检索和显示存储在Firebase存储器中的用户特定图像的好方法是什么?

时间:2019-06-12 08:15:35

标签: android firebase firebase-storage

我正在制作一个显示用户个人资料信息的Android应用。我可以将图像存储在Cloud Storage上,但是我不确定如何检索和显示存储在Cloud Storage中的用户特定图像。

我面临的主要问题之一是user.getPhotoUrl()没有给我正确的uri。它给了我com.google.android.gms的形式。等等。

我尝试使用Glide来显示图像。但是,由于我收到FileNotFoundException,所以它不起作用。因此,我尝试将Glide与S​​torageReference结合使用。

但是,使用StorageReference的问题在于,当我想检索特定于用户的图像时,必须明确提供图像的uri。

我希望用户选择的个人资料图片显示在个人资料页面上,但是当我在Android Studio上运行该应用程序时,没有任何显示。

1 个答案:

答案 0 :(得分:0)

我写了一种方法,可以将位图上传到android的firebase存储中并获取url,请使用该方法上传图片并获取url,之后,如果遇到任何问题,请告诉我。

public static void UploadBitmap(Activity activity, Bitmap bitmap, String serverFileName) {

        if (bitmap == null) {
            return;
        }

        Thread thread = new Thread(new Runnable() {
            @Override
            public void run() {

                FirebaseStorage storage = FirebaseStorage.getInstance();
                StorageReference storageRef = storage.getReference();
                // Create a reference to the file you want to upload
                String directory = "images/";

                StorageReference fileRef = storageRef.child(directory + serverFileName);

                ByteArrayOutputStream stream = new ByteArrayOutputStream();
                bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
                byte[] data = stream.toByteArray();

                activity.runOnUiThread(new Runnable() {
                    @Override
                    public void run() {


                        UploadTask uploadTask = fileRef.putBytes(data);
                        uploadTask.addOnFailureListener(new OnFailureListener() {
                            @Override
                            public void onFailure(@NonNull Exception exception) {
                                // Handle unsuccessful uploads
                                Log.e("oops","error in bitmap uploading");

                            }
                        }).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
                            @Override
                            public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                                // taskSnapshot.getMetadata() contains file metadata such as size, content-type, etc.
                                // ...
                                // now download url first
                            }
                        });

                        Task<Uri> urlTask = uploadTask.continueWithTask(new Continuation<UploadTask.TaskSnapshot, Task<Uri>>() {
                            @Override
                            public Task<Uri> then(@NonNull Task<UploadTask.TaskSnapshot> task) throws Exception {
                                if (!task.isSuccessful()) {
                                    throw task.getException();
                                }

                                // Continue with the task to get the download URL
                                return fileRef.getDownloadUrl();
                            }
                        }).addOnCompleteListener(new OnCompleteListener<Uri>() {
                            @Override
                            public void onComplete(@NonNull Task<Uri> task) {
                                if (task.isSuccessful()) {
                                    Uri downloadUri = task.getResult();
                                    String stringUrl = downloadUri.toString();

                                    // Great image is uploaded and url is here, you can load image anywhere via this stringUrl with Glide or Picasso.

                                } else {
                                    // Handle unsuccessful uploads
                                    Log.e("oops","error in url retrieval");
                                }
                            }
                        });


                    }
                });


            }
        });
        thread.start();




    }