Mobile app: how to show the OTP my app sends in a popup without leaving my app?
Solution 1
Here is step by step description to achieve your requirement
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Declare receiver in AndroidManifest
<receiver android:name=".IncomingSms"> <intent-filter> <action android:name="android.provider.Telephony.SMS_RECEIVED" /> </intent-filter> </receiver>
2 Give read SMS permission in AndroidManifest
<uses-permission android:name="android.permission.RECEIVE_SMS"></uses-permission> <uses-permission android:name="android.permission.READ_SMS" />
Complete code for AndroidManifest.xml File :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.androidexample.broadcastreceiver"
android:versionCode="1"
android:versionName="1.0" >
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.androidexample.broadcastreceiver.BroadcastNewSms"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="com.androidexample.broadcastreceiver.IncomingSms">
<intent-filter>
<action android:name="android.provider.Telephony.SMS_RECEIVED" />
</intent-filter>
</receiver>
</application>
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.RECEIVE_SMS"></uses-permission>
<uses-permission android:name="android.permission.READ_SMS" />
</manifest>
Complete code for IncomingSms.java file :
public class IncomingSms extends BroadcastReceiver {
// Get the object of SmsManager
final SmsManager sms = SmsManager.getDefault();
public void onReceive(Context context, Intent intent) {
// Retrieves a map of extended data from the intent.
final Bundle bundle = intent.getExtras();
try {
if (bundle != null) {
final Object[] pdusObj = (Object[]) bundle.get("pdus");
for (int i = 0; i < pdusObj.length; i++) {
SmsMessage currentMessage = SmsMessage.createFromPdu((byte[]) pdusObj[i]);
String phoneNumber = currentMessage.getDisplayOriginatingAddress();
String senderNum = phoneNumber;
String message = currentMessage.getDisplayMessageBody();
Log.i("SmsReceiver", "senderNum: "+ senderNum + "; message: " + message);
// Show Alert
int duration = Toast.LENGTH_LONG;
Toast toast = Toast.makeText(context,
"senderNum: "+ senderNum + ", message: " + message, duration);
toast.show();
} // end for loop
} // bundle is null
} catch (Exception e) {
Log.e("SmsReceiver", "Exception smsReceiver" +e);
}
}
}
register above broadcast receiver in your activity and you will get your output
Solution 2
For android you need to use SMSListener as pointed out by @rushabh. You can check at a great example here
Solution 3
Some Tips to achieve your mention task for your App.
Step - 1 create a Login Activity with necessary field like username , password and otp and Login Button.
Step - 2 When user fill the username and password make a web service call. with input params (username and password)
authenticate the values if true means send your OTP number as response else response error message.
Step -3 if response is number means create AlertBuilder for Pop window to show your OTP number in same Activity.
Step - 4 user saw the OTP in Login Activity itself and enters the OTP in opt area i.e (EditText).
Step - 5 When user tap the login Button authenticate the OTP value. and proceed to next Activity.
PKHunter
Updated on July 07, 2022Comments
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PKHunter almost 2 years
We've had to code an OTP based authentication. I have seen some apps, like my bank's app, which when it sends the OTP also then immediately does a quick popup of the SMS that has just arrived, so I can see the OTP without leaving the app. I just memorize the number, close the popup, and get on with the login inside that app.
How do they do that? Is there some iOS/Android spec I should be looking at, which allows us to similarly popup the OTP without the user having to go to the SMS screen, then come back to our app? Thanks!
EDIT: I have very useful Android suggestions. Now looking for iOS variations of these recommendations. Understand iOS has much more stringent sandboxing limitations, so the "listener" may be more complex?