, "choose one"));
} catch(Exception e) {
//e.toString();
}

#Linh answer is almost good but causing a crash because of the missing FLAG_ACTIVITY_NEW_TASK, here is what worked for me
public static void shareApp(Context context) {
final String appPackageName = context.getPackageName();
Intent sendIntent = new Intent();
sendIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_TEXT, "Check out the App at: https://play.google.com/store/apps/details?id=" + appPackageName);
sendIntent.setType("text/plain");
context.startActivity(sendIntent);
}