CODEWITHSUNDEEP
androidandroid-studio
Alexis Heaton
Alexis Heaton

Reputation: 3

Android, How to download two images efficiently

I've tried lots of different ways to download images and none of them actually worked, i have managed to get something working but its not perfect. I made a new thread for downloading the bitmaps, im not storing them on the system storage or caching them in the memory for later use. If i keep opening this activity over and over, the ram usage for this app keeps getting higher and higher, and i do not want that at all!

                URL url = new URL("http://10.0.0.21:80/1.png");
                bitmapOne = BitmapFactory.decodeStream(url.openStream());

                URL url2 = new URL("http://10.0.0.21:80/2.png");
                bitmapTwo = BitmapFactory.decodeStream(url2.openStream());

                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        image.setImageBitmap(bitmapOne);
                        image2.setImageBitmap(bitmapTwo);
                    }});

Thank you all for your answers! but... I would only like to use pure java and no third party libraries for loading images, I was looking for a way to reduce memory usage and not so much of finding another way of downloading them. Im also not sure that having two urls and loading each stream looks very professional as the client could disconnect at any given moment (lets just pretend it does) and it does not load them both which are extremely required!

Upvotes: 0

Views: 105

Answers (3)

Silvio Tamaso D'Onofrio
Silvio Tamaso D'Onofrio

Reputation: 3149

Volley can be a good alternative too, with the ability of displaying animated gifs. This snippet illustrate the basic use, here with image cache, something that can make your app not to be memory and network too demanding:

    ImageLoader.ImageCache imageCache = new BitmapLruCache();
    ImageLoader imageLoader = new ImageLoader(Volley.newRequestQueue(getApplicationContext()), imageCache);
    NetworkImageView myImage = (NetworkImageView) findViewById(R.id.myImageView);
    myImage.setImageUrl(""+mSpeaker.getHeadshotUrl(), imageLoader);
    loadBitmap("http://yourdomain.com/yourImage.jpg", myImage);

For this to work all you need is the Volley library and BitmapLruCache.java

Upvotes: 0

Jay Ou
Jay Ou

Reputation: 63

https://github.com/zetbaitsu/Compressor

Usage: compressedImageBitmap = Compressor.getDefault(this).compressToBitmap(actualImageFile);

This library maybe helpful for you.

You can visit GitHub. search "Android", sort by: "Most Stars" , lots of awesome library you will found.

Upvotes: 0

David
David

Reputation: 16277

Use Picasso library, everything will be a breeze:

ImageView imageView = (ImageView) findViewById(R.id.imageView);

Picasso.with(this)
       .load("http://SomeUrl/CodeFeature.jpg")
       .into(imageView);

A good tutorial can be found here.

Upvotes: 1

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