Question

I have implemented my custom Gallery using custom views instead of pictures.

Reference was http://www.programmingmobile.com/2011/08/android-tutorial-gallery-view-without.html

However now that I have about 8 custom views, containing complex layouts with lots of texts.

Problem is that the performance is very poor, I cache the views but scrolling is not smooth. With newer devices and tablets it’s ok, but is there some hints how to add performance for older devices? I considered making views bitmaps, but they have a lot pressed/not pressed drawables + the text content changes quite frequently.

Simply my adapters getView is like this, almost all the time it returns cached view, but scrolling is not smooth, might me rendering issue of the views?

@Override
    public View getView(final int position, View convertView, ViewGroup parent) {

        View cachedView = cachedViews.get(position);
        if (cachedView  != null) {
            return cachedView;
        }
    // Else inflate view etc.
    }

Answer 1

Most likely the implementation of all layouts are just too complicated to run on older device without hardware acceleration and the fact that Gallery is supposed to be used with images, so there’s not much to do here.