iOS cell上button互斥 重用问题解决方法

 

1.cell中设置按钮两种状态

2.controller中设置

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

3.cellForRow中:

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

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

 

//关键 

 cell.selectBtn.selected =self.lastSelectTag == cell.selectBtn.tag;

 

 

 

4.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 = sender.tag;

    

    

}