phone selector api in android

Here is what i did to get Number:

Note: I'm getting numbers inside Fragment.

1) get GoogleApiClient

private void getCreadenticalApiClient() {
        mCredentialsApiClient = new GoogleApiClient.Builder(getBaseContext())
                .addConnectionCallbacks(this)
                .enableAutoManage(getBaseContext(), this)
                .addApi(Auth.CREDENTIALS_API)
                .build();
    }

2) showHint method will show to popup with number:

private void showHint() {
        HintRequest hintRequest = new HintRequest.Builder()
                .setHintPickerConfig(new CredentialPickerConfig.Builder()
                        .setShowCancelButton(true)
                        .build())
                .setPhoneNumberIdentifierSupported(true)
                .build();

        PendingIntent intent =
                Auth.CredentialsApi.getHintPickerIntent(mCredentialsApiClient, hintRequest);
        try {
            startIntentSenderForResult(intent.getIntentSender(), RC_HINT, null, 0, 0, 0,new Bundle());
        } catch (IntentSender.SendIntentException e) {
            Log.e("Login", "Could not start hint picker Intent", e);
        }
    }

3) And this is where you assign number to View

@Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == RC_HINT) {
            if (resultCode == RESULT_OK) {
                Credential cred = data.getParcelableExtra(Credential.EXTRA_KEY);
                etMobile.setText(cred.getId().substring(3));
            }
        }
    }

At last do not forget to implement these two interfaces inside fragment:

GoogleApiClient.ConnectionCallbacks
GoogleApiClient.OnConnectionFailedListener

dependencies:

    implementation 'com.google.android.gms:play-services-base:11.8.0'
    implementation 'com.google.android.gms:play-services-identity:11.8.0'
    implementation 'com.google.android.gms:play-services-auth:11.8.0'
    implementation 'com.google.android.gms:play-services-auth-api-phone:11.8.0'

I got success to get the mobile number by using mobile selector api with hint request for you need to add some following dependency in app level gradle

implementation 'com.google.android.gms:play-services-auth:17.0.0'
implementation 'com.google.android.gms:play-services-identity:17.0.0'
implementation 'com.google.android.gms:play-services-auth-api-phone:17.1.0'

After that you have to implement your activity with googleAiClient like following

 public class MainActivity extends AppCompatActivity implements GoogleApiClient.ConnectionCallbacks,
 GoogleApiClient.OnConnectionFailedListener{{

after that put request and manage it in onActivityForresult like folowing

GoogleApiClient googleApiClient = new GoogleApiClient.Builder(this)
                .addApi(Auth.CREDENTIALS_API)
                .addConnectionCallbacks((GoogleApiClient.ConnectionCallbacks) MainActivity.this)
                .addOnConnectionFailedListener((GoogleApiClient.OnConnectionFailedListener) MainActivity.this)
                .build();
        googleApiClient.connect();
        HintRequest hintRequest = new HintRequest.Builder()
                .setPhoneNumberIdentifierSupported(true)
                .build();
        PendingIntent intent = Auth.CredentialsApi.getHintPickerIntent(googleApiClient, hintRequest);
        try {
            startIntentSenderForResult(intent.getIntentSender(),
                    RESOLVE_HINT, null, 0, 0, 0);
        } catch (IntentSender.SendIntentException e) {
            e.printStackTrace();
        }

And handle it like folowwing

@Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == RESOLVE_HINT) {
            if (resultCode == RESULT_OK) {
                com.google.android.gms.auth.api.credentials.Credential credential = data.getParcelableExtra(Credential.EXTRA_KEY);
                if (credential != null) {

                    mobNumber = credential.getId();
                    String newString = mobNumber.replace("+91", "");
                    Toast.makeText(this, "" + newString, Toast.LENGTH_SHORT).show();

                } else {
                    Toast.makeText(this, "err", Toast.LENGTH_SHORT).show();
                }
            }
        }
    }

for more visit phone Slector Api

The GoogleApiClient is now deprecated, please follow the following steps, to implement the same.

To remove the deprecated GoogleApiClient, replace your intent with the following:

// Kotlin
val intent = Credentials.getClient(this).getHintPickerIntent(hintRequest)

// Java
PendingIntent intent = Credentials.getClient(this).getHintPickerIntent(hintRequest);

Credentials is found in this package: com.google.android.gms.auth.api.credentials.Credentials.

Full working example which calls buttonClicked when a button is pressed:

// Kotlin

import android.app.Activity
import android.content.Intent
import android.os.Bundle
import android.view.View
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import com.google.android.gms.auth.api.credentials.Credential
import com.google.android.gms.auth.api.credentials.Credentials
import com.google.android.gms.auth.api.credentials.CredentialsApi
import com.google.android.gms.auth.api.credentials.HintRequest

class MyActivity : AppCompatActivity() {

    // ... onCreate Functions, etc

    // Arbitrary number to identify the request for crednetials
    private val iRequestCodePhoneNumber = 100

    // Button click listener
    fun buttonClicked(@Suppress("UNUSED_PARAMETER") view: View) {
        val hintRequest = HintRequest.Builder()
            .setPhoneNumberIdentifierSupported(true)
            .build()

        val intent = Credentials.getClient(this).getHintPickerIntent(hintRequest)

        startIntentSenderForResult(
            intent.intentSender,
            iRequestCodePhoneNumber, null, 0, 0, 0
        )
    }

    // Parse the result of the HintPicker (i.e., get the selected phone number)
    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)
        // resultCode:
        //   Activity.RESULT_OK (-1) = number selected
        //   Activity.RESULT_CANCELED (0) = user touched outside the HintPicker (do nothing)
        //   CredentialsApi.ACTIVITY_RESULT_OTHER_ACCOUNT (1001) = "None of the above" (do nothing; treat as same use case as 'Cancelling')
        //   CredentialsApi.ACTIVITY_RESULT_NO_HINTS_AVAILABLE (1002) = no numbers found, probably no SIM card
        if (requestCode == iRequestCodePhoneNumber && resultCode == Activity.RESULT_OK) {
            val credential: Credential? = data?.getParcelableExtra(Credential.EXTRA_KEY)
            val phoneNumber = credential?.id

            // *** Do something with the phone number here ***

        } else if (
            requestCode == iRequestCodePhoneNumber &&
            resultCode == CredentialsApi.ACTIVITY_RESULT_NO_HINTS_AVAILABLE
        ) {
            // *** No phone numbers available ***
            Toast.makeText(this, "No phone numbers found", Toast.LENGTH_LONG).show()
        }
    }
}

Follow this question for more clarity: How to use GoogleAPIClient (deprecated) with SMSRetriver API in Android

Credit to: Christopher Bull