大家好，我上传图像到服务器，但我面临着奇怪的问题。假设我选择了一个图像并上传了它，然后我再次选择其他图像并上传，但问题是以前上传的图像是随着大小的增加而上传的。我尝试了bitmap recycle（），但它不起作用。我也选择了imageview它显示的是正确的图像，但在上传时它上载的是以前的图像尺寸增大。下面是我的代码

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

        GetImageFromGalleryButton = (Button)findViewById(R.id.buttonSelect);

        UploadImageOnServerButton = (Button)findViewById(R.id.buttonUpload);

        ShowSelectedImage = (ImageView)findViewById(R.id.imageView);

        imageName=(EditText)findViewById(R.id.imageName);

        byteArrayOutputStream = new ByteArrayOutputStream();

        GetImageFromGalleryButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                showPictureDialog();

            }
        });

        uploadImageOnServerButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                GetImageNameFromEditText = imageName.getText().toString();

                uploadImageToServer();

            }
        });

        if (ContextCompat.checkSelfPermission(MainActivity.this, android.Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                requestPermissions(new String[]{android.Manifest.permission.CAMERA},
                        5);
            }
        }
    }

    private void showPictureDialog(){
        AlertDialog.Builder pictureDialog = new AlertDialog.Builder(this);
        pictureDialog.setTitle("Select Action");
        String[] pictureDialogItems = {
                "Photo Gallery",
                "Camera" };
        pictureDialog.setItems(pictureDialogItems,
                new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        switch (which) {
                            case 0:
                                choosePhotoFromGallary();
                                break;
                            case 1:
                                takePhotoFromCamera();
                                break;
                        }
                    }
                });
        pictureDialog.show();
    }
    public void choosePhotoFromGallary() {
        Intent galleryIntent = new Intent(Intent.ACTION_PICK,
                android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);

        startActivityForResult(galleryIntent, GALLERY);
    }

    private void takePhotoFromCamera() {
        Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
        startActivityForResult(intent, CAMERA);
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {

        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode == this.RESULT_CANCELED) {
            return;
        }
        if (requestCode == GALLERY) {
            if (data != null) {
                Uri contentURI = data.getData();
                try {
                    FixBitmap =MediaStore.Images.Media.getBitmap(this.getContentResolver(), contentURI));
                    // String path = saveImage(bitmap);
                    //Toast.makeText(MainActivity.this, "Image Saved!", Toast.LENGTH_SHORT).show();
                    ShowSelectedImage.setImageBitmap(FixBitmap);
                    UploadImageOnServerButton.setVisibility(View.VISIBLE);

                } catch (IOException e) {
                    e.printStackTrace();
                    Toast.makeText(MainActivity.this, "Failed!", Toast.LENGTH_SHORT).show();
                }
            }

        } else if (requestCode == CAMERA) {
            FixBitmap = (Bitmap) data.getExtras().get("data");
            ShowSelectedImage.setImageBitmap(FixBitmap);
            UploadImageOnServerButton.setVisibility(View.VISIBLE);
            //  saveImage(thumbnail);
            //Toast.makeText(ShadiRegistrationPart5.this, "Image Saved!", Toast.LENGTH_SHORT).show();
        }
    }

    public void uploadImageToServer(){

        FixBitmap.compress(Bitmap.CompressFormat.JPEG, 40, byteArrayOutputStream);

        byteArray = byteArrayOutputStream.toByteArray();

        ConvertImage = Base64.encodeToString(byteArray, Base64.DEFAULT);

        class asyncTaskUploadClass extends asyncTask<Void,Void,String> {

            @Override
            protected void onPreExecute() {

                super.onPreExecute();

                progressDialog = ProgressDialog.show(MainActivity.this,"Image is Uploading","Please Wait",false,false);
            }

            @Override
            protected void onPostExecute(String string1) {

                super.onPostExecute(string1);

                progressDialog.dismiss();

                Toast.makeText(MainActivity.this,string1,Toast.LENGTH_LONG).show();

            }

            @Override
            protected String doInBackground(Void... params) {

                ImageProcessClass imageProcessClass = new ImageProcessClass();

                HashMap<String,String> HashMapParams = new HashMap<String,String>();

                HashMapParams.put(ImageTag, GetImageNameFromEditText);

                HashMapParams.put(ImageName, ConvertImage);

                String FinalData = imageProcessClass.ImageHttpRequest("http://techvengerlabs.tk/new/upload-image-to-server.php", HashMapParams);

                return FinalData;
            }
        }
        asyncTaskUploadClass asyncTaskUploadClassOBJ = new asyncTaskUploadClass();
        asyncTaskUploadClassOBJ.execute();
        FixBitmap.eraseColor(Color.TRANSPARENT);
    }

    public class imageProcessClass{

        public String imageHttpRequest(String requestURL,HashMap<String, String> PData) {

            StringBuilder stringBuilder = new StringBuilder();

            try {
                url = new URL(requestURL);

                httpURLConnection = (HttpURLConnection) url.openConnection();

                httpURLConnection.setReadTimeout(20000);

                httpURLConnection.setConnectTimeout(20000);

                httpURLConnection.setRequestMethod("POST");

                httpURLConnection.setDoInput(true);

                httpURLConnection.setDoOutput(true);

                outputStream = httpURLConnection.getOutputStream();

                bufferedWriter = new BufferedWriter(

                        new OutputStreamWriter(outputStream, "UTF-8"));

                bufferedWriter.write(bufferedWriterDataFN(PData));

                bufferedWriter.flush();

                bufferedWriter.close();

                outputStream.close();

                RC = httpURLConnection.getResponseCode();

                if (RC == HttpsURLConnection.HTTP_OK) {

                    bufferedReader = new BufferedReader(new InputStreamReader(httpURLConnection.getInputStream()));

                    stringBuilder = new StringBuilder();

                    String RC2;

                    while ((RC2 = bufferedReader.readLine()) != null){

                        stringBuilder.append(RC2);
                    }
                }

            } catch (Exception e) {
                e.printStackTrace();
            }
            return stringBuilder.toString();
        }

        private String bufferedWriterDataFN(HashMap<String, String> HashMapParams) throws UnsupportedEncodingException {

            stringBuilder = new StringBuilder();

            for (Map.Entry<String, String> KEY : HashMapParams.entrySet()) {
                if (check)
                    check = false;
                else
                    stringBuilder.append("&");

                stringBuilder.append(URLEncoder.encode(KEY.getKey(), "UTF-8"));

                stringBuilder.append("=");

                stringBuilder.append(URLEncoder.encode(KEY.getValue(), "UTF-8"));
            }

            return stringBuilder.toString();
        }

    }