俺常用的Android组件及使用方法

轮播图组件

https://github.com/Jude95/RollViewPager/blob/master/README_ch.md

 compile 'com.android.support:recyclerview-v7:25.0.0'

viewRoll = (RollPagerView) view.findViewById(R.id.viewRoll);
        viewRoll.setPlayDelay(3000);
        viewRoll.setAnimationDurtion(1000);
        ColorPointHintView hintVIew = new ColorPointHintView(getActivity(), Color.YELLOW,Color.WHITE);
        viewRoll.setHintView(new ColorPointHintView(getActivity(), Color.YELLOW,Color.WHITE));
final List<View> viewList = getViews();
viewRoll.setAdapter(new LoopPagerAdapter(viewRoll) {
    @Override
    public View getView(ViewGroup container, int position) {
        return viewList.get(position);
    }

    @Override
    protected int getRealCount() {
        return viewList.size();
    }
});

return view;

下拉刷新

使用android自带的下拉刷新功能

http://blog.youkuaiyun.com/lmj623565791/article/details/24521483（很详细）

网络框架okHttp

http://blog.youkuaiyun.com/lmj623565791/article/details/47911083

compile 'com.squareup.okhttp:okhttp:2.4.0'
compile 'com.squareup.okio:okio:1.5.0'

图片加载库(Picasso)

http://www.jcodecraeer.com/a/anzhuokaifa/androidkaifa/2014/0731/1639.html

compile 'com.squareup.picasso:picasso:2.5.2'

picasso圆形头像

添加transform类

public class CircleTransform implements Transformation {
    @Override
    public Bitmap transform(Bitmap source) {
        int size = Math.min(source.getWidth(), source.getHeight());

        int x = (source.getWidth() - size) / 2;
        int y = (source.getHeight() - size) / 2;

        Bitmap squaredBitmap = Bitmap.createBitmap(source, x, y, size, size);
        if (squaredBitmap != source) {
            source.recycle();
        }

        Bitmap bitmap = Bitmap.createBitmap(size, size, source.getConfig());

        Canvas canvas = new Canvas(bitmap);
        Paint paint = new Paint();
        BitmapShader shader = new BitmapShader(squaredBitmap,
                BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP);
        paint.setShader(shader);
        paint.setAntiAlias(true);

        float r = size / 2f;
        canvas.drawCircle(r, r, r, paint);

        squaredBitmap.recycle();
        return bitmap;
    }

    @Override
    public String key() {
        return "circle";
    }
}  

使用

Picasso.with(activity).load(mayorShipImageLink).transform(new CircleTransform()).into(ImageView);  

事件总线（EventBus）

compile 'org.greenrobot:eventbus:3.0.0'

orm（andbase）

orm ORMLite

http://blog.youkuaiyun.com/lmj623565791/article/details/39121377