java - 当我使用 Firebase 电话身份验证登录时，主屏幕打开两次
问题描述
登录.java
package com.example.simpleaccounting;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import android.Manifest;
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Color;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.FirebaseApp;
import com.google.firebase.FirebaseException;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.auth.PhoneAuthCredential;
import com.google.firebase.auth.PhoneAuthOptions;
import com.google.firebase.auth.PhoneAuthProvider;
import com.google.zxing.pdf417.encoder.PDF417;
import java.util.concurrent.TimeUnit;
public class Login extends AppCompatActivity {
private EditText countryCodeEdit, phoneNumberEdit;
private Button mSendOTPBtn;
ProgressDialog progressDialog;
TextView processText;
private FirebaseAuth auth;
private PhoneAuthProvider.OnVerificationStateChangedCallbacks mCallBacks;
private Boolean authFlag = false;
//permission constants
private static final int CAMERA_REQUEST_CODE = 100;
private static final int STORAGE_REQUEST_CODE = 101;
//image pick constants
private static final int IMAGE_PICK_CAMERA_CODE = 102;
private static final int IMAGE_PICK_GALLERY_CODE = 103;
//arrays of permissions
private String[] cameraPermissions; //camera and storage
private String[] storagePermissions; // only storage
//variables (will contain data to save)
private Uri imageUri;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
mSendOTPBtn = findViewById(R.id.send_codebtn);
processText = findViewById(R.id.text_process);
countryCodeEdit = findViewById(R.id.input_country_code);
phoneNumberEdit = findViewById(R.id.input_phone);
//init permission arrays
cameraPermissions = new String[]{Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE};
requestCameraPermission();
//set by default text for country code
countryCodeEdit.setText("91");
auth = FirebaseAuth.getInstance();
mSendOTPBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//initialize progress dialog
progressDialog = new ProgressDialog(Login.this);
//show progress dialog
progressDialog.show();
//set Content View
progressDialog.setContentView(R.layout.progress_dialog);
//set transparent background
progressDialog.getWindow().setBackgroundDrawableResource(
android.R.color.transparent
);
String country_code = countryCodeEdit.getText().toString();
String phone = phoneNumberEdit.getText().toString();
String phoneNumber = "+" + country_code + "" + phone;
if (!country_code.isEmpty() || !phone.isEmpty()) {
PhoneAuthOptions options = PhoneAuthOptions.newBuilder(auth)
.setPhoneNumber(phoneNumber)
.setTimeout(60L, TimeUnit.SECONDS)
.setActivity(Login.this)
.setCallbacks(mCallBacks)
.build();
PhoneAuthProvider.verifyPhoneNumber(options);
} else {
processText.setText("Please Enter Country Code and Phone Number");
processText.setTextColor(Color.RED);
processText.setVisibility(View.VISIBLE);
}
}
});
mCallBacks = new PhoneAuthProvider.OnVerificationStateChangedCallbacks() {
@Override
public void onVerificationCompleted(@NonNull PhoneAuthCredential phoneAuthCredential) {
signIn(phoneAuthCredential);
}
@Override
public void onVerificationFailed(@NonNull FirebaseException e) {
processText.setText(e.getMessage());
processText.setTextColor(Color.RED);
processText.setVisibility(View.VISIBLE);
}
@Override
public void onCodeSent(@NonNull String s, @NonNull PhoneAuthProvider.ForceResendingToken forceResendingToken) {
super.onCodeSent(s, forceResendingToken);
processText.setText("OTP has been Sent");
processText.setVisibility(View.VISIBLE);
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
Intent otpIntent = new Intent(Login.this, otp.class);
otpIntent.putExtra("auth", s);
startActivity(otpIntent);
}
}, 10000);
}
};
}
private void requestCameraPermission() {
//request the camera permission
ActivityCompat.requestPermissions(this, cameraPermissions, CAMERA_REQUEST_CODE);
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
//result of permssion allowed/denied
switch (requestCode) {
case CAMERA_REQUEST_CODE: {
if (grantResults.length > 0) {
//if allowed returns true otherwise false
boolean cameraAccepted = grantResults[0] == PackageManager.PERMISSION_GRANTED;
boolean storageAccepted = grantResults[0] == PackageManager.PERMISSION_GRANTED;
Toast.makeText(this, cameraAccepted + "", Toast.LENGTH_SHORT).show();
}
}
break;
}
}
@Override
public void onBackPressed() {
//dismiss progress dialog
progressDialog.dismiss();
}
@Override
protected void onStart() {
super.onStart();
FirebaseUser user = auth.getCurrentUser();
if (user != null) {
sendToMain();
}
}
private void sendToMain() {
Intent intent = new Intent(Login.this, MainActivity.class);
startActivity(intent);
finish();
}
private void signIn(PhoneAuthCredential credential) {
auth.signInWithCredential(credential).addOnCompleteListener(new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
if (task.isSuccessful()) {
sendToMain();
} else {
processText.setText(task.getException().getMessage());
processText.setTextColor(Color.RED);
processText.setVisibility(View.VISIBLE);
}
}
});
}
@Override
public void onDestroy() {
super.onDestroy();
if (progressDialog != null && progressDialog.isShowing()) {
progressDialog.cancel();
}
}
}
这是我的登录活动。当我手动编写 otp 时，我没有这个问题，主要活动只打开一次，但是当它自动读取 otp 并从登录（跳过 otp 屏幕）直接将我发送到主要活动时，主要活动打开两次。OTP.java
package com.example.simpleaccounting;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.auth.PhoneAuthCredential;
import com.google.firebase.auth.PhoneAuthProvider;
public class otp extends AppCompatActivity {
private Button mVerifyCodeBtn;
private EditText otpEdit;
private String OTP;
private FirebaseAuth firebaseAuth;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_otp);
mVerifyCodeBtn = findViewById(R.id.verifycode_btn);
otpEdit = findViewById(R.id.verify_code_edit);
firebaseAuth = FirebaseAuth.getInstance();
OTP = getIntent().getStringExtra("auth");
mVerifyCodeBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String verification_code = otpEdit.getText().toString();
if(!verification_code.isEmpty()){
PhoneAuthCredential credential = PhoneAuthProvider.getCredential(OTP,verification_code);
signIn(credential);
}else{
Toast.makeText(otp.this,"Please Enter OTP",Toast.LENGTH_SHORT).show();
}
}
});
}
private void signIn(PhoneAuthCredential credential){
firebaseAuth.signInWithCredential(credential).addOnCompleteListener(new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
if(task.isSuccessful()){
sendToMain();
}else{
Toast.makeText(otp.this,"Verification Failed",Toast.LENGTH_SHORT).show();
}
}
});
}
@Override
protected void onStart() {
super.onStart();
FirebaseUser currentUser = firebaseAuth.getCurrentUser();
if(currentUser!=null){
sendToMain();
}
}
private void sendToMain(){
startActivity(new Intent(otp.this, MainActivity.class));
finish();
}
}
这是我的 otp 屏幕活动代码。登录后我的主要活动打开，但在 5 秒内我的主要活动再次打开。谁能帮我解决这个问题。提前致谢。
解决方案
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