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iOS UITableView的Section Footer添加按钮

news 来源：原创 2024/7/2 4:11:48

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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;     } }