DaVinci

DaVinci is an image downloading and caching library for Android Wear

Usage

Use DaVinci from your SmartWatch app

DaVinci.with(context).load("/image/0").into(imageView);
DaVinci.with(context).load("http://i.imgur.com/o3ELrbX.jpg").into(imageView);

Into an imageview

DaVinci.with(context).load("/image/0").into(imageView);

Into a FragmentGridPagerAdapter

@Override
public Drawable getBackgroundForRow(final int row) {
    return DaVinci.with(context).load("/image/" + row).into(this, row);
}

Into a CallBack

DaVinci.with(context).load("http://i.imgur.com/o3ELrbX.jpg").into(new DaVinci.Callback() {
            @Override
            public void onBitmapLoaded(String path, Bitmap bitmap) {

            }
});

By default, the asset name used for the bitmap is "image", you can modify this

DaVinci.with(context).load("/image/0").setImageAssetName("myImage").into(imageView);

Send Bitmaps

In your smartphone service

    @Override
    public void onMessageReceived(MessageEvent messageEvent) {
        super.onMessageReceived(messageEvent);
        DaVinciDaemon.with(getApplicationContext()).handleMessage(messageEvent);
        ...
    }

Preload Bitmaps

Send image to wear

DaVinciDaemon.with(getApplicationContext()).load("http://i.imgur.com/o3ELrbX.jpg").send();

or with "/image/0" path

DaVinciDaemon.with(getApplicationContext()).load("http://i.imgur.com/o3ELrbX.jpg").into("/image/0");

Image Transformation

You can specify custom transformations on your Bitmaps

public class ResizeTransformation implements Transformation {
    private int targetWidth;

    public ResizeTransformation(int width) {
        this.targetWidth = width;
    }

    @Override
    public Bitmap transform(Bitmap source) {
        double aspectRatio = (double) source.getHeight() / (double) source.getWidth();
        int targetHeight = (int) (targetWidth * aspectRatio);
        Bitmap result = Bitmap.createScaledBitmap(source, targetWidth, targetHeight, false);
        if (result != source) {
            // Same bitmap is returned if sizes are the same
            source.recycle();
        }
        return result;
    }

    @Override
    public String key() {
        return "ResizeTransformation"+targetWidth;
    }
}

Pass an instance of this class to the transform method

DaVinci.with(context).load(url).transform(new ResizeTransformation(300)).into(imageView);

Prodvided Transformations :

Blur

DaVinci.with(context).load(url).transform(new BlurTransformation()).into(imageView);

Resizing

DaVinci.with(context).load(url).transform(new ResizeTransformation(maxWidth)).into(imageView);

Download

In your wear module

compile ('com.github.florent37:davinci:1.0.3@aar'){
    transitive = true
}

In your smartphone module

compile ('com.github.florent37:davincidaemon:1.0.3@aar'){
     transitive = true
}

Don't forget to add WRITE_EXTERNAL_STORAGE in your Wear AndroidManifest.xml

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

TODO

• Customize bitmap resizing (actually : width=300px)
• Enabling multiples transformations
• Apply transformations on Smartphone then send them to Wear

Community

Looking for contributors, feel free to fork !

Wear

If you want to learn wear development : http://tutos-android-france.com/developper-une-application-pour-les-montres-android-wear/.

Dependencies

• Picasso used in DaVinciDaemon (from Square)
• DiskLruCache used in DaVinci (from JakeWharton)

Changelog

1.0.2

• Bitmaps are now saved as PNG to preserve transparency

Credits

Author: Florent Champigny www.florentchampigny.com/

Pictures by Logan Bourgouin

License

Copyright 2015 florent37, Inc.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.