Boa tarde a todos,
Estou realizando uma integração da API do google pay, basicamente trabalho com duas classes(MainActivity e GooglePay.java) e estou com alguns problemas na classe principal, mais especificamente no método "possiblyShowGooglePayButton" e "onActivityResult", no qual enfrento problema de NullPointer e erros na conversão de Objetos JSON.
package com.example.testeapi;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import com.google.android.gms.common.api.ApiException;
import com.google.android.gms.common.api.Status;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.android.gms.wallet.AutoResolveHelper;
import com.google.android.gms.wallet.IsReadyToPayRequest;
import com.google.android.gms.wallet.PaymentData;
import com.google.android.gms.wallet.PaymentDataRequest;
import com.google.android.gms.wallet.PaymentsClient;
import com.google.android.gms.wallet.Wallet;
import com.google.android.gms.wallet.WalletConstants;
import org.json.JSONObject;
import java.util.Optional;
public class MainActivity extends AppCompatActivity {
public PaymentsClient mPaymentsClient;
private View mGooglePayButton;
private static final int LOAD_PAYMENT_DATA_REQUEST_CODE = 42;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mPaymentsClient =
Wallet.getPaymentsClient(
this,
new Wallet.WalletOptions.Builder()
.setEnvironment(WalletConstants.ENVIRONMENT_TEST)
.build());
possiblyShowGooglePayButton();
}
private void possiblyShowGooglePayButton() {
final Optional<JSONObject> isReadyToPayJson = GooglePay.getIsReadyToPayRequest();
if (!isReadyToPayJson.isPresent()) {
return;
}
IsReadyToPayRequest request = IsReadyToPayRequest.fromJson(isReadyToPayJson.get().toString());
if (request == null) {
return;
}
Task<Boolean> task = mPaymentsClient.isReadyToPay(request);
task.addOnCompleteListener(
new OnCompleteListener<Boolean>() {
@Override
public void onComplete(@NonNull Task<Boolean> task) {
try {
boolean result = task.getResult(ApiException.class);
if (result) {
// show Google as a payment option
mGooglePayButton = findViewById(R.id.googlepay);
mGooglePayButton.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View view) {
requestPayment(view);
}
});
mGooglePayButton.setVisibility(View.VISIBLE);
}
} catch (ApiException exception) {
// Erro
}
}
});
}
public void requestPayment(View view) {
Optional<JSONObject> paymentDataRequestJson = GooglePay.getPaymentDataRequest();
if (!paymentDataRequestJson.isPresent()) {
return;
}
PaymentDataRequest request =
PaymentDataRequest.fromJson(paymentDataRequestJson.get().toString());
if (request != null) {
AutoResolveHelper.resolveTask(
mPaymentsClient.loadPaymentData(request), this, LOAD_PAYMENT_DATA_REQUEST_CODE);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// valor passado ao AutoResolveHelper
if (requestCode == LOAD_PAYMENT_DATA_REQUEST_CODE) {
switch (resultCode) {
case Activity.RESULT_OK:
PaymentData paymentData = PaymentData.getFromIntent(data);
String json = paymentData.toJson();
String paymentMethodData = new JSONObject(json)
.getJSONObject(paymentMethodData);
String paymentToken = ((JSONObject) paymentMethodData)
.getJSONObject("tokenizationData")
.getString("token");
break;
case Activity.RESULT_CANCELED:
break;
case AutoResolveHelper.RESULT_ERROR:
Status status = AutoResolveHelper.getStatusFromIntent(data);
Log.i("Status", "Erro na requisição");
// Generally, there is no need to show an error to the user.
// The Google Pay payment sheet will present any account errors.
break;
default:
}
}
}
}
Se alguém puder me ajudar agradeço, já estou tentando resolver a um bom tempo.
