Question

我正在使用此代码压缩图像..和ftp上传图像。我在我的设备中获取压缩图像，但后端图像已损坏。我有相机和图库选择选项上传图像。

    public String compressImage(String filePath) {

    Bitmap scaledBitmap = null;

    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;
    Bitmap bmp = BitmapFactory.decodeFile(filePath, options);

    int actualHeight = options.outHeight;
    int actualWidth = options.outWidth;
    float maxHeight = 1200.0f;
    float maxWidth = 600.0f;
    float imgRatio = actualWidth / actualHeight;
    float maxRatio = maxWidth / maxHeight;

    if (actualHeight > maxHeight || actualWidth > maxWidth) {
    if (imgRatio < maxRatio) {
    imgRatio = maxHeight / actualHeight;
    actualWidth = (int) (imgRatio * actualWidth);
    actualHeight = (int) maxHeight;
    } else if (imgRatio > maxRatio) {
    imgRatio = maxWidth / actualWidth;
    actualHeight = (int) (imgRatio * actualHeight);
    actualWidth = (int) maxWidth;
    } else {
    actualHeight = (int) maxHeight;
    actualWidth = (int) maxWidth;
    }
    }
    ImageLoadingUtils utils = new ImageLoadingUtils(getApplicationContext());
    options.inSampleSize = utils.calculateInSampleSize(options, actualWidth, actualHeight);
    options.inJustDecodeBounds = false;
    options.inDither = false;
    options.inPurgeable = true;
    options.inInputShareable = true;
    options.inTempStorage = new byte[16 * 1024];

    try {
    bmp = BitmapFactory.decodeFile(filePath, options);
    } catch (OutOfMemoryError exception) {
    exception.printStackTrace();

    }
    try {
    scaledBitmap = Bitmap.createBitmap(actualWidth, actualHeight, Bitmap.Config.ARGB_8888);
    } catch (OutOfMemoryError exception) {
    exception.printStackTrace();
    }

    float ratioX = actualWidth / (float) options.outWidth;
    float ratioY = actualHeight / (float) options.outHeight;
    float middleX = actualWidth / 2.0f;
    float middleY = actualHeight / 2.0f;

    Matrix scaleMatrix = new Matrix();
    scaleMatrix.setScale(ratioX, ratioY, middleX, middleY);

    Canvas canvas = new Canvas(scaledBitmap);
    canvas.setMatrix(scaleMatrix);
    canvas.drawBitmap(bmp, middleX - bmp.getWidth() / 2, middleY - bmp.getHeight() / 2, new Paint(Paint.FILTER_BITMAP_FLAG));


    ExifInterface exif;
    try {
     exif = new ExifInterface(filePath);

    int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, 0);
    Log.d("EXIF", "Exif: " + orientation);
    Matrix matrix = new Matrix();
    if (orientation == 6) {
    matrix.postRotate(90);
    Log.d("EXIF", "Exif: " + orientation);
    } else if (orientation == 3) {
    matrix.postRotate(180);
    Log.d("EXIF", "Exif: " + orientation);
    } else if (orientation == 8) {
    matrix.postRotate(270);
    Log.d("EXIF", "Exif: " + orientation);
    }
    scaledBitmap = Bitmap.createBitmap(scaledBitmap, 0, 0, scaledBitmap.getWidth(), scaledBitmap.getHeight(), matrix, true);
    } catch (IOException e) {
    e.printStackTrace();
    }
    FileOutputStream out = null;
    String filename = getFilename();
    try {
    out = new FileOutputStream(filename);
    scaledBitmap.compress(Bitmap.CompressFormat.JPEG, 80, out);
    } catch (FileNotFoundException e) {
    e.printStackTrace();
    }
    return filename;
    }


    public String getFilename() {
    File file = new File(Environment.getExternalStorageDirectory().getPath());
    if (!file.exists()) {
    file.mkdirs();
    }
    String uriSting = (file.getAbsolutePath() + "/" + System.currentTimeMillis() + ".jpg");
    return uriSting;
    }

  Async task============================================================  
    private class SellAsync extends AsyncTask<String, String, String>
    {
    final ProgressDialog progressDialog = new ProgressDialog(Sell_Main.this);
    long totalSize = 0;


    @Override
    protected String doInBackground(String... urls)
    {

    String msg = "";
    try
    {
    for (int i = 0; i < imageList.size(); i++)
    {
    String filePath = compressImage(imageList.get(i));

    File f = new File(filePath);

    new FileUploader().uploadFile(Sell_Main.this, f);
    }
    if (!FileUploader.flag) {
    throw new Exception("File uploading failed");
    }

    ArrayList<NameValuePair> arr = new ArrayList<NameValuePair>();
    arr.add(new BasicNameValuePair("brand", brand));
    arr.add(new BasicNameValuePair("model", model));
    arr.add(new BasicNameValuePair("variant", variant));
    arr.add(new BasicNameValuePair("fuel_type", fuelspinner));
    arr.add(new BasicNameValuePair("kilometres", km));
    arr.add(new BasicNameValuePair("transmission", trans
         arr.add(new BasicNameValuePair("make_year", makeyear));
    arr.add(new BasicNameValuePair("Expected_price", price));
    arr.add(new BasicNameValuePair("ownership", owner));
    arr.add(new BasicNameValuePair("location", location));
    arr.add(new BasicNameValuePair("cid", sPref.getString("id", "")));

    String imagesList = "";
    for (int i = 0; i < imageList.size(); i++) {
    File f = new File(imageList.get(i));
    imagesList += f.getName() + ",";
    }
    arr.add(new BasicNameValuePair("images", imagesList.substring(0, imagesList.length() - 1)));

    HttpClient client = new DefaultHttpClient();
    HttpPost post = new HttpPost(urls[0]);

    post.setEntity(new UrlEncodedFormEntity(arr));

    HttpResponse response = client.execute(post);
    msg = EntityUtils.toString(response.getEntity());

    } catch (Exception e) {
    msg = e.getMessage();
    }
    return msg;
    }

Answer 1

在这段代码中尝试out.close();就像这样

try {
out = new FileOutputStream(filename);
scaledBitmap.compress(Bitmap.CompressFormat.JPEG, 80, out);
} catch (FileNotFoundException e) {
e.printStackTrace();
} finally {
   out.close();
}

在android中使用图像压缩，每件事情都运行正常，但是当我将图像上传到服务器时，它就会被破坏

1 个答案: