UIButton 点击切换不同图片
2020-12-22 本文已影响0人
xu1Peng
_Bool isopen;
if (!isopen) {
[btn setBackgroundImage:[UIImage imageNamed:@"selebtndown"] forState:UIControlStateNormal];
} else {
[btn setBackgroundImage:[UIImage imageNamed:@"selebtnup"] forState:UIControlStateNormal];
}
isopen = !isopen;
