Develop Reference

How can I load an image from URL without extension android

I want to load an image from a URL but it doesn't work because the link doesn't have an extension
Can this be solved???
URL example :
http://t0.gstatic.com/images?q=tbn:ANd9GcRf1EqE2kyW12HSb9gZZ8eTIPqNgVkjFis4GkTTYONIpoQtkIde4zybZ4iAqGlIHQ_pnEX499Oa
How can this be done??
public class MainActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ImageView img = (ImageView)findViewById(R.id.imageView1);
Bitmap bitImg = getBitmapFromURL("http://t0.gstatic.com/images?q=tbn:ANd9GcRf1EqE2kyW12HSb9gZZ8eTIPqNgVkjFis4GkTTYONIpoQtkIde4zybZ4iAqGlIHQ_pnEX499Oa");
img.setImageBitmap(bitImg);
}
public Bitmap getBitmapFromURL(String imageUrl) {
try {
URL url = new URL(imageUrl);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
Bitmap myBitmap = BitmapFactory.decodeStream(input);
return myBitmap;
} catch (IOException e) {
e.printStackTrace();
return null;
}
}

look at this post, i dont see his URL but i think Android libraries figure it out based on the data and headers:
BitmapFactory.decodeStream returning null when options are set
also, don't add an extension to a URL, it changes the URL!
http://www.google.com is not the same as http://www.google.com.html

load an image from a URL but it doesn't work because the link doesn't have an extension. Nonsense. Url.openconnection does not look at extensions. It does not work because you have a NetworkOnMainThreadException clearly visible in the LogCat. Never seen in the LogCat? Please go and look for it. Place your network code in an AsyncTask or thread to prevent this.

Bad Request (Error 400) getting static map in Android

I'm trying to get a static image from a map and put on my Android layout. So, looking for it I've found a code talking about Google Static Maps. Awesome! I've tried some URLs on my PC and it's working perfectly!
But my problem was when I've put the URL in Android to test it. WHen I try to get the input stream (the image), it gives me FileNotFoundExceptioin, because when I tried to connect, it threw me a Bad Request (error 400)
Here is my code:
public class ImageLoadingTask extends AsyncTask<String, Void, Bitmap> {
#Override
protected Bitmap doInBackground(String... stringURL) {
Bitmap bmp = null;
try {
URL url = new URL(stringURL[0]);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true);
conn.connect();
InputStream is = conn.getInputStream();
BitmapFactory.Options options = new BitmapFactory.Options();
bmp = BitmapFactory.decodeStream(is, null, options);
} catch (IOException e) {
e.printStackTrace();
}
return bmp;
}
#Override
protected void onPostExecute(Bitmap result) {
mapView.setImageBitmap(result);
super.onPostExecute(result);
}
}
String for test
Do I need a key for this?? Why don't I need a key for doing it in a browser?

The URL you're sending to Google has a strange character in it. Before sending it, run a URLEncode.encode() on it or if you're always showing São Paulo you could say "Sao Paulo" and let Google figure it out, or "S%C3%A3o%20Paulo". Personally I think the first one is less error prone but it's up to you.

BitmapFactory : unable to decode Stream

I'm pretty new to Android Development and spent all day looking into issues with my ListAdapter, but couldn't find any answers that helped me solve my problem.
I Have a JSON NewsString parsed from an URL and need to load the Thumbnail into the ListView.
I tried to Load it via Imageloader (https://github.com/novoda/ImageLoader#directloader-utility) and then convert the Bitmap to a Drawable so I can use it in my ListView (Did that before).
I Have the permissions in the Manifest:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" />
And the JsonObject is parsed in an AsyncTask where I try to load the image from Url.
try {
String url = e.getString("imageThumb");
Bitmap bmp = new DirectLoader().download(url);
Drawable d = new BitmapDrawable(null,bmp);
Log.d("getBitmap", d.toString());
row.put("thumb", d);
}catch (Exception e5) {
Log.e("IMG", "Failed to load Thumbnail From URL: "+e5.toString());
Drawable d = MainActivity.hweb_icon;
row.put("thumb", d);
}
but I always get the Same Error Message:
I tried several tutorials and other stuff, but it never worked out for me.
The URL is correct and does not need any encoding.
My previous approach looked like this :
try {
String url = e.getString("imageThumb");
InputStream in = new java.net.URL(url).openStream();
Bitmap bmp = BitmapFactory.decodeStream(in);
Drawable d = new BitmapDrawable(null,bmp);
row.put("thumb", d);
}catch (Exception e5) {
// handle it
Log.e("IMG", "Failed to load Thumbnail From URL : "+e5.toString());
}
Sorry if this question was already answered, but I found many solutions and tried them, but none of them helped me out.
Thx
pwittke
EDIT:
I created a new Testproject and the code below worked fine, so I started to deactivate every part that uses drawables somehow and turned out, that the SimpleAdapter cant load images that way... It can only load images from the resurces and not from an url... thx for your script britzl, it works fine, now I need to find a way to change my adapter for the images...

There are many ways to load a Bitmap from a URL. If you want to roll your own you can try something like:
public Bitmap loadImage(String url) {
DefaultHttpClient client = new DefaultHttpClient();
Bitmap bitmap = null;
try {
HttpResponse response = client.execute(new HttpGet(url));
HttpEntity entity = response.getEntity();
if(entity != null) {
InputStream in = entity.getContent();
bitmap = BitmapFactory.decodeStream(in);
}
}
catch (Exception e) {
}
return bitmap;
}
There's some things to consider, for instance if you run into Skia decoder errors you may have to wrap the stream. Read more here.
I would however recommend that you take a look at existing libraries. The up and coming Picasso library from Square is probably your best bet. Example:
Picasso.with(context).load("http://i.imgur.com/DvpvklR.png").into(imageView);

Android App Display Image From URL

I'm looking for a very basic function. I'm trying to design an app and all I want it to do is load an image from a URL.
I've found a few questions and websites, but they all seem to be older and dated, but what I think I'm having issues with is linking the code to activity main.xml for ImageView.
Any suggestions or links you have I would greatly appreciate, thank you.

Here, this is how I display image from url in the image view
you have to call this code from thread other than main thread
ImageView img = (ImageView) findViewById(R.id.imageView1);
try {
URL url = new URL("Your URL");
//try this url = "http://0.tqn.com/d/webclipart/1/0/5/l/4/floral-icon-5.jpg"
HttpGet httpRequest = null;
httpRequest = new HttpGet(url.toURI());
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response = (HttpResponse) httpclient
.execute(httpRequest);
HttpEntity entity = response.getEntity();
BufferedHttpEntity b_entity = new BufferedHttpEntity(entity);
InputStream input = b_entity.getContent();
Bitmap bitmap = BitmapFactory.decodeStream(input);
img.setImageBitmap(bitmap);
} catch (Exception ex) {
}
Be careful don't forget to surround the code with try catch(I have already done that in this code)
or you can use webview to load image from url
WebView web = (WebView) findViewById(R.id.webView1);
web.loadUrl("Your Url");
if you are trying to load image from the assets folder url will start like this
"file:///android_asset/yourimage.jpg"
else normal internet url like this
"http://0.tqn.com/d/webclipart/1/0/5/l/4/floral-icon-5.jpg"
hope this works for you
Good Luck

There is an opensource library called imageloader. It is widely used, you can use it directly or make code similar to it.
https://github.com/nostra13/Android-Universal-Image-Loader

You can take the image and on your php side convert it into a base64 and then on Android side decode it into a image.

The best practice to download image is to be done on the background Thread, so that it doesn't interrupt your Main Thread,then update the User Interface as needed.
public class MainActivity extends AppCompatActivity {
FrameLayout frameLayout;
ImageView imageView;
ProgressBar progressBar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
frameLayout= (FrameLayout) findViewById(R.id.containerlayout);
imageView= (ImageView) findViewById(R.id.imageView);
progressBar= (ProgressBar) findViewById(R.id.progressBar);
String url="http://www.flat-e.com/flate5/wp-content/uploads/cover-960x857.jpg";
MyTask myTask= new MyTask();
myTask.execute(url);
}
class MyTask extends AsyncTask<String, Void, Bitmap> {
#Override
protected void onPreExecute() {
progressBar.setVisibility(View.VISIBLE);
}
#Override
protected Bitmap doInBackground(String... voids) {
Bitmap bitmap=null;
try {
URL url =new URL(voids[0]);
HttpURLConnection connection= (HttpURLConnection) url.openConnection();
InputStream inputStream= connection.getInputStream();
bitmap = BitmapFactory.decodeStream(inputStream);
} catch (IOException e) {
e.printStackTrace();
}
return bitmap;
}
#Override
protected void onPostExecute(Bitmap bitmap) {
progressBar.setVisibility(View.GONE);
imageView.setImageBitmap(bitmap);
}
}
}
Here, in this example I created an inner class MyTask which extends the AsyncTask where i have done all my network operations. Make sure to add the Uses permission in your Manifest File.
Hope this works for you too.

How to display an image from an URL within textView

I have a textView. In my code I am adding some lines of text in it. I also want to display some image from an external URL (not from my resource folder) just in between those lines. Every thing is dynamic i.e. the text generated and the image URL will be generated on the flow.So i have to fetch the image through my code and add it.
Wondering if there is a way to insert images from external URL within text view? Also any better approach is always welcome.

You will have to use this along with asynctask,
open connection in doInbackground()
set image to textview in onPostExecute()
try {
/* Open a new URL and get the InputStream to load data from it. */
URL aURL = new URL("ur Image URL");
URLConnection conn = aURL.openConnection();
conn.connect();
InputStream is = conn.getInputStream();
/* Buffered is always good for a performance plus. */
BufferedInputStream bis = new BufferedInputStream(is);
/* Decode url-data to a bitmap. */
Bitmap bm = BitmapFactory.decodeStream(bis);
bis.close();
is.close();
Drawable d =new BitmapDrawable(bm);
d.setId("1");
textview.setCompoundDrawablesWithIntrinsicBounds(0,0,1,0);// wherever u want the image relative to textview
} catch (IOException e) {
Log.e("DEBUGTAG", "Remote Image Exception", e);
}
hope it helps

You are going to probably want to use an asynctask to grab the image. This will run in the background from your other tasks. Your code may look something like this:
public class ImageDownloader extends AsyncTask<String, Integer, Bitmap>{
private String url;
private final WeakReference<ImageView> imageViewReference;
//a reference to your imageview that you are going to load the image to
public ImageDownloader(ImageView imageView) {
imageViewReference = new WeakReference<ImageView>(imageView);
}
#Override
protected Bitmap doInBackground(String... arg0) {
if(isCancelled())
return null;
Bitmap retVal;
url = arg0[0];//this is the url for the desired image
...download your image here using httpclient or another networking protocol..
return retVal;
}
#Override
protected void onPostExecute(Bitmap result) {
if (isCancelled()) {
result = null;
return;
}
ImageView imageView = imageViewReference.get();
imageView.setImageBitmap(result);
}
#Override
protected void onPreExecute() {
...do any preloading you might need, loading animation, etc...
}