Question

我自学了FireBase存储，我决定制作一个简单的应用程序，让用户选择一个图像，并将其上传到Firebase。 但是，只要我选择要上传的图片，我的应用就会崩溃并说我的URI为空，即使我从我选择的图片中获取

 @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);

        Intent intent = new Intent();
        intent.setType("image/*");
        intent.setAction(Intent.ACTION_GET_CONTENT);
        startActivityForResult(Intent.createChooser(intent, "Select Picture"), 1);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode != RESULT_OK) {
            return;
        }
        if (requestCode == 1) {
            final Bundle extras = data.getExtras();
            if (extras != null) {
                //Get image
                 path = extras.getParcelable("data");
            }
            StorageReference storageRef = FirebaseStorage.getInstance().getReference();
            storageRef.putFile(path)
                    .addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
                        @Override
                        public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                            // Get a URL to the uploaded content
                            @SuppressWarnings("VisibleForTests") Uri downloadUrl = taskSnapshot.getDownloadUrl();
                            Log.e("myTag", "done, " +downloadUrl);
                            Intent sharingIntent = new Intent(Intent.ACTION_SEND);     
                        }
                    })
                    .addOnFailureListener(new OnFailureListener() {
                        @Override
                        public void onFailure(@NonNull Exception exception) {
                          Log.e("myTag", exception.toString());
                        }
                    });
        }
    }

我一直试图解决这个错误超过五个小时，尽管经历了十亿次的文档，我仍然感到困惑。任何帮助表示赞赏！

Answer 1

选定的Uri将作为Intent的{{3}}返回，而不是额外的@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode != RESULT_OK) { return; } if (requestCode == 1) { path = data.getData(); // assumes path is declared as a Uri StorageReference storageRef = FirebaseStorage.getInstance().getReference("images"); storageRef.putFile(path)...。试试这个改变：

zips/2

无法选择图片并上传？

1 个答案: