【发布时间】：2021-09-05 00:07:17
【问题描述】：
我已经实现了将用户照片上传到存储并将其检索到 firestore 和 realtimeDB 的代码。问题是当我将 imageuri 设置为数据库时：
然后我（或用户）将照片更新到 firebase，URI 已成功更新为配置文件字符串..（firestore）和图像 srting（realtimeDB）。但一段时间后/应用关闭后，照片无法正确加载（或消失），它没有使用 firebase 令牌作为下载 Uri。
它是这样的： content://com.android.providers.media.documents/document/image%3A81399
然后我附加了另一个代码以从存储中获取更新的图像 URL。但是另一个问题
目前，两个数据库都没有存储 URL
我附上了下面的代码。
public class ProfileFragment extends Fragment {
public ProfileFragment() {
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
CircleImageView profileImageView;
FragmentProfileBinding binding;
private Uri photoUri;
private String imageUrl;
FirebaseFirestore firestore;
FirebaseStorage storage;
FirebaseAuth auth;
StorageReference storageReference;
DocumentReference documentReference;
DatabaseReference DBreference;
String currentUserId;
User user; //class
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
binding = FragmentProfileBinding.inflate(inflater, container, false);
firestore = FirebaseFirestore.getInstance();
auth = FirebaseAuth.getInstance();
storage = FirebaseStorage.getInstance();
auth = FirebaseAuth.getInstance();
FirebaseUser fUser = FirebaseAuth.getInstance().getCurrentUser();
currentUserId = fUser.getUid();
documentReference = firestore.collection("Users").document(currentUserId);
storageReference = FirebaseStorage.getInstance().getReference().child("Profile Pictures");
DBreference = FirebaseDatabase.getInstance().getReference().child("Users");
update = binding.updateBtn;
profileImageView= binding.profilePhoto;
clickListener();
return binding.getRoot();
}
private void clickListener() {
profileImageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setAction(Intent.ACTION_GET_CONTENT);
intent.setType("image/*");
//noinspection deprecation
startActivityForResult(intent, 3);
}
});
update.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
progressDialog.show();
StorageReference reference = storage.getReference().child("Profile Pictures")
.child(FirebaseAuth.getInstance().getUid());
reference.putFile(photoUri)
.addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
storageReference.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
@Override
public void onSuccess(Uri uri) {
imageUrl = uri.toString();
updateUserProfileToFirestore();
updateUserProfileToDataBase();
}
});
}
}).addOnProgressListener(new OnProgressListener<UploadTask.TaskSnapshot>() {
@Override
public void onProgress(@NonNull @NotNull UploadTask.TaskSnapshot snapshot) {
long totalSi = snapshot.getTotalByteCount();
long transferS = snapshot.getBytesTransferred();
long totalSize = (totalSi / 1024);
long transferSize = transferS / 1024;
progressDialog.setMessage("Uploaded " + ((int) transferSize) + "KB / " + ((int) totalSize) + "KB");
}
});
}
});
}
@SuppressWarnings("deprecation")
@Override
public void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
try {
if (data.getData() != null) {
photoUri = data.getData();
// profileImageView.setImageURI(imageUri);
}
Toast.makeText(getContext(), "Photo selected!", Toast.LENGTH_SHORT).show();
}catch (Exception e){
Toast.makeText(getContext(), "Error"+e, Toast.LENGTH_SHORT).show();
}
}
private void updateUserProfileToFirestore() {
Map<String, Object> profile = new HashMap<>();
profile.put("profile", imageUrl);
final DocumentReference sDoc = firestore.collection("Users").document(FirebaseAuth.getInstance().getUid());
firestore.runTransaction(new Transaction.Function<Void>() {
@Override
public Void apply(@NonNull Transaction transaction) throws FirebaseFirestoreException {
DocumentSnapshot snapshot = transaction.get(sDoc);
transaction.update(sDoc, profile);
// transaction.update(sDoc, "name", binding.nameBox.getText() );
return null;
}
}).addOnSuccessListener(new OnSuccessListener<Void>() {
@Override
public void onSuccess(Void unused) {
progressDialog.setMessage("updated!");
progressDialog.dismiss();
Toast.makeText(getContext(), "Photo Updated!", Toast.LENGTH_LONG).show();
}
}).addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
progressDialog.setMessage("Can't upload");
progressDialog.dismiss();
Toast.makeText(getContext(), "Failed to update, try again later", Toast.LENGTH_SHORT).show();
}
});
// final DatabaseReference
}
// Realtime database
private void updateUserProfileToDataBase() {
HashMap<String, Object> map = new HashMap<>();
map.put("image", imageUrl);
DBreference.child(FirebaseAuth.getInstance().getUid())
.updateChildren(map)
.addOnCompleteListener(new OnCompleteListener<Void>() {
@Override
public void onComplete(@NonNull Task<Void> task) {
progressDialog.dismiss();
}
}).addOnSuccessListener(new OnSuccessListener<Void>() {
@Override
public void onSuccess(Void unused) {
Toast.makeText(getContext(), "Success", Toast.LENGTH_SHORT).show();
}
}).addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull @NotNull Exception e) {
Toast.makeText(getContext(), "Failed!", Toast.LENGTH_SHORT).show();
}
});
}
}
【问题讨论】：
-
如果您遇到问题，最好在发布问题时创建MCVE。您为此问题发布了近 400（四百）行行代码。人们需要解析和尝试在线调试的内容很多。请编辑您的问题并隔离问题，这样可以增加获得帮助的机会。
-
@AlexMamo 我更新了，可以吗？？
-
如果应用程序崩溃，会有一个堆栈跟踪。请在 logcat 上查找，并将其添加到您的问题中。
-
@AlexMamo 应用程序没有崩溃。
-
应用程序很可能因为崩溃而关闭，对吧？
标签： android url firebase-realtime-database google-cloud-firestore firebase-storage