如何将时间戳转换为正常时间？

Question

然而，我想知道你如何将它转换成没有GMT或年份的时间和日期，例如Sat 04月03日14:00:00，这就是它

我的Add.java

    private void uploadData(String imageURL) {


        CollectionReference reference = FirebaseFirestore.getInstance().collection("Users")
                .document(user.getUid()).collection("Post Images");
        String id = reference.document().getId();
        String description = descET.getText().toString();

        Map<String, Object> map = new HashMap<>();
        map.put("id", id);
        map.put("description", description);
        map.put("imageUrl", imageURL);
        map.put("timestamp", FieldValue.serverTimestamp());


        map.put("name", user.getDisplayName());
        map.put("profileImage",String.valueOf(user.getPhotoUrl()));
        map.put("likeCount", 0);
        map.put("Comments", "");
        map.put("uid", user.getUid());

        reference.document(id).set(map)
                .addOnCompleteListener(new OnCompleteListener<Void>() {
                    @Override
                    public void onComplete(@NonNull Task<Void> task) {
                        if(task.isSuccessful()){
                            System.out.println();
                            Toast.makeText(getContext(), "Uploaded", Toast.LENGTH_SHORT).show();
                        }else{
                            Toast.makeText(getContext(), "Error: "+task.getException().getMessage(), Toast.LENGTH_SHORT).show();
                        }
                        dialog.dismiss();
                    }
                });


    }

我的配置文件.java

    private void uploadImage(Uri uri) {
        StorageReference reference = FirebaseStorage.getInstance().getReference().child("Profile Images");

        reference.putFile(uri)
                .addOnCompleteListener(new OnCompleteListener<UploadTask.TaskSnapshot>() {
                    @Override
                    public void onComplete(@NonNull Task<UploadTask.TaskSnapshot> task) {
                        if (task.isSuccessful()) {
                            reference.getDownloadUrl()
                                    .addOnSuccessListener(new OnSuccessListener<Uri>() {
                                        @Override
                                        public void onSuccess(Uri uri) {
                                            String imageURL = uri.toString();
                                            UserProfileChangeRequest.Builder request = new UserProfileChangeRequest.Builder();
                                            request.setPhotoUri(uri);

                                            user.updateProfile(request.build());
                                            Map<String, Object> map = new HashMap<>();
                                            map.put("profileImage", imageURL);
                                            map.put("date", FieldValue.serverTimestamp());
                                            FirebaseFirestore.getInstance().collection("Users")
                                                    .document(user.getUid())
                                                    .update(map).addOnCompleteListener(new OnCompleteListener<Void>() {
                                                @Override
                                                public void onComplete(@NonNull Task<Void> task) {
                                                    if (task.isSuccessful())
                                                        Toast.makeText(getContext(), "Updated Successfully", Toast.LENGTH_SHORT).show();
                                                    else
                                                        Toast.makeText(getContext(), "Error: " + task.getException().getMessage(), Toast.LENGTH_SHORT).show();
                                                }
                                            });
                                        }
                                    });
                        } else {
                            Toast.makeText(getContext(), "Error: " + task.getException().getMessage(), Toast.LENGTH_SHORT).show();
                        }
                    }
                });

这里的任何帮助都将得到极大的理解。

Answer 1

您可以这样做：

public class Main {
     public static void main(String[] args) {
          String normalTime = convertTimestampToNormalTime("Sat Apr 03 14:19:53 
          GMT+01:00 2021");
          System.out.println(normalTime);
     }

     public static String convertTimestampToNormalTime(String timestamp) {
          String[] arrOfTime = timestamp.split("GMT");
          return arrOfTime[0];
     }

 }