上传图像到Firebase存储，从摄像头android

Question

我有一个问题与我的代码，我必须上传图像到Firebase存储，我需要的图像来自画廊和相机，从画廊的图像是好的，但来自相机的图像给问题，图像加载在ImageView和被发送到数据库是黑色的。有人知道如何解决这个问题吗，或者你知道任何其他加载图像的方法吗？

//Funçao de escolha das opcoes de upload---------------------------------------------------------
private void jeitoImagem() {

    final CharSequence[] jeito = {"Camera", "Galeria", "Cancelar"};

    //Alert Dialog com as opçoes de escolha-----------------------------------------------------
    AlertDialog.Builder b = new AlertDialog.Builder(CadastroEmpresaActivity.this, R.style.Theme_AppCompat_Light_Dialog_Alert);
    b.setTitle("Adicionar imagem");
    b.setItems(jeito, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialogInterface, int i) {
            if(jeito[i].equals("Camera")){
                abrirCamera();

            } else if(jeito[i].equals("Galeria")){
                abrirGaleria();

            } else if(jeito[i].equals("Cancelar")){
                dialogInterface.dismiss();
            }

        }
    });

    b.create();
    b.show();



}

//Funçao de upar imagem da galeria--------------------------------------------------------------
public void abrirGaleria() {
    Intent i = new Intent(Intent.ACTION_PICK);
    i.setType("image/*");
    startActivityForResult(i,GALERIA);
}

//Funçao de upar imagem da camera---------------------------------------------------------------
public void abrirCamera() {
    Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    startActivityForResult(i, CAMERA);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    //passando o data pra variavel uri----------------------------------------------------------
    uri = data.getData();

    //Verificando a opçao que foi selecionada---------------------------------------------------

来自画廊

    if(requestCode == GALERIA && resultCode == RESULT_OK && uri != null){
        //Chamando instancia do Storage---------------------------------------------------------
        storageReference1 = FirebaseStorage.getInstance().getReference();
        try {
            //Setando imagem no imageView-------------------------------------------------------
            Bitmap b = MediaStore.Images.Media.getBitmap(CadastroEmpresaActivity.this.getContentResolver(), uri);
            imagem.setImageBitmap(b);

            //Chamando o Storage pra salvar a imagem--------------------------------------------
            StorageReference ref  = storageReference1.child("Usuario" + System.currentTimeMillis() +".MiBuy");

            ref.putFile(uri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
                @Override
                public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                    //Passando url da imagem pra variavel---------------------------------------
                    urlImage = taskSnapshot.getDownloadUrl().toString();

                    //Alert Dialog de aviso do upload da imagem---------------------------------
                    AlertDialog.Builder b = new AlertDialog.Builder(CadastroEmpresaActivity.this, R.style.Theme_AppCompat_Light_Dialog_Alert);
                    b.getContext();
                    b.setTitle(R.string.upload_imagem);
                    b.setMessage(R.string.texto_upload_imagem);
                    b.setPositiveButton("OK", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialogInterface, int i) {
                            dialogInterface.dismiss();

                        }
                    });
                    b.create();
                    b.show();




                }
            });




        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    //Verificando a opçao que foi selecionada---------------------------------------------------

从相机

     if (requestCode == CAMERA && resultCode == RESULT_OK){
        //Chamando instancia do Storage---------------------------------------------------------
        storageReference2 = FirebaseStorage.getInstance().getReference();
        //Caminho da URL------------------------------------------------------------------------
        StorageReference mref = storageReference2.child("Usuario"+ System.currentTimeMillis()+"MiBuy");

        //Liberando cache nas imagens-----------------------------------------------------------
        imagem.setDrawingCacheEnabled(true);
        imagem.buildDrawingCache();

        //Criando bitmap------------------------------------------------------------------------

        Bitmap bitmap = imagem.getDrawingCache();
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
        byte[] dd = baos.toByteArray();

        //Upando a imagem pro firebase----------------------------------------------------------
        UploadTask uploadTask = mref.putBytes(dd);
        uploadTask.addOnFailureListener(new OnFailureListener() {
            @Override
            public void onFailure(@NonNull Exception exception) {
                //Alert Dialog de aviso de erro no upload da imagem-----------------------------
                AlertDialog.Builder b = new AlertDialog.Builder(CadastroEmpresaActivity.this, R.style.Theme_AppCompat_Light_Dialog_Alert);
                b.getContext();
                b.setTitle(R.string.erro_upload_imagem);
                b.setMessage(R.string.texto_erro_upload_imagem);
                b.setPositiveButton("OK", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        dialogInterface.dismiss();

                    }
                });
                b.create();
                b.show();
            }
        }).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
            @Override
            public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                //Alert Dialog de aviso do upload da imagem-------------------------------------
                AlertDialog.Builder b = new AlertDialog.Builder(CadastroEmpresaActivity.this, R.style.Theme_AppCompat_Light_Dialog_Alert);
                b.getContext();
                b.setTitle(R.string.upload_imagem);
                b.setMessage(R.string.texto_upload_imagem);
                b.setPositiveButton("OK", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        dialogInterface.dismiss();

                    }
                });
                b.create();
                b.show();

                //Passando url da imagem pra variavel-------------------------------------------
                Uri ddownload = taskSnapshot.getDownloadUrl();
                urlImage = taskSnapshot.getDownloadUrl().toString();

                //Colocando imagem no imageView
                Picasso.with(CadastroEmpresaActivity.this).load(ddownload).into(imagem);

            }
        });


    }

}

Answer 1

用于启动相机应用的意图仅返回缩略图，您可以从返回的数据中获得缩略图：

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == CAMERA && resultCode == RESULT_OK) {
        Bundle extras = data.getExtras();
        Bitmap imageBitmap = (Bitmap) extras.get("data");
        ...
        mImageView.setImageBitmap(imageBitmap);
    }
}

如果您想获得一个全尺寸的图像，您必须创建一个文件来保存该图像，为该文件创建一个URI，并将URI作为额外内容添加到意图中。这在留档中描述。