Develop Reference

How to send sms from android app to mobile?

I have tried this code but I did not receive SMS in my phone.
Intent intent=new Intent(getApplicationContext(),MainActivity.class);
PendingIntent pi=PendingIntent.getActivity(getApplicationContext(), 0, intent,0);
//Get the SmsManager instance and call the sendTextMessage method to send message
SmsManager sms=SmsManager.getDefault();
sms.sendTextMessage("88xxxxxxx0", null, "hello javatpoint", pi,null);

You can send message from your application through this:
public void sendSMS(String MoNo, String msg) {
try {
SmsManager smsManager = SmsManager.getDefault();
smsManager.sendTextMessage(MoNo, null, msg, null, null);
Toast.makeText(getApplicationContext(), "Message Sent",
Toast.LENGTH_LONG).show();
} catch (Exception ex) {
Toast.makeText(getApplicationContext(),ex.getMessage().toString(),
Toast.LENGTH_LONG).show();
ex.printStackTrace();
}
}
Also you need to give SEND_SMS permission in AndroidManifest.xml to send message
<uses-permission android:name="android.permission.SEND_SMS" />
Thanks. Happy Coding...

Any way to send text message without getting a confirmation?

Is there any way to send a text message without getting a confirmation? My current code for this is:
String phoneNumber = "1234567";
Intent intent = new Intent(Intent.ACTION_SENDTO);
intent.setData(Uri.parse("smsto:" + phoneNumber)); // This ensures only SMS apps respond
intent.putExtra("sms_body", "TESTING TEXT MESSAGE! IT WORKS!");
if (intent.resolveActivity(getPackageManager()) != null) {
startActivity(intent);
}

Yes you should use SmsManager. Here is an example:
SmsManager smsManager = SmsManager.getDefault();
smsManager.sendTextMessage("phoneNo", null, "sms message", null, null);

Sending SMS programmatically without opening message app

So far I am using the following code to send SMS to another phone through my app.
Intent intent = new Intent( Intent.ACTION_VIEW, Uri.parse( "sms:" + srcNumber));
intent.putExtra( "sms_body", message );
startActivity(intent);
However, this opens up the native messaging app, thereby putting my app's activity in the background. Is it possible to send the SMS directly without the native messaging app opening up? If yes, how?

You can send messages from your application through this:
public void sendSMS(String phoneNo, String msg) {
try {
SmsManager smsManager = SmsManager.getDefault();
smsManager.sendTextMessage(phoneNo, null, msg, null, null);
Toast.makeText(getApplicationContext(), "Message Sent",
Toast.LENGTH_LONG).show();
} catch (Exception ex) {
Toast.makeText(getApplicationContext(),ex.getMessage().toString(),
Toast.LENGTH_LONG).show();
ex.printStackTrace();
}
}
Also, you need to give SEND_SMS permission in AndroidManifest.xml to send a message
<uses-permission android:name="android.permission.SEND_SMS" />

public void sendLongSMS() {
String phoneNumber = "0123456789";
String message = "Hello World! Now we are going to demonstrate " +
"how to send a message with more than 160 characters from your Android application.";
SmsManager smsManager = SmsManager.getDefault();
ArrayList<String> parts = smsManager.divideMessage(message);
smsManager.sendMultipartTextMessage(phoneNumber, null, parts, null, null);
}
and don't forget to add
<uses-permission android:name="android.permission.SEND_SMS"/>

Sending sms with permission request :
Add In manifest :
<uses-permission android:name="android.permission.SEND_SMS" />
Add Java Function :
void sendSmsMsgFnc(String mblNumVar, String smsMsgVar)
{
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.SEND_SMS) == PackageManager.PERMISSION_GRANTED)
{
try
{
SmsManager smsMgrVar = SmsManager.getDefault();
smsMgrVar.sendTextMessage(mblNumVar, null, smsMsgVar, null, null);
Toast.makeText(getApplicationContext(), "Message Sent",
Toast.LENGTH_LONG).show();
}
catch (Exception ErrVar)
{
Toast.makeText(getApplicationContext(),ErrVar.getMessage().toString(),
Toast.LENGTH_LONG).show();
ErrVar.printStackTrace();
}
}
else
{
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
{
requestPermissions(new String[]{Manifest.permission.SEND_SMS}, 10);
}
}
}

Yes, found the answer to my own question :)
Use the following code for the same :
SmsManager sms = SmsManager.getDefault();
sms.sendTextMessage(srcNumber, null, message, null, null);
This requires the following permission to be declared on the android manifest xml.
<uses-permission android:name="android.permission.SEND_SMS"/>

SmsManager smsManager = SmsManager.getDefault();
smsManager.sendTextMessage(phoneNo, null, sms, null, null);

Android: send immediate SMS

I'm trying to write an app that sends SMS messages.
To do this, I use the following code:
Intent smsIntent = new Intent(Intent.ACTION_SENDTO);
smsIntent.setData(Uri.parse("sms:" + number));
smsIntent.putExtra("sms_body", message);
smsIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(smsIntent);
The problem is: when I run it, it shows me a dialog and I need to choose with which app I want to send the message (WhatsApp/Hangouts/Messaging/etc.) and when I choose "Messaging", it only prepares the message and waits for me to press "send".
How can I send the message immediately through "Messaging" (without the dialog and without waiting until "send" is pressed)?

try to use SmsManager API
String phoneNo = "123456";
String msg= "Hello";
buttonSend.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
try {
// send the message
SmsManager smsManager = SmsManager.getDefault();
smsManager.sendTextMessage(phoneNo, null, msg, null, null);
} catch (Exception e) {
e.printStackTrace();
}
}
});
add this to your manifest :
<uses-permission android:name="android.permission.SEND_SMS" />

SmsManager displays alert prior to send SMS

I am really confused regarding one issue. Precisely, I'm sending a SMS to a number (fetched from web-service) each time application is opened. Code Snippet is as :
private void sendSMSToDevices() {
try {
String SENT = "SentSMSActivity";
String DELIVERED = "ReceivedSMSActivity";
PendingIntent sentPI = PendingIntent.getBroadcast(context, 0, new Intent(SENT), 0);
PendingIntent deliveredPI = PendingIntent.getBroadcast(context, 0, new Intent(DELIVERED), 0);
SmsManager smsManager = SmsManager.getDefault();
if (flagFirstTime) {
smsManager.sendTextMessage(phone_one, null, message_one, sentPI, deliveredPI);
} else {
smsManager.sendTextMessage(phone_two, null, message_two, sentPI, deliveredPI);
}
// Toast.makeText(getApplicationContext(), "SMS Sent!",
// Toast.LENGTH_LONG).show();
} catch (Exception e) {
Toast.makeText(getApplicationContext(), "SMS faild, please try again later!", Toast.LENGTH_LONG).show();
e.printStackTrace();
}
}
uses permissions in Manifest file are as ::
android.permission.SEND_SMS
android.permission.ACCESS_NETWORK_STATE
android.permission.INTERNET
android.permission.RECEIVE_BOOT_COMPLETED
Each time I open the app, it dispays an alert prior to send SMS saying "(my_App_Name) would like to send a message to (phone_nember)"
I never put any alert inside my code. Why is it happening like this? Please Help.