Android: How To Send Message Programmatically By Using WhatsApp, WeChat?

Answer :

I got the Solution.. Here I am posting the answer so that it may help other people who may have same doubt..

For Share through any application...

public void sendAppMsg(View view) {      Intent intent = new Intent(Intent.ACTION_SEND);     intent.setType("text/plain");     String text = " message you want to share..";     // change with required  application package        intent.setPackage("PACKAGE NAME OF THE APPLICATION");     if (intent != null) {         intent.putExtra(Intent.EXTRA_TEXT, text);//         startActivity(Intent.createChooser(intent, text));     } else {          Toast.makeText(this, "App not found", Toast.LENGTH_SHORT)                 .show();     } } 

Note : change *PACKAGE NAME OF THE APPLICATION as per your requirement like

Example : USE

//Whatsapp     intent.setPackage("com.whatsapp");`  //Linkedin     intent.setPackage("com.linkedin.android");  //Twitter         intent.setPackage("com.twitter.android");  //Facebook     intent.setPackage("com.facebook.katana");  //GooglePlus     intent.setPackage("com.google.android.apps.plus"); 

This should help to send message using whatsapp:

public void sendWhatsAppMsg() {      Intent waIntent = new Intent(Intent.ACTION_SEND);     waIntent.setType("text/plain");             String text = "testing message";     waIntent.setPackage("com.whatsapp");     if (waIntent != null) {         waIntent.putExtra(Intent.EXTRA_TEXT, text);//         startActivity(Intent.createChooser(waIntent, text));     } else {         Toast.makeText(this, "WhatsApp not found", Toast.LENGTH_SHORT)                 .show();     }  } 

To send direct message to any whatsapp user use following code :

private void sendMessageToWhatsAppContact(String number) {     PackageManager packageManager = context.getPackageManager();     Intent i = new Intent(Intent.ACTION_VIEW);     try {         String url = "https://api.whatsapp.com/send?phone=" + number + "&text=" + URLEncoder.encode(CommonStrings.SHARING_APP_MSG, "UTF-8");         i.setPackage("com.whatsapp");         i.setData(Uri.parse(url));         if (i.resolveActivity(packageManager) != null) {             context.startActivity(i);         }     } catch (Exception e) {         e.printStackTrace();     } }