Question

我正在尝试构建一个从相机中获取图像的Android应用程序。然后我将该图像发送到我构建和编辑它的Web服务。此刻我只是试图发送图像并将其取回并在imageView中显示。我只是想看看如何使用Web服务。我发送byte []并接收byte []。我是否必须转换为Web服务并返回其他类型，否则返回byte []？我使用ksoap2连接Web服务。当我得到结果以及如何将结果转换为位图时，我不知道该怎么办！任何帮助???????

代码：

    if (requestCode == CAMERA_DATA)
        if (resultCode == Activity.RESULT_OK) {
            Bundle extras = data.getExtras();
            bitmap = (Bitmap) extras.get("data");

            setContentView(R.layout.photo3);
            image = (ImageView) findViewById (R.id.imageView);

            ByteArrayOutputStream out = new ByteArrayOutputStream();
            bitmap.compress(CompressFormat.JPEG, 100, out);
            data1 = out.toByteArray();

            SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME); 
            request.addProperty("name",data1);  


            SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11); 
            envelope.dotNet = false;
            envelope.setOutputSoapObject(request);

            HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

              try {
               androidHttpTransport.call(SOAP_ACTION, envelope);

                SoapPrimitive resultsRequestSOAP = (SoapPrimitive) envelope.getResponse();

                //WHAT TO DO HERE

                image.setImageBitmap(btm);



              } catch (Exception e) {


              }






            try {
                out.close();
            }
            catch(IOException e){

            }
     }

Answer 1

您好请检查以下代码

第一种方法用于将文件in =转换为base64，第二种方法用于压缩任何图像。您可以使用这些代码编码到base64并添加从第一个方法返回的soap参数字符串

private String getEncodeData(String filePath) {
            String encodedimage1 = null;
            if (filePath != null && filePath.length() > 0) {
                try {
                    Bitmap bm = decodeFile(new File (filePath));
                    ByteArrayOutputStream baos = new ByteArrayOutputStream();  
                    bm.compress(Bitmap.CompressFormat.PNG, 50, baos); //bm is the bitmap object 
                    byte[] b = baos.toByteArray();
                    encodedimage1= Base64.encodeToString(b, Base64.DEFAULT);
                } catch (Exception e) {
                    System.out
                    .println("Exception: In getEncodeData" + e.toString());
                }
            }
            return encodedimage1;
        }

private Bitmap decodeFile(File f){
        Bitmap b = null;
        final int IMAGE_MAX_SIZE = 100;
        try {
            BitmapFactory.Options o = new BitmapFactory.Options();
            o.inJustDecodeBounds = true;
            FileInputStream fis = new FileInputStream(f);
            BitmapFactory.decodeStream(fis, null, o);
            fis.close();
            int scale = 1;
            if (o.outHeight > IMAGE_MAX_SIZE || o.outWidth > IMAGE_MAX_SIZE) {
                scale = (int) Math.pow(2.0, (int) Math.round(Math.log(IMAGE_MAX_SIZE / (double) Math.max(o.outHeight, o.outWidth)) / Math.log(0.5)));
            }
            BitmapFactory.Options o2 = new BitmapFactory.Options();
            o2.inSampleSize = scale;
            fis = new FileInputStream(f);
            b = BitmapFactory.decodeStream(fis, null, o2);
            fis.close();
        } catch (Exception e) {
            Log.v("Exception in decodeFile() ",e.toString()+"");
        }
        return b;
    }

请让我知道更多的困难

Answer 2

字节数组代表什么？这是一个特定格式的文件吗？（PNG，JPEG等）还是表示图像RGB（A）值的原始字节？在最后一种情况下，标准Java库的BufferedImage可能会有所帮助。特别是setRGB方法：http://docs.oracle.com/javase/1.4.2/docs/api/java/awt/image/BufferedImage.html#setRGB(int,%20int,%20int,%20int,%20int[],%20int,%20int)

只需实例化所需尺寸和正确图像类型的新BufferedImage，然后使用setRGB方法粘贴像素值。以后可以将其显示在ImageView中，或者只是保存在设备上。

我希望这会有所帮助......

将图像从android上传到Web服务

2 个答案: