ImageCache.java 文件源码

@Override
public void onResponse(Call call, Response response) throws IOException {
    if (!response.isSuccessful()) {
        return;
    }

    try(ResponseBody body = response.body()) {
        Bitmap loaded = BitmapFactory.decodeStream(body.byteStream());
        if (loaded == null) { // decode failed
            return;
        }

        Bitmap scaled = Bitmap.createScaledBitmap(loaded, mCaller.getWidth(), mCaller.getHeight(), false);
        RoundedBitmapDrawable rbd = RoundedBitmapDrawableFactory.create(mCaller.getContext().getResources(), scaled);
        rbd.setCornerRadius(Math.max(scaled.getWidth(), scaled.getHeight()) / 2.0f);
        setRetrieved(rbd);

        ImageCache.getInstance(mCaller.getContext()).putCached(call.request().url().toString(), rbd);
        mCaller.post(this);
    }
}