SMS Handling

On Mobile Devices, there will be the time where you will need to handle incoming SMS message for various of reasons exampled below:

• Auto-filling the SMS verification code
• Streaming the SMS messages to your app ( Android only )
• Creating a built-in SMS reader ( Android only )

caution

Apple doesn't allow any 3rd party software to read the SMS messages from any Apple device.

Handle incoming SMS on Android

To read the SMS contents of your phone, refer to SMS Receiver. Since Android doesn't support out of the box 2FA handling, developers should implement their own views to handle SMS autofill.

import SMSReceiver from '@smartface/native/device/smsreceiver';
import { PermissionResult, Permissions } from '@smartface/native/device/permission/permission';
   
Permission.android.requestPermissions(Permissions.ANDROID.RECEIVE_SMS).then((e) => {
      const result = e[0];
      if (result === PermissionResult.GRANTED) {
        SMSReceiver.registerReceiver();
        SMSReceiver.callback = (e) => {
          console.info(e);
          alert('SMS IS RECEIVED');
          SMSReceiver.unRegisterReceiver();
        };
      }
});

Handle incoming SMS on iOS

As hinted above, there is no supported way to read the contents directly on an iOS. However, starting with iOS 12, it is possible to get verification code sent to iMessage on your application.

danger

It is not possible to get SMS content of an iPhone using iOS 11 or below.

By default, Smartface TextBoxes or MaterialTextBoxes may receive OTP without any configuration. However, it is strongly advised to include textContentType to your code.

Refer to TextContentType API

import TextContentType from "@smartface/native/ui/textcontenttype";
import System from "@smartface/native/device/system";

function initTextBox() {
  if (System.OS === System.OSType.ANDROID) {
    return;
  }
  //TextBox
  this.textBox1.ios.textContentType = TextContentType.ONETIMECODE;

  //MaterialTextBox
  this.mtbLogin.materialTextBox.ios.textContentType =
    TextContentType.ONETIMECODE;
}

caution

The OTP will only be shown if the textbox field is empty.

If you are the SMS provider for the app, refer to this article by Apple to get a gist of how to format your SMS messages for Apple devices to detect.

Android Emulator

Some native features might require specific permissions and published app to work on Smartface due to Smartface Android Emulator itself not having necessary permissions.

List of permissions disabled by the emulator:

• android.permission.READ_SMS

• android.permission.SEND_SMS

• android.permission.RECEIVE_SMS

• android.permission.RECEIVE_MMS

You can add this permission to your AndroidManifest.xml file to enable the feature on your published app.