我尝试将个人资料图片上传到 Firebase 存储，然后将其下载网址保存到数据库。上传工作完美，但我遇到了下载 URL 的问题。我已经尝试了 Stack Overflow 上的几乎所有内容。我正在分享相关代码。
private String user_Name, user_Email, user_Password, user_Age, user_Phone, imageUri;
Uri imagePath;
选择图像
userProfilePic.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setType("image/*"); //Specify the type of intent
intent.setAction(Intent.ACTION_GET_CONTENT); //What action needs to be performed.
startActivityForResult(Intent.createChooser(intent, "Select Image"),
}
});
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) { //Here we get the result from startActivityForResult().
if(requestCode == PICK_IMAGE && resultCode == RESULT_OK && data.getData() != null){
imagePath = data.getData(); //data.getData() holds the path of the file.
try {
Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), imagePath); //this converts the Uri to an image.
userProfilePic.setImageBitmap(bitmap);
imageTrue = 1;
} catch (IOException e) {
e.printStackTrace();
}
}
super.onActivityResult(requestCode, resultCode, data);
}
上传数据
private void sendUserData (){
FirebaseDatabase firebaseDatabase = FirebaseDatabase.getInstance();
DatabaseReference myRef = firebaseDatabase.getReference("Users").child(firebaseAuth.getUid());
final StorageReference imageReference = storageReference.child(firebaseAuth.getUid()).child("Images").child("Profile Pic");
//Here the root storage reference of our app storage is is "storageReference".
//.child(firebaseAuth.getUid()) creates a folder for every user. .child("images")
//creates another subfolder Images and the last child() function
//.child("Profile Pic") always gives the name of the file.
//User id/Images/profile_pic.png
//We can follow the same process for all other file types.
if(imageTrue==1){
UploadTask uploadTask = imageReference.putFile(imagePath); //Now we need to upload the file.
uploadTask.addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
Toast.makeText(getApplicationContext(), "File Upload Failed", Toast.LENGTH_SHORT).show();
}
}).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
imageReference.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
@Override
public void onSuccess(Uri uri) {
Uri downloadUri = uri;
imageUri = downloadUri.toString();
}
});
Toast.makeText(getApplicationContext(), "File Uploaded Successfully", Toast.LENGTH_SHORT).show();
}
});
}
UserProfile userProfile = new UserProfile(user_Name, user_Age, user_Email, user_Phone, imageUri);
myRef.setValue(userProfile);
Toast.makeText(getApplicationContext(), "User Data Sent.", Toast.LENGTH_SHORT).show();
}
最佳答案
你的代码是正确的。您只需要在 sendUserData() 函数中的代码中进行一些更正。您将在 UploadTask
的onSuccess 中获取 imageUrl
DatabaseReference myRef;
private void sendUserData (){
FirebaseDatabase firebaseDatabase = FirebaseDatabase.getInstance();
myRef = firebaseDatabase.getReference("Users").child(firebaseAuth.getUid());
final StorageReference imageReference = storageReference.child(firebaseAuth.getUid()).child("Images").child("Profile Pic");
//Here the root storage reference of our app storage is is "storageReference".
//.child(firebaseAuth.getUid()) creates a folder for every user. .child("images")
//creates another subfolder Images and the last child() function
//.child("Profile Pic") always gives the name of the file.
//User id/Images/profile_pic.png
//We can follow the same process for all other file types.
if(imageTrue==1){
UploadTask uploadTask = imageReference.putFile(imagePath); //Now we need to upload the file.
uploadTask.addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
Toast.makeText(getApplicationContext(), "File Upload Failed", Toast.LENGTH_SHORT).show();
}
}).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
imageReference.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
@Override
public void onSuccess(Uri uri) {
Uri downloadUri = uri;
imageUri = downloadUri.toString();
saveUserDetails(imageUri); // Image uploaded
}
});
Toast.makeText(getApplicationContext(), "File Uploaded Successfully", Toast.LENGTH_SHORT).show();
}
});
}else{
saveUserDetails(""); // Image not uploaded
}
}
saveUserDetails的常用函数:
public void saveUserDetails(String imageUri){
UserProfile userProfile = new UserProfile(user_Name, user_Age, user_Email, user_Phone, imageUri);
myRef.setValue(userProfile);
Toast.makeText(getApplicationContext(), "User Data Sent.", Toast.LENGTH_SHORT).show();
}
关于java - 在 Android Firebase 中获取上传文件的下载 URL 时遇到问题，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/58161629/