I've been having some problems implementing the new Palette library (on 4.4.4 with 'com.android.support:palette-v7:21.0.+'
). I am trying to color a part of each item in a GridView which works fine but when I scroll an item off the screen then back on it changes to a wrong color for a few moments before it goes back to the right color.
I thought the issue might have been calling view.setBackgroundColor
every time getView was called, so I made a check before my code if it had already had a color generated. This made it even worse. Each time I scrolled around colors would swap With enough scrolling all my colors have swapped places. It seems like the colors are switching with each other too, not random.
Heres a snippet of what my code looks like:
Palette.generateAsync(bitmap,
new Palette.PaletteAsyncListener() {
@Override
public void onGenerated(Palette palette) {
Palette.Swatch vibrant =
palette.getMutedSwatch();
if (vibrant != null) {
fView.findViewById(R.id.colored_bar).setBackgroundColor(
vibrant.getRgb());
}
}
});
Does anyone know a way to work around this problem? I heard mention of caching the response from Palette but wasn't sure if that would mean doing any more than I already am. I also tried both synchronous and asynchronous uses of Palette. Thanks.
I found the solution to this. Basically the problem was that the palette object was created every time, which was both costly and inaccurate. Since the palette is static, I created a ViewHolder and stored the palette in that once it was created.