iOS14_AUv3_icon_hackaround.m

// if AudioComponentCopyIcon() returns nil, call this method and try again!
- (void)componentIconHack {
    AudioComponentDescription searchDesc = { 0,};
    AudioComponent comp = NULL;
    while(true) {
        comp = AudioComponentFindNext(comp, &searchDesc);
        if(!comp)
            break;
        
        UIImage *img;
        if (@available(iOS 14.0, *)) {
            img = AudioComponentCopyIcon(comp);
        } else {
            img = AudioComponentGetIcon(comp, 256);
        }
        if(img) {
            NSLog(@"--- componentIconHack: got icon: %@",img);
            return;
        }
    }
    NSLog(@"--- componentIconHack: Could not find any AudioComponent with an icon!");
}