[置顶] iOS cell上button互斥 重用问题解决方法

cell中

 cell.selectBtn.tag =100 + indexPath.section;

    [cell.selectBtn addTarget:selfaction:@selector(selectAction:)forControlEvents:(UIControlEventTouchUpInside)];

    

 cell.selectBtn.selected =self.lastSelectTag
==100 + indexPath.section;//关键

点击方法

- (void)selectAction:(UIButton *)sender{

    

    if (self.lastSelectTag) {

    UIButton *btn = [self.viewviewWithTag:self.lastSelectTag];

        btn.selected =NO;

    }

    

    sender.selected =YES;

//self.lastSelectTag
全局变量，记录最后一次点击按钮tag值

    self.lastSelectTag = sender.tag;

    

    

}