用GoogleApiClient实现短信自动验证

implementation 'com.google.android.gms:play-services-auth:19.2.0'

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

private GoogleApiClient mGoogleApiClient;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    // ...
    mGoogleApiClient = new GoogleApiClient.Builder(this)
            .addApi(Auth.CREDENTIALS_API)
            .build();
    mGoogleApiClient.connect();
}

private void sendVerificationCode(String phoneNumber) {
    HintRequest hintRequest = new HintRequest.Builder()
            .setPhoneNumberIdentifierSupported(true)
            .build();

    PendingIntent intent = Auth.CredentialsApi.getHintPickerIntent(mGoogleApiClient, hintRequest);
    try {
        startIntentSenderForResult(intent.getIntentSender(), REQUEST_CODE, null, 0, 0, 0);
    } catch (IntentSender.SendIntentException e) {
        e.printStackTrace();
    }
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == REQUEST_CODE && resultCode == RESULT_OK) {
        Credential credential = data.getParcelableExtra(Credential.EXTRA_KEY);
        String phoneNumber = credential.getId(); // 获取用户选择的手机号码
        // 进行短信验证操作
    }
}