上傳圖片時出現java.lang.OutOfMemoryError

Question

這是我的活動代碼，我使用asynctask來上傳文件，我只是傳遞圖像路徑數組。它還顯示其他數組請檢查錯誤日誌其他錯誤。

private class ServiceSync extends AsyncTask<ArrayList<String>, Integer, List<String>> { 

     private String res; 
     private String boundary; 
     private String LINE_FEED = "\r\n"; 
     private Context context; 
     private HttpURLConnection httpConn; 
     private String charset = "UTF-8"; 
     ; 
     private OutputStream outputStream; 
     private PrintWriter writer; 
     ProgressDialog mProgressDialog; 
     String requestURL = "URL"; 

     int count; 

     @Override 
     protected void onPreExecute() { 
      res = null; 
      count = 0; 
      //mProgressDialog = ProgressDialog.show(Create_NewsFeed.this, "","Uploading image"); 
      mProgressDialog = new ProgressDialog(Create_NewsFeed.this); 
      mProgressDialog.setMessage("Posting.. please wait..."); 
      mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); 
      mProgressDialog.setMax(100); 
//   mProgressDialog.show(); 
      try { 
       // creates a unique boundary based on time stamp 
       boundary = "===" + System.currentTimeMillis() + "==="; 

       URL url = new URL(requestURL); 
       httpConn = (HttpURLConnection) url.openConnection(); 
       httpConn.setUseCaches(false); 
       httpConn.setDoOutput(true); // indicates POST method 
       httpConn.setDoInput(true); 
       httpConn.setRequestProperty("Content-Type", 
         "multipart/form-data; boundary=" + boundary); 
       httpConn.setRequestProperty("User-Agent", "CodeJava Agent"); 
       httpConn.setRequestProperty("Test", "Bonjour"); 
       outputStream = httpConn.getOutputStream(); 
       writer = new PrintWriter(new OutputStreamWriter(outputStream, charset), 
         true); 

       writer.append("User-Agent" + ": " + "CodeJava").append(LINE_FEED); 
       writer.flush(); 
       writer.append("Test-Header" + ": " + "Header-Value").append(LINE_FEED); 
       writer.flush(); 

      } catch (Exception e) { 
      } 
     } 

     @Override 
     protected List<String> doInBackground(ArrayList<String>... imgPaths) { 
      try { 

       // Start parameter 
       addFormField("user_id", imgPaths[1].get(0)); //pass user_id 
       addFormField("description", imgPaths[1].get(1)); //pass description 
       addFormField("post_date", "1"); //pass user_id 
       addFormField("post_type", imgPaths[1].get(2)); //pass user_id 
       addFormField("price", "1000"); //pass user_id 
       //End parameter 

       File sourceFile[] = new File[imgPaths[0].size()]; 
       for (int i = 0; i < imgPaths[0].size(); i++) { 
        sourceFile[i] = new File(imgPaths[0].get(i)); 
       } 

       for (int i = 0; i < imgPaths[0].size(); i++) { 
        addFilePart("uploaded_file[]", sourceFile[i]); 
        count++; 
       } 
       return multipartfinish(); 

      } catch (Exception e) { 
      } 
      return null; 
     } 

     @Override 
     protected void onProgressUpdate(Integer... values) { 
      super.onProgressUpdate(values); 
      mProgressDialog.setProgress(values[0]); 
     } 

     @Override 
     protected void onPostExecute(List<String> ress) { 
      try { 
       if (ress == null) { 
        mProgressDialog.dismiss(); 
        Toast.makeText(getApplicationContext(), "Failed to upload files", Toast.LENGTH_SHORT).show(); 
       } 

       if (ress.size() > 0) { 
        for (int i = 0; i < ress.size(); i++) { 
         Toast.makeText(getApplicationContext(), ress.get(i), Toast.LENGTH_SHORT).show(); 
        } 
       } 

       mProgressDialog.dismiss(); 
       Intent i = new Intent(Create_NewsFeed.this,NewsFeed.class); 
       startActivity(i); 
       finish(); 
      } catch (Exception objEx) { 
       objEx.printStackTrace(); 
      } 
      mProgressDialog.dismiss(); 
     } 


     public void addFilePart(String fieldName, File uploadFile) 
       throws IOException { 

      SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyyMMddhhmmss"); 
      String ext = uploadFile.getName().substring(uploadFile.getName().lastIndexOf(".") + 1); 
      String fileName = simpleDateFormat.format(new Date()) + count + "." + ext; 

      // String fileName = uploadFile.getName(); 
      writer.append("--" + boundary).append(LINE_FEED); 
      writer.append(
        "Content-Disposition: form-data; name=\"" + fieldName 
          + "\"; filename=\"" + fileName + "\"") 
        .append(LINE_FEED); 
      writer.append(
        "Content-Type: " 
          + URLConnection.guessContentTypeFromName(fileName)) 
        .append(LINE_FEED); 
      writer.append("Content-Transfer-Encoding: binary").append(LINE_FEED); 
      writer.append(LINE_FEED); 
      writer.flush(); 

      FileInputStream inputStream = new FileInputStream(uploadFile); 

      Bitmap bitmap = BitmapFactory.decodeStream(inputStream); 
      ByteArrayOutputStream stream = new ByteArrayOutputStream(); 
      if (ext.equals("png")) { 
       bitmap.compress(Bitmap.CompressFormat.PNG, 30, stream); //compress to which format you want. 
      } else { 
       bitmap.compress(Bitmap.CompressFormat.JPEG, 30, stream); //compress to which format you want. 
      } 

      // byte [] buffer = stream.toByteArray(); 

      InputStream in = new ByteArrayInputStream(stream.toByteArray()); 
      int totalfilesize = in.available(); 

      byte[] buffer = new byte[4096]; 

      int bytesRead = -1; 
      int bytesend = 0; 
      while ((bytesRead = in.read(buffer)) != -1) { 
       int progress = (int) ((bytesend/(float) totalfilesize) * 100); 
       bytesend += bytesRead; 
       if (bytesRead <= totalfilesize) { 
        outputStream.write(buffer, 0, bytesRead); 
       } 
       publishProgress(progress); 
      } 
      outputStream.flush(); 
      inputStream.close(); 

      writer.append(LINE_FEED); 
      writer.flush(); 
     } 

     public void addFormField(String name, String value) { 
      writer.append("--" + boundary).append(LINE_FEED); 
      writer.append("Content-Disposition: form-data; name=\"" + name + "\"") 
        .append(LINE_FEED); 
      writer.append("Content-Type: text/plain; charset=" + charset).append(
        LINE_FEED); 
      writer.append(LINE_FEED); 
      writer.append(value).append(LINE_FEED); 
      writer.flush(); 
     } 

     public List<String> multipartfinish() throws IOException { 
      List<String> response = new ArrayList<String>(); 

      writer.append(LINE_FEED).flush(); 
      writer.append("--" + boundary + "--").append(LINE_FEED); 
      writer.close(); 

      // checks server's status code first 
      int status = httpConn.getResponseCode(); 
      if (status == HttpURLConnection.HTTP_OK) { 
       BufferedReader reader = new BufferedReader(new InputStreamReader(
         httpConn.getInputStream())); 
       String line = null; 
       while ((line = reader.readLine()) != null) { 
        response.add(line); 
       } 
       writer.print(""); 
       writer.flush(); 
       reader.close(); 
       httpConn.disconnect(); 
      } else { 
       throw new IOException("Server returned non-OK status: " + status); 
      } 

      return response; 
     } 
    } 

這是我的logcat和我坐上位圖位= BitmapFactory.decodeStream（的inputStream）的錯誤;這條線，並且不知道發生了什麼問題請幫助我。

10-08 13:02:24.745 13450-13454/fourever.textile D/dalvikvm﹕ GC_CONCURRENT freed 1582K, 13% free 52794K/60295K, paused 12ms+15ms, total 69ms 
10-08 13:02:25.435 13450-14845/fourever.textile D/dalvikvm﹕ GC_FOR_ALLOC freed 492K, 13% free 52542K/60295K, paused 34ms, total 34ms 
10-08 13:02:25.435 13450-14845/fourever.textile I/dalvikvm-heap﹕ Forcing collection of SoftReferences for 7680016-byte allocation 
10-08 13:02:25.485 13450-14845/fourever.textile D/dalvikvm﹕ GC_BEFORE_OOM freed 10K, 13% free 52532K/60295K, paused 49ms, total 49ms 
10-08 13:02:25.485 13450-14845/fourever.textile E/dalvikvm-heap﹕ Out of memory on a 7680016-byte allocation. 
10-08 13:02:25.485 13450-14845/fourever.textile I/dalvikvm﹕ "AsyncTask #3" prio=5 tid=21 RUNNABLE 
10-08 13:02:25.485 13450-14845/fourever.textile I/dalvikvm﹕ | group="main" sCount=0 dsCount=0 obj=0x423b7c98 self=0x5d07d078 
10-08 13:02:25.485 13450-14845/fourever.textile I/dalvikvm﹕ | sysTid=14845 nice=10 sched=0/0 cgrp=apps/bg_non_interactive handle=1616684464 
10-08 13:02:25.485 13450-14845/fourever.textile I/dalvikvm﹕ | schedstat=(70530999 15854792 28) utm=6 stm=1 core=0 
10-08 13:02:25.485 13450-14845/fourever.textile I/dalvikvm﹕ at android.graphics.BitmapFactory.nativeDecodeStream(Native Method) 
10-08 13:02:25.490 13450-14845/fourever.textile I/dalvikvm﹕ at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:663) 
10-08 13:02:25.490 13450-14845/fourever.textile I/dalvikvm﹕ at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:735) 
10-08 13:02:25.490 13450-14845/fourever.textile I/dalvikvm﹕ at fourever.textile.mainclasses.Create_NewsFeed$ServiceSync.addFilePart(Create_NewsFeed.java:545) 
10-08 13:02:25.490 13450-14845/fourever.textile I/dalvikvm﹕ at fourever.textile.mainclasses.Create_NewsFeed$ServiceSync.doInBackground(Create_NewsFeed.java:481) 
10-08 13:02:25.490 13450-14845/fourever.textile I/dalvikvm﹕ at fourever.textile.mainclasses.Create_NewsFeed$ServiceSync.doInBackground(Create_NewsFeed.java:411) 
10-08 13:02:25.495 13450-14845/fourever.textile I/dalvikvm﹕ at android.os.AsyncTask$2.call(AsyncTask.java:287) 
10-08 13:02:25.495 13450-14845/fourever.textile I/dalvikvm﹕ at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 
10-08 13:02:25.495 13450-14845/fourever.textile I/dalvikvm﹕ at java.util.concurrent.FutureTask.run(FutureTask.java:137) 
10-08 13:02:25.495 13450-14845/fourever.textile I/dalvikvm﹕ at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) 
10-08 13:02:25.495 13450-14845/fourever.textile I/dalvikvm﹕ at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 
10-08 13:02:25.495 13450-14845/fourever.textile I/dalvikvm﹕ at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 
10-08 13:02:25.500 13450-14845/fourever.textile I/dalvikvm﹕ at java.lang.Thread.run(Thread.java:856) 
10-08 13:02:25.500 13450-14845/fourever.textile I/dalvikvm﹕ [ 10-08 13:02:25.500 13450:14845 D/skia  ] 
    --- decoder->decode returned false 
10-08 13:02:25.500 13450-14845/fourever.textile W/dalvikvm﹕ threadid=21: thread exiting with uncaught exception (group=0x40de72a0) 
10-08 13:02:25.515 13450-14845/fourever.textile E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #3 
    java.lang.RuntimeException: An error occured while executing doInBackground() 
      at android.os.AsyncTask$3.done(AsyncTask.java:299) 
      at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273) 
      at java.util.concurrent.FutureTask.setException(FutureTask.java:124) 
      at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307) 
      at java.util.concurrent.FutureTask.run(FutureTask.java:137) 
      at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) 
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 
      at java.lang.Thread.run(Thread.java:856) 
    Caused by: java.lang.OutOfMemoryError 
      at android.graphics.BitmapFactory.nativeDecodeStream(Native Method) 
      at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:663) 
      at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:735) 
      at fourever.textile.mainclasses.Create_NewsFeed$ServiceSync.addFilePart(Create_NewsFeed.java:545) 
      at fourever.textile.mainclasses.Create_NewsFeed$ServiceSync.doInBackground(Create_NewsFeed.java:481) 
      at fourever.textile.mainclasses.Create_NewsFeed$ServiceSync.doInBackground(Create_NewsFeed.java:411) 
      at android.os.AsyncTask$2.call(AsyncTask.java:287) 
      at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 
            at java.util.concurrent.FutureTask.run(FutureTask.java:137) 
            at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) 
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 
            at java.lang.Thread.run(Thread.java:856) 
10-08 13:02:36.530 13450-13450/fourever.textile I/Choreographer﹕ Skipped 623 frames! The application may be doing too much work on its main thread. 
10-08 13:02:36.630 13450-13450/fourever.textile D/SensorManager﹕ unregisterListener:: Trklfufi 9 budiwrd5mrfo5WirfulblrwuFmfulTrklfufi$KfukwiFmfulTrklfufiRvht@,)+be:*(
10-08 13:02:36.630 13450-13450/fourever.textile D/Sensors﹕ Remain listener = Sending .. normal delay 200ms 
10-08 13:02:36.630 13450-13450/fourever.textile I/Sensors﹕ sendDelay --- 200000000 
10-08 13:02:36.630 13450-13450/fourever.textile D/SensorManager﹕ JNI - sendDelay 
10-08 13:02:36.630 13450-13450/fourever.textile I/SensorManager﹕ Set normal delay = true 

Answer 1

有幾種方法可以解決這個問題。首先，您可以使用其他配色方案或其他比例來加載圖像。請注意，你會失去一些質量，但。

BitmapFactory.Options options = new BitmapFactory.Options(); 
//swt the color scheme to something less memory consuming 
options.inPreferredConfig = Config.RGB_565; 
//scale the image by factor 2 
options.inSampleSize = 2; 
Bitmap bitmap = BitmapFactory.decodeStream(stream, null, options); 

另請參閱this page。

你可以做的另一件事是加入

android:largeHeap="true" 

到application標籤啓用應用程序這一點，你可以在manifest做大堆大小。

Answer 2

您正在主線程上執行網絡操作。將您的網絡請求代碼放入doInBackGround()而不是OnPreExecute()。 並檢查您的圖像的大小，也可能是問題的原因。

Answer 3

請添加下面一行在你的文件上傳類：

httpConn.setChunkedStreamingMode(1024); 

您可以根據您的設備堆大小修改1024尺寸

更多詳細信息請點擊此鏈接：

http://technet.weblineindia.com/mobile/upload-large-video-on-server-using-multipart-in-android/