(1)在设置navigationItem的leftBarButtonItem或者rightBarButtonItem的时候,发现大小不起效果
UIButton *shareButton = [UIButton buttonWithType: (UIButtonTypeCustom)]; shareButton.frame = CGRectMake(0, 0, 30, 30); shareButton.backgroundColor = [UIColor blueColor]; [shareButton setImage:[UIImage imageNamed:@"mv_actionIconSaveToAlbum"] forState:(UIControlStateNormal)]; UIBarButtonItem *rightBtnItem = [[UIBarButtonItem alloc] initWithCustomView:shareButton]; self.navigationItem.rightBarButtonItem = rightBtnItem;
- 如果图片大小大于按钮,这个时候设置按钮的frame是不会起作用的,所以需要先将图片缩放,然后再放进button 里面就好了
