Dalvikvm-heap增长堆（frag case）同时上传视频android

Question

我在从4X设备上传视频时遇到了问题。我知道在samsung S2中只有15秒的vedio重新编码将创建一个30 mb的文件，但当我试图在php服务器上首先上传视频时，它显示了如下消息：d/dalvikvm(7638):GC_FOR_ALLOC释放263K,9%空闲12838K/14087K,暂停13ms,总计13ms I/dalvikvm-heap(7638):Grow heap（frag情况）到14.481mb用于1048592字节分配d/dalvikvm(7638):GC_FOR_ALLOC释放<1K,9%空闲13861K/15175K,暂停22ms

I know it is the memory managment concept and device memory dependent but I want a real solution for it as I am stuck here from quite a few days.
Below is my code to call and upload the video to server.

public void newmethod( String Imageurl ) throws ClientProtocolException, IOException
{
    byte[] data ; 
    int bytenumber,bufferSize,bytesRead;
    int maxBufferSize = 1*1024*1024;
      DataOutputStream dos = null;
     //File sourceFile =  searchForFileInExternalStorage("video.3gp");

     Log.e("in the method the path", ""+Imageurl);

      FileInputStream fileInputStream = new FileInputStream(Imageurl);
      bytenumber = fileInputStream.available();
      Log.e("in the method the the size of the file is", ""+bytenumber);
     // dos = new DataOutputStream(conn.getOutputStream());
      bufferSize = Math.min(bytenumber, maxBufferSize);
      data = new byte[bufferSize];
     //ProgressDialog pr = new ProgressDialog(getApplicationContext());
    // pr.addContentView(getCurrentFocus(), null);
       // read file and write it into form...
       bytesRead = fileInputStream.read(data, 0, bufferSize);

       while (bytesRead > 0) {
       // dos.write(data, 0, bufferSize);
        bytenumber = fileInputStream.available();
         bufferSize = Math.min(bytenumber, maxBufferSize);
        bytesRead = fileInputStream.read(data, 0, bufferSize);
        }

     // pr.show();


    HttpClient httpClient = new DefaultHttpClient();
    HttpPost postRequest = new HttpPost("http://67.52.165.116/Kakz/mobiles/uploadvideo");
    ByteArrayBody bab = new ByteArrayBody( data, Imageurl);
    MultipartEntity reqEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
    reqEntity.addPart("user_video", bab);

    FormBodyPart bodyPart=new FormBodyPart("title", new StringBody(title));
    reqEntity.addPart(bodyPart);
    bodyPart=new FormBodyPart("desc", new StringBody(description));
    reqEntity.addPart(bodyPart);
    bodyPart=new FormBodyPart("source", new StringBody("android"));
    reqEntity.addPart(bodyPart); 
    postRequest.setEntity(reqEntity);
    final HttpResponse response = httpClient.execute(postRequest);
    // FileInputStream fileInputStream = new FileInputStream(response.getEntity().getContent());


    runOnUiThread(new Runnable() {
         public void run() {

    //stuff that updates ui

             BufferedReader in = null;
            try {
                in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));

            } catch (IllegalStateException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            } catch (IOException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
                String line = null;

    try {
        while((line = in.readLine()) != null) {
            System.out.println(line);

            titleText.setText("");
            descriptionText.setText("");
          //  Toast.makeText(getApplicationContext(), "Video Uploaded successfully", Toast.LENGTH_LONG).show();

            if (line.equalsIgnoreCase("Its too Heavy")) {
            //  pr.dismiss();
                // titleText.setText("");
                //descriptionText.setText("");
                Toast.makeText(getApplicationContext(), "Video size is too heavy", Toast.LENGTH_LONG).show();

            }

            else if (line.equalsIgnoreCase("Error")) {
            //  pr.dismiss();
                // titleText.setText("");
                //descriptionText.setText("");
                Toast.makeText(getApplicationContext(), "Error uploading video", Toast.LENGTH_LONG).show();


            }

            else  if (line.equalsIgnoreCase("Uploaded")) {
                //pr.dismiss();
                 //titleText.setText("");
                //descriptionText.setText("");
                Toast.makeText(getApplicationContext(), "Video uploaded successfully", Toast.LENGTH_LONG).show();

            }

        }
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
         }
});

Please let me know that how I should manage the code to get it right.
Any help would be appreciated ASAP`enter code here`

Answer 1

我正面临着从4X设备上传视频的问题。

这不是问题。这是正常的行为，当您正在做非常高的成本操作（一个或多个）。您的堆的大小（隐式确定）在一个时刻是不够的，所以它需要增长。这是平等的行为，你应该如何写入清单

android:largeHeap="true"

这个财产不起作用。当堆需要更大的大小时，它会自己长大--当它需要的时候。这条消息通常会在您没有太多内存时显示。

GC_FOR_ALLOC释放263K,9%释放12838K/14087K,暂停13ms,总计13ms I/dalvikvm-heap（7638）

这里您只有9%的内存和堆需要增长。通常情况下，当alloc小于10%时会发生这种情况，并且不管您是否使用线程，一旦它是一个高成本的操作。并且当您的堆大小将达到一个“临界点”时，应用程序将自动停止，因为安全原因和VM。

一个可能的解决方案是，您需要将您的文件拆分成更小的块，然后逐个上传。