在android studio java上从Firebase存储库下载图像到imageview

Question

我试图用Java从Firebase存储下载一个图像到android studio应用程序的imageView中。我已经浏览了stackoverflow超过6个小时，所以我很可能读到了任何“类似”的问题。我已经尝试了各种方法，但最多的建议和似乎是最简单的是使用滑翔。我无法让它工作，也找不到错误。我甚至在一个普通的谷歌图片链接尝试，它仍然显示空白。

implementation'com.firebaseui:firebase-ui-storage:6.4.0'
implementation'com.github.bumptech.glide:glide:4.12.0'
annotationProcessor'com.github.bumptech.glide:compiler:4.12.0'

我用过的代码

ImageView imageView = findViewById(R.id.resultImage);
Glide.with(this).load("string of image").into(imageView);

我也试过这个代码

StorageReference ref = storage.getReferenceFromUrl("urlforimage");

// ImageView in your Activity
ImageView imageView = findViewById(R.id.uploadedImage);

// Download directly from StorageReference using Glide
Glide.with(this /* context */)
    .load(ref)
    .into(imageView);

而这个代码

public class Breed_Search_Page1Activity extends AppCompatActivity {
ImageView rImage;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_breed__search__page1);
    
    rImage = findViewById(R.id.rImage);
    
    FirebaseDatabase firebaseDatabase = FirebaseDatabase.getInstance();
    
    DatabaseReference databaseReference = firebaseDatabase.getReference();
    
    DatabaseReference getImage = databaseReference.child("image");
    
    getImage.addListenerForSingleValueEvent(new ValueEventListener() {
        @Override
        public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
            String link = dataSnapshot.getValue(String.class);
            Picasso.get().load(link).into(rImage);
        }
        @Override
        public void onCancelled(@NonNull DatabaseError databaseError) {
            // we are showing that error message in toast
            Toast.makeText(Breed_Search_Page1Activity.this, "Error Loading Image", Toast.LENGTH_SHORT).show();
        }
    });
}
}

ImageView image = (ImageView) findViewById(R.id.rImage);

String url = "https//...";
Glide.with(getApplicationContext()).load(url).into(image);

2021-04-27 10:35:01.780 14347-14576/com.example.woofsapp E/StorageException: 
StorageException has occurred.
    Object does not exist at location.
 Code: -13010 HttpResult: 404
2021-04-27 10:35:01.781 14347-14576/com.example.woofsapp E/StorageException: 
{  "error": {    "code": 404,    "message": "Not Found.  Could not get 
object",    "status": "GET_OBJECT"  }}
    java.io.IOException: {  "error": {    "code": 404,    "message": "Not 
Found.  Could not get object",    "status": "GET_OBJECT"  }}
    at com.google.firebase.storage.network.NetworkRequest.parseResponse(NetworkRequest.java:434)
    at com.google.firebase.storage.network.NetworkRequest.parseErrorResponse(NetworkRequest.java:451)
    at com.google.firebase.storage.network.NetworkRequest.processResponseStream(NetworkRequest.java:442)
    at com.google.firebase.storage.network.NetworkRequest.performRequest(NetworkRequest.java:272)
    at com.google.firebase.storage.network.NetworkRequest.performRequest(NetworkRequest.java:286)
    at com.google.firebase.storage.internal.ExponentialBackoffSender.sendWithExponentialBackoff(ExponentialBackoffSender.java:70)
    at com.google.firebase.storage.internal.ExponentialBackoffSender.sendWithExponentialBackoff(ExponentialBackoffSender.java:62)
    at com.google.firebase.storage.GetDownloadUrlTask.run(GetDownloadUrlTask.java:76)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
    at java.lang.Thread.run(Thread.java:764)

给出logcat错误的代码-注意，我确实直接从文档中复制了MyAppGlideModule

ImageView image = findViewById(R.id.rImage);
    StorageReference storageReference = 
FirebaseStorage.getInstance().getReference("Images/dogs.jpg");

    
storageReference.child("dogs.jpg").getDownloadUrl().addOnSuccessListener(new 
OnSuccessListener<Uri>() {
        @Override
        public void onSuccess(Uri uri) {
            // Got the download URL for 'users/me/profile.png'
        }
    }).addOnFailureListener(new OnFailureListener() {
        @Override
        public void onFailure(@NonNull Exception exception) {
            // Handle any errors
        }
    });

Answer 1

StorageReference storageReference = FirebaseStorage.getInstance().getReference("FolderName/photoName.format");

我正在使用带有文件名的路径。

参考，请查看官方文档--在Android上用云存储下载文件。