I'm trying to download image from url and store that image to internal memory.I'm using picasso library(version:'2.5.0').But onBitmapLoaded() is not calling first time.i saw this link Picasso first run not call onBitmapLoaded in for loop. But it is not working for me.Please help me
final List<Target> targets = new ArrayList<Target>();
#Override
protected void onPostExecute(String sResult) {
for (int i = 0; i < arraylist.length(); i++) {
DownloadImage(arraylist.get(i));
}
}
public void DownloadImage(String ImageUrl){
final String imageDir = Environment.getExternalStorageDirectory() + "/Images/";
sPath = "";
Target target = new Target() {
#Override
public void onBitmapLoaded(final Bitmap bitmap, Picasso.LoadedFrom from) {
FileOutputStream fos = null;
try {
File myDir = new File(imageDir);
if (!myDir.exists()) {
myDir.mkdirs();
}
myDir = new File(myDir, fileName);
fos = new FileOutputStream(myDir);
sPath = myDir.getAbsolutePath();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, fos);
mStudent.setPhoto(sPath);
mStudentDB.addOrUpdateStudent(mStudent);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
fos.flush();
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
targets.remove(this);
}
#Override
public void onBitmapFailed(Drawable errorDrawable) {
targets.remove(this);
}
#Override
public void onPrepareLoad(Drawable placeHolderDrawable) {
}
};
Picasso.with(activity)
.load(ImageUrl)
.into(target);
}
I am downloading an image from internet and this is the path I chose to save it on the phone:
ContextWrapper cw = new ContextWrapper(mContext);
File directory = cw.getDir("imagesDB", Context.MODE_PRIVATE);
OutputStream output = new FileOutputStream(new File(directory,"profile.jpg"));
After the image has been downloaded I'm using this to get the path:
String databasePath = mContext.getDir("", Context.MODE_PRIVATE).getAbsolutePath();
databasePath = databasePath + "imagesDB/profile.jpg";
And then in my recyclerview adapter I use this:
Picasso.with(context).load(databasePath).placeholder(R.mipmap.ic_launcher).into(holder.Photo);
I always get the ic_launcher image displayed instead of the one I downloaded.
Am i using a wrong path for the image?
This is the code I use to download the image:
URL url = null;
try {
url = new URL("http://192.168.0.100/app/image/image1.jpg");
} catch (MalformedURLException e) {
e.printStackTrace();
}
InputStream input = null;
try {
input = url.openStream();
} catch (IOException e) {
e.printStackTrace();
}
try {
ContextWrapper cw = new ContextWrapper(mContext);
File directory = cw.getDir("imagesDB", Context.MODE_PRIVATE);
OutputStream output = new FileOutputStream(new File(directory,"profile.jpg"));
try {
byte[] buffer = new byte[10000];
int bytesRead = 0;
while ((bytesRead = input.read(buffer, 0, buffer.length)) >= 0) {
output.write(buffer, 0, bytesRead);
}
String databasePath = mContext.getDir("", Context.MODE_PRIVATE).getAbsolutePath();
Log.i("","Path1: "+ databasePath.toString());
databasePath = databasePath + "imagesDB/profile.jpg";
Log.i("","Path2: "+ databasePath.toString());
} finally {
output.close();
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
input.close();
} catch (IOException e) {
e.printStackTrace();
}
}
Ok the problem was that I can't pass a String to .load(), instead i have to create a new file like this:
Picasso.with(context).load(new File(databasePath)).into(holder.artistPhoto);
By the way I found the solution in this post:
Picasso Load image from filesystem
Recycler Adapter Using Picasso. Rest of the code if any one needs ask for it I will upload.
public class RecyclerAdapter extends RecyclerView.Adapter<RecyclerAdapter.MyViewHolder> {
private ArrayList<DogInfo> mArrayListInfo;
private Context context;
public RecyclerAdapter(ArrayList<DogInfo> mArrayListInfo,Context context) {
this.mArrayListInfo = mArrayListInfo;
this.context=context;
}
#Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view= LayoutInflater.from(parent.getContext()).inflate(R.layout.lay_display,null);
return new MyViewHolder(view);
}
#Override
public void onBindViewHolder(MyViewHolder holder, int position) {
DogInfo dogInfo=mArrayListInfo.get(position);
holder.mTextView.setText(dogInfo.getmInfo());
Picasso.with(context).load(dogInfo.getmImage()).into(holder.mImageView);
}
#Override
public int getItemCount() {
return mArrayListInfo.size();
}
public class MyViewHolder extends RecyclerView.ViewHolder {
ImageView mImageView;
TextView mTextView;
public MyViewHolder(View itemView) {
super(itemView);
mImageView= (ImageView) itemView.findViewById(R.id.imgShow);
mTextView= (TextView) itemView.findViewById(R.id.txtShow);
}
}
}
I have listview at which I am trying to implement an async task that loads the image into the view inside the getView method of my adapter. I have succeeded in creating this however my problem is that since in the listview and the adapter the view gets recycled, there is a short period of time when the user scrolls the listview that the imageView located in the layout shows the image of the view at a previous position. It then shows the correct image. I have tried setting the imageView bitmap to null inside the getView method before the async task is called but it still behaves the same. How do I load an image into a view using an async task without having the previous image shown before the image is finished loading?
hey follow few step to download image from server and show in your list view
Step 1. make this class in your project
OnImageDownloaded.java
public class OnImageDownloaded {
public OnImageDownloaded() {
try {
if (Environment.getExternalStorageState().equals(
Environment.MEDIA_MOUNTED)) {
File file = new File(Environment.getExternalStorageDirectory()
.getAbsolutePath() + File.separator + "your_Dir_name");
if (file.mkdirs()) {
}
} else {
Log.e("testing", "External Directory is not mounted");
}
} catch (Exception e) {
e.printStackTrace();
}
}
public void downloadTheImages(ArrayList<String> imageUrls) {
try {
new downloadingTheImages(imageUrls).execute();
} catch (Exception e) {
e.printStackTrace();
}
}
class downloadingTheImages extends AsyncTask<Void, Void, Void> {
ArrayList<String> imageUrls;
public downloadingTheImages(ArrayList<String> imageUrls) {
this.imageUrls = imageUrls;
}
#Override
protected Void doInBackground(Void... params) {
try {
for (int i = 0; i < imageUrls.size(); i++) {
if (imageUrls.get(i).equals("0")) {
} else
downloadTheImageIfRequired(imageUrls.get(i));
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
public void downloadTheImageIfRequired(String imageName) {
try {
String dirPath = Environment.getExternalStorageDirectory()
.getAbsolutePath()
+ File.separator
+ "your_Dir_name"
+ File.separator;
String CompleteFilePath = dirPath + imageName;
File f = new File(CompleteFilePath);
if (f.exists()) {
} else {
URL url = new URL(
"http image URL ::"
+ imageName);
URLConnection conexion = url.openConnection();
conexion.connect();
InputStream input = new BufferedInputStream(url.openStream());
OutputStream output = new FileOutputStream(CompleteFilePath);
byte data[] = new byte[1024];
int count;
while ((count = input.read(data)) != -1) {
output.write(data, 0, count);
}
output.flush();
output.close();
input.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
Step 2.
Check out how you get that image
private class getImage extends AsyncTask<Void, Void, String> {
Dialog dialog;
String url;
#Override
protected void onPreExecute() {
super.onPreExecute();
}
#Override
protected String doInBackground(Void... params) {
url = getResources().getString(R.string.baseurl) + "getNews";
JSONParser jParser = new JSONParser();
String json = jParser.getJSONFromUrl(url);
try {
JSONObject jobject = new JSONObject(json);
Log.e("testing", "url: " + url + " " + json);
int success = jobject.getInt("success");
Log.e("testing", "json length" + jobject.length());
for (int i = 0; i < jobject.length() - 1; i++) {
JSONObject jobj = jobject
.getJSONObject(Integer.toString(i));
if (success == 1) {
HashMap<String, String> hm = new HashMap<String, String>();
ArrayList<String> tempAl1 = new ArrayList<String>();
tempAl1.add(jobj.getString("image"));
if (tempAl1.size() > 0) {
new OnImageDownloaded().downloadTheImages(tempAl1);
}
Log.e("test", "image" + jobj.getString("image"));
hm.put(image, jobj.getString("image"));
aldata.add(hm);
}
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
if (dialog != null)
if (dialog.isShowing())
dialog.dismiss();
Custom_Adapter adapter = new Custom_Adapter (
(Activity) context, aldata);
lv.setAdapter(adapter);
}
}
Step 3.
Show that image in your adapter like this
call these methods in your getview in adaper
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
view = null;
if (view == null) {
LayoutInflater inflator = context.getLayoutInflater();
view = inflator.inflate(R.layout.news_view, null);
final ViewHolder viewHolder = new ViewHolder();
initAll(view, viewHolder);
view.setTag(viewHolder);
}
ViewHolder holder = (ViewHolder) view.getTag();
fillAll(holder, position);
return view;
}
public void fillAll(final ViewHolder holder, final int position) {
String dirPath = Environment.getExternalStorageDirectory()
.getAbsolutePath()
+ File.separator
+ "your_Dir_name"
+ File.separator;
String CompleteFilePath = dirPath + allData.get(position).get("image");
File f = new File(CompleteFilePath);
if (f.exists()) {
Log.e("testingTag", "if part");
holder.ivimage.setVisibility(View.VISIBLE);
catchOutOfMemory(holder.ivimage, CompleteFilePath);
} else {
Log.e("testingTag", "else part");
holder.ivimage.setVisibility(View.GONE);
}
Log.e("test", "image" + allData.get(position).get("image"));
}
void catchOutOfMemory(ImageView iv, String path) {
try {
iv.setImageURI(Uri.parse(path));
} catch (OutOfMemoryError e) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 8;
Bitmap preview_bitmap = BitmapFactory.decodeFile(path, options);
iv.setImageBitmap(preview_bitmap);
}
}
thats all thanks
I had the same problem, then I started using Square's Picasso , it's very simple and handles imageview recycling perfectly!
In your adapter, you need to use a ViewHolder (to recycle views effectively) and set a tag (on the view) to bind the view to the correct image. You already know the position in the getView(...) callback.
How to send an audio file from android phone to servlet. i have surfed so many sites but not getting the proper solution. Can anyone please help me.How many ways are there for sending an audio file from android to server.
HttpRequestWithEntity.java
import java.net.URI;
import java.net.URISyntaxException;
import org.apache.http.client.methods.HttpEntityEnclosingRequestBase;
public class HttpRequestWithEntity extends HttpEntityEnclosingRequestBase {
private String method;
public HttpRequestWithEntity(String url, String method) {
if (method == null || (method != null && method.isEmpty())) {
this.method = HttpMethod.GET;
} else {
this.method = method;
}
try {
setURI(new URI(url));
} catch (URISyntaxException e) {
e.printStackTrace();
}
}
#Override
public String getMethod() {
return this.method;
}
}
And here if you want to upload photo or video and you can show progressbar if you want.
public static class UploadPhoto extends AsyncTask<String, Void, InputStream> {
private static final String TAG = "UploadImage";
byte[] buffer;
byte[] data;
//private long dataLength = 0;
private INotifyProgressBar iNotifyProgressBar;
private int user_id;
private IAddNewItemOnGridView mAddNewItemOnGridView;
public UploadPhoto(INotifyProgressBar iNotifyProgressBar,
IAddNewItemOnGridView mAddNewItemOnGridView, int user_id) {
this.iNotifyProgressBar = iNotifyProgressBar;
this.user_id = user_id;
this.mAddNewItemOnGridView = mAddNewItemOnGridView;
}
#Override
protected InputStream doInBackground(String... names) {
File mFile = null;
FileBody mBody = null;
File dcimDir = null;
try {
String fileName = names[0];
dcimDir = Environment
.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
mFile = new File(dcimDir, Def.PHOTO_TEMP_DIR + fileName);
if (!mFile.isFile()) {
iNotifyProgressBar.notify(0, UploadStatus.FAILED);
return null;
}
HttpClient httpClient = new DefaultHttpClient();
HttpPost postRequest = new HttpPost(Def.BASE_URL
+ String.format("/%d/list", this.user_id));
final int maxBufferSize = 10 * 1024;
mBody = new FileBody(mFile, fileName, "image/jpeg", "UTF-8"){
int bytesRead, bytesAvailable, bufferSize;
InputStream mInputStream = super.getInputStream();
int dataLength = mInputStream.available();
#Override
public void writeTo(OutputStream out) throws IOException {
bytesAvailable = mInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
bytesRead = mInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0) {
out.write(buffer, 0, bufferSize);
bytesAvailable = mInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = mInputStream.read(buffer, 0, bufferSize);
int progress = (int) (100 - ((bytesAvailable * 1.0) / dataLength) * 100);
Log.d(TAG, "Result: " + progress + "%");
if (progress == 100) {
iNotifyProgressBar.notify(progress, UploadStatus.SUCCESS);
} else {
iNotifyProgressBar.notify(progress, UploadStatus.UPLOADING);
}
}
}
#Override
protected void finalize() throws Throwable {
super.finalize();
if (mInputStream != null) {
mInputStream.close();
}
}
};
MultipartEntity reqEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
reqEntity.addPart("photo", mBody);
postRequest.setEntity(reqEntity);
HttpResponse response = httpClient.execute(postRequest);
InputStream mInputStream = response.getEntity().getContent();
return mInputStream == null ? null : mInputStream;
} catch (IOException e) {
Log.e(TAG, "Error causes during upload image: " + e.getMessage());
e.printStackTrace();
iNotifyProgressBar.notify(0, UploadStatus.FAILED);
} finally {
Log.v(TAG, "Close file");
if (mFile != null) {
mFile = null;
}
if (mBody != null) {
mBody = null;
}
if (dcimDir != null) {
dcimDir = null;
}
}
return null;
}
#Override
protected void onPostExecute(InputStream result) {
if (result == null) {
iNotifyProgressBar.notify(0, UploadStatus.FAILED);
} else {
PhotoInfo mPhotoInfo = ApiUtils.convertStreamToPhotoInfo(result);
if (mAddNewItemOnGridView != null && mPhotoInfo != null) {
mAddNewItemOnGridView.notifyAdded(mPhotoInfo);
Log.d(TAG, "Upload completed!!");
} else {
Log.d(TAG, "Upload is failed!!");
iNotifyProgressBar.notify(0, UploadStatus.FAILED);
}
}
}
#Override
protected void onPreExecute() {
super.onPreExecute();
}
}
Servlet
package jp.co.bits.cpa.controller;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.io.FileUtils;
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Actions;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;
import org.apache.struts2.rest.DefaultHttpHeaders;
import org.apache.struts2.rest.HttpHeaders;
#ParentPackage(value="json-default")
#Namespace("/api/users/{user_id}")
#Result(
name=MyAction.GETDATA, type="json",
params={
"excludeNullProperties", "true",
"excludeProperties", "list.*\\.owner_id"
})
public class ListController implements Status, MyAction { //ModelDriven<Object>,
private static int STATUS = REQUEST_INVALID;
private File file;
private String contentType;
private String filename;
private String contentDisposition = "inline";
private String user_id;
private String sort; // asc || desc
private String type; // thumbnail || full
private String photo_id;
private PhotoHandler photoHandler = new PhotoHandler();
private HttpServletRequest request = ServletActionContext.getRequest();
private InputStream fileInputStream;
private String photoUrl;
private List<Photo> list = new ArrayList<Photo>();
private Photo photo;
#Actions(
value={
#Action(results={
#Result(name=SUCCESS, type="stream",
params={
"contentType", "image/jpeg",
"inputName", "fileInputStream",
"contentDisposition", "filename=\"photo.jpg\"",
"bufferSize", "1024",
"allowCaching", "false"
}),
#Result(name=UPLOAD, type="json", params={
"excludeNullProperties", "true",
"allowCaching", "false",
"excludeProperties", "contentType,photoFilename"
})
})
}
)
public HttpHeaders execute() throws FileNotFoundException {
HttpMethod method = HttpMethod.valueOf(request.getMethod());
String action = GETDATA;
switch (method) {
case GET: {
System.out.println("GET...");
if (this.sort != null && this.type == null) {
System.out.println(this.user_id);
STATUS = photoList();
} else if (this.type != null){
STATUS = download();
if (STATUS == CREATED) {
fileInputStream = new FileInputStream(new File(photoUrl));
if (fileInputStream != null) {
System.out.println("FileInputStream: " + fileInputStream.toString());
}
}
return new DefaultHttpHeaders(STATUS == CREATED ? SUCCESS : GETDATA).withStatus(STATUS);
} else {
STATUS = REQUEST_INVALID;
}
break;
}
case POST: {
System.out.println("Upload file...");
STATUS = saveFile();
System.out.println("Status: " + STATUS);
action = UPLOAD;
break;
}
default:
break;
}
System.out.println("Status: " + STATUS);
return new DefaultHttpHeaders(action).withStatus(STATUS);
}
public InputStream getFileInputStream() {
if (this.fileInputStream != null) {
return this.fileInputStream;
} else {
return null;
}
}
/**
*
* Get list photo by user_id and sort type (asc || desc)
* #return status code
*/
public int photoList() {
System.out.println("Get list...");
list.clear();
if (user_id == null || this.sort == null) {
return REQUEST_INVALID;
} else {
if (sort.equalsIgnoreCase(Def.SORT_ASC) ||
sort.equalsIgnoreCase(Def.SORT_DESC)) {
List<Photo> mPhotos = photoHandler.getList(user_id, this.sort);
if (mPhotos.size() == 0) {
return NO_PHOTO;
} else {
list.addAll(mPhotos);
return OK;
}
} else {
return REQUEST_INVALID;
}
}
}
/**
* using download image by using photo_id and type of photo (thumbnail || full)
* #return status code
*/
public int download() {
list.clear();
System.out.println("Download...");
if (type == null) {
type = Def.PHOTO_THUMBNAIL;
} else {
if (photo_id == null) {
return REQUEST_INVALID;
}
}
if (type.equalsIgnoreCase(Def.PHOTO_THUMBNAIL) ||
type.equalsIgnoreCase(Def.PHOTO_FULL)) {
String url = photoHandler.getUrl(this.photo_id, this.type);
if (url == null) {
return NO_PHOTO;
} else {
request = ServletActionContext.getRequest();
#SuppressWarnings("deprecation")
String path = request.getRealPath("/images/files/");
photoUrl = path + "/" + url;
return CREATED;
}
} else {
return REQUEST_INVALID;
}
}
/**
*
* #param pathImage
* #return true or false
*/
private boolean cropImage(String pathImage) {
Image originalImage;
BufferedImage thumbImage;
try {
originalImage = ImageIO.read(this.file);
thumbImage = Utils.makeThumbnail(originalImage, 100, 100, true);
File thumbFile = new File(pathImage);
System.out.println("Crop... " + pathImage);
return ImageIO.write(thumbImage, Def.DEFAULT_PHOTO_TYPE,
thumbFile);
} catch (Exception e) {
System.out.println("Error at CropIMAGE: " + e.getMessage());
return false;
}
}
private int saveFile() {
try {
int userId = Integer.parseInt(this.user_id); // Parse user_id can be failed
if (file != null && new UserHandler().isExisted(userId)) { // user_id always != null, please change to check user_id existed
System.out.println("Save File...");
request = ServletActionContext.getRequest();
#SuppressWarnings("deprecation")
String path = request.getRealPath("/images/files/");
System.out.println("Path-->: " + path);
System.out.println(this.filename); // Save file name to database
File fileToCreate = new File(path, this.filename);
String thumb_url = Def.THUMBNAIL_PREFIX + this.filename;
try {
FileUtils.copyFile(this.file, fileToCreate);
if (fileToCreate.isFile()) {
// int photoId = photoHandler.insertGetId(new Photo(
// Integer.parseInt(this.user_id), this.filename,
// this.filename, thumb_url));
if (cropImage(path + "/" + thumb_url)) {
this.photo = photoHandler.insertGetPhoto(new Photo(
Integer.parseInt(this.user_id), this.filename,
this.filename, thumb_url));
if (photo != null) {
return CREATED;
} else {
return REQUEST_INVALID;
}
} else {
System.out.println("Crop failed");
return REQUEST_INVALID;
}
} else {
System.out.println("create failed");
return REQUEST_INVALID;
}
} catch (IOException e) {
System.out.println("Error at Save file: " + e.getMessage());
if (fileToCreate.isFile()) { // Sometime, we upload fail but the filename or file still created.
fileToCreate.delete();
}
return REQUEST_INVALID;
}
} else {
System.out.println("File not found");
return REQUEST_INVALID;
}
} catch (Exception e) {
return REQUEST_INVALID;
}
}
public void setPhoto(File file) {
System.out.println("Set Photo File...");
this.file = file;
}
public void setPhotoContentType(String contentType) {
this.setContentType(contentType);
}
public void setPhotoFileName(String filename) {
this.filename = filename;
}
/**
*
* Get list for parse json
* #return list for parse json
*/
public List<Photo> getList() {
if (list.size() > 0) {
return list;
} else {
return null;
}
}
public String getPhotoFilename() {
if (this.filename == null) {
return null;
}
if (this.filename.isEmpty()) {
return null;
}
return this.filename;
}
public void setServletRequest(HttpServletRequest servletRequest) {
this.request = servletRequest;
}
public void setPhotoContentDisposition(String contentDisposition) {
this.setContentDisposition(contentDisposition);
}
public void setContentDisposition(String contentDisposition) {
this.contentDisposition = contentDisposition;
}
public String getContentDisposition() {
if (this.contentDisposition == null) {
return null;
}
if (this.contentDisposition.isEmpty()) {
return null;
}
if (this.contentDisposition.equals("inline")) {
return null;
}
return this.contentDisposition;
}
public String getContentType() {
if (this.contentType == null) {
return null;
}
if (this.contentType.isEmpty()) {
return null;
}
return this.contentType;
}
public void setUser_id(String user_id) {
this.user_id = user_id;
}
public void setSort(String sort) {
this.sort = sort.trim();
}
public void setPhoto_id(String photo_id) {
this.photo_id = photo_id.trim();
}
public void setType(String type) {
this.type = type.trim();
}
public void setContentType(String contentType) {
this.contentType = contentType;
}
public Photo getPhoto() {
return photo;
}
public void setPhoto(Photo detail) {
this.photo = detail;
}
}
Finally i have succeed in sending audio file from android to servlet. Following is my client side code
public class MainActivity extends Activity {
// static final String UPLOAD_URL = "http://192.168.223.1:8080/ReceiveFileServlet/RecFileServlet";
static final int BUFFER_SIZE = 4096;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new sendFile().execute(new String[] { "http://10.0.2.2:8080/ReceiveFileServlet/RecFileServlet" });
}
private class sendFile extends AsyncTask<String, Void, String>
{
#Override
protected String doInBackground(String... urls) {
HttpURLConnection httpConn=null;
try
{
String file = Environment.getExternalStorageDirectory().getAbsolutePath() + "/Tdt.aac";
File uploadFile = new File(file);
FileInputStream inputStream = new FileInputStream(uploadFile);
System.out.println("File to upload: " + file);
// creates a HTTP connection
URL url1 = new URL(urls[0]);
httpConn = (HttpURLConnection) url1.openConnection();
httpConn.setUseCaches(false);
httpConn.setDoOutput(true);
httpConn.setRequestMethod("POST");
httpConn.setRequestProperty("fileName", uploadFile.getName());
httpConn.connect();
// sets file name as a HTTP header
Log.i("fileName", uploadFile.getName());
// opens output stream of the HTTP connection for writing data
OutputStream outputStream = httpConn.getOutputStream();
// Opens input stream of the file for reading data
byte[] buffer = new byte[BUFFER_SIZE];
int bytesRead = -1;
System.out.println("Start writing data...");
while ((bytesRead = inputStream.read(buffer)) != -1) {
outputStream.write(buffer, 0, bytesRead);
}
System.out.println("Data was written.");
outputStream.close();
inputStream.close();
}
catch(SocketTimeoutException e)
{
Log.e("Debug", "error: " + e.getMessage(), e);
}
catch (MalformedURLException ex)
{
Log.e("Debug", "error: " + ex.getMessage(), ex);
}
catch (IOException ioe)
{
Log.e("Debug", "error: " + ioe.getMessage(), ioe);
}
try
{
// always check HTTP response code from server
int responseCode = httpConn.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
// reads server's response
BufferedReader reader = new BufferedReader(new InputStreamReader(httpConn.getInputStream()));
String response = reader.readLine();
System.out.println("Server's response: " + response);
} else {
System.out.println("Server returned non-OK code: " + responseCode);
}
}
catch (IOException ioex){
Log.e("Debug", "error: " + ioex.getMessage(), ioex);
}
return null;
}
#Override
protected void onPostExecute(String result) {
}
#Override
protected void onPreExecute() {
}
#Override
protected void onProgressUpdate(Void... values) {
}
}
}
here is my servlet code
public class RecFileServlet extends HttpServlet {
static final String SAVE_DIR = "D:/temp/";
static final int BUFFER_SIZE = 4096;
#Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
doPost(req, resp);
}
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
// Gets file name for HTTP header
String fileName = request.getHeader("fileName");
File saveFile = new File(SAVE_DIR + fileName);
// prints out all header values
System.out.println("===== Begin headers =====");
Enumeration<String> names = request.getHeaderNames();
while (names.hasMoreElements()) {
String headerName = names.nextElement();
System.out.println(headerName + " = " + request.getHeader(headerName));
}
System.out.println("===== End headers =====\n");
// opens input stream of the request for reading data
InputStream inputStream = request.getInputStream();
// opens an output stream for writing file
FileOutputStream outputStream = new FileOutputStream(saveFile);
byte[] buffer = new byte[BUFFER_SIZE];
int bytesRead = -1;
System.out.println("Receiving data...");
while ((bytesRead = inputStream.read(buffer)) != -1) {
outputStream.write(buffer, 0, bytesRead);
}
System.out.println("Data received.");
outputStream.close();
inputStream.close();
System.out.println("File written to: " + saveFile.getAbsolutePath());
// sends response to client
response.getWriter().print("UPLOAD DONE");
}
}
Refer my question on IllegalStateException in AsyncTask.
I am invoked the following AsyncTask from onPostExecute() of this task(Referred in this link).
public class SaveImageAsync extends AsyncTask<Context, Integer, String> {
private Bitmap bitmap = null;
private ArrayList<String> imageUrls = null;
private ArrayList<ImageView> imageViews = null;
int index = 0;
public SaveImageAsync(ArrayList<ImageView> imageViews,
ArrayList<String> imageUrls) {
this.imageUrls = imageUrls;
this.imageViews = imageViews;
}
#Override
protected String doInBackground(Context... params) {
boolean bRC;
String imageName, imageLocalPath, imageURL;
try {
for (int i = 0; i < imageUrls.size(); i++) {
imageURL = imageUrls.get(i);
String[] strSplittedImagePath = imageURL
.split("/");
if ((strSplittedImagePath != null)
&& (strSplittedImagePath.length >= 1)) {
imageName = strSplittedImagePath[(strSplittedImagePath.length - 1)];
} else {
imageName = imageURL;
}
imageLocalPath = path + imageName;
bRC = doesFileExists(imageLocalPath);
if (bRC == false) {
getImageFromServer(CommonSettings.mSTstrBaseURL
+ imageURL, imageLocalPath);
}
try {
bitmap = BitmapFactory
.decodeFile(imageLocalPath);
} catch (Exception e) {
}
if (bitmap == null) {
try {
new File(imageLocalPath).delete();
} catch (Exception e1) {
}
getImageFromServer(CommonSettings.mSTstrBaseURL
+ imageURL, imageLocalPath);
bitmap = BitmapFactory
.decodeFile(imageLocalPath);
}
Thread.sleep(300);
publishProgress();
}
} catch (InterruptedException e) {
e.printStackTrace();
Log.w(LOG_TAG,
"Got InterruptedException inside AsyncTask SaveImageAsync : "
+ e);
}
return null;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
}
#Override
protected void onProgressUpdate(Integer... values) {
super.onProgressUpdate(values);
ImageView imageView = imageViews.get(index);
while (imageView == null) {
index = index + 1;
imageView = imageViews.get(index);
}
imageView.setScaleType(ScaleType.FIT_XY);
imageView.setImageBitmap(bitmap);
index = index + 1;
//bitmap.recycle();
}
public boolean getImageFromServer(String url, String localPath) {
boolean bReturn = false;
File objNewFile;
try {
objNewFile = new File(localPath);
if (!objNewFile.exists()) {
objNewFile.createNewFile();
}
BufferedInputStream objBufferedInput = new BufferedInputStream(
new java.net.URL(url).openStream());
FileOutputStream objFileOutput = new FileOutputStream(objNewFile);
BufferedOutputStream objBufferOutput = new BufferedOutputStream(
objFileOutput, 1024);
byte[] data = new byte[1024];
int x = 0;
while ((x = objBufferedInput.read(data, 0, 1024)) >= 0) {
objBufferOutput.write(data, 0, x);
}
objFileOutput.flush();
objBufferOutput.flush();
objFileOutput.close();
objBufferOutput.close();
objBufferedInput.close();
bReturn = true;
} catch (IOException e) {
} catch (Exception ex) {
}
return bReturn;
}
}
When pressing back button and loading this task it throws OutOfMemoryException at decodeFile(). Why this happen and how to fix this?
Thanks