Learn how you can send & receive SMS through Android

0
1372

This example shows how you can send/receive SMS through your application.

Algorithm:

1.) Create a new project by File-> New -> Android Project name it SMSSenderExample.

2.) Write following into main.xml:


<ScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="6dip">
        <CheckBox
            android:id="@+id/sms_enable_receiver"
            android:text="@string/sms_enable_receiver"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
        <TableLayout
            android:padding="6dip"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:stretchColumns="1">
            <TableRow android:layout_width="match_parent">
                <TextView android:text="@string/sms_recipient_label" />
                <EditText android:id="@+id/sms_recipient" />
            </TableRow>
            <TableRow>
                <TextView android:text="@string/sms_content_label" />
                <EditText android:id="@+id/sms_content" />
            </TableRow>
            <TableRow>
                <Button
                    android:id="@+id/sms_send_message"
                    android:text="@string/sms_send_message"
                    android:layout_column="1" />
            </TableRow>
            <TableRow>
                <TextView
                    android:id="@+id/sms_status"
                    android:layout_column="1" />
            </TableRow>
        </TableLayout>
    </LinearLayout>
</ScrollView>

3.) Create and write following into src/SmsMessageReceiver.java:

package com.example.smssenderexample;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.telephony.SmsMessage;

public class SmsMessageReceiver extends BroadcastReceiver {
    private static final String TAG = "SmsMessageReceiver";

    @Override
    public void onReceive(Context context, Intent intent) {
        Bundle extras = intent.getExtras();
        if (extras == null)
            return;

        Object[] pdus = (Object[]) extras.get("pdus");

        for (int i = 0; i < pdus.length; i++) {
            SmsMessage message = SmsMessage.createFromPdu((byte[]) pdus[i]);
            String fromAddress = message.getOriginatingAddress();
            String fromDisplayName = fromAddress;

            Uri uri;
            String[] projection;

            uri = Uri.withAppendedPath(
                    ContactsContract.PhoneLookup.CONTENT_FILTER_URI,
                    Uri.encode(fromAddress));
            projection = new String[] { ContactsContract.PhoneLookup.DISPLAY_NAME };

            // Query the filter URI
            Cursor cursor = context.getContentResolver().query(uri, projection, null, null, null);
            if (cursor != null) {
                if (cursor.moveToFirst())
                    fromDisplayName = cursor.getString(0);

                cursor.close();
            }

            Intent di = new Intent();
            di.setClass(context, SmsReceivedDialog.class);
            di.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP);
            di.putExtra(SmsReceivedDialog.SMS_FROM_ADDRESS_EXTRA, fromAddress);
            di.putExtra(SmsReceivedDialog.SMS_FROM_DISPLAY_NAME_EXTRA, fromDisplayName);
            di.putExtra(SmsReceivedDialog.SMS_MESSAGE_EXTRA, message.getMessageBody().toString());
            context.startActivity(di);
            break;
        }
    }
}

4.) Create and write following into src/SmsReceivedDialog.java:

package com.example.smssenderexample;

import java.util.Locale;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.speech.tts.TextToSpeech;
import android.speech.tts.TextToSpeech.OnInitListener;
import android.util.Log;

public class SmsReceivedDialog extends Activity implements OnInitListener {
    private static final String TAG = "SmsReceivedDialog";

    private static final int DIALOG_SHOW_MESSAGE = 1;

    public static final String SMS_FROM_ADDRESS_EXTRA = "com.example.android.apis.os.SMS_FROM_ADDRESS";
    public static final String SMS_FROM_DISPLAY_NAME_EXTRA = "com.example.android.apis.os.SMS_FROM_DISPLAY_NAME";
    public static final String SMS_MESSAGE_EXTRA = "com.example.android.apis.os.SMS_MESSAGE";

    private TextToSpeech mTts;

    private String mFromDisplayName;
    private String mFromAddress;
    private String mMessage;
    private String mFullBodyString;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        mFromAddress = getIntent().getExtras().getString(SMS_FROM_ADDRESS_EXTRA);
        mFromDisplayName = getIntent().getExtras().getString(SMS_FROM_DISPLAY_NAME_EXTRA);
        mMessage = getIntent().getExtras().getString(SMS_MESSAGE_EXTRA);

        mFullBodyString = String.format(
                getResources().getString(R.string.sms_speak_string_format),
                mFromDisplayName,
                mMessage);

        showDialog(DIALOG_SHOW_MESSAGE);
        mTts = new TextToSpeech(this, this);
    }

    public void onInit(int status) {
        if (status == TextToSpeech.SUCCESS) {
            int result = mTts.setLanguage(Locale.US);
            if (result == TextToSpeech.LANG_MISSING_DATA
                    || result == TextToSpeech.LANG_NOT_SUPPORTED) {
                Log.e(TAG, "TTS language is not available.");
            } else {
                mTts.speak(mFullBodyString, TextToSpeech.QUEUE_ADD, null);
            }
        } else {
            // Initialization failed.
            Log.e(TAG, "Could not initialize TTS.");
        }
    }

    @Override
    protected Dialog onCreateDialog(int id) {
        switch (id) {
        case DIALOG_SHOW_MESSAGE:
            return new AlertDialog.Builder(this)
                    .setIcon(android.R.drawable.ic_dialog_email)
                    .setTitle("Message Received")
                    .setMessage(mFullBodyString)
                    .setPositiveButton(R.string.reply, new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int whichButton) {
                            // Begin creating the reply with the SmsMessagingDemo activity
                            Intent i = new Intent();
                            i.setClass(SmsReceivedDialog.this, SMSSenderExample.class);
                            i.putExtra(SMSSenderExample.SMS_RECIPIENT_EXTRA, mFromAddress);
                            startActivity(i);

                            dialog.dismiss();
                            finish();
                        }
                    })
                    .setNegativeButton(R.string.dismiss, new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int whichButton) {
                            dialog.dismiss();
                            finish();
                        }
                    })
                    .setOnCancelListener(new DialogInterface.OnCancelListener() {
                        public void onCancel(DialogInterface dialog) {
                            finish();
                        }
                    }).create();
        }
        return null;
    }
}

5.) Write following into res/values/strings.xml:

<resources>

    <string name="app_name">SMSSenderExample</string>
    <string name="hello_world">Hello world!</string>
    <string name="menu_settings">Settings</string>
    <string name="title_activity_smssender_example">SMSSenderExample</string>
	    <string name="sms_enable_receiver">Enable SMS broadcast receiver</string>
    <string name="sms_recipient_label">Recipient #</string>
    <string name="sms_content_label">Message Body</string>
    <string name="sms_send_message">Send</string>
    <string name="sms_speak_string_format">Message from "%1$s": %2$s</string>
    <string name="reply">Reply</string>
    <string name="dismiss">Dismiss</string>

    <string name="share">Share</string>
    
</resources>

6.) Add following 2 permissions into your manifest file:

<uses-permission android:name="android.permission.SEND_SMS" />
    <uses-permission android:name="android.permission.RECEIVE_SMS" />

7.) Run for output.

Steps:

1.) Create a project named SMSSenderExample and set the information as stated in the image.

Build Target: Android 4.0
Application Name: SMSSenderExample
Package Name: com. example. SMSSenderExample
Activity Name: SMSSenderExample
Min SDK Version: 8

2.) Open SMSSenderExample.java file and write following code there:

package com.example.smssenderexample;
import java.util.List;
import android.app.Activity;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.graphics.Color;
import android.os.Bundle;
import android.telephony.gsm.SmsManager;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class SMSSenderExample extends Activity {
    /** Tag string for our debug logs */
    private static final String TAG = "SmsMessagingDemo";

    public static final String SMS_RECIPIENT_EXTRA = "com.example.android.apis.os.SMS_RECIPIENT";

    public static final String ACTION_SMS_SENT = "com.example.android.apis.os.SMS_SENT_ACTION";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        if (getIntent().hasExtra(SMS_RECIPIENT_EXTRA)) {
            ((TextView) findViewById(R.id.sms_recipient)).setText(getIntent().getExtras()
                    .getString(SMS_RECIPIENT_EXTRA));
            ((TextView) findViewById(R.id.sms_content)).requestFocus();
        }

        // Enable or disable the broadcast receiver depending on the checked
        // state of the checkbox.
        CheckBox enableCheckBox = (CheckBox) findViewById(R.id.sms_enable_receiver);

        final PackageManager pm = this.getPackageManager();
        final ComponentName componentName = new ComponentName("com.example.android.apis",
                "com.example.android.apis.os.SmsMessageReceiver");

        enableCheckBox.setChecked(pm.getComponentEnabledSetting(componentName) ==
                                  PackageManager.COMPONENT_ENABLED_STATE_ENABLED);

        enableCheckBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                Log.d(TAG, (isChecked ? "Enabling" : "Disabling") + " SMS receiver");

                pm.setComponentEnabledSetting(componentName,
                        isChecked ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
                                : PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
                        PackageManager.DONT_KILL_APP);
            }
        });

        final EditText recipientTextEdit = (EditText) SMSSenderExample.this
                .findViewById(R.id.sms_recipient);
        final EditText contentTextEdit = (EditText) SMSSenderExample.this
                .findViewById(R.id.sms_content);
        final TextView statusView = (TextView) SMSSenderExample.this.findViewById(R.id.sms_status);

        // Watch for send button clicks and send text messages.
        Button sendButton = (Button) findViewById(R.id.sms_send_message);
        sendButton.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                if (TextUtils.isEmpty(recipientTextEdit.getText())) {
                    Toast.makeText(SMSSenderExample.this, "Please enter a message recipient.",
                            Toast.LENGTH_SHORT).show();
                    return;
                }

                if (TextUtils.isEmpty(contentTextEdit.getText())) {
                    Toast.makeText(SMSSenderExample.this, "Please enter a message body.",
                            Toast.LENGTH_SHORT).show();
                    return;
                }

                recipientTextEdit.setEnabled(false);
                contentTextEdit.setEnabled(false);

                SmsManager sms = SmsManager.getDefault();

                List<String> messages = sms.divideMessage(contentTextEdit.getText().toString());

                String recipient = recipientTextEdit.getText().toString();
                for (String message : messages) {
                    sms.sendTextMessage(recipient, null, message, PendingIntent.getBroadcast(
                    		SMSSenderExample.this, 0, new Intent(ACTION_SMS_SENT), 0), null);
                }
            }
        });

        // Register broadcast receivers for SMS sent and delivered intents
        registerReceiver(new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                String message = null;
                boolean error = true;
                switch (getResultCode()) {
                case Activity.RESULT_OK:
                    message = "Message sent!";
                    error = false;
                    break;
                case SmsManager.RESULT_ERROR_GENERIC_FAILURE:
                    message = "Error.";
                    break;
                case SmsManager.RESULT_ERROR_NO_SERVICE:
                    message = "Error: No service.";
                    break;
                case SmsManager.RESULT_ERROR_NULL_PDU:
                    message = "Error: Null PDU.";
                    break;
                case SmsManager.RESULT_ERROR_RADIO_OFF:
                    message = "Error: Radio off.";
                    break;
                }

                recipientTextEdit.setEnabled(true);
                contentTextEdit.setEnabled(true);
                contentTextEdit.setText("");

                statusView.setText(message);
                statusView.setTextColor(error ? Color.RED : Color.GREEN);
            }
        }, new IntentFilter(ACTION_SMS_SENT));
    }
}

3.) Compile and build the project.

Output