项目中关于同时给多个view添加手势的问题

先看两个代码的不同：

for (UIView *view in [self.RowTableView subviews]) {

            UITapGestureRecognizer *singleTapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTap:)];

            [singleTapGestureRecognizer setNumberOfTapsRequired:1];

            [view addGestureRecognizer:singleTapGestureRecognizer];

            view.backgroundColor = [UIColor blackColor];

        }

UITapGestureRecognizer *singleTapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTap:)];

        for (UIView *view in [self.RowTableView subviews]) {

            [singleTapGestureRecognizer setNumberOfTapsRequired:1];

            [view addGestureRecognizer:singleTapGestureRecognizer];

            view.backgroundColor = [UIColor blackColor];

        }

原因：

多个UIView添加同一个手势只有最后一个有用

所以只要创建多个手势  共用一个手势方法即可

所以第一个方式有效

移除手势

UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] init];

    if (did_delectBtn) {

        for (UIView *view in [self.RowTableView subviews]) {

            UITapGestureRecognizer *singleTapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTap:)];

            tap = singleTapGestureRecognizer;

            [singleTapGestureRecognizer setNumberOfTapsRequired:1];

            [view addGestureRecognizer:singleTapGestureRecognizer];

            view.backgroundColor = [UIColor blackColor];

        }

    }else{

        for (UIView *view in [self.RowTableView subviews]) {

            [view removeGestureRecognizer:tap];

        }

    }