获取iphone目录下所有图片
NSArray pngs = [[NSBundle mainBundle] pathsForResourcesOfType:@”png” inDirectory:nil];
for (id png in pngs)
{
NSString name = [png lastPathComponent];
if([name rangeOfString:@”page_”].location!=NSNotFound)
{
UIImage *image = [UIImage imageNamed:[png lastPathComponent]];
}
}