在处理UITableView表格时,我们希望在View底部添加按钮。
用户拖动UITableView时按钮能跟随移动。
如题,实现如下界面:
- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section { if (section >= kSetSetting) { return 80; } else{ return 2; } } - (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section { if (section >= kSetSetting) { UIView *footerView = [[UIView alloc] init]; footerView.userInteractionEnabled = YES; footerView.backgroundColor = [UIColor clearColor]; UIButton *loginButton = [UIButton buttonWithType:UIButtonTypeSystem]; [loginButton.layer setMasksToBounds:YES]; [loginButton.layer setCornerRadius:5.0]; [loginButton setBackgroundColor:[UIColor brownColor]]; [loginButton setTitle:@登陆 forState:UIControlStateNormal]; [loginButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]; [loginButton.titleLabel setFont:[UIFont systemFontOfSize:15]]; [loginButton setTranslatesAutoresizingMaskIntoConstraints:NO]; [loginButton addTarget:self action:@selector(loginBtnClick:) forControlEvents:UIControlEventTouchUpInside]; //[footerView addSubview:btnExit]; [footerView addSubview:loginButton]; UIButton *registerButton = [UIButton buttonWithType:UIButtonTypeSystem]; [registerButton.layer setMasksToBounds:YES]; [registerButton.layer setCornerRadius:5.0]; [registerButton setBackgroundColor:[UIColor brownColor]]; [registerButton setTitle:@注册 forState:UIControlStateNormal]; [registerButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]; [registerButton.titleLabel setFont:[UIFont systemFontOfSize:15]]; [registerButton setTranslatesAutoresizingMaskIntoConstraints:NO]; [registerButton addTarget:self action:@selector(registerBtnClick:) forControlEvents:UIControlEventTouchUpInside]; [footerView addSubview:registerButton]; NSDictionary *constraintsView = NSDictionaryOfVariableBindings(loginButton,registerButton); [footerView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@V:|-15-[loginButton]-15-| options:0 metrics:nil views:constraintsView ]]; [footerView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@|-20-[loginButton] options:0 metrics:nil views:constraintsView ]]; [footerView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@V:|-15-[registerButton(==loginButton)]-15-| options:0 metrics:nil views:constraintsView ]]; [footerView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@H:[loginButton]-30-[registerButton(==loginButton)]-20-| options:0 metrics:nil views:constraintsView]]; return footerView; } else { return nil; } } 原文章地址:http://www.2cto.com/kf/201506/407035.html
时间: 2024-11-04 14:31:46