上传用户Firebase的个人资料图片 [英] Upload profile image for a user Firebase

问题描述

我正在尝试将图像添加到android的实时数据库(firebase)中的用户信息中.我已将图像上传到Firebase存储器上，但是如何为该用户在数据库中添加图像?

I am trying to add an image to the user information in the real time database(firebase) for android. I have uploaded the image on the firebase storage but how will I be able to add the image in the database for that user?

以下代码:

//inside onCreate() method

img.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent i=new Intent(Intent.ACTION_PICK);
            i.setType("image/*");
            startActivityForResult(i,request_code);
        }
    });

我在这里单击图像视图，因此可以对其进行更改并从图库中获取图像.

Here I am clicking on the imageview, so I will be able to change it and get an image from the gallery.

在这里，我对用户进行身份验证并将数据发送到数据库:

Here I authenticate the user and send data to the database:

 auth.createUserWithEmailAndPassword(email, password)
                    .addOnCompleteListener(StudentSignUpActivity.this, new OnCompleteListener<AuthResult>() {
                        @Override
                        public void onComplete(@NonNull Task<AuthResult> task) {
                            Toast.makeText(getApplicationContext(), "createUserWithEmail:onComplete:" + task.isSuccessful(), Toast.LENGTH_SHORT).show();
                            progressBar.setVisibility(View.GONE);
                            // If sign in fails, display a message to the user. If sign in succeeds
                            // the auth state listener will be notified and logic to handle the
                            // signed in user can be handled in the listener.
                            if (!task.isSuccessful()) {
                                Toast.makeText(getApplicationContext(), "Authentication failed." + task.getException(),
                                        Toast.LENGTH_SHORT).show();
                            } else {
                                startActivity(new Intent(StudentSignUpActivity.this, HomeActivity.class));
                                finish();
                            }
                        }
                    });

mCurrentUser=FirebaseAuth.getInstance().getCurrentUser();
            DatabaseReference newStudent=mDatabase.push();
            newStudent.child("email").setValue(email);
            newStudent.child("password").setValue(password);
            newStudent.child("name").setValue(name);
            newStudent.child("date").setValue(dates);
            newStudent.child("phone").setValue(number);
            newStudent.child("uid").setValue(mCurrentUser.getUid());


//outside of onCreate()

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if(requestCode==request_code&&resultCode==RESULT_OK){
        Uri uri=data.getData();
        StorageReference filepath=mStorage.child("Images").child(uri.getLastPathSegment());
        filepath.putFile(uri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
            @Override
            public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {

            }
        });
    }
}

在上面的代码中，我已将图像上传到Firebase存储.现在，我将如何为特定用户将该图像添加为子图像.

In the above code I have uploaded the image to the firebase storage. Now how will i be able to add that image as a child for a specific user.

我认为我需要做这样的事情:

I think I need to do something like this:

 newStudent.child("image").setValue(uri_here);

但是我无法弄清楚如何获取图像的uri，以及如何在setValue()中添加该uri，因为它是另一种方法.

But I am unable to figure how to get the uri of the image and how to add that uri in the setValue() since its in another method.

推荐答案

您可以在成功侦听器中使用方法getDownloadUrl()来访问下载URL:

You can use the method getDownloadUrl() in the success listener to access the download URL:

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if(requestCode==request_code&&resultCode==RESULT_OK){
        Uri uri=data.getData();
        StorageReference filepath=mStorage.child("Images").child(uri.getLastPathSegment());
        filepath.putFile(uri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
            @Override
            public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                Uri downloadUrl = taskSnapshot.getDownloadUrl();
                newStudent.child("image").setValue(downloadUrl);
            }
        });
    }
}

顺便说一句，建议不要使用push()，而要使用uid作为键来存储用户数据.这将使您的数据更易于查找.

As an aside, instead of using push(), I recommend storing the user's data with the uid as the key. This will make your data easier to find.

private DatabaseReference newStudent;

mCurrentUser=FirebaseAuth.getInstance().getCurrentUser();
            newStudent=mDatabase.child(mCurrentUser.getUid());
            newStudent.child("email").setValue(email);
            // etc

这篇关于上传用户Firebase的个人资料图片的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！