Picasso Load multiple images from URL
I am working on an application where I am using Picasso Library
to load an image from a url.
Now there is a situation: I can load one image from the url: http://8020.photos.jpgmag.com/3456318_294166_528c960558_m.jpg p>
but can't load multiple images from url: https://www.dropbox.com/sh/5be3kgehyg8uzh2/AAA-jYcy_21nLBwnZQ3TBFAea
this is my code:
package com.example.imagedownloadsample;
import java.io.File;
import java.io.FileOutputStream;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Environment;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.widget.ImageView;
import android.widget.ProgressBar;
import com.squareup.picasso.Callback.EmptyCallback;
import com.squareup.picasso.Picasso;
import com.squareup.picasso.Target;
public class MainActivity extends ActionBarActivity {
String currentUrl ="http://8020.photos.jpgmag.com/3456318_294166_528c960558_m.jpg";
//String currentUrl = "https://www.dropbox.com/sh/5be3kgehyg8uzh2/AAA-jYcy_21nLBwnZQ3TBFAea";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.image_download);
final ImageView img = (ImageView) (findViewById(R.id.imageView1));
final ProgressBar progressBar = (ProgressBar) findViewById(R.id.loading);
Picasso.with(this).load(currentUrl).error(R.drawable.error_detail)
.into(img, new EmptyCallback() {
@Override
public void onSuccess() {
progressBar.setVisibility(View.GONE);
}
@Override
public void onError() {
progressBar.setVisibility(View.GONE);
}
});
Picasso.with(this).load(currentUrl).into(target);
}
private Target target = new Target() {
@Override
public void onBitmapLoaded(final Bitmap bitmap, Picasso.LoadedFrom from) {
new Thread(new Runnable() {
@Override
public void run() {
String fileName = currentUrl.substring(
currentUrl.lastIndexOf('/') + 1,
currentUrl.length());
String fname = "/Android/data/com.usd.pop/image-"
+ fileName;
File file = new File(Environment
.getExternalStorageDirectory().getPath() + fname);
if (file.exists())
file.delete();
try {
file.createNewFile();
FileOutputStream ostream = new FileOutputStream(file);
bitmap.compress(CompressFormat.JPEG, 100, ostream);
ostream.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}).start();
}
@Override
public void onBitmapFailed(Drawable errorDrawable) {
}
@Override
public void onPrepareLoad(Drawable placeHolderDrawable) {
if (placeHolderDrawable != null) {
}
}
};
}
now my question is how to download all images from this url. https://www.dropbox.com/sh/5be3kgehyg8uzh2/AAA-jYcy_21nLBwnZQ3TBFAea
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3 answers
I may be stupid, but as I assume you are using Java, I can suggest you use this tutorial.
This is the code to render all images from the website:
public class ExtractAllImages {
public static void main(String args[]) throws Exception {
String webUrl = "http://www.hdwallpapers.in/";
URL url = new URL(webUrl);
URLConnection connection = url.openConnection();
InputStream is = connection.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
HTMLEditorKit htmlKit = new HTMLEditorKit();
HTMLDocument htmlDoc = (HTMLDocument) htmlKit.createDefaultDocument();
HTMLEditorKit.Parser parser = new ParserDelegator();
HTMLEditorKit.ParserCallback callback = htmlDoc.getReader(0);
parser.parse(br, callback, true);
for (HTMLDocument.Iterator iterator = htmlDoc.getIterator(HTML.Tag.IMG); iterator.isValid(); iterator.next()) {
AttributeSet attributes = iterator.getAttributes();
String imgSrc = (String) attributes.getAttribute(HTML.Attribute.SRC);
if (imgSrc != null && (imgSrc.endsWith(".jpg") || (imgSrc.endsWith(".png")) || (imgSrc.endsWith(".jpeg")) || (imgSrc.endsWith(".bmp")) || (imgSrc.endsWith(".ico")))) {
try {
downloadImage(webUrl, imgSrc);
} catch (IOException ex) {
System.out.println(ex.getMessage());
}
}
}
}
private static void downloadImage(String url, String imgSrc) throws IOException {
BufferedImage image = null;
try {
if (!(imgSrc.startsWith("http"))) {
url = url + imgSrc;
} else {
url = imgSrc;
}
imgSrc = imgSrc.substring(imgSrc.lastIndexOf("/") + 1);
String imageFormat = null;
imageFormat = imgSrc.substring(imgSrc.lastIndexOf(".") + 1);
String imgPath = null;
imgPath = "C:/Users/Machine2/Desktop/CTE/Java-WebsiteRead/" + imgSrc + "";
URL imageUrl = new URL(url);
image = ImageIO.read(imageUrl);
if (image != null) {
File file = new File(imgPath);
ImageIO.write(image, imageFormat, file);
}
} catch (Exception ex) {
ex.printStackTrace();
}
}}
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Pretty sure you need to know the name of all the images that you are retrieving.
So, you cannot extract everything from the URL, instead you will need to find out the name of each image and go through an array or something to get them individually.
Pretty sure you can't do this:
Picasso.with(this).load(http://someurl.com/photos/*).into(target);
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