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POAndroid File Upload Crash issue
 

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  1. POAndroid File Upload Crash issue
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    <p>The following code uploads file to the server:</p> <pre><code>import org.apache.http.HttpResponse; import org.apache.http.HttpStatus; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpPost; import org.apache.http.entity.mime.content.FileBody; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.params.BasicHttpParams; import org.apache.http.params.HttpConnectionParams; import org.apache.http.params.HttpParams; public String uploadFileForStorage(String serverUrl, String filePath) { StringBuilder responseMsg = new StringBuilder(); try { final File file = new File(filePath); HttpParams httpParameters = new BasicHttpParams(); // Set the timeout in milliseconds until a connection is // established. HttpConnectionParams.setConnectionTimeout(httpParameters, UPLOAD_CONNECTION_TIME_OUT); // Set the default socket timeout (SO_TIMEOUT) // in milliseconds which is the timeout for waiting for data. HttpConnectionParams.setSoTimeout(httpParameters, UPLOAD_SOCKET_TIME_OUT); HttpClient httpClient = new DefaultHttpClient(httpParameters); if (serverUrl.contains("?")) { serverUrl = Utils.getProperUrlWithOutEncode(serverUrl); } HttpPost postRequest = new HttpPost(serverUrl); FileBody bin = new FileBody(file); CustomMultiPartEntity multipartContent = new CustomMultiPartEntity(new ProgressListener() { @Override public void transferred(long num) { total = total + num; } }); multipartContent.addPart(CUSTOM_FILE_TAG, bin); postRequest.setEntity(multipartContent); HttpResponse response = httpClient.execute(postRequest); if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent(), "UTF-8")); String sResponse; while ((sResponse = reader.readLine()) != null) { responseMsg = responseMsg.append(sResponse); } } else { responseMsg = responseMsg.append(String.valueOf(response.getStatusLine().getStatusCode())); } } catch (Exception e) { isError = true; } return responseMsg.toString(); } } </code></pre> <p>Files are being uploaded from Tablet SDCard. The above code works fine with multiple Android Tablets like Samsung Galaxy Note 10.1 &amp; Micromax Funbook 10 inch but crashes while uploading files in Samsung P6200. The crash doesnot immediately occur , but after 5-10% of uploading. </p> <p>Previously , the upload was working fine on Samsung P6200 too . I made the factory reset of the tablet but the crash at upload persists. Also , OutOfMemoryException is not being shown in the logcat. The log shows NullPointerException in a class file which it shouldnot. Assuming the problem to be a HeapSize issue , how can I handle the issue.</p> <p>Using the above code , I am able to upload file upto 400 MB from SDCard using SIM(3G / WiFi) with Android Tablets like Samsung Galaxy Note 10.1 &amp; Micromax Funbook 10.</p> <p>should adding the following line of code help ?</p> <pre><code>HttpConnectionParams.setSocketBufferSize(httpParameters, 8192); // or any value other than //8192 </code></pre>
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    1. USchiranjib
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    1. COCan you post logcat for the error case ? It might help pinpoint the error, but either way look at http://stackoverflow.com/questions/4455006/posting-a-large-file-in-android
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    2. CO"The log shows NullPointerException in a class file which it should not.". You really need to include information like this.
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      1. POAndroid File Upload Crash issue
      1. USReuben Scratton
    3. COReuben Scratton : Actually getting a NullPointer exception in an Activity where the layout only includes a Button which when clicked will start the upload process. In scenarios where the upload process is successful , the NullPointerException is never thrown. Thats the reason for not entering the details in the question. I dont think the NullPointerException is the real cause for the crash else it would have been thrown in all the scenarios.
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