java.lang.NullPointerException: 'boolean com.google.firebase.auth.FirebaseUser.isEmailVerified()'在空对象引用上

发布于 01-14 00:06 字数 1394 浏览 3 评论 0原文

我该如何解决这个问题?

Java.lang.NullPointerException:尝试在空对象引用上调用虚拟方法“boolean com.google.firebase.auth.FirebaseUser.isEmailVerified()”

这是我的代码

private void signIn(){
    loadingLogin(true);
    FirebaseUser firebaseUser = mAuth.getCurrentUser();
    mAuth.signInWithEmailAndPassword(binding.inputEmailL.getText().toString(), binding.inputPasswordL.getText().toString())
            .addOnCompleteListener(new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {

                    if(task.isSuccessful() && firebaseUser.isEmailVerified() && task.getResult()!=null){
                        
                        Intent intent = new Intent(getApplicationContext(), HomeActivity.class);
                        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
                        startActivity(intent);
                        finish();

                    }else if (!firebaseUser.isEmailVerified()){
                        loadingLogin(false);
                        showToast("Please verify your email");
                    }else{
                        loadingLogin(false);
                        showToast("Login failed, please try again");
                    }
                }
            });


}

How Do I solve this issue?

Java.lang.NullPointerException: Attempt to invoke virtual method 'boolean com.google.firebase.auth.FirebaseUser.isEmailVerified()' on a null object reference

Here is My Code

private void signIn(){
    loadingLogin(true);
    FirebaseUser firebaseUser = mAuth.getCurrentUser();
    mAuth.signInWithEmailAndPassword(binding.inputEmailL.getText().toString(), binding.inputPasswordL.getText().toString())
            .addOnCompleteListener(new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {

                    if(task.isSuccessful() && firebaseUser.isEmailVerified() && task.getResult()!=null){
                        
                        Intent intent = new Intent(getApplicationContext(), HomeActivity.class);
                        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
                        startActivity(intent);
                        finish();

                    }else if (!firebaseUser.isEmailVerified()){
                        loadingLogin(false);
                        showToast("Please verify your email");
                    }else{
                        loadingLogin(false);
                        showToast("Login failed, please try again");
                    }
                }
            });


}

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评论(1

甜宝宝2025-01-21 00:06:56

正确答案

private void signIn(){

    loadingLogin(true);

    mAuth.signInWithEmailAndPassword(binding.inputEmailL.getText().toString(), binding.inputPasswordL.getText().toString())
            .addOnCompleteListener(new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    FirebaseUser firebaseUser = mAuth.getCurrentUser();
                    if(task.isSuccessful() && firebaseUser!=null && firebaseUser.isEmailVerified() && task.getResult()!=null){

                        Intent intent = new Intent(getApplicationContext(), HomeActivity.class);
                        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
                        startActivity(intent);
                        finish();

                    }else if (firebaseUser!=null && !firebaseUser.isEmailVerified()){
                        loadingLogin(false);
                        showToast("Please verify your email");
                    }else{
                        loadingLogin(false);
                        showToast("Login failed, please try again");
                    }
                }
            });


}

Correct Answer

private void signIn(){

    loadingLogin(true);

    mAuth.signInWithEmailAndPassword(binding.inputEmailL.getText().toString(), binding.inputPasswordL.getText().toString())
            .addOnCompleteListener(new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    FirebaseUser firebaseUser = mAuth.getCurrentUser();
                    if(task.isSuccessful() && firebaseUser!=null && firebaseUser.isEmailVerified() && task.getResult()!=null){

                        Intent intent = new Intent(getApplicationContext(), HomeActivity.class);
                        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
                        startActivity(intent);
                        finish();

                    }else if (firebaseUser!=null && !firebaseUser.isEmailVerified()){
                        loadingLogin(false);
                        showToast("Please verify your email");
                    }else{
                        loadingLogin(false);
                        showToast("Login failed, please try again");
                    }
                }
            });


}
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