Firebase Auth: 我想获得当前的用户资料照片，并将其上传到Firebase数据库或存储空间。

Question 1

我想在我的聊天应用程序中的图像视图夹中显示个人资料图片。我已经实现了Firebase auth sign in方法，如谷歌和Facebook。所以我想在用户聊天时显示他们的图片。我可以通过 FirebaseAuth.getInstance().getCurrentUser().getPhotoUrl(); 显示当前用户的图片。但是，当我想获得另一个用户的图像时？所以我尝试了以下方法。

当他们注册到应用程序时，我可以获得他们的个人资料图片，并将其上传到Firebase存储。之后，我可以在应用程序的聊天头中使用它。所以下面的代码是

Uri dpUri = currentFirebaseUser.getPhotoUrl();
if (dpUri != null) {
    final ProgressDialog progressDialog = new ProgressDialog(this);
    progressDialog.setTitle("Uploading...");
    progressDialog.show();
    final StorageReference ref = storageReference.child(currentFirebaseUser.getUid());
    ref.putFile(dpUri)
            .addOnSuccessListener(taskSnapshot -> {
                ref.getDownloadUrl().addOnSuccessListener(uri -> databaseReference.child("Users").child(currentFirebaseUser.getUid()).child("URL").setValue(uri.toString()));
                progressDialog.dismiss();
                LocationOn();
            .addOnFailureListener(e -> {
                progressDialog.dismiss();
                Toast.makeText(SignActivity.this, "Failed " + e.getMessage(), Toast.LENGTH_SHORT).show();
            .addOnProgressListener(taskSnapshot -> {
                double progress = (100.0 * taskSnapshot.getBytesTransferred() / taskSnapshot
                        .getTotalByteCount());
                progressDialog.setMessage("Uploaded " + (int) progress + "%");
但是无法阅读，我得到了这个错误。
E/UploadTask: could not locate file for uploading:https://lh3.googleusercontent.com/a/AATXAJzFGstrkeyXMQUU9XIKEXIL8jgEgm1T-EKi3AW1=s96-c
E/StorageException: StorageException has occurred.
    An unknown error occurred, please check the HTTP result code and inner exception for server response.
     Code: -13000 HttpResult: 0
E/StorageException: No content provider: https://lh3.googleusercontent.com/a/AATXAJzFGstrkeyXMQUU9XIKEXIL8jgEgm1T-EKi3AW1=s96-c
    java.io.FileNotFoundException: No content provider: https://lh3.googleusercontent.com/a/AATXAJzFGstrkeyXMQUU9XIKEXIL8jgEgm1T-EKi3AW1=s96-c
        at android.content.ContentResolver.openTypedAssetFileDescriptor(ContentResolver.java:1979)
        at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1808)
        at android.content.ContentResolver.openInputStream(ContentResolver.java:1485)
        at com.google.firebase.storage.UploadTask.<init>(UploadTask.java:131)
        at com.google.firebase.storage.StorageReference.putFile(StorageReference.java:240)
        at com.myapp.SignActivity.uploadImage(SignActivity.java:143)
        at com.axresapps.wheresapplk.SignActivity.lambda$onCreate$2$SignActivity(SignActivity.java:123)
        at com.myapp.-$$Lambda$SignActivity$__O5f7J8hhcqZRFrdV0j4-3CaQk.onClick(Unknown Source:4)
        at android.view.View.performClick(View.java:8160)
        at android.widget.TextView.performClick(TextView.java:16222)
        at android.view.View.performClickInternal(View.java:8137)
        at android.view.View.access$3700(View.java:888)
        at android.view.View$PerformClick.run(View.java:30236)
        at android.os.Handler.handleCallback(Handler.java:938)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:246)
        at android.app.ActivityThread.main(ActivityThread.java:8512)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
E/StorageException: StorageException has occurred.
    An unknown error occurred, please check the HTTP result code and inner exception for server response.
     Code: -13000 HttpResult: 0
E/StorageException: No content provider: https://lh3.googleusercontent.com/a/AATXAJzFGstrkeyXMQUU9XIKEXIL8jgEgm1T-EKi3AW1=s96-c
    java.io.FileNotFoundException: No content provider: https://lh3.googleusercontent.com/a/AATXAJzFGstrkeyXMQUU9XIKEXIL8jgEgm1T-EKi3AW1=s96-c
        at android.content.ContentResolver.openTypedAssetFileDescriptor(ContentResolver.java:1979)
        at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1808)
        at android.content.ContentResolver.openInputStream(ContentResolver.java:1485)
        at com.google.firebase.storage.UploadTask.<init>(UploadTask.java:131)
        at com.google.firebase.storage.StorageReference.putFile(StorageReference.java:240)
        at com.axresapps.wheresapplk.SignActivity.uploadImage(SignActivity.java:143)
        at com.myapp.SignActivity.lambda$onCreate$2$SignActivity(SignActivity.java:123)
        at com.axresapps.wheresapplk.-$$Lambda$SignActivity$__O5f7J8hhcqZRFrdV0j4-3CaQk.onClick(Unknown Source:4)
        at android.view.View.performClick(View.java:8160)
        at android.widget.TextView.performClick(TextView.java:16222)
        at android.view.View.performClickInternal(View.java:8137)
        at android.view.View.access$3700(View.java:888)
        at android.view.View$PerformClick.run(View.java:30236)
        at android.os.Handler.handleCallback(Handler.java:938)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:246)
        at android.app.ActivityThread.main(ActivityThread.java:8512)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
E/StorageException: StorageException has occurred.
    An unknown error occurred, please check the HTTP result code and inner exception for server response.
     Code: -13000 HttpResult: 0
E/StorageException: No content provider: https://lh3.googleusercontent.com/a/AATXAJzFGstrkeyXMQUU9XIKEXIL8jgEgm1T-EKi3AW1=s96-c
    java.io.FileNotFoundException: No content provider: https://lh3.googleusercontent.com/a/AATXAJzFGstrkeyXMQUU9XIKEXIL8jgEgm1T-EKi3AW1=s96-c
        at android.content.ContentResolver.openTypedAssetFileDescriptor(ContentResolver.java:1979)
        at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1808)
        at android.content.ContentResolver.openInputStream(ContentResolver.java:1485)
        at com.google.firebase.storage.UploadTask.<init>(UploadTask.java:131)
        at com.google.firebase.storage.StorageReference.putFile(StorageReference.java:240)
        at com.axresapps.wheresapplk.SignActivity.uploadImage(SignActivity.java:143)
        at com.axresapps.wheresapplk.SignActivity.lambda$onCreate$2$SignActivity(SignActivity.java:123)
        at com.axresapps.wheresapplk.-$$Lambda$SignActivity$__O5f7J8hhcqZRFrdV0j4-3CaQk.onClick(Unknown Source:4)
        at android.view.View.performClick(View.java:8160)
        at android.widget.TextView.performClick(TextView.java:16222)
        at android.view.View.performClickInternal(View.java:8137)
        at android.view.View.access$3700(View.java:888)
        at android.view.View$PerformClick.run(View.java:30236)
        at android.os.Handler.handleCallback(Handler.java:938)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:246)
        at android.app.ActivityThread.main(ActivityThread.java:8512)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)
请帮助我解决这个问题或建议我用其他方法来完成我的任务。

Question 2


          
           
            你可以从以下三种情况中的一种上传文件到Firebase存储。1）一个本地文件，2）一个字节数组，3）一个base64编码的数据字符串。你在调用
            
             putFile
            
            时使用了一个图片的URL，这不被支持。
           
           
            你将不得不采取两步走的办法。
           
           
            Download the data from the URL to the Android device,
           
           
            Then upload the data from the Android device to Storage.
           
           
            
             Upload image from URL to Firebase Storage

Question 3


          
           
            我建议你在上传个人资料图片到FirebaseStorage之前先这样做。
           
           
            Get the image url display on an
            
             ImageView
            
            .
           
           
            Convert the image to bytes.
           
               val bitmap = (binding.ivPicture.drawable as BitmapDrawable).bitmap
    val baos = ByteArrayOutputStream()
    bitmap.compress(
        Bitmap.CompressFormat.JPEG,
    val data = baos.toByteArray()
    // Create file metadata including the content type
    val metadata = storageMetadata {
        contentType = "image/jpeg"
Store the bytes to FirebaseStorage
    val uploadTask = storage.putBytes(data, metadata)
    uploadTask.addOnFailureListener {
        // Handle unsuccessful uploads
        Tools.showToast(
            this,
            "Error uploading image: " + it.message
    }.addOnSuccessListener {
        storage.downloadUrl.addOnCompleteListener { task ->
            if (task.isSuccessful) {
                //Get download url to store in the database.
                val profileUrl = task.result.toString()
            } else {
                Tools.showToast(
                    this,
                    "Error saving: " + task.exception?.message

Question 4


          
           
            
             
              最后我找到了一个解决方案。我做了类似这样的事情!
             
              if(currentFirebaseUser.getPhotoUrl()!=null){
     databaseReference.child("Users").child(currentFirebaseUser.getUid()).child("URL").setValue(currentFirebaseUser.getPhotoUrl().toString());
你会在Firebase数据库中看到图片的网址
如果你使用谷歌OAuth。
https://lh3.googleusercontent.com/a/AATXAJzFGstrkeyXMQUU9XIKEXIL8jgEgm1T-EKi3AW1=s96-c